IR 05000413/1985051
| ML20137L366 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 01/09/1986 |
| From: | Conlon T, Gibbons T, Mcelhinney T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML20137L360 | List: |
| References | |
| 50-413-85-51, 50-414-85-59, NUDOCS 8601270423 | |
| Download: ML20137L366 (8) | |
Text
_-.
.. - _
._
.-. ----
p Eteg UNITED STATES
/p
,
'o NUCLEAR REGULATORY COMMISSION
['
REGION 11 n
- r j
101 MARIETTA STREET,N.W.
- t ATLANTA, GEORGI A 30323
\\... /
.
Report Nos.: 50-413/85-51 and 50-414/85-59 Licensee: Duke Power Company 422 South Church Street Charlotte, NC 28242 Docket Nos.: 50-413 and 50-414 License Nos.:
NPF-35 and CPPR-117 Facility Name:
Catawba 1 and 2 Inspection Conducted: November 18-22, 1985 Inspectors:
fhw->
//Nf'6
,
t T. D. Gibbons Date Signed ti>bymna th
'[l mnteki
/ /ll 5'l T. F. McElhinney
~~
(/
Date Signed Approved by M
'</f.
/ - 9 - 6h T. E. Conlon, Section Chief Date Signed Engineering Branch Division of Reactor Safety SUMMARY Scope:
This routine, unannounced inspection involved 72 inspector-hours on site in the areas of instrumentation work and records review, electrical terminations and records, and emergency diesel generator maintenance and testing.
Results:
No violations or deviations were identified.
I sea'2;ogg;tggogg3 G
.
.
.
REPORT DETAILS 1.
Persons Contacted Licensee Employees
.
R. McElwee, Mechanical Maintenance
- E. G. Williams, Project QA Technician J. Leathers, Operations Engineer
- B. F. Caldwell, Superintendent Station Services
- J. W. Cox, Technical Service Superintendent J. D. Hampton, Manager, Nuclear Station T. R. Gill, Technical Support Supervisor NRC Resident Inspectors
- P. VanDoorn, Senior Resident Inspector - Construction
- P. Skinner, Senior Resident Inspector - Operations
- Attended exit interview 2.
Exit Interview The inspection scope and findings were summarized on November 22, 1985, with those persons indicated in paragraph I above.
The inspector described the areas inspected and discussed in detail the inspection findings.
No dissenting comments were received from the licensee.
Inspector Followup Item (IFI) 413/85-51-01, 414/85-59-01, Daily Check
-
of the Emergency Diesel Generator Governor Oil Level, paragraph 5.a.
IFI 413/85-51-02, 414/85-59-02, Resolve Question of When a Valid
-
Governor Oil Level Can Be Obtained for the Emergency Diesel Generators, paragraph 5.a.
The licensee did not identify as proprietary any of the materials provided to or reviewed by the inspectors during this inspection.
3.
Licensee Action on Previous Enforcement Matters (Closed) Violation 419/85-28-02, Failure to Follow Construction Procedure 438 " Instrument Protection" The licensee has responded to this violation by letter dated September 9, 1985.
The response has been reviewed and found to be acceptable.
The licensee has revised Construction Procedure (CP) 368 Instrument Control to include the requirements of CP 438 and to provide assurance the records are properly completed and maintained.
Procedure CP 438 has been deleted because its requirements are now in CP 368.
The licensee has conducted an i
i
_ - -.
_ - _ _ _ - -
-
.-
._
-.
--
.
,
l inspection of all instruments not currently protected to ascertain if l
addition protection is required.
The work was done on Not. conforming Item
'
Report 19860.
4.
Unresolved Items Unresolved items were not identified during the inspection.
5.
Independent Inspection
a.
Emergency Diesel Generator Maintenance Procedure Review
,
I The inspector reviewed the diesel engine maintenance procedures listed i
below to verify that they were consistent with vendor recommendations specified in the Transamerica Delaval and Woodward Governor Manuals.
The following procedures were reviewed:
MP/0/A/7400/02, Diesel Governor Oil Cooler and Booster Servomotor Corrective Maintenance
MP/0/A/7400/13, Diesel Engine Break-In and Alignment with New Piston Rings Installed
MP/0/A/7400/14, Diesel Generator Governor, Governor 011 Cooler, and Booster Servomotor Removal and Replacement MP/0/A/7400/19, Diesel Generator Governor Coupling Drive Element Replacement l
MP/0/A/1000/03, Diesel Engine Main Bearing Disassembly for Special Inspection l
MP/0/A/1000/16, Diesel Engine Governor and Overspeed Trip Accessory Drive - Disassembly, Inspection, and Reassembly
'
During the review of the procedures, the inspector identified two items.
The first item involves the checking of the diesel generator
,
l governor oil level during the daily rounds on the diesel generator l
rooms.
The Transamerica Delaval Manual recommends that the operator check the governor oil level daily, independent of engine running hours.
The inspector questioned responsible licensee personnel if the governor oil level was being checked during the daily rounds.
The licensee informed the inspector that this was not being performed at this time.
The inspector informed the licensee that followup on this item will be done on future inspections. This item will be tracked as IFI 413/85-51-01, 414/85-59-01, Daily Check of the Emergency Diesel Generator Governor Oil Leve.
The second item identified during the review involves the check of the governor oil level while the engine is running.
According to Diesel Generator Operating procedure, the governor oil level is checked before and after engine operation to verify that the oil level is at or above the line on the sight glass.
The inspector questioned responsible licensee personnel if the governor oil level will change when the engine is started.
The licensee informed the inspector that, based on past experiences with these engines, the governor oil level will drop up to 1/4" in the sight glass. The inspector questioned as to whether a valid governor oil level can be obtained without the engine running.
The inspector informed the licensee that followup on this item will be tracked as IFI 413/85-51-02, 414/85-59-02, Resolve Question of When a Valid Governor Oil Level Can Be Obtained for the Emergency Diesel Generators.
b.
Diesel Engine Break-In and Alignment with New Piston Rings Installed The inspector witnessed portions of this test to verify that:
Appropriate revisions of the procedures were available and in use by the operations and maintenance personnel.
Personnel involved in the maintenance operation were knowledgeable of their responsibilities.
- The maintenance procedure was performed in accordance with requirements.
Problems encountered during the break-in run were properly identified.
No violations or deviations were identified in the areas inspected, c.
(0 pen) IFI 414/85-42-01, Resolution of low oil level problem in the Diesel Generator 2A Governor.
The inspector questioned responsible licensee personnel concerning the current status of this item.
The licensee stated that upon completion of 35 consecutive start and load tests for DG-2A, the governor was removed and the internal seal was inspected. Although the seal did not appear to be excessively worn, the licensee replaced that seal with a new one and reinstalled the governor.
The governor was refilled with oil and does not appear to be leaking at this time.
Pending the running of the 2A diesel engine to verify that the governor does not leak while operating, this item remains ope _ _ - _.
_ -
.
-.. - _
_..
_
_ _ _ _ _ _ -
-
.
.-
_.
-
.
'
l-
,
6.
Licensee Identified Items 10 CFR 50.55(e)/Part 21 I
a.
(Closed) CDR 84-18, Emergency Diesel Generator Piston Skirt Replace-ment.
The licensee submitted a final report on September 27, 1984.
!
The report has been reviewed and determined to be acceptable.
This
deficiency involves the replacement of the AN type piston skirts with
!
the AE type piston skirts for the 2A and 2B Emergency Diesel Generator Engines.
The licensee identified cracks in four of the 16 AN type
!
<
piston skirts for the 1A diesel engine, which has the same design as
,
j the 2A and 28 engines.
The licensee determined that this situation was
'
i potentially generic and as a result, decided to replace all of the AN type piston skirts with the AE type piston skirts. The inspector held
i discussions with responsible licensee representatives and reviewed
'
supporting documentation to verify that the corrective actions identified in the report have been completed. The following documents
,
were reviewed:
Work Requests 1583 MNT and 2171 MNT l
Procedure MP/0/A/1000/38 (B)
NDE Inspection Records Material Hardness Test Reports Review of the records indicated that the AN type piston skirts had been replaced with the AE type piston skirts. This item is closed.
i b.
(Closed) CDR 84-19, Cracked Subcover Assemblies on the Emergency Diesel Generator Engine.
The licensee submitted a final report on September 27, 1984.
The report has been reviewed and determined to be acceptable. The licensee previously identified and corrected this item for the 1A diesel engine.
The licensee then performed inspections for the Unit 2 diesel engine subcovers.
The 2B diesel engine was found to have a crack on the subcover assembly for cylinder number four right (4R).
The licensee determined that due to the location, the crack would not affect the operability of the Diesel Engine.
The licensee decided to replace the 4R subcover assembly.
The inspector held discussions with responsible licensee personnel and reviewed supporting documentation to verify that the corrective actions identified in the report have been completed. The following documents were reviewed:
Work Requests 1584 MNT and 2170 MNT
NDE Inspection Records Procedures MP/0/A/1000/35 B, MP/0/A/1000/37 A, MP/0/A/1000/37 B f
Examination of the records indicated that all the subcovers were i
inspected and that the 4R subcover was replaced. This item is closed.
!
)
.
.
.
__
.
..
.
..
_ _
_
_ -
_
__ __
_
.
.
i I
7.
Instrumentation Components and Systems Work Observation (51053)
The inspector selected a portion of the pressure operated relief valves (PORV) modification for examination.
This modification entails installation of larger Valcor solenoid valves (3/4 inch) on the PORVs.
The onsite work was initiated by Shutdown Request P01622 and drawing CN-2499-01.11, Revision 50.
Variation Notice (VN;) 50141 was issued to correct drawing i
CN-24995V, Revision 8 by adding identification numbers of devices and adding
the identification to the other involved drawings.
VN 50161 was issued to detail specific locations for the devices relocated during the installation.
The mounting bracket for the solenoid was modified to allow for the larger holes required by the new solenoids.
The inspector examined the installa-tion of solenoid valves 2SVSV0012, 2SVSV0013, 2SVSV0014, 2SVSV0015, 2SVSV0016, 2SVSV0017, which are installed on PORV 25VCV0010-SGD and
.
25VSV0192, 25VSV0193, 25VSV0194, 25VSV0195, 25VSV0196, and 25VSV0197 on
'
PORV 25VCV0190-SGA.
The solenoids are used to control the PORVs auto-matica11y and/or manually from the control room.
The system was not fully installed because several components were not available.
The inspector verified that the proper drawings were used for the installation, the specified valves were installed, and the supports were installed pending approval of an as-built drawing.
The installation was accomplished by qualified craf t personnel.
The required inspection had not been performed since the work was in process but the installation is accessible for inspection.
The installation appeared to be adequately
'
protected from construction damage.
The construction instrument engineer
appeared fully cognizant of all phases of the work.
8.
Instrumentation Components and Systems Records Review (52055)
The inspector examined three VNs (discussed in paragraph 7) which are used
'
to control field generated changes.
The VNs selected were VN 50141, 50188, and 50161.
VNs 50188 and 50161 have been incorporated on the drawings by design engineering.
The inspector noted that review.and evaluation was
{
performed by design.
The work package identified the VNs and their i
applicability to the work to be performed.
'
9.
Electrical (Cables and Terminations I and II) Review of Quality Records (51065B,510668)
The inspector selected 32 cables for examination to assure that the SAR and QAM requirements were met in the areas of storage, handling, material certification, installation, size and type of cables, location, routing,
,
operation, raceway identification, cable pulling terminations, and raceway
,
l supports. The cables selected are listed Lelow:
i
>
- _ _ - -
- -
-
- - _ - - _ - _ _ - _ - _.. _ _ -
- _ - - _. -.
-.-
_ _ -.
_ - _ - - _ - -.
_ - - -
- -. -.
.
.
i
CABLES 2*CA501 2*CA502 2*EPC511 2*EPC512 2*EPC513 2*EPC524 2*EPC525 2*EPC526 2*EPL529 2*EPL539 2*ELPL537 2*NW549
!
2*NW552 2*NW553 2*NW557 2*FW504 2*FW505 2*FW538 2*NV526 2*NV528 2*EPL548 2*EPL549 2*EPL550 2*NV533 2*NV542 2*NI510 2*NI567 2*RN792 2*EPC537 2*EPC538 2*EPC542 2*EPC565 The reel numbers listed on the cable card were tracked back to the receiving report and the QA records reviewed for the records stored at corporate offices.
Cable was received from three cable companies, Anaconda, Brand
!
Rex, and Okonite.
The pull card identifies the size and type of cable required and specifies the routing and the color code required for separation. The raceway system is identified with the computer node points.
.
The QC inspector's signature verifies on the pull card that the required procedure was used.
The termination card is used to report the inspection of the termination and verification of the wiring connections to the termination points as indicated on the drawings.
Inspection documents for several raceway hangers was examined.
The inspector examined the high potential testing of the following 4160 volt cables:
2*CA502, 2*EPC511, 2*EPC512, 2*EPC513, and 2*CA501.
This testing was performed by Transmission Department's Generating Plant Support Section using procedure TCP/CN0/A/00/0/GS " Power Cable Acceptance and Maintenance Testing" approved February 13, 1979.
Each cable met the acceptance value and was verified by QC, The inspector examined ten nonconformances Nos. 17632, 19858, 19861, 19918, 19933,19923,19937, 19946,19972, and 19108.
The nonconformances were current, legible, complete, and reviewed by QA and management.
The problems were adequately identified, appropriate corrective actions assigned and the status of the resolution was documented.
Within the areas examined, there were no violations or deviations identified.
10.
Electrical (Cables and Terminations I and II) Observation of Work and Work Activities (51063 and 51064)
The inspector selected the cables listed in paragraph 9 above to assure that the terminations were installed as required by the SAR and QAM.
Each cable was verified by the NRC inspector using the wiring drawings.
Also, the inspector examined the installation of the terminal lugs.
The 4160 volt l
-
.
...
power cables were taped and stress cones installed as required.
The 4160 volt cables inspected were 2*CA501, 2*CA502, 2*EPC511, 2*EPC512, and 2*EPC513.
The 4160 volt power cable high potential test reports were examined to assure the terminations were acceptable.
Within the areas examined, there were no violations or deviations identified.
.
4