ML20244A883: Difference between revisions
StriderTol (talk | contribs) (StriderTol Bot change) |
StriderTol (talk | contribs) (StriderTol Bot change) |
||
Line 1: | Line 1: | ||
{{Adams | |||
| number = ML20244A883 | |||
| issue date = 03/29/1989 | |||
| title = Insp Repts 50-369/89-01 & 50-370/89-01 on 890120-0227. Violations Noted.Major Areas Inspected:Operations Safety Verification,Surveillance Testing,Maint Activities & Review of Plant Procedures | |||
| author name = Croteau R, Shymlock M, Vandoorn K | |||
| author affiliation = NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) | |||
| addressee name = | |||
| addressee affiliation = | |||
| docket = 05000369, 05000370 | |||
| license number = | |||
| contact person = | |||
| document report number = 50-369-89-01, 50-369-89-1, 50-370-89-01, 50-370-89-1, GL-88-17, IEB-85-003, IEB-85-3, NUDOCS 8904180247 | |||
| package number = ML20244A875 | |||
| document type = INSPECTION REPORT, NRC-GENERATED, INSPECTION REPORT, UTILITY, TEXT-INSPECTION & AUDIT & I&E CIRCULARS | |||
| page count = 19 | |||
}} | |||
See also: [[see also::IR 05000369/1989001]] | |||
=Text= | |||
{{#Wiki_filter:- - _ _ _ - _ - _ - _ - _ - _ - _ _ - _ _ _ - _ _ - _ _ _ _ _ _ - _ _ | |||
, '. | |||
, | |||
' | |||
. | |||
, | |||
gep* "% | |||
y' .- , UNITED STATES .. | |||
; ,, | |||
* | |||
NUCLEAR REGULATORY COMMISSION | |||
e,, | |||
J: REGION ll | |||
101 MARIETTA ST.. N.W. | |||
. %+, , , , *j ATLANTA, GEORGIA 30323 | |||
Report Nos. 50-369/89-01 and 50-370/89-01 | |||
Licensee: Duke Power Company | |||
422 South Church. Street | |||
Charlotte, NC 28242 | |||
Facility Name: McGuire Nuclear Station 1 and 2 | |||
Docket.No(s): 50-369 and 50-370 | |||
License No(s): NPF-9 and NPF-17 | |||
Inspection Conducted: an ry 20, 1989 - February 27, 1989 | |||
Inspectors: . | |||
K. Y I)o n | |||
M !/t./ at( Signed | |||
ff | |||
SeniorRf1dentInspector | |||
$/ S/ k? | |||
f.~Crte','esident/spector | |||
R /Date' Signed , | |||
Approved-by:. . | |||
, 27/// j J/h 9 | |||
M a .'Shymlock, Segfion Chief D6te sign #d i | |||
Division of Reactor Projects | |||
l | |||
l | |||
SUMMARY | |||
Scope: This routine unannounced inspection involved the areas of operations | |||
safety verification, surveillance testing, maintenance activities, | |||
review cf plant procedures, drawing system verification and follow-up | |||
on previous inspection findings. | |||
Results: In the areas inspected, the following issues were identified: | |||
Violation 369,370/89-01-01, Failure to Follow Maintenance | |||
Administrative Procedure. Three examples were identified involving | |||
l perfonning work without a work request and improper acceptance of | |||
j' operational control following maintenance. (Paragraphs 5 and 6) | |||
L | |||
! Licensee Identified Violation 369/89-01-02, Missed TS Surveillance on | |||
Snubbers. (Paragraph 6) | |||
[ | |||
Licensee Identified Violation 369/89-01-03, Breach of Fire Barriers. | |||
I | |||
(Paragraph 6) | |||
Violation 369/89-01-04, Inadem> ate Chemistry Procedure Leading to | |||
Inadvertent Dilution. (Paragraph 6) , | |||
l | |||
l | |||
$$41802478903a0 | |||
ADocK 05000369 | |||
G | |||
PNU | |||
l | |||
Lm . . . .. . . . . . __ _ . | |||
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . | |||
- - _ _ __ __ _. _ . - _ _ _ | |||
, . | |||
* | |||
t | |||
! . l | |||
l 2 | |||
I | |||
Violation 369,370/89-01-05, Followup of Improvements in Control Room ' | |||
Drawing Control. For reasons described in the report no Notice of i | |||
' | |||
Violation is being issued for.this violation. (Paragraph 10) | |||
Inspector Followup Item 369,370/89-01-06, Written Guidance on Use of ! | |||
Procedures. (Paragraph 11) | |||
Violation 369,370/89-01-07, Failure to Follow Procedures With Respect to ' | |||
Writing Problem Investigation Reports (PIRs). (Paragraph 12) | |||
: | |||
1 | |||
l | |||
l | |||
( | |||
l | |||
. 1 | |||
- - - - - - - - - _ _ _ _ _ _ - - _ _ _ _ _ - _ . _. l | |||
- - - _ - . _ _ - _ _ _ _ _ - _ - - _ _ _ _ - _ _ _ - _ _ - _ _ _ _ _ _ _ - _ - _ _ _ - _ . _ - _ _ - _ - | |||
,. . | |||
. | |||
! | |||
REPORT DETAILS | |||
'1. Persons Contacted- | |||
Licensee Employees | |||
*J.'Boyle, Superintendent of Integratea Scheduling | |||
*G. Gilbert, Acting Superintendent of Technical Services | |||
*T. McConnell, Plant Manager | |||
W. Reeside, Operations-Enginesr | |||
M. Sample, Superintendent ofiiaintenance | |||
*R. Sharp, Compliance Engineer | |||
J. Snyder, Performance Engineer | |||
*B. Travis, Superintendent of Operations | |||
R. White, Instrument and Electrical Engineer | |||
Other licensee employees contacted included construction craftsmen,. | |||
technicians, operators, mechanics, security force members, and office _ | |||
personnel. | |||
* Attended exit interview | |||
2. Unresolved Items | |||
An unresolved item (UNR) is a matter about which more information is | |||
required to determine whether it is acceptable or mayl involve a violation | |||
or deviation. There were no unresolved items identified in this report. | |||
' | |||
3. Plant Operations (71707, 71710) | |||
The inspection staff reviewed plant operations during the report period to | |||
verify conformance with applicable regulatory requirements. Control room | |||
logs, shift supervisors' logs, shift turnover records .and equipment | |||
removal and restoration records were routinely reviewed. Interviews were | |||
conducted with plant operations, maintenance, chemistry, health physics, | |||
and performance personnel. | |||
Activities within the control room were monitored during shifts and at | |||
shift ~ changes. Actions and/or activities observed were conducted as | |||
prescribed in applicable station administrative directives. The complement | |||
of licensed personnel on each shift met or exceeded the minimum required | |||
by Technical Specifications. | |||
Plant tours taken during the reporting period included, but were not ; | |||
limited to, the turbine buildings, the auxiliary building, Units 1 and 2 4 | |||
electrical equipment rooms, Units 1 and 2 cable spreading rooms, and the i | |||
station yard zone inside the protected area. j | |||
1 | |||
During the plant tours, ongoing activities, housekeeping, security, l | |||
equipment status and radiation control practices were observed. j | |||
I | |||
1 | |||
, | |||
.__._______ __ _ _ __ _ .. .. J | |||
__ | |||
, . | |||
. | |||
l | |||
' | |||
2 | |||
! | |||
} | |||
A detailed walkdown of the accessible portions of the Unit 1 auxiliary ; | |||
feedwater (CA) system was conducted by the inspectors. A CA Resistance ( | |||
Temperature Detector (RTD) was found disconnected and details are ! | |||
contained in paragraph 5. l | |||
l | |||
The inspectors reviewed the licensees progress relative to Generic ; | |||
Letter 88-17, Loss of Decay Heat Removal . The licensee appears to be ; | |||
thoroughly addressing the issue with appropriate detailed procedures | |||
under development. Further detailed inspections will be conducted at | |||
a later date. | |||
a. Unit 1 Operations | |||
Unit 1 operated at approximately 100 percent power for most of the | |||
report period. On February 12, 1989, power was reduced to 90 percent | |||
to repair the number two governor valve position indicator which had | |||
failed. The unit returned to full power approximately twelve hours | |||
later. , | |||
b. Unit 2 Operations | |||
The unit operated at approximate 100 percent power until January 27, | |||
1989. On January 27, 1989, at 4:30 p.m. the licensee observed | |||
indication of main condenser tube leakage on Unit 2. Turbine | |||
generator load was reduced in accordance with procedures to allow | |||
isolating and repairing the leaks. Load was reduced to approximately | |||
40 percent. Three condenser tubes were found leaking and a total of | |||
fifty two tubes were plugged. The unit returned to full power at | |||
10:05 a.m. January 29, 1989. The licensee believes steam impinging | |||
on the conderser tubes from a leaking turbine steam drain valve may | |||
have caused the tube leakage. The leakage from the drain valve was | |||
not stopped, however, and power was again reduced on February 22, | |||
1989, to approximately 85 percent in order to inspect and plug | |||
additional leaking condenser tubes. The un;t returned to full power | |||
on February 22, 1989. ! | |||
1 | |||
c. At the licensees request, the inspectors reviewed the licensees | |||
progress relative to Generic Letter 88-17, Loss of Decay Heat | |||
Removal. The licensee appears to be thoroughly addressing the issue | |||
with appropriate detailed procedures under development. Further | |||
detailed inspections will be conducted at a later date. | |||
No violations or deviations were identified. | |||
4. SurveillanceTesting(61726) | |||
Selected surveillance tests were analyzed and/or witnessed by the | |||
inspector to ascertain procedural and performance adequacy and conformance ; | |||
with applicable Technical Specifications. { | |||
Selected tests were witnessed to ascertain that current written approved 1 | |||
procedures were available and in use, that test equipment in use was { | |||
f | |||
I | |||
i | |||
1 | |||
.. | |||
. | |||
. _ _ _ _. | |||
. . | |||
- | |||
J | |||
-- | |||
., | |||
. | |||
k '' | |||
l | |||
i | |||
, 3 ) | |||
l | |||
l | |||
! | |||
calibrated,-that test prerequisites were met, that. system restoration was I | |||
completed and test results were adequate. { | |||
Detailed'below are selected tests which were either reviewed or witnessed: | |||
PROCEDURE- EQUIPMENT / TEST | |||
PT/2/A/4208/10B 2B NS HX Heat Balance f ' | |||
PT/1/A/4200/09A ESF Test | |||
PT/1/A/4206/09A NI Check Valve Movement Test | |||
No violations or deviations were identified. | |||
' | |||
5. Maintenance Observations (62703) | |||
a. Routine maintenance activities were reviewed and/or witnessed by the | |||
resident inspection staff to ascertain procedural and performance | |||
adequacy and conformance 'with applicable Technical Specifications. | |||
The selected activities witnessed were examined to ascertain that, | |||
where applicable, current written approved procedures were available | |||
and'in use, that prerequisites were met, that equipment restoration' , | |||
was completed and maintenance results were adequate, j | |||
Specific maintenance activities observed included: | |||
Activity Work Request No. | |||
. | |||
Control Room Activity Door No. 507 Repair 26740 ADM | |||
Troubleshooting Diesel Generator 137753 OPS | |||
2B Battery Charger | |||
Replacement of Power Range 68487 IAE | |||
Nuclear Instrumentation (N41) | |||
Meter and Potentiometer. | |||
! | |||
Replace CA-57 96430 NSM | |||
l | |||
Repair CA Turbine Trip Mechanism 500488 MNT :l | |||
(ReviewOnly) | |||
b. The . inspectors discussed painting of the auxiliary building relative | |||
to operability of the Auxiliary Building Ventilation System (VA), i | |||
Technical Specification (TS) 4.7.7.b. The TS requires testing after I | |||
painting in zones communicating with the system. By previous ! | |||
agr eement with the NRC - painting was defined as 1,000 square feet of , | |||
painted area and retesting was to be done after painting each 1,000 l | |||
square feet. The primary concern being carbon degradation in the i | |||
' | |||
charcoal absorber. Two years of data has shown negligible effect'on | |||
the carbon, therefore, the inspectors agreed that 5,000 square feet | |||
could be painted and larger amounts dependent on test results. The , | |||
! | |||
) | |||
~ | |||
. . | |||
, | |||
( ' | |||
l i | |||
4 | |||
l | |||
licensee requested this relief due to an afiort to improve | |||
housekeeping which includes repainting of the auxiliary building. | |||
The results after 5,000 square feet also showed no effect on the l | |||
carbon and, therefore, the licensee will paint larger amounts and | |||
retest as appropriate. At a minimum tests will be taken monthly. | |||
The inspectors agreed with this approach. | |||
c. On February 4,1989, during a walkdown of the auxiliary feedwater | |||
system, the Resistance Temperature Detector upstream of ICA-65 was | |||
found disconnected by the inspectors. The licensee inspected the | |||
other CA RTDs and found the RTD upstream of 1CA-57 also disconnected i | |||
and others were found damaged. These RTDs are installed to monitor ! | |||
check valve backleakage from the stecm generators to the CA pumps to l | |||
prevent steam binding of the pumps. The CA RTDs were reinstalled, | |||
however, a work request was not used to reinstall them. The RTDs are | |||
strap on devices that attach perpendicularly to the pipe. The straps | |||
were damaged such that the RTDs had slid under the straps and were | |||
parallel to the pipe and could not be reinstalled properly. | |||
l; | |||
After reinstallation, the RTD upstream of ICA-57 was reading between ! | |||
200 degrees and 246 degrees F; the operability limit is 250 ! | |||
degrees F. Attempts were made to reseat the valve with out success. ! | |||
The licensee then decided to replace the valve while on line. | |||
On February 15, 1989, while checking the job site setup prior to | |||
removal of ICA-57, the inspectors found the RTD upstream of ICA-57 | |||
again disconnected. Operations was not aware that the RTD had been | |||
disconnected and no work request had been authorized to remove the | |||
RTD. Work Request 96430NSM indicated that the RTD was removed on , | |||
February 15, 1989, however the work was not cleared to begin until | |||
February 16, 1989. Operations reconnected the RTD and again no work | |||
request was used. | |||
On February 16, 1989, maintenance personnel recorded on week request i | |||
l | |||
96430NSM that the CA RTD was already removed prior to starting work. | |||
Valve ICA-57 was replaced on February 16 and 17, 1989. | |||
After replacing 1CA-57 and restoring the system to operation, | |||
operations personnel noted that the RTD was still indicating high | |||
piping temperatures. Upon investigation it was discovered that the | |||
RTD had been incorrectly placed on the valve ICA-57 rather than | |||
further upstream. The RTD was moved, apparently without using a work | |||
request. The RTD continued to read high, though improved, and a fan | |||
was left on the piping to cool the line between the check valve i | |||
and the RTD. McGuire Maintenance Management Procedure (MMP) 1.0, | |||
" Definition of the Work Request Form," describes the use of a work | |||
request form to control work. Paritgraph B under the scope section | |||
specifies that corrective maintenance (replacement and/or repair of | |||
defective parts) shall require a work request. On several occasions, | |||
1 | |||
- _ _ - . | |||
- - _ - _. . - | |||
, | |||
, a s | |||
. | |||
5 | |||
4 | |||
as described previously, maintenance was performed in reinstalling | |||
and removing the CA RTDs without an authorized work request. This is | |||
considered a failure to follow administrative procedures and is | |||
identified as a violation of T.S. 6.8.1: 369,370/89-01-01, Failure | |||
to Follow Maintenance Administrative Procedure. { | |||
In reviewing the completed 1CA-57 work request 96430NSM it was noted | |||
that the Operation Control Accepted block was signed by the shift | |||
engineer (shift technical advisor) and not by a member of the | |||
operations department. MMP 1.0 section 2.20 states that the , | |||
Operation Control Accepted block shall be signed by a responsible | |||
representative of the group that gave clearance to begin work. | |||
Operations gave clearance to begin work and the shift engineer is in | |||
the Integrated Scheduling department. Apparently past practice has | |||
been to allow shift engineers to sign for operators in some | |||
circumstances (primarily for modifications), however, this is not in | |||
accordance with station procedures. The licensee indicated that it ' | |||
! | |||
is their intent to have shift engineers sign for clearing | |||
modifications in some cases. This is a second example of failure to i | |||
' | |||
follow administrative procedures, violation 269,370/89-01-01. | |||
d. The inspector accompanied NRC/NRR personnel to review the licensee's | |||
raw water fouling monitoring program. Heat exhanager and other raw | |||
water fouling is a general industry problem and the NRC is gathering | |||
information in order to develop a generic communication to the | |||
industry. The licensee has developed various methods to maintain | |||
heat exchangers included differential pressure (DP) and heat transfer | |||
testing, periodic cleaning and flushing and continuous DP monitoring | |||
of Component Cooling System heat exchangers. Visual and ultrasonic ! | |||
testing is also being utilized. These programs have been and will | |||
continue to be monitered by the NRC. | |||
One violation was identified in this area. (Also see paragraph 6). | |||
6. Licensee Event Report (LER) Followup (90712,92700) | |||
The following LERs were reviewed to determine whether reporting | |||
requirements have been met, the cause appears accurate, the corrective | |||
actions appear appropriate, generic applicability has been considered, and | |||
whether the event is related to previous events. Selected LERs were | |||
chosen for more detailed followup in verifying the nature, impact, and | |||
cause of the event as well as corrective actions taken. The following | |||
LERs are considered closed: | |||
(Closed) LER 369/88-23, Required Surveillance was not Performed on Two | |||
Snubbers. These snubbers were omitted since a formal snubber inspection | |||
list was not maintained. The snubbers omitted were subsequently inspected | |||
and found to be operable. The licensee is developing a computerized data s | |||
base program to track all safety related snubber inspection requirements. | |||
This event constitutes a violation of T.S. 3.7.8. This violation meets | |||
the criteria specified in Section V of the NRC Enforcement Policy for not | |||
issuing a Notice of Violation and is not cited. LIV 369/89-01-02, Missed | |||
TS Surveillance on Snubbers. | |||
__-_ _ ) | |||
E | |||
h3 2: .: | |||
. | |||
. | |||
6 | |||
i | |||
! | |||
(Closed)' LER -369/88-29, Fire Barriers Breached Due to Management | |||
Deficiency and Unknown Reasons. A management deficiency existed because | |||
vendor personnel involved had not received the appropriate training. | |||
Cause of the other breaches could not be determined.. Corrective actions | |||
are being taken to prevent recurrence of this event, however, there_have | |||
been several instances of breached fire barriers in the past several | |||
-years. 1his event constitutes a violation of TS 3.7.11. .This violation | |||
meets the criteria specified in_ Section V of the NRC Enforcement Policy ~ | |||
for not issuing a Notice of Violation and is not cited. LIV 369/89-01-03, | |||
Breach of Fire Barriers. The licensee is performing an evaluation of past | |||
fire barrier violations due to the large number of previous breaches. The , | |||
licensee stated that these occurrences have decreased in number over the | |||
' | |||
past several years. | |||
(Closed) LER 369/88-42, ESF Actuation Occurred Due to Personnel Error. | |||
An operator ' caused the motor driven auxiliary feedwater pump to auto start | |||
while in Mode 3 by resetting the ATWS Mitigation System and Actuation | |||
Circuitry (AMSAC). The operator had received training on_ the recently | |||
installed AMSAC system but reset the circuit when the operator mistakenly | |||
believed that the system was generating a signal to shut a blowdown valve | |||
which the operator was attempting to open. The valve was actually | |||
receiving an isolation signal from a high level in the blowdown tank. The l | |||
inspector reviewed the training package for the AMSAC modification and j | |||
found it to be adequate with the following exception. The training i | |||
package stated that the AMSAC indicating light on the control board was ' | |||
; | |||
lit when the system was bypassed. The indicating light is actually lit | |||
when the system is in the reset mode (not bypassed). The light itself is : | |||
' | |||
not labeled and located between the " Bypass" and " Reset" push buttons. In | |||
spite of the erroneous training operations personnel questioned by' the' i | |||
inspector were aware that the indication was lit when the system was | |||
reset. The nomenclature of the AMSAC system and no label on the ; | |||
indicating light are poor from a human factors perspective. Reseting ' | |||
other plant equipment serves to remove a signal restoring control to the | |||
operator but in this case reset caused an actuation signal to be generated | |||
in the plant conditions that existed at the time. The licensee is | |||
considering' relabeling the control switch and light. | |||
. | |||
(Closed) LER 370/88-06, ESF Actuation Due to Personnel Error and | |||
Procedure Deficiency. Violation 369,370/88-20-01 was issued with this | |||
event as one example. Corrective actions will be tracked in followup to | |||
the violation. | |||
(Closed) LER 370/88-13, Water Level ESF Actuation Instrumentation for a | |||
Main Feedwater Isolation Valve Inoperable for Indeterminate Period of | |||
Time. Although an ESF instrument was inoperable for an extended period of | |||
time an NRC Notice of Violation is not considered appropriate since the | |||
problem was discovered by licensee self initiated corrective actions and | |||
previous escalated enforcement was issued for problems with the same root | |||
cause (open sliding links and failure of the test program to discover the | |||
deficiency), see NRC Report No. 369,370/88-29. | |||
.- - | |||
, | |||
- __ - ___ _-- - - - _ - _ _ _ _ . _ _ __. _ _ - | |||
VL ;,. , | |||
;l | |||
- | |||
. | |||
7 | |||
' | |||
(Closed)-LER 369/89-01, Failure to Take Compensatory Measures When.Both- | |||
Trains of Control Room Area Ventilation Were Inoperable. This event was | |||
identified as a violation in paragraph 7 and corrective actions will be | |||
evaluated in. followup to the violation. -> | |||
The following LERs are also considered closed: -i | |||
' | |||
I | |||
; LER 369/88-24 LER 370/88-08. | |||
L LER 369/88-35 LER 369/88-43 ! | |||
LER 369/88-41' LER 369/88-46 l | |||
LER.369/88-44,'Rev.1 LER 369/88-47 ! | |||
Two licensee identified violations were identified as described above. | |||
7. Follow-up on Previous Inspect' ion Findings (92701,92702) | |||
The following previously identified items were reviewed to ascertain that | |||
^ | |||
the licensee's responses, where applicable, and licensee actions were.in | |||
compliance with regulatory requirements and corrective. actions have been l | |||
completed. Selective verification included record review, observations, | |||
' | |||
and discussions with licensee personnel, i | |||
(Closed) Inspector Followup Item 370/87-41-02, Both Trains of Control | |||
Room Ventilation and Chilled Water Fail Control Room Pressurization Test. | |||
The event was reviewed and corrective actions have been taken. A program l | |||
for checking control room door seals has been established. | |||
(Closed) Violation 369/88-09-03, Inoperable Nuclear Service Water Train | |||
Due to Inadequate ' Post Maintenance Test. Planners have reviewed this | |||
event to prevent recurrence. Failure to perform post maintenance tests I | |||
has occurred since this event. A racent example is documented in Report | |||
369,370/88-33, where CA-44 was not retested to set the travel stops after | |||
maintenance. | |||
(Closed). Violation 370/88-14-02, Failure to Follow Procedure and Failure | |||
to Use a Procedure to Perform Safety Related Work. The licensee | |||
attributed 'this event to personnel error on the part of the individual | |||
performing the work. The individual was counseled and station management | |||
has been stressing procedural compliance. This general area continues to | |||
be evaluated by the inspectors. | |||
(Closed) Violation 370/88-20-01 Failure to Follow Procedures / Inadequate l | |||
Procedures With Three Examples. The licensees corrective actions for i | |||
' | |||
these three examples have been verified complete by the inspectors. The | |||
second example involved a loss of offsite power due to improper | |||
implementation of a general procedure OP/2/A/6350/05, "AC Electrical | |||
Operation Other Than Normal Lineup." The licensee decided not to change | |||
the procedure since the number of possible variations of alignment would | |||
make a change to a more detailed procedure impractical. The licensee has | |||
chosen to control this type of evolution through the use of the Removal | |||
and Restoration (R&R) process. The inspectors will continue to observe | |||
licensee performance in the use of R&Rs. | |||
l | |||
___-- _ _ _ _ _ i | |||
_ _ _ _ _ | |||
. | |||
* . | |||
' | |||
. | |||
l | |||
' | |||
8 | |||
(Closed) Inspector Followup Item 369,370/88-04-01, Long Term Corrective | |||
Action Associated With Nuclear Service Water Expansion Joint Liner. The | |||
liner and bellows were replaced using a stainless steel flanged joint | |||
rather than a welded joint via a Nuclear Station Modification (NSM). The | |||
NSM was installed on Unit i during the last outage and will be installed | |||
on Unit 2 during the next refueling outage. | |||
(Closed) Temporary Instruction 369,370/T2515/77, Survey Of Licensee's | |||
Response to Selected Safety Issues. The completion of this instruction | |||
was due in 1986. Formal documentation in an inspection report indicating | |||
the instruction was completed could not be founu. The inspector verified | |||
that the information requested by this instruction had been transmitted to | |||
the proper NRC group in 1986 indicating that the instruction had been | |||
completed. | |||
(Closed) Inspector Followup Item 370/87-36-04, Review Electrical Breaker | |||
Coordination Resulting in 9/6/87 Trip. This event involved a ground on an | |||
instrument air (VI) compressor motor which tripped both the motor breaker . | |||
and the motor control center (MCC) feeder breaker. The McGuire NRC ! | |||
Diagnostic Evaluation Team (DET) report paragraph 3.5.6.2, also discussed | |||
this event and concluded that no NRC followup was considered necessary. A , | |||
' | |||
breaker coordination problem did, however, exist and the licensees Design | |||
division has an on-going review underway of breaker coordination as a part | |||
of an analytical model review. The essential power supply portion of the , | |||
review has been completed and the non-essential power supply is currently ! | |||
under review. This review includes normal and standby power supplies 4 | |||
under normal and faulted conditions. The DET was also concerned that the j | |||
' | |||
responsible design personnel were unaware at the time of any concern with | |||
breaker coordination problems at McGuire due to a communication concern. I | |||
Since the DET inspection, Design representatives have been stationed at | |||
the site and Design has been reorganized such that the design personnel | |||
involved deal only with McGuire. The inspector discussed the | |||
communications concern with the General Office Design person involved who l | |||
stated that information input and communication from the site are not a ; | |||
Design personnel also indicated that breaker | |||
' | |||
problem at this time. | |||
coordination is not assured in all cases since many of the breakers at | |||
McGuire have instantaneous and long time current trips and no short time | |||
trip. In some cases a ground may cause breaker coordination problems due | |||
to high instantaneous current trips. Design indicated that breakers are | |||
being replaced when needed with those having short time over current trips | |||
to provide breaker coordination. | |||
(Closed) Violation 369/88-09-02, Inoperable Component Cooling Train Due | |||
To Inoperable Nuclear Service Water (RN) Valve. The licensee postulated, | |||
that the travel stops on RN valve IRN-1908, service water flow control | |||
"alve to the component cooling heat exchanger, had come loose and vibrated | |||
out of position. Signs were placed on these valves warning against moving | |||
the travel stops and locking the stops securely after any authorized | |||
positioning. Corrective actions in the licensees response also included | |||
placing Loctite thread sealant on th travel stops for 1RN-190B and | |||
evaluating the need to put Loctite on all four of these valves. After | |||
' | |||
s __ m | |||
. _ - - _ _- _ | |||
4 .. ; | |||
' | |||
l | |||
. | |||
. | |||
' | |||
l 9 | |||
! | |||
Loctite was initially p _d on 1RN-190B the licensee subsequently decided i | |||
to discontinue use of Loctite in this application. Currently none of the ; | |||
The licensee stated that the | |||
' | |||
valves have Loctite on the travel stops. | |||
travel stops have not been found out of position since this event 'i | |||
occurred. In addition, these valves are scheduled to be replaced with | |||
more reliable valves in the early 1990's. All signs have been verified in | |||
place and tightness of the selected travel stops has been verified by the | |||
inspector. | |||
(Closed) Unresolved Item 369,370/88-33-03: Review of Control Room Door | |||
Seal Maintenance Affecting Operability of Control Room Ventilation. On ! | |||
January 17, 1989 Mechanical Maintenance personnel replaced the seals on a , | |||
control room door rendering Control Room Ventilation (VC) system l | |||
inoperable for approximately 5 hours. Instructions on the work request | |||
(WR) stated " Repair or adjust door closure after door seal is replaced". j | |||
Another WR was supposed to be implemented first which would have ; | |||
implemented adequate controls to maintain VC operable. Although the | |||
statement on the WR could be misleading it did not clearly authorize seal | |||
work to be accomplished. Maintenance Management Procedure (MMP) Scopa , | |||
Section Bl.0 requires a WR for maintenance activities. Responsibility l | |||
Section Bl.11 requires a description of requested work. This incident is | |||
considered a violation of both sections of MMP 1.0 in that unauthorized | |||
work was accomplished and the description of work was unclear. This is | |||
another example of violation 369,370/89-01-01, Failure to Follow | |||
Maintenance Administrative Procedures. | |||
! | |||
(Closed) Unresolved Item 369/88-33-07: Followup of Dilution Event. On ; | |||
January 10, 1989 a cation bed demineralized was placed in service which ! | |||
led to an unplanned dilution of the reactor coolant system. Operators l | |||
' | |||
acted in a timely manner to isolate the demineralized and boron concen- | |||
tration was returned to normal. Excore detectors rose approximately " | |||
. | |||
1.2% and the highest indication of excore power was 100.49%. While this | |||
event was not a significant transient, it is important that procedures i | |||
adequately control reactivity without unplanned changes. McGuire | |||
Procedure OP/1/A/6200/01, Chemical and Volume Control System, contains ! | |||
instructions for placing the cation bed demineralized in service. This | |||
procedure specifies boron saturating mixed bed demineralizers prior to , | |||
placing in service to ensure no change in reactivity, however, the | |||
procedure does not require boron saturating the cation bed demineralized | |||
rior to placing in service. The chemistry procedure in this case | |||
p(CP/0/B/8400/14) allowed filling of the demineralized with unborated water | |||
leading to the event. Therefore, this is a violation of Technical | |||
Specification 6.8.1 which requires that adequate written procedures be | |||
maintained for plant systems. This is violation 369/89-01-04: Inadequate | |||
Chemistry Procedure Leading to Inadvertent Dilution. | |||
(0 pen) Bulletin 85-03: As requested by Action Item e. of Bulletin 85-03, | |||
" Motor-Operated Valve Common Mode Failures During Plant Transients Due to | |||
Improper Switch Settings", the licensee identified the required | |||
safety-related valves, the valves' maximum differential pressures and a | |||
prograni to assure valve operability in their letters dated May 16, 1986, | |||
November 20, 1986, and February 18, 1987. Review of these responses | |||
indicated the need for additional information which was requested in NRC | |||
Region II letter dated March 31, 1988. | |||
____ ___ __ _________ __ . _ _ _ _ _ _ J | |||
_ - _ _ _ | |||
_._' . | |||
. | |||
4 | |||
10 | |||
; | |||
Review of the licensee's May 2, 1988, response to the request for 4 | |||
additional information indicates that the licensee's selection of the | |||
applicable safety-related valves to be addressed and the valve's maximum i | |||
differential pressures meets the requirements of the bulletin and that the l | |||
program to assure valve operability requested by Action Item e. of the | |||
bulletin is now acceptable, with the exception of providing justification ; | |||
in cases where testing with maximum differential pressure cannct , | |||
practicably be performed. Prior to final acceptance, differential i | |||
pressure testing will be examined more closely by a regional inspector. | |||
The results of the inspections to verify proper implementation of this | |||
program and the ' review of the final response required by Action Item f. of | |||
the bulletin will be addressed in additional inspection reports. | |||
Two violations were identified as described above. ' | |||
8. Review of Licensed Operators Medical Records (71707) | |||
10 CFR Part 55 requires that applicants for an operator's license be | |||
certified as medically fit. Documentation of medical examinations is | |||
required to be maintained and made available for review by the NRC. A | |||
random review of medical examination documentation was conducted from | |||
currently licensed reactor operators. | |||
No violations or deviations were identified. | |||
9. Escalated Enforcement Issues | |||
On January 19, 1989, two severity level III violations were issued | |||
concerning the operability of the hydrogen. skimmer (VX) system and , | |||
inadequate post modification testing. Reports 369,370/88-24 and 88-29 | |||
identified numerous concerns in these areas which ultimately resulted in | |||
the two severity level III violations. In order to correctly document the | |||
final disposition of these items, previously opened items 88-24-01, | |||
88-24-02, 88-24-03, and 88-24-04 are being combined into one item { | |||
369,370/88-24-03,VX Operability Violation. Also, 88-29-01, 88-29-02 and j | |||
88-29-03 are being combined into one item 369,370/88-29-01, Inadequate ' | |||
Post Modification / Maintenance Testing. These two items will remain open , | |||
pending review of completed corrective actions for the violations. l | |||
10. Drawing System Verification (37701, 39702) | |||
The inspector conducted a special inspection of the drawing control | |||
program and reviewed critical control room and technical support center ) | |||
drawings to verify the drawings were adequately controlled, legible and j | |||
usable by the operations staff for decision making during an emergency. l | |||
Licensee Station Directive (SD) 2.1.1 describes the licensee's process for l | |||
drawing control. SD 4.4.1 and 4.4.2 describe the program for modifica- | |||
tions including incorporation of modifications into drawings. Operations ; | |||
Management Procedure (OMP) 1-11 provides guidance to operations staff in l | |||
) | |||
! | |||
! | |||
1 | |||
! | |||
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | |||
j | |||
_ _ _ _ _ _ _ _ _ _ _ - _ | |||
' | |||
. . ! | |||
l | |||
. | |||
. | |||
11 ; | |||
maintaining critical drawings up to date relative to modifications. The | |||
licensee indicated that OMP 1-11 was being reviewed to add more detailed . | |||
control for updating drawings relative to modifications. The licensee ; | |||
' | |||
presently red marks critical drawings for significant plant modifications | |||
to assure current information is available while waiting on an official | |||
drawing change which typically takes several months. Addition of a valve | |||
would be a significant change and addition of a note would typically not | |||
be considered significant. Temporary modifications are not presently red | |||
marked. A note is placed on the drawing and the package is filed in the | |||
control room for reference. While these modifications are usuall- cimple | |||
in nature, the licensee is evaluating the need for red marking 'Se , | |||
licensee also intends to provide more guidance for complicated red marking | |||
and partially implemented modifications. The inspectors review showed ; | |||
that drawings were being red marked with appropriate reference to the j | |||
modification and a file was maintained of modification packages #or l | |||
further reference. Drawing stamps and red marking are supposed t be | |||
initialed by the clerk and a second person who is SR0 licensed. | |||
Some discrepancies were identified. An out of date drawing revision was | |||
noted. In addition, some markings were not properly initialed, two added | |||
drain valves were not red marked, some areas of electrical drawings were | |||
illegible and the modification file was in disarray. The inspector | |||
discussed these problems with the licensee. The licensee immediately | |||
initiated a complete audit of critical drawings and found additional | |||
similar discrepancies. The licensee initiated corrective actions. Out of | |||
date drawings and illegible areas were determined to be insignificant to | |||
operations. A number of discrepancies were found on control room drawings i | |||
but were not critical. These drawings are being evaluated for retention. | |||
Some drawings were found with unnecessary stamps or references to | |||
temporary modifications. The fi'le was reorganized and a training package | |||
was developed for shift clerks. Stamps and red marks have been validated | |||
and out of date drawings have been replaced. Additional reviews by an NRC | |||
team inspection (see Report 369,370/89-02) identified one out-of-date ; | |||
drawing since the licensee audit, identified several situations where the j | |||
control rrom had later drawings than the Master File and also discovered l | |||
that confusion may exist with operators as to whether the drawings are | |||
usable without using the NSM's on file. The licensee indicated that a | |||
Design Engineering master list was available, that operator training would ] | |||
be conducted and that Operations, Projects (lead group for modifications) l | |||
and Document Control personnel would be working together to verify I | |||
drawings which were affected by the modification process are up-to-date in | |||
all station groups. The Master file problems were apparently filing | |||
i errors only. The licensee also indicated that Document Control personnel | |||
had recently deleted distribution / accountability sheets and master file | |||
i audits for drawings. Individual groups were tasked with auditing. The l | |||
' | |||
licensee committed to evaluate the need for reinstating these processes or l | |||
l improving existing processes as necessary based on additional problems ! | |||
' | |||
found. | |||
l | |||
l | |||
_ _ _ - _ _ _ | |||
l | |||
LJ. . | |||
. | |||
' | |||
!. 12 | |||
l The licensee relies on -internal audits of individual groups and random | |||
audits / surveillance by quality assurance (QA) personnel. One QA | |||
surveillance of modifications was conducted in late 1988 with no problems | |||
. identified and one audit was conducted in 1987 with one minor finding. | |||
Past operations audits have apparently not been sufficiently broad based. | |||
The licensee was requested to consider an improved audit process. A , | |||
detailed walkdown of the Unit 1 Auxiliary Feedwater System against | |||
as-built drawings was also conducted (see paragraphs 3 and 5). | |||
The above discrepancies appear to have minor technical significance and | |||
the licensee initiated appropriate corrective action before the inspection | |||
period ended. This violation meets the criteria specified in Section V of | |||
the NRC Enforcement Policy for not issuing a Notice of Violation and is | |||
not cited. However, further followup wiil be conducted of licensee | |||
corrective actions. This is Violation 369,370/89-01-05: Followup of | |||
Improvements in Control Room Drawing Control. | |||
One violation was identified as described above which is not being cited. | |||
11. Review Of Plant Procedures (42700) | |||
! | |||
Due to an ongoing concern with failure to follow procedures the | |||
inspector reviewed procedures which define how specific procedures are to | |||
be implemented. Procedures reviewed included " Operations Management | |||
Procedure" (OMP) 1-2, "Use of Procedures"; OMP 2-17, "Tagout/ Removal and | |||
Restoration (R&R) Procedure" and Station Directive 4.2.1, " Handling of | |||
Station Procedures". The following comments are provided: | |||
a. The first statement in the OMP 1-2 section titled " General Statements | |||
of Philosophy" is that " Procedures do not cover all situations". | |||
While this is a true statement it appears inappropriate that this | |||
statement is listed first under philosophy. If procedure compliance | |||
is to be strongly emphasized, and may imply to some that procedures | |||
do not need to be followed. The OMP 1-2 later states that operators | |||
are required to take appropriate action to place the plant in a safe | |||
condition, independent of procedures. This is also an appropriate | |||
statement, however, the OMP should emphasize the use of procedures | |||
for most situations and processing changes when the time taken to | |||
process the change will not impact plant or personnel safety. In | |||
summary, the OMP should reflect the strict procedural compliance, an | |||
attitude that the licensee ihas verbally indicated it intends to | |||
enforce, | |||
b. OMP 1-2, Section 7.1.E under philosophy, states " Prior to using any | |||
procedure the initial conditions...must be verified. If these are | |||
not met, the procedure cannot be used without supervisory review and | |||
approval". This section does not state that a procedure change must | |||
be processed and, therefore, is unclear as to whether a change is , | |||
needed. A procedure change should be made if initial conditions | |||
cannot be met. | |||
,_ _ ._ | |||
1 1. | |||
, . | |||
. | |||
l | |||
. | |||
13 | |||
c. OMP 1-2, Section 7.2.E.1 allows signing a valve checklist even if the | |||
valve is mispositioned as long as a Removal and Restoration (R&R) | |||
exists. It seems to be more appropriate to sign the checklist noting | |||
that the valve mis-position is acceptable per R&R, | |||
d. OMP 1-2, Section 7.2.F states " Performance valve checklist may be | |||
performed by Operations to allow performance testing of certain | |||
systems. When the testing is complete, the checklist requires the | |||
valves to be returned to a " normal" position. This " normal" position | |||
may not correspond to the actual valve position required by the | |||
approved (0P) Operations Procedures currently in use. In such cases, | |||
the Performance valve checklist " normal" position should be signed | |||
off as being correctly positioned." | |||
There has been difficulty in the past with conflict between the final j | |||
position of valves in a performance test procedure and the position | |||
desired by Operations (per the OP in use or an R&R). Performance | |||
test procedures use various methods in an attempt to overcome this | |||
problem including recording the as found position in the PT and | |||
specifying returning the valve to the as found condition; specifying | |||
returning the valve to the position desired by operations; and . | |||
specifying final positions but allowing deviation from the final l | |||
position if an R & R is outstanding on the valve. However, the OMP | |||
paragraph allows signing for a valve which is out of position. Other | |||
alternatives exist that would not give the appearance of the , | |||
' | |||
performance procedure. | |||
e. OMP 1-2 Section 10.1.A states that "No deviation from the original | |||
intent of the procedure shall be allowed without an approved | |||
procedure change". The original intent is not defined and this | |||
statement allows the procedure user to interpret original intent | |||
without reviews. Original intent needs to be clearly defined and | |||
narrowly interpreted by procedure users. TS 6.8.3. in part states j | |||
that temporary changes to procedures may be made if the intent of the | |||
original procedure is not altered. Intent in the TS is not defined, | |||
however, the TS requires approval of a temporary change by two | |||
members of the plant management staff, at least one of whom must | |||
holds a senior operator license and review / approval by the plant | |||
manager or a superintendent within 14 days. The intent determination | |||
made by the procedure user per 0MP 1-2 does not receive the reviews | |||
required by the TS. | |||
f. OMP 1-2 outlines the use of procedures for Operations Department | |||
personnel but not for other station personnel. Only minimal guidance | |||
is provided for other personnel via Station Directive (SD) 4.2.1, | |||
" Handling of Station Procedures". Section 1.0 states that the | |||
objective of Station Directive 4.2.1 is to insure adequate prepara- | |||
tion, review and approval for all station procedures, changes and | |||
completed procedures. Ensuring proper use of procedures is not | |||
listed as an objective of SD 4.2.1. Section 4.0.9 of SD 4.2.1 is | |||
titled "Use of Procedures" but the guidelines are very limited. The | |||
licensee committed to revise SD 4.2.1 to be more specific in the | |||
. - - - - - - - - | |||
. | |||
,, # . q | |||
, | |||
x q | |||
. | |||
' | |||
14 | |||
' | |||
requirements for use of procedures in response to violation | |||
369/87-41-04 _ The revision of SD 4.2.1 dated' December 18, 1987 was | |||
incomplete in that the only change in~this area was to state'"Where | |||
an approved Station Procedure exists that covers station activities, J | |||
those station activities shall always be conducted in accordance with I | |||
, the provisions of the approved procedures." The revision to SD 4.2.1 | |||
was intended to reflect the management policy clarification on the . | |||
use of procedures as stated in the plant managers memorandum dated l | |||
10/27/87. This memorandum stated: =i | |||
(a) "If a station activity is important enough to have a procedure l | |||
written to perform the activity, then the procedure will always | |||
be used, in its entirety... Steps may not be deleted, skipped or | |||
altered without a procedure change being made unless specifi- | |||
cally allowed by the procedure. To perform the activity without | |||
the procedure IS NOT OPTIONAL." | |||
; | |||
(b) "Do not deviate from the scope of the , procedure unless the | |||
activity is covered by another procedure or administrative | |||
control, such as a troubleshooting procedure. Again, if the | |||
activity .'s important enough to be performed under procedural | |||
control, DO NOT PERFORM ACTIVITIES THAT G0 BEYOND THE PROCEDURE l | |||
without also using a procedure or other administrative | |||
controls". | |||
The actual change to SD 4.2.1 did not state that steps may not be | |||
deleted, skipped, or altered without a procedure change unless | |||
specifically allowed by the procedure. Part 8 of the memorandum .i | |||
likewise was not included in the station directive. Realistically J | |||
there are situations in which procedures cannot be followed or where | |||
alternate rethods are acceptable. Clear guidance needs to be ; | |||
' | |||
provided for these situations to maintain a proper attitude for | |||
following procedures and to assure correction of procedural problems. | |||
In summary, SD 4.2.1 appears weak in the area of providing guidance | |||
on use of procedures. | |||
g. "Tagout/ Removal and Restoration (R&R) Procedure", OMP 2-17 provides | |||
guidance for removal and resto"ation of equipment. However, very | |||
little guidance is provided relative to when an R&R can be used in | |||
lieu of a procedure. The licensee is developing this guidance based | |||
on an NRC violation (369,370/88-31-01). | |||
h. The licetsee hat independently recognized the need to improve | |||
guidance for use of Abnormal and Emergency procedures and is | |||
developing this guidance. | |||
Due to the history of weak procedural compliance and adequacy at | |||
McGuire, management has increned emphasis on following procedures | |||
and correcting inadequacies in procedures. However, the Station | |||
Directive and Operations Management Procedures governing use of | |||
procedures continue to be weak in providing adequate guidance 'to | |||
plant personnel. Again, it is noted that the OMP applies only to | |||
Operations Personnel and the Station Directive applies to all Station | |||
. _ _ _ - _ _ _ _ | |||
o- | |||
f a r a., | |||
b. | |||
4 | |||
.a 4 | |||
<m | |||
. , | |||
-15 l | |||
1 | |||
1 | |||
Personnel-b'ut the SD gives very l'ittle' guidance on use of procedures.: . | |||
The- current written guidance for use of procedures is. considered a i | |||
weakness and ~ an Inspector Followup Item IFI- 369,370/89-01-06, l | |||
Written Guidance on Use of Procedures, is being opened to followup in. j | |||
y this area. ; | |||
No violations or deviations were' identified. | |||
'12. Review of Problem Investigation Process .(71707) , | |||
The inspectors reviewed various problems and' events to determine if the' j | |||
stations corrective action program was being properly implemented relative l | |||
to these situations. Problem Investigation Reports (PIRs) were also. l | |||
reviewed .to determine adequacy of program implementation. The primary , | |||
program the licensee uses .for identifying, documenting and correcting j | |||
problems is the PIR program implemented by Station Directive 2.8.1, ; | |||
" Problem Investigation Process". This procedure requires in paragraph | |||
5.1.1 that " Problems identified that meet the criteria in Attachment 1 j ' | |||
shall be documented as soon as practical..." Attachment 1 defines the. | |||
criteria for writing a PIR as follows: | |||
; | |||
1. Unplanned,. unexpected, unenalyzed events, or conditions involving 1 ' | |||
important functions. | |||
2. Degradation, damage, failure, malfunction or 1oss of plant equipment | |||
performing important functions. | |||
3. Deviation from or deficiencies involving code, specifications | |||
(includes Tech Specs) requirements, or administrative controls | |||
involving important functions. o | |||
1 | |||
Two apparent failures- of the licensee to document problems in accordance | |||
with the above criteria were discovered by the inspectors. The licensee | |||
experienced a loss of Residual Heat Removal on December 1,1988 on Unit 1 | |||
in part due to a confusing drawing which had not been properly updated | |||
(see NRC Re 369,370/88-33). A problem was identified by the | |||
inspectors (portsee paragraph 5) involving . damaged Auxiliary Feedwater (CA) | |||
System temperature detectors. Neither of these issues were documented on | |||
a PIR. In addition, two other situations were documented on a PIR | |||
approximately two weeks after the events and after NRC prompting. One ; | |||
situation involved-a leaking CA check valve which was documented on PIR l | |||
1-M89-0046. Leakage of this valve can affect CA operability. Another , | |||
issue involved missing fuses causing a Diesel Generator breaker to not 1 | |||
function. Local - function (not emergency start) only was affected, i | |||
' | |||
however, this was a repeat problem which could indicate a program weakness | |||
or personnel problem. This situation was documented after prompting on ; | |||
_______ _ _ _ _ - - _ _ - _ _ _ _ _ _ _ _ _ - _ _ _ _ - _ - _ - _ _ _ - _ - . _ - - - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | |||
_ __ . _ _ - _ _ _ _ _ _ _ _ _ _ . | |||
, | |||
* . | |||
.. | |||
d | |||
. | |||
16 | |||
PIR 1-M89-0050. While the inspector cannot show that the PIRs would not | |||
have been issued, these issues appear to indicate weaknesses in aggressive | |||
program implementation. Another situation involved corrective maintenance 1 | |||
on the Unit 1 CA turbine driven pump. This work was documented on Work l | |||
Request (WR) 500488 MNT. The WR indicated that the overspeed trip | |||
mechanism was found inoperable indicating a possible past operability | |||
issue or maintenance problem. Upon questioning of two individuals by the l | |||
inspector each indicated that he thought the other was going to issue a | |||
l | |||
PIR. The licensee eventually decided to document the problem on an | |||
existing PIR which had been written previously identifying that the | |||
mechanism was not being periodically tested. This problem may not have | |||
been fully addressed without NRC prompting. | |||
The inspector reviewed PIR 0-M88-0022. This PIR documented problems with | |||
instrument air lines and prompted filter inspections and review for | |||
adequate sizing. Part of the corrective action was to evaluate the need | |||
for a preventive maintenance (PM) program. Given the problems experienced | |||
at McGuire and generally well known industry problems this corrective | |||
action appeared weak and would have allowed no program to be implemented | |||
based on one individuals decision. In addition, Quality Assurance | |||
personnel signed off the PIR indicating a PM program had been implemented. | |||
The air system is designed fail safe and is non-safety-related but this | |||
issue may also indicate weaknesses in program implementation. The first | |||
two examples are considered a Violation 369,370/89-01-07: Failure To | |||
Follow Procedure With Respect To Writing Problem Investigation Reports. | |||
Since this violation is indicative of program implementation weaknesses, | |||
both units are included. A review of licensee statistics did show the | |||
number of PIR's issued had increased through 1988 indicating an improving | |||
documentation trend. The licensee is trending numbers of PIR's on a | |||
monthly basis as a management tool. | |||
One violation was identified. | |||
13. Exit Interview (30703) | |||
The inspection findings identified below were summarized on February 27, | |||
1989, with those persons indicated in paragraph 1 above. The following | |||
items were discussed in detail: | |||
(0 pen) Violation 369,370/89-01-01, Failure to Follow Maintenance | |||
Administrative Procedure. Three examples were identified involving | |||
performing work without a work request and improper acceptance of | |||
operational control following maintenance. (Paragraphs 5 and 6) | |||
(Closed) Licensee Identified Violation 369/89-01-02, Missed TS | |||
Surveillance on Snubbers. (Paragraph 6) | |||
(Closed) Licensee Identified Violation 369/89-01-03, Breach of Fire | |||
Barriers. (Paragraph 6) | |||
_ _ _ _ _ _ _ _ _ _ , | |||
4 0-e | |||
. | |||
. | |||
. | |||
17 | |||
(0 pen) Violation 369/89-01-04, Inadequate Chemistry Procedure Leading to | |||
. Inadvertent Dilution. (Paragraph 7) | |||
(0 pen) Violation- 369,370/89-01-05, Followup of Improvements in Control | |||
Room Drawing Control. For reasons described in the report no Notice of i | |||
Violation is being issued for this violation. (Paragraph 10) | |||
(0 pen) Inspector Followup Item 369,370/89-01-06, Weakness in Written | |||
Guidance on Use of Procedures. (Paragraph 11) | |||
(0 pen) Violation 369,370/89-01-07, Failure to follow Proceduces With | |||
Respect to Writing Problem Investigation Reports (PIRs). (Paragraph 12) | |||
The licensee representatives present offered no dissenting comments, nor | |||
did they identify as proprietary any of the information reviewed by the ; | |||
inspectors during the course of their inspection. l | |||
, | |||
! | |||
, | |||
I | |||
i | |||
l | |||
l; | |||
i | |||
l | |||
L____ ---__ _ - . I | |||
}} |
Latest revision as of 04:55, 1 February 2022
ML20244A883 | |
Person / Time | |
---|---|
Site: | McGuire, Mcguire |
Issue date: | 03/29/1989 |
From: | Croteau R, Shymlock M, Vandoorn K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
To: | |
Shared Package | |
ML20244A875 | List: |
References | |
50-369-89-01, 50-369-89-1, 50-370-89-01, 50-370-89-1, GL-88-17, IEB-85-003, IEB-85-3, NUDOCS 8904180247 | |
Download: ML20244A883 (19) | |
See also: IR 05000369/1989001
Text
- - _ _ _ - _ - _ - _ - _ - _ - _ _ - _ _ _ - _ _ - _ _ _ _ _ _ - _ _
, '.
,
'
.
,
gep* "%
y' .- , UNITED STATES ..
- ,,
NUCLEAR REGULATORY COMMISSION
e,,
J: REGION ll
101 MARIETTA ST.. N.W.
. %+, , , , *j ATLANTA, GEORGIA 30323
Report Nos. 50-369/89-01 and 50-370/89-01
Licensee: Duke Power Company
422 South Church. Street
Charlotte, NC 28242
Facility Name: McGuire Nuclear Station 1 and 2
Docket.No(s): 50-369 and 50-370
License No(s): NPF-9 and NPF-17
Inspection Conducted: an ry 20, 1989 - February 27, 1989
Inspectors: .
K. Y I)o n
M !/t./ at( Signed
ff
SeniorRf1dentInspector
$/ S/ k?
f.~Crte','esident/spector
R /Date' Signed ,
Approved-by:. .
, 27/// j J/h 9
M a .'Shymlock, Segfion Chief D6te sign #d i
Division of Reactor Projects
l
l
SUMMARY
Scope: This routine unannounced inspection involved the areas of operations
safety verification, surveillance testing, maintenance activities,
review cf plant procedures, drawing system verification and follow-up
on previous inspection findings.
Results: In the areas inspected, the following issues were identified:
Violation 369,370/89-01-01, Failure to Follow Maintenance
Administrative Procedure. Three examples were identified involving
l perfonning work without a work request and improper acceptance of
j' operational control following maintenance. (Paragraphs 5 and 6)
L
! Licensee Identified Violation 369/89-01-02, Missed TS Surveillance on
Snubbers. (Paragraph 6)
[
Licensee Identified Violation 369/89-01-03, Breach of Fire Barriers.
I
(Paragraph 6)
Violation 369/89-01-04, Inadem> ate Chemistry Procedure Leading to
Inadvertent Dilution. (Paragraph 6) ,
l
l
$$41802478903a0
ADocK 05000369
G
PNU
l
Lm . . . .. . . . . . __ _ .
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .
- - _ _ __ __ _. _ . - _ _ _
, .
t
! . l
l 2
I
Violation 369,370/89-01-05, Followup of Improvements in Control Room '
Drawing Control. For reasons described in the report no Notice of i
'
Violation is being issued for.this violation. (Paragraph 10)
Inspector Followup Item 369,370/89-01-06, Written Guidance on Use of !
Procedures. (Paragraph 11)
Violation 369,370/89-01-07, Failure to Follow Procedures With Respect to '
Writing Problem Investigation Reports (PIRs). (Paragraph 12)
1
l
l
(
l
. 1
- - - - - - - - - _ _ _ _ _ _ - - _ _ _ _ _ - _ . _. l
- - - _ - . _ _ - _ _ _ _ _ - _ - - _ _ _ _ - _ _ _ - _ _ - _ _ _ _ _ _ _ - _ - _ _ _ - _ . _ - _ _ - _ -
,. .
.
!
REPORT DETAILS
'1. Persons Contacted-
Licensee Employees
- J.'Boyle, Superintendent of Integratea Scheduling
- G. Gilbert, Acting Superintendent of Technical Services
- T. McConnell, Plant Manager
W. Reeside, Operations-Enginesr
M. Sample, Superintendent ofiiaintenance
- R. Sharp, Compliance Engineer
J. Snyder, Performance Engineer
- B. Travis, Superintendent of Operations
R. White, Instrument and Electrical Engineer
Other licensee employees contacted included construction craftsmen,.
technicians, operators, mechanics, security force members, and office _
personnel.
- Attended exit interview
2. Unresolved Items
An unresolved item (UNR) is a matter about which more information is
required to determine whether it is acceptable or mayl involve a violation
or deviation. There were no unresolved items identified in this report.
'
3. Plant Operations (71707, 71710)
The inspection staff reviewed plant operations during the report period to
verify conformance with applicable regulatory requirements. Control room
logs, shift supervisors' logs, shift turnover records .and equipment
removal and restoration records were routinely reviewed. Interviews were
conducted with plant operations, maintenance, chemistry, health physics,
and performance personnel.
Activities within the control room were monitored during shifts and at
shift ~ changes. Actions and/or activities observed were conducted as
prescribed in applicable station administrative directives. The complement
of licensed personnel on each shift met or exceeded the minimum required
by Technical Specifications.
Plant tours taken during the reporting period included, but were not ;
limited to, the turbine buildings, the auxiliary building, Units 1 and 2 4
electrical equipment rooms, Units 1 and 2 cable spreading rooms, and the i
station yard zone inside the protected area. j
1
During the plant tours, ongoing activities, housekeeping, security, l
equipment status and radiation control practices were observed. j
I
1
,
.__._______ __ _ _ __ _ .. .. J
__
, .
.
l
'
2
!
}
A detailed walkdown of the accessible portions of the Unit 1 auxiliary ;
feedwater (CA) system was conducted by the inspectors. A CA Resistance (
Temperature Detector (RTD) was found disconnected and details are !
contained in paragraph 5. l
l
The inspectors reviewed the licensees progress relative to Generic ;
Letter 88-17, Loss of Decay Heat Removal . The licensee appears to be ;
thoroughly addressing the issue with appropriate detailed procedures
under development. Further detailed inspections will be conducted at
a later date.
a. Unit 1 Operations
Unit 1 operated at approximately 100 percent power for most of the
report period. On February 12, 1989, power was reduced to 90 percent
to repair the number two governor valve position indicator which had
failed. The unit returned to full power approximately twelve hours
later. ,
b. Unit 2 Operations
The unit operated at approximate 100 percent power until January 27,
1989. On January 27, 1989, at 4:30 p.m. the licensee observed
indication of main condenser tube leakage on Unit 2. Turbine
generator load was reduced in accordance with procedures to allow
isolating and repairing the leaks. Load was reduced to approximately
40 percent. Three condenser tubes were found leaking and a total of
fifty two tubes were plugged. The unit returned to full power at
10:05 a.m. January 29, 1989. The licensee believes steam impinging
on the conderser tubes from a leaking turbine steam drain valve may
have caused the tube leakage. The leakage from the drain valve was
not stopped, however, and power was again reduced on February 22,
1989, to approximately 85 percent in order to inspect and plug
additional leaking condenser tubes. The un;t returned to full power
on February 22, 1989. !
1
c. At the licensees request, the inspectors reviewed the licensees
progress relative to Generic Letter 88-17, Loss of Decay Heat
Removal. The licensee appears to be thoroughly addressing the issue
with appropriate detailed procedures under development. Further
detailed inspections will be conducted at a later date.
No violations or deviations were identified.
4. SurveillanceTesting(61726)
Selected surveillance tests were analyzed and/or witnessed by the
inspector to ascertain procedural and performance adequacy and conformance ;
with applicable Technical Specifications. {
Selected tests were witnessed to ascertain that current written approved 1
procedures were available and in use, that test equipment in use was {
f
I
i
1
..
.
. _ _ _ _.
. .
-
J
--
.,
.
k
l
i
, 3 )
l
l
!
calibrated,-that test prerequisites were met, that. system restoration was I
completed and test results were adequate. {
Detailed'below are selected tests which were either reviewed or witnessed:
PROCEDURE- EQUIPMENT / TEST
PT/2/A/4208/10B 2B NS HX Heat Balance f '
PT/1/A/4200/09A ESF Test
PT/1/A/4206/09A NI Check Valve Movement Test
No violations or deviations were identified.
'
5. Maintenance Observations (62703)
a. Routine maintenance activities were reviewed and/or witnessed by the
resident inspection staff to ascertain procedural and performance
adequacy and conformance 'with applicable Technical Specifications.
The selected activities witnessed were examined to ascertain that,
where applicable, current written approved procedures were available
and'in use, that prerequisites were met, that equipment restoration' ,
was completed and maintenance results were adequate, j
Specific maintenance activities observed included:
Activity Work Request No.
.
Control Room Activity Door No. 507 Repair 26740 ADM
Troubleshooting Diesel Generator 137753 OPS
2B Battery Charger
Replacement of Power Range 68487 IAE
Nuclear Instrumentation (N41)
Meter and Potentiometer.
!
Replace CA-57 96430 NSM
l
Repair CA Turbine Trip Mechanism 500488 MNT :l
(ReviewOnly)
b. The . inspectors discussed painting of the auxiliary building relative
to operability of the Auxiliary Building Ventilation System (VA), i
Technical Specification (TS) 4.7.7.b. The TS requires testing after I
painting in zones communicating with the system. By previous !
agr eement with the NRC - painting was defined as 1,000 square feet of ,
painted area and retesting was to be done after painting each 1,000 l
square feet. The primary concern being carbon degradation in the i
'
charcoal absorber. Two years of data has shown negligible effect'on
the carbon, therefore, the inspectors agreed that 5,000 square feet
could be painted and larger amounts dependent on test results. The ,
!
)
~
. .
,
( '
l i
4
l
licensee requested this relief due to an afiort to improve
housekeeping which includes repainting of the auxiliary building.
The results after 5,000 square feet also showed no effect on the l
carbon and, therefore, the licensee will paint larger amounts and
retest as appropriate. At a minimum tests will be taken monthly.
The inspectors agreed with this approach.
c. On February 4,1989, during a walkdown of the auxiliary feedwater
system, the Resistance Temperature Detector upstream of ICA-65 was
found disconnected by the inspectors. The licensee inspected the
other CA RTDs and found the RTD upstream of 1CA-57 also disconnected i
and others were found damaged. These RTDs are installed to monitor !
check valve backleakage from the stecm generators to the CA pumps to l
prevent steam binding of the pumps. The CA RTDs were reinstalled,
however, a work request was not used to reinstall them. The RTDs are
strap on devices that attach perpendicularly to the pipe. The straps
were damaged such that the RTDs had slid under the straps and were
parallel to the pipe and could not be reinstalled properly.
l;
After reinstallation, the RTD upstream of ICA-57 was reading between !
200 degrees and 246 degrees F; the operability limit is 250 !
degrees F. Attempts were made to reseat the valve with out success. !
The licensee then decided to replace the valve while on line.
On February 15, 1989, while checking the job site setup prior to
removal of ICA-57, the inspectors found the RTD upstream of ICA-57
again disconnected. Operations was not aware that the RTD had been
disconnected and no work request had been authorized to remove the
RTD. Work Request 96430NSM indicated that the RTD was removed on ,
February 15, 1989, however the work was not cleared to begin until
February 16, 1989. Operations reconnected the RTD and again no work
request was used.
On February 16, 1989, maintenance personnel recorded on week request i
l
96430NSM that the CA RTD was already removed prior to starting work.
Valve ICA-57 was replaced on February 16 and 17, 1989.
After replacing 1CA-57 and restoring the system to operation,
operations personnel noted that the RTD was still indicating high
piping temperatures. Upon investigation it was discovered that the
RTD had been incorrectly placed on the valve ICA-57 rather than
further upstream. The RTD was moved, apparently without using a work
request. The RTD continued to read high, though improved, and a fan
was left on the piping to cool the line between the check valve i
and the RTD. McGuire Maintenance Management Procedure (MMP) 1.0,
" Definition of the Work Request Form," describes the use of a work
request form to control work. Paritgraph B under the scope section
specifies that corrective maintenance (replacement and/or repair of
defective parts) shall require a work request. On several occasions,
1
- _ _ - .
- - _ - _. . -
,
, a s
.
5
4
as described previously, maintenance was performed in reinstalling
and removing the CA RTDs without an authorized work request. This is
considered a failure to follow administrative procedures and is
identified as a violation of T.S. 6.8.1: 369,370/89-01-01, Failure
to Follow Maintenance Administrative Procedure. {
In reviewing the completed 1CA-57 work request 96430NSM it was noted
that the Operation Control Accepted block was signed by the shift
engineer (shift technical advisor) and not by a member of the
operations department. MMP 1.0 section 2.20 states that the ,
Operation Control Accepted block shall be signed by a responsible
representative of the group that gave clearance to begin work.
Operations gave clearance to begin work and the shift engineer is in
the Integrated Scheduling department. Apparently past practice has
been to allow shift engineers to sign for operators in some
circumstances (primarily for modifications), however, this is not in
accordance with station procedures. The licensee indicated that it '
!
is their intent to have shift engineers sign for clearing
modifications in some cases. This is a second example of failure to i
'
follow administrative procedures, violation 269,370/89-01-01.
d. The inspector accompanied NRC/NRR personnel to review the licensee's
raw water fouling monitoring program. Heat exhanager and other raw
water fouling is a general industry problem and the NRC is gathering
information in order to develop a generic communication to the
industry. The licensee has developed various methods to maintain
heat exchangers included differential pressure (DP) and heat transfer
testing, periodic cleaning and flushing and continuous DP monitoring
of Component Cooling System heat exchangers. Visual and ultrasonic !
testing is also being utilized. These programs have been and will
continue to be monitered by the NRC.
One violation was identified in this area. (Also see paragraph 6).
6. Licensee Event Report (LER) Followup (90712,92700)
The following LERs were reviewed to determine whether reporting
requirements have been met, the cause appears accurate, the corrective
actions appear appropriate, generic applicability has been considered, and
whether the event is related to previous events. Selected LERs were
chosen for more detailed followup in verifying the nature, impact, and
cause of the event as well as corrective actions taken. The following
LERs are considered closed:
(Closed) LER 369/88-23, Required Surveillance was not Performed on Two
Snubbers. These snubbers were omitted since a formal snubber inspection
list was not maintained. The snubbers omitted were subsequently inspected
and found to be operable. The licensee is developing a computerized data s
base program to track all safety related snubber inspection requirements.
This event constitutes a violation of T.S. 3.7.8. This violation meets
the criteria specified in Section V of the NRC Enforcement Policy for not
issuing a Notice of Violation and is not cited. LIV 369/89-01-02, Missed
TS Surveillance on Snubbers.
__-_ _ )
E
h3 2: .:
.
.
6
i
!
(Closed)' LER -369/88-29, Fire Barriers Breached Due to Management
Deficiency and Unknown Reasons. A management deficiency existed because
vendor personnel involved had not received the appropriate training.
Cause of the other breaches could not be determined.. Corrective actions
are being taken to prevent recurrence of this event, however, there_have
been several instances of breached fire barriers in the past several
-years. 1his event constitutes a violation of TS 3.7.11. .This violation
meets the criteria specified in_ Section V of the NRC Enforcement Policy ~
for not issuing a Notice of Violation and is not cited. LIV 369/89-01-03,
Breach of Fire Barriers. The licensee is performing an evaluation of past
fire barrier violations due to the large number of previous breaches. The ,
licensee stated that these occurrences have decreased in number over the
'
past several years.
(Closed) LER 369/88-42, ESF Actuation Occurred Due to Personnel Error.
An operator ' caused the motor driven auxiliary feedwater pump to auto start
while in Mode 3 by resetting the ATWS Mitigation System and Actuation
Circuitry (AMSAC). The operator had received training on_ the recently
installed AMSAC system but reset the circuit when the operator mistakenly
believed that the system was generating a signal to shut a blowdown valve
which the operator was attempting to open. The valve was actually
receiving an isolation signal from a high level in the blowdown tank. The l
inspector reviewed the training package for the AMSAC modification and j
found it to be adequate with the following exception. The training i
package stated that the AMSAC indicating light on the control board was '
lit when the system was bypassed. The indicating light is actually lit
when the system is in the reset mode (not bypassed). The light itself is :
'
not labeled and located between the " Bypass" and " Reset" push buttons. In
spite of the erroneous training operations personnel questioned by' the' i
inspector were aware that the indication was lit when the system was
reset. The nomenclature of the AMSAC system and no label on the ;
indicating light are poor from a human factors perspective. Reseting '
other plant equipment serves to remove a signal restoring control to the
operator but in this case reset caused an actuation signal to be generated
in the plant conditions that existed at the time. The licensee is
considering' relabeling the control switch and light.
.
(Closed) LER 370/88-06, ESF Actuation Due to Personnel Error and
Procedure Deficiency. Violation 369,370/88-20-01 was issued with this
event as one example. Corrective actions will be tracked in followup to
the violation.
(Closed) LER 370/88-13, Water Level ESF Actuation Instrumentation for a
Main Feedwater Isolation Valve Inoperable for Indeterminate Period of
Time. Although an ESF instrument was inoperable for an extended period of
time an NRC Notice of Violation is not considered appropriate since the
problem was discovered by licensee self initiated corrective actions and
previous escalated enforcement was issued for problems with the same root
cause (open sliding links and failure of the test program to discover the
deficiency), see NRC Report No. 369,370/88-29.
.- -
,
- __ - ___ _-- - - - _ - _ _ _ _ . _ _ __. _ _ -
VL ;,. ,
- l
-
.
7
'
(Closed)-LER 369/89-01, Failure to Take Compensatory Measures When.Both-
Trains of Control Room Area Ventilation Were Inoperable. This event was
identified as a violation in paragraph 7 and corrective actions will be
evaluated in. followup to the violation. ->
The following LERs are also considered closed: -i
'
I
L LER 369/88-35 LER 369/88-43 !
LER 369/88-41' LER 369/88-46 l
LER.369/88-44,'Rev.1 LER 369/88-47 !
Two licensee identified violations were identified as described above.
7. Follow-up on Previous Inspect' ion Findings (92701,92702)
The following previously identified items were reviewed to ascertain that
^
the licensee's responses, where applicable, and licensee actions were.in
compliance with regulatory requirements and corrective. actions have been l
completed. Selective verification included record review, observations,
'
and discussions with licensee personnel, i
(Closed) Inspector Followup Item 370/87-41-02, Both Trains of Control
Room Ventilation and Chilled Water Fail Control Room Pressurization Test.
The event was reviewed and corrective actions have been taken. A program l
for checking control room door seals has been established.
(Closed) Violation 369/88-09-03, Inoperable Nuclear Service Water Train
Due to Inadequate ' Post Maintenance Test. Planners have reviewed this
event to prevent recurrence. Failure to perform post maintenance tests I
has occurred since this event. A racent example is documented in Report
369,370/88-33, where CA-44 was not retested to set the travel stops after
maintenance.
(Closed). Violation 370/88-14-02, Failure to Follow Procedure and Failure
to Use a Procedure to Perform Safety Related Work. The licensee
attributed 'this event to personnel error on the part of the individual
performing the work. The individual was counseled and station management
has been stressing procedural compliance. This general area continues to
be evaluated by the inspectors.
(Closed) Violation 370/88-20-01 Failure to Follow Procedures / Inadequate l
Procedures With Three Examples. The licensees corrective actions for i
'
these three examples have been verified complete by the inspectors. The
second example involved a loss of offsite power due to improper
implementation of a general procedure OP/2/A/6350/05, "AC Electrical
Operation Other Than Normal Lineup." The licensee decided not to change
the procedure since the number of possible variations of alignment would
make a change to a more detailed procedure impractical. The licensee has
chosen to control this type of evolution through the use of the Removal
and Restoration (R&R) process. The inspectors will continue to observe
licensee performance in the use of R&Rs.
l
___-- _ _ _ _ _ i
_ _ _ _ _
.
- .
'
.
l
'
8
(Closed) Inspector Followup Item 369,370/88-04-01, Long Term Corrective
Action Associated With Nuclear Service Water Expansion Joint Liner. The
liner and bellows were replaced using a stainless steel flanged joint
rather than a welded joint via a Nuclear Station Modification (NSM). The
NSM was installed on Unit i during the last outage and will be installed
on Unit 2 during the next refueling outage.
(Closed) Temporary Instruction 369,370/T2515/77, Survey Of Licensee's
Response to Selected Safety Issues. The completion of this instruction
was due in 1986. Formal documentation in an inspection report indicating
the instruction was completed could not be founu. The inspector verified
that the information requested by this instruction had been transmitted to
the proper NRC group in 1986 indicating that the instruction had been
completed.
(Closed) Inspector Followup Item 370/87-36-04, Review Electrical Breaker
Coordination Resulting in 9/6/87 Trip. This event involved a ground on an
instrument air (VI) compressor motor which tripped both the motor breaker .
and the motor control center (MCC) feeder breaker. The McGuire NRC !
Diagnostic Evaluation Team (DET) report paragraph 3.5.6.2, also discussed
this event and concluded that no NRC followup was considered necessary. A ,
'
breaker coordination problem did, however, exist and the licensees Design
division has an on-going review underway of breaker coordination as a part
of an analytical model review. The essential power supply portion of the ,
review has been completed and the non-essential power supply is currently !
under review. This review includes normal and standby power supplies 4
under normal and faulted conditions. The DET was also concerned that the j
'
responsible design personnel were unaware at the time of any concern with
breaker coordination problems at McGuire due to a communication concern. I
Since the DET inspection, Design representatives have been stationed at
the site and Design has been reorganized such that the design personnel
involved deal only with McGuire. The inspector discussed the
communications concern with the General Office Design person involved who l
stated that information input and communication from the site are not a ;
Design personnel also indicated that breaker
'
problem at this time.
coordination is not assured in all cases since many of the breakers at
McGuire have instantaneous and long time current trips and no short time
trip. In some cases a ground may cause breaker coordination problems due
to high instantaneous current trips. Design indicated that breakers are
being replaced when needed with those having short time over current trips
to provide breaker coordination.
(Closed) Violation 369/88-09-02, Inoperable Component Cooling Train Due
To Inoperable Nuclear Service Water (RN) Valve. The licensee postulated,
that the travel stops on RN valve IRN-1908, service water flow control
"alve to the component cooling heat exchanger, had come loose and vibrated
out of position. Signs were placed on these valves warning against moving
the travel stops and locking the stops securely after any authorized
positioning. Corrective actions in the licensees response also included
placing Loctite thread sealant on th travel stops for 1RN-190B and
evaluating the need to put Loctite on all four of these valves. After
'
s __ m
. _ - - _ _- _
4 .. ;
'
l
.
.
'
l 9
!
Loctite was initially p _d on 1RN-190B the licensee subsequently decided i
to discontinue use of Loctite in this application. Currently none of the ;
The licensee stated that the
'
valves have Loctite on the travel stops.
travel stops have not been found out of position since this event 'i
occurred. In addition, these valves are scheduled to be replaced with
more reliable valves in the early 1990's. All signs have been verified in
place and tightness of the selected travel stops has been verified by the
inspector.
(Closed) Unresolved Item 369,370/88-33-03: Review of Control Room Door
Seal Maintenance Affecting Operability of Control Room Ventilation. On !
January 17, 1989 Mechanical Maintenance personnel replaced the seals on a ,
control room door rendering Control Room Ventilation (VC) system l
inoperable for approximately 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br />. Instructions on the work request
(WR) stated " Repair or adjust door closure after door seal is replaced". j
Another WR was supposed to be implemented first which would have ;
implemented adequate controls to maintain VC operable. Although the
statement on the WR could be misleading it did not clearly authorize seal
work to be accomplished. Maintenance Management Procedure (MMP) Scopa ,
Section Bl.0 requires a WR for maintenance activities. Responsibility l
Section Bl.11 requires a description of requested work. This incident is
considered a violation of both sections of MMP 1.0 in that unauthorized
work was accomplished and the description of work was unclear. This is
another example of violation 369,370/89-01-01, Failure to Follow
Maintenance Administrative Procedures.
!
(Closed) Unresolved Item 369/88-33-07: Followup of Dilution Event. On ;
January 10, 1989 a cation bed demineralized was placed in service which !
led to an unplanned dilution of the reactor coolant system. Operators l
'
acted in a timely manner to isolate the demineralized and boron concen-
tration was returned to normal. Excore detectors rose approximately "
.
1.2% and the highest indication of excore power was 100.49%. While this
event was not a significant transient, it is important that procedures i
adequately control reactivity without unplanned changes. McGuire
Procedure OP/1/A/6200/01, Chemical and Volume Control System, contains !
instructions for placing the cation bed demineralized in service. This
procedure specifies boron saturating mixed bed demineralizers prior to ,
placing in service to ensure no change in reactivity, however, the
procedure does not require boron saturating the cation bed demineralized
rior to placing in service. The chemistry procedure in this case
p(CP/0/B/8400/14) allowed filling of the demineralized with unborated water
leading to the event. Therefore, this is a violation of Technical
Specification 6.8.1 which requires that adequate written procedures be
maintained for plant systems. This is violation 369/89-01-04: Inadequate
Chemistry Procedure Leading to Inadvertent Dilution.
(0 pen) Bulletin 85-03: As requested by Action Item e. of Bulletin 85-03,
" Motor-Operated Valve Common Mode Failures During Plant Transients Due to
Improper Switch Settings", the licensee identified the required
safety-related valves, the valves' maximum differential pressures and a
prograni to assure valve operability in their letters dated May 16, 1986,
November 20, 1986, and February 18, 1987. Review of these responses
indicated the need for additional information which was requested in NRC
Region II letter dated March 31, 1988.
____ ___ __ _________ __ . _ _ _ _ _ _ J
_ - _ _ _
_._' .
.
4
10
Review of the licensee's May 2, 1988, response to the request for 4
additional information indicates that the licensee's selection of the
applicable safety-related valves to be addressed and the valve's maximum i
differential pressures meets the requirements of the bulletin and that the l
program to assure valve operability requested by Action Item e. of the
bulletin is now acceptable, with the exception of providing justification ;
in cases where testing with maximum differential pressure cannct ,
practicably be performed. Prior to final acceptance, differential i
pressure testing will be examined more closely by a regional inspector.
The results of the inspections to verify proper implementation of this
program and the ' review of the final response required by Action Item f. of
the bulletin will be addressed in additional inspection reports.
Two violations were identified as described above. '
8. Review of Licensed Operators Medical Records (71707)
10 CFR Part 55 requires that applicants for an operator's license be
certified as medically fit. Documentation of medical examinations is
required to be maintained and made available for review by the NRC. A
random review of medical examination documentation was conducted from
currently licensed reactor operators.
No violations or deviations were identified.
9. Escalated Enforcement Issues
On January 19, 1989, two severity level III violations were issued
concerning the operability of the hydrogen. skimmer (VX) system and ,
inadequate post modification testing. Reports 369,370/88-24 and 88-29
identified numerous concerns in these areas which ultimately resulted in
the two severity level III violations. In order to correctly document the
final disposition of these items, previously opened items 88-24-01,
88-24-02, 88-24-03, and 88-24-04 are being combined into one item {
369,370/88-24-03,VX Operability Violation. Also, 88-29-01, 88-29-02 and j
88-29-03 are being combined into one item 369,370/88-29-01, Inadequate '
Post Modification / Maintenance Testing. These two items will remain open ,
pending review of completed corrective actions for the violations. l
10. Drawing System Verification (37701, 39702)
The inspector conducted a special inspection of the drawing control
program and reviewed critical control room and technical support center )
drawings to verify the drawings were adequately controlled, legible and j
usable by the operations staff for decision making during an emergency. l
Licensee Station Directive (SD) 2.1.1 describes the licensee's process for l
drawing control. SD 4.4.1 and 4.4.2 describe the program for modifica-
tions including incorporation of modifications into drawings. Operations ;
Management Procedure (OMP) 1-11 provides guidance to operations staff in l
)
!
!
1
!
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
j
_ _ _ _ _ _ _ _ _ _ _ - _
'
. . !
l
.
.
11 ;
maintaining critical drawings up to date relative to modifications. The
licensee indicated that OMP 1-11 was being reviewed to add more detailed .
control for updating drawings relative to modifications. The licensee ;
'
presently red marks critical drawings for significant plant modifications
to assure current information is available while waiting on an official
drawing change which typically takes several months. Addition of a valve
would be a significant change and addition of a note would typically not
be considered significant. Temporary modifications are not presently red
marked. A note is placed on the drawing and the package is filed in the
control room for reference. While these modifications are usuall- cimple
in nature, the licensee is evaluating the need for red marking 'Se ,
licensee also intends to provide more guidance for complicated red marking
and partially implemented modifications. The inspectors review showed ;
that drawings were being red marked with appropriate reference to the j
modification and a file was maintained of modification packages #or l
further reference. Drawing stamps and red marking are supposed t be
initialed by the clerk and a second person who is SR0 licensed.
Some discrepancies were identified. An out of date drawing revision was
noted. In addition, some markings were not properly initialed, two added
drain valves were not red marked, some areas of electrical drawings were
illegible and the modification file was in disarray. The inspector
discussed these problems with the licensee. The licensee immediately
initiated a complete audit of critical drawings and found additional
similar discrepancies. The licensee initiated corrective actions. Out of
date drawings and illegible areas were determined to be insignificant to
operations. A number of discrepancies were found on control room drawings i
but were not critical. These drawings are being evaluated for retention.
Some drawings were found with unnecessary stamps or references to
temporary modifications. The fi'le was reorganized and a training package
was developed for shift clerks. Stamps and red marks have been validated
and out of date drawings have been replaced. Additional reviews by an NRC
team inspection (see Report 369,370/89-02) identified one out-of-date ;
drawing since the licensee audit, identified several situations where the j
control rrom had later drawings than the Master File and also discovered l
that confusion may exist with operators as to whether the drawings are
usable without using the NSM's on file. The licensee indicated that a
Design Engineering master list was available, that operator training would ]
be conducted and that Operations, Projects (lead group for modifications) l
and Document Control personnel would be working together to verify I
drawings which were affected by the modification process are up-to-date in
all station groups. The Master file problems were apparently filing
i errors only. The licensee also indicated that Document Control personnel
had recently deleted distribution / accountability sheets and master file
i audits for drawings. Individual groups were tasked with auditing. The l
'
licensee committed to evaluate the need for reinstating these processes or l
l improving existing processes as necessary based on additional problems !
'
found.
l
l
_ _ _ - _ _ _
l
LJ. .
.
'
!. 12
l The licensee relies on -internal audits of individual groups and random
audits / surveillance by quality assurance (QA) personnel. One QA
surveillance of modifications was conducted in late 1988 with no problems
. identified and one audit was conducted in 1987 with one minor finding.
Past operations audits have apparently not been sufficiently broad based.
The licensee was requested to consider an improved audit process. A ,
detailed walkdown of the Unit 1 Auxiliary Feedwater System against
as-built drawings was also conducted (see paragraphs 3 and 5).
The above discrepancies appear to have minor technical significance and
the licensee initiated appropriate corrective action before the inspection
period ended. This violation meets the criteria specified in Section V of
the NRC Enforcement Policy for not issuing a Notice of Violation and is
not cited. However, further followup wiil be conducted of licensee
corrective actions. This is Violation 369,370/89-01-05: Followup of
Improvements in Control Room Drawing Control.
One violation was identified as described above which is not being cited.
11. Review Of Plant Procedures (42700)
!
Due to an ongoing concern with failure to follow procedures the
inspector reviewed procedures which define how specific procedures are to
be implemented. Procedures reviewed included " Operations Management
Procedure" (OMP) 1-2, "Use of Procedures"; OMP 2-17, "Tagout/ Removal and
Restoration (R&R) Procedure" and Station Directive 4.2.1, " Handling of
Station Procedures". The following comments are provided:
a. The first statement in the OMP 1-2 section titled " General Statements
of Philosophy" is that " Procedures do not cover all situations".
While this is a true statement it appears inappropriate that this
statement is listed first under philosophy. If procedure compliance
is to be strongly emphasized, and may imply to some that procedures
do not need to be followed. The OMP 1-2 later states that operators
are required to take appropriate action to place the plant in a safe
condition, independent of procedures. This is also an appropriate
statement, however, the OMP should emphasize the use of procedures
for most situations and processing changes when the time taken to
process the change will not impact plant or personnel safety. In
summary, the OMP should reflect the strict procedural compliance, an
attitude that the licensee ihas verbally indicated it intends to
enforce,
b. OMP 1-2, Section 7.1.E under philosophy, states " Prior to using any
procedure the initial conditions...must be verified. If these are
not met, the procedure cannot be used without supervisory review and
approval". This section does not state that a procedure change must
be processed and, therefore, is unclear as to whether a change is ,
needed. A procedure change should be made if initial conditions
cannot be met.
,_ _ ._
1 1.
, .
.
l
.
13
c. OMP 1-2, Section 7.2.E.1 allows signing a valve checklist even if the
valve is mispositioned as long as a Removal and Restoration (R&R)
exists. It seems to be more appropriate to sign the checklist noting
that the valve mis-position is acceptable per R&R,
d. OMP 1-2, Section 7.2.F states " Performance valve checklist may be
performed by Operations to allow performance testing of certain
systems. When the testing is complete, the checklist requires the
valves to be returned to a " normal" position. This " normal" position
may not correspond to the actual valve position required by the
approved (0P) Operations Procedures currently in use. In such cases,
the Performance valve checklist " normal" position should be signed
off as being correctly positioned."
There has been difficulty in the past with conflict between the final j
position of valves in a performance test procedure and the position
desired by Operations (per the OP in use or an R&R). Performance
test procedures use various methods in an attempt to overcome this
problem including recording the as found position in the PT and
specifying returning the valve to the as found condition; specifying
returning the valve to the position desired by operations; and .
specifying final positions but allowing deviation from the final l
position if an R & R is outstanding on the valve. However, the OMP
paragraph allows signing for a valve which is out of position. Other
alternatives exist that would not give the appearance of the ,
'
performance procedure.
e. OMP 1-2 Section 10.1.A states that "No deviation from the original
intent of the procedure shall be allowed without an approved
procedure change". The original intent is not defined and this
statement allows the procedure user to interpret original intent
without reviews. Original intent needs to be clearly defined and
narrowly interpreted by procedure users. TS 6.8.3. in part states j
that temporary changes to procedures may be made if the intent of the
original procedure is not altered. Intent in the TS is not defined,
however, the TS requires approval of a temporary change by two
members of the plant management staff, at least one of whom must
holds a senior operator license and review / approval by the plant
manager or a superintendent within 14 days. The intent determination
made by the procedure user per 0MP 1-2 does not receive the reviews
required by the TS.
f. OMP 1-2 outlines the use of procedures for Operations Department
personnel but not for other station personnel. Only minimal guidance
is provided for other personnel via Station Directive (SD) 4.2.1,
" Handling of Station Procedures". Section 1.0 states that the
objective of Station Directive 4.2.1 is to insure adequate prepara-
tion, review and approval for all station procedures, changes and
completed procedures. Ensuring proper use of procedures is not
listed as an objective of SD 4.2.1. Section 4.0.9 of SD 4.2.1 is
titled "Use of Procedures" but the guidelines are very limited. The
licensee committed to revise SD 4.2.1 to be more specific in the
. - - - - - - - -
.
,, # . q
,
x q
.
'
14
'
requirements for use of procedures in response to violation
369/87-41-04 _ The revision of SD 4.2.1 dated' December 18, 1987 was
incomplete in that the only change in~this area was to state'"Where
an approved Station Procedure exists that covers station activities, J
those station activities shall always be conducted in accordance with I
, the provisions of the approved procedures." The revision to SD 4.2.1
was intended to reflect the management policy clarification on the .
use of procedures as stated in the plant managers memorandum dated l
10/27/87. This memorandum stated: =i
(a) "If a station activity is important enough to have a procedure l
written to perform the activity, then the procedure will always
be used, in its entirety... Steps may not be deleted, skipped or
altered without a procedure change being made unless specifi-
cally allowed by the procedure. To perform the activity without
the procedure IS NOT OPTIONAL."
(b) "Do not deviate from the scope of the , procedure unless the
activity is covered by another procedure or administrative
control, such as a troubleshooting procedure. Again, if the
activity .'s important enough to be performed under procedural
control, DO NOT PERFORM ACTIVITIES THAT G0 BEYOND THE PROCEDURE l
without also using a procedure or other administrative
controls".
The actual change to SD 4.2.1 did not state that steps may not be
deleted, skipped, or altered without a procedure change unless
specifically allowed by the procedure. Part 8 of the memorandum .i
likewise was not included in the station directive. Realistically J
there are situations in which procedures cannot be followed or where
alternate rethods are acceptable. Clear guidance needs to be ;
'
provided for these situations to maintain a proper attitude for
following procedures and to assure correction of procedural problems.
In summary, SD 4.2.1 appears weak in the area of providing guidance
on use of procedures.
g. "Tagout/ Removal and Restoration (R&R) Procedure", OMP 2-17 provides
guidance for removal and resto"ation of equipment. However, very
little guidance is provided relative to when an R&R can be used in
lieu of a procedure. The licensee is developing this guidance based
on an NRC violation (369,370/88-31-01).
h. The licetsee hat independently recognized the need to improve
guidance for use of Abnormal and Emergency procedures and is
developing this guidance.
Due to the history of weak procedural compliance and adequacy at
McGuire, management has increned emphasis on following procedures
and correcting inadequacies in procedures. However, the Station
Directive and Operations Management Procedures governing use of
procedures continue to be weak in providing adequate guidance 'to
plant personnel. Again, it is noted that the OMP applies only to
Operations Personnel and the Station Directive applies to all Station
. _ _ _ - _ _ _ _
o-
f a r a.,
b.
4
.a 4
<m
. ,
-15 l
1
1
Personnel-b'ut the SD gives very l'ittle' guidance on use of procedures.: .
The- current written guidance for use of procedures is. considered a i
weakness and ~ an Inspector Followup Item IFI- 369,370/89-01-06, l
Written Guidance on Use of Procedures, is being opened to followup in. j
y this area. ;
No violations or deviations were' identified.
'12. Review of Problem Investigation Process .(71707) ,
The inspectors reviewed various problems and' events to determine if the' j
stations corrective action program was being properly implemented relative l
to these situations. Problem Investigation Reports (PIRs) were also. l
reviewed .to determine adequacy of program implementation. The primary ,
program the licensee uses .for identifying, documenting and correcting j
problems is the PIR program implemented by Station Directive 2.8.1, ;
" Problem Investigation Process". This procedure requires in paragraph
5.1.1 that " Problems identified that meet the criteria in Attachment 1 j '
shall be documented as soon as practical..." Attachment 1 defines the.
criteria for writing a PIR as follows:
1. Unplanned,. unexpected, unenalyzed events, or conditions involving 1 '
important functions.
2. Degradation, damage, failure, malfunction or 1oss of plant equipment
performing important functions.
3. Deviation from or deficiencies involving code, specifications
(includes Tech Specs) requirements, or administrative controls
involving important functions. o
1
Two apparent failures- of the licensee to document problems in accordance
with the above criteria were discovered by the inspectors. The licensee
experienced a loss of Residual Heat Removal on December 1,1988 on Unit 1
in part due to a confusing drawing which had not been properly updated
(see NRC Re 369,370/88-33). A problem was identified by the
inspectors (portsee paragraph 5) involving . damaged Auxiliary Feedwater (CA)
System temperature detectors. Neither of these issues were documented on
a PIR. In addition, two other situations were documented on a PIR
approximately two weeks after the events and after NRC prompting. One ;
situation involved-a leaking CA check valve which was documented on PIR l
1-M89-0046. Leakage of this valve can affect CA operability. Another ,
issue involved missing fuses causing a Diesel Generator breaker to not 1
function. Local - function (not emergency start) only was affected, i
'
however, this was a repeat problem which could indicate a program weakness
or personnel problem. This situation was documented after prompting on ;
_______ _ _ _ _ - - _ _ - _ _ _ _ _ _ _ _ _ - _ _ _ _ - _ - _ - _ _ _ - _ - . _ - - - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ __ . _ _ - _ _ _ _ _ _ _ _ _ _ .
,
- .
..
d
.
16
PIR 1-M89-0050. While the inspector cannot show that the PIRs would not
have been issued, these issues appear to indicate weaknesses in aggressive
program implementation. Another situation involved corrective maintenance 1
on the Unit 1 CA turbine driven pump. This work was documented on Work l
Request (WR) 500488 MNT. The WR indicated that the overspeed trip
mechanism was found inoperable indicating a possible past operability
issue or maintenance problem. Upon questioning of two individuals by the l
inspector each indicated that he thought the other was going to issue a
l
PIR. The licensee eventually decided to document the problem on an
existing PIR which had been written previously identifying that the
mechanism was not being periodically tested. This problem may not have
been fully addressed without NRC prompting.
The inspector reviewed PIR 0-M88-0022. This PIR documented problems with
instrument air lines and prompted filter inspections and review for
adequate sizing. Part of the corrective action was to evaluate the need
for a preventive maintenance (PM) program. Given the problems experienced
at McGuire and generally well known industry problems this corrective
action appeared weak and would have allowed no program to be implemented
based on one individuals decision. In addition, Quality Assurance
personnel signed off the PIR indicating a PM program had been implemented.
The air system is designed fail safe and is non-safety-related but this
issue may also indicate weaknesses in program implementation. The first
two examples are considered a Violation 369,370/89-01-07: Failure To
Follow Procedure With Respect To Writing Problem Investigation Reports.
Since this violation is indicative of program implementation weaknesses,
both units are included. A review of licensee statistics did show the
number of PIR's issued had increased through 1988 indicating an improving
documentation trend. The licensee is trending numbers of PIR's on a
monthly basis as a management tool.
One violation was identified.
13. Exit Interview (30703)
The inspection findings identified below were summarized on February 27,
1989, with those persons indicated in paragraph 1 above. The following
items were discussed in detail:
(0 pen) Violation 369,370/89-01-01, Failure to Follow Maintenance
Administrative Procedure. Three examples were identified involving
performing work without a work request and improper acceptance of
operational control following maintenance. (Paragraphs 5 and 6)
(Closed) Licensee Identified Violation 369/89-01-02, Missed TS
Surveillance on Snubbers. (Paragraph 6)
(Closed) Licensee Identified Violation 369/89-01-03, Breach of Fire
Barriers. (Paragraph 6)
_ _ _ _ _ _ _ _ _ _ ,
4 0-e
.
.
.
17
(0 pen) Violation 369/89-01-04, Inadequate Chemistry Procedure Leading to
. Inadvertent Dilution. (Paragraph 7)
(0 pen) Violation- 369,370/89-01-05, Followup of Improvements in Control
Room Drawing Control. For reasons described in the report no Notice of i
Violation is being issued for this violation. (Paragraph 10)
(0 pen) Inspector Followup Item 369,370/89-01-06, Weakness in Written
Guidance on Use of Procedures. (Paragraph 11)
(0 pen) Violation 369,370/89-01-07, Failure to follow Proceduces With
Respect to Writing Problem Investigation Reports (PIRs). (Paragraph 12)
The licensee representatives present offered no dissenting comments, nor
did they identify as proprietary any of the information reviewed by the ;
inspectors during the course of their inspection. l
,
!
,
I
i
l
l;
i
l
L____ ---__ _ - . I