IR 05000029/1972002
| ML19343B123 | |
| Person / Time | |
|---|---|
| Site: | Yankee Rowe |
| Issue date: | 06/01/1972 |
| From: | Baunack W, Howard E, Spessard R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| Shared Package | |
| ML19343B120 | List: |
| References | |
| 50-029-72-02, 50-29-72-2, NUDOCS 8012040526 | |
| Download: ML19343B123 (9) | |
Text
....
.
.
O
.
U. S. ATOMIC ENERGY CO)0!ISSION DIVISION OF COMPLIANCE
REGION I
CO Inspection Report No. 50-29/72-02
Subject:
Yankee Atomic Electric Company Yankee, Rowe License No. DPR-3
,,
Location: Rowe, Massachusetts Priority
,
C Category
Type of Licensee: Westinghouse, 600 MWt, PWR Type of Inspection: Special (ECCS Installation) Announced
,
,
k Dates of Inspection: April 25-27, 1972 Dates of Previous Inspection: February 16-18, 1972 i-Principal Inspector:
.
f. 64mv S///7.1
'
W. H. Baunack, Reactor Operations Branch Date Accompanying Inspectors:
b.
Mag 4 44 '
S-/- 72 E. M. Howard, Sr. Reactor Const. Branch Date
'
.
'
f ^'
Date Other Accompanying Personnel: None
.
Reviewed By:
4,..
. 8 (' / p y,
,
'Dite R.L.Spessard[,#eactorOperationsBranch R
Proprietary Information: None
.
.
&
V
,
.
8012040 M [
- - -.. - -....
....... _
...
..
....
.. _..
_ _
.,
.,.
.
.. _. _
. _. -. _ _ _....., _..
_
. _..,.
_, ~.,. -,.,..
_,
_ _,.,
.,. _. -,
,,..,
.
..
.
.
Secticn I Enforcement Action I Valves MOV 532 and MOV 533 do not meet the requirements of ANSI B 31.7.
(Section III, Paragraph 11)
Licensee Action on Previous 1v Identified Enforce =ent Matters only those ite=s* pertaining to the new ECCS were inspected.
A.
Finished Weld Surfaces - Engineer Safeguards Piping - Seven Welds were identified which did not meet the " merge smoothly" require-ments.
Item remains open.
(Section III, Paragraph 1)
B.
Pipe without identifying marking - Un=arked pipe was clearly identified as scrap and was segregated frem the pipe storage areas.
Item is considered closed.
(Section III, Parc3raph 2)
C.
Qualification of NDT Personnel - Inspection revealed that the
!
qualification certifications for NDT personnel are complete.
Item is censidered closed.
(Section III, Paragraph 4)
D.
Imptoper Certification of NDT personnel - Records were available indicating that the two persons employed by the laboratory per-forming shop NDT were qualified under SNT-TC-1A.
Item is con-
sidered closed.
(Section III, Paragraph 5)
'
E.
Co=patibility of Materials - Carbon steel hangers are used in contact with austenitic stainless steel pipe.
Item remains open.
(Section III, Paragraph 5)
F.
Piping ends - All piping was found to be capped and properly stored.
Item is considered closed.
(Section III, Paragraph 7)
'~
G.
Control of interpass temperatures - Procedures and quality control documentation were made available which indicate that the inter-pass temperatures were controlled.
Ite= is considered closed.
(Section III, Paragraph 8)
.
H.
Radiography and LP examination of welds M-19, M-31 and M-47 - The weld data sheet did not originally identify these welds as weldolets which do not require radiography.
Item is considered closed.
(Section III, Paragraph 9)
.
- RO Report 50-29/72-01
.
._
...... -..
. _.
.....
.
..,,.
o
.
.
e-2-
,
I.
Confor=anc'e to Criterion VII, Appendix B - Documentation was made available indicating that the valves and accumulator met the documentation requirements and the applicable codes. The
,
pumps deviated in chemical analysis which was approved by the licensee.
Item is considered closed.
(Section III, Paragraph 10)
J.
Inspection by Qualified Inspector or Examiner - Th; inspection requirements of paragraph 1-736.1, ANSI B 31.7 had not been met.
Item remains open.
(Section III, Paragraph 3)
Unresolved Items
,
QA program to assure appropriate identification and traceability of materials procured in accordance with ANSI B 31.7.
(Section III, Paragraph 2)
Status of Previousiv Reported Unresolved Items Not inspected.
Unusual Occurrences Not inspected.
Persons Contacted Mr. H. Autio, Plant Superintendent Mr. T. Danek, Operations Supervisor
Mr. E. Jackson, Day Shift Supervisor Mr. W. Jones, Reactor Engineer
.
Mr. R. Reid, Technical Assistant to Plant Superintendent Mr. M. Sclaurent, Instrument Control Supervisor Mr. J. Singleton, QA Specialist, YAEC (Westboro)
Management Interview
The following subjects were discussed with Mr. Autio and Mr. Singleton
-
on April 27, 1972:
A.
Accumulator Level Instrumentation The inspectors stated that an inspection of the accumulator in-stallation showed that only one level instrument had been installed.
Mr. Autio stated that this was all the design called for, but should this presen any difficulties affecting operations, it would be relativ.ly simple to add an additional level transmitter.
b B.
Facility Precedures
h The inspectors stated that considerable progress had been made in
."
making the necessary changes to facility procedures as a result of
'
'
the new ECCS installation, but that additional work remained.
Mr.
,
Autio stated that plant review of the procedures was almost 100%
.
.
==e
- .-
amms.....e4
.
-
_
.. -- -
,
.
-
P
3-
-
cceplete and that only k'estboro's review remained to be dane.
He further stated that all necessary procedure changes anit reviews would be completed prior to startup.
C.
Training
The inspectors stated that the special operator training program pertaining to the operation of the new ECCS appeared to be ade-quate, but that records showed scme operators had not completed the training.
Mr. Autio stated that all operators would receive the complete training program established and that they would be required to pass a comprehensive examination covering the installation and operation of the new ECCS prior to startup.
'
.
D.
Pressurizer Pressure Sensing Line
The inspectors stated that the sensing line from the pressurizer to one of the ECCS initiating circuits consists of approximately
.
100 feet of tubing outside the vapor container with no provision
'
for isolation.
Mr. Autio stated that the line had been installed in 1968 (Proposed Change 82) and contained a manual stop valve within the vapor container and an excess flow check valve at the transmitter.
E.
Three Loop Ooeration The inspectors stated that it appeared all the analyses and tests
of ECCS performance had been conducted for four loop operation,
'
'
yet the plant is permitted to operate on three loops. Mr. Autio stated that three loop operation would be analyzed prior to startup and that possibly they would not operate on three loops pending completion of a safety analysis for this case.
F.
Insoection Recuirements
!
l The inspectors stated that an inspection of the ECCS erection by l
a qualified examiner as required by ANSI B 31.7 had not been per-formed. Mr. Singleton stated that the insurance company bod.been
'
notified and had elected not to inspect.
G.
Valve Qualifications The inspectors stated that valves MOV 532 and MOV 533 do not meet
!
the " Draft ASME Code for Pumps and Valves for Nr. clear Power".
Mr. Singleton stated that this would be referred to their engineering department for review since this was a design problem.
(Section III, Paragraph 11)
,
.
Ap p. e se
. e a-a e p om
~
- e e
e g
+
l
,,,
-
,
,.,. - -.
. _.,.,,,...,,
,,., -.,-- --
,-
-_.,
--.
,
.-
-
-
_ _ - _
.
-4-
,
Section II Prepared by W. H. Baunack Additional Subiects Inspected Not Identified in Section I, Where No Deficiencies Or Unresolved Items Were Found 1.
General The plant remains shutdown as a result of a fault in the main electrical generator sustained on February 12, 1972. During the time required to repair the generator, a refueling was per-formed and a new ECCS was installed.
At present, the licensee is awaiting a license change to permit operation with two spare hafnium control rods in place of two Ag-In-Cd rods which showed evidence of binding during testing.
The scheduled startup date is the second week in May, 1972.
2.
Completed Procedures Pertaining to the New ECCS a.
Acceotance from construction (1) 72-1, determined that the ECCS has been constructed according to the design specifications.
(2) 72-1-1 to 72-1-6, verified that all piping and valves have been installed as shown on drawings.
(3) 72-1-7 to 72-1-12, checked ECCS pumps for proper align-ment, rotation, vibration and lubrication.
(4) 72-1-13 to 72-1-23, checked ECCS valves for proper in-
~
.
j sta11ation, electrical and mechanical operation, and manual operation.
- .
(5) 72-1-24 to 72-1-26, checked pressure, flow and level
'
instrumentation for proper installation, b.
Flushing (1) 72-2, Installation of strainers
-
'
(2) 72-3, Cle. ing of N lines
(3) 72-5, C.'.eaning of LPSI accumulator (4) 72-7, Flushing of LPSI piping (5) 72-8, Flushing of KFSI piping (6) 72-9, Cleaning of the LPSI accumulator fill and outlet lines
.
.
,.
.
e, es s,
=e
@
%
m y
~-
y
~
~~n m
g
-
.
.
.
.
-S-(7)
72-10, Removal of strainers in the SIS c.
Hydrostatic Tests (1)
72-11, Hydrostatic test of LPSI accumulator (2)
72-12, Hydrostatic test of LPSI suction piping (3)
72-13, Hydrostatic test of f. PSI discharge piping (4)
72-14, Hydecstatic test of the HPSI discharge header
.
(5)
72-15, Hydrostatic test of the HPSI pump discharge l
lines 1 -
(6)
72-4, Hydrostatic test of N lines
d.
Operational Tests
'
(1)
72-16, SIS operational check - verified the correct operation of the safety injection pumps, valves and their indicating lights when the initiating relays are actuated manually and automatically.
(2)
72-19, Flow test of the two ECCS trains with emergency power - demonstrated the ability of the two ECCS trains
'
to deliver the desired quantity of SI water to,the main coolant system under simulated loss of station service main ceolant pressure conditions.
(3)
72-21, Flow test 'of LPSI accumulator - demonstrated e:he
'
,
ability of the LPSI accumulator to, supply a minimum
'
amount of borated water to the main coolant system.
,
(4)
72-22, Loop SI valve operation test - demonstrated that loop safety injection valves are capable of opening and closing under maximum differential pressure and maximum flow con-ditions.
-
I e.
Instrument Installation and Calibration
,
I (1) LPSI accumulator level
,
(2) LPSI accumulator pressure switches l
,
(3) LPSI accumulator pressure readout
,
!
(4) HPSI pump discharge pressure (
(5) LPSI pump discharge Iressure (6) HPSI pump discharge header pressure i
(7)- LPSI pump discharge header pressure
,
'
(9) LPSI header flow (10) SI loop pressure
,
(11) SI loop flov
+
l l
f I
.-..._..
.
._
-. - _ _. -. ~ =. _.. _.
_-. ~.
. ~.. -
. _.
. -
. -. -. _ -. _. -
-
.
.
-
_
,
,
j
.
.
,
- .
-6-I Miscellaneoud Recuirements Contained in Proposed Change No. 96
'
3.
'
Emergency diesel and SI pump starting times a.
b.
Pcwer sources for ECCS pumps and valves
c.
ECCS operating procedure
i d.
Operation of pilot operated accumulator safety valves Control room instrumentation available to the operator
e.
4 i
..
.
.
- {
j
..
'
l.
)
-
i
-
i t.
I
i
.
.
4
- I
'
I
.
l
k i
r p
'
..
'
e
t i
...
.
.
w
-
.
_
-
..
-7-
'
Section III Prepared by E. M. Howard Additional Subiects Inspected, Not Identified in Section I, Where No Deficiencies or Unresolved Items Were Found None Details of Subjects Discussed in Section I 1.
Finished Weld Surfaces-Engineer Safeguards Piping Welds were inspected throughout the installation and several welds
'
which did not meet the " merge smoothly" were identifed.
Inspection by the licensee confirmed that seven welds required additional
.
grinding. Work was not completed at the time the inspection was concluded.
2.
Piping without Identifying Markings All piping in storage was inspected. All piping contained markings which permitted tracing the pipe to the materials cerfication report.
Unmarked pipe was clearly identified as scrap and was segregated from the pipe storage areas. However, there was no definitive QA program for this area, and this is considered an unresolved item.
3.
Inspection by Qualified Inspector or Examiner l
Paragraph 1-736.1, ANSI B 31.7 requirements relative to inspection
of ANSI B 31.7 Class I piping has not been performed.
I
.
4.
Qualification of NDT Personnel f
Inspection revealed that the qualificatier. certifications for NDT personnel are complete. Records show that "AEE" was Alvah Early
who was certified / qualified as Level II, Pediographic Testing,
'
SNT-TC-1A on November 2,1968 by examiner Emil Johnson. Liquid penetrant qualification was accomplished at Level III, SNT-TC-1A on March 5, 1968.
.
5.
Imorocer Certification of NDT Personnel
!
Records were available indicating that the two persons employed
!
by the laboratory nerforming shop NDT were qualified under SNT-i TC-1A.
l
!
W. D. Zeik was certified as Level III, Ultrasonic, SNT-TC-1A l
without examinailon lu November 1969 by Dr. O. T. Hocue.
In
,
j December 1969 W. D. Zeik certified E. P. Handrahan as Level III, j
Radiography, SNT-TC-1A without examination.
l
'
.
,
me ue. *=
e-m.-
-
'
!
- __
~
.
--
._
.-
-
.
-
_
_
.
-
-
.
- .
-
.
!
-8-6.
Compatibility of Materials Carbon steel hangers and yokes are used in contact with austenitic stainless steel pipe, however, the licensee stated that a technical
-
report woald be supplied supporting the use of carbon steel in con-tact with austenitic stainlass steel.
7.
Piping Ends All piping storage areas were inspected. All piping was found to be capped and properly stored.
8.
Control of Interpass Temperatures
.
Procedure P-SF-354N-1 does not prohibit the use of a trans-joint
.
weave' veld nor is the maximum width specified: Weld data report P-8 dated 8-23-71 indicates that interpass temperatures was taken by inspector "AEE".
,
9.
Radiography and LP Examiniation of Welds M-19, M-31 and M-47
,
The S&W specification presented during the previous inspection was not applicable to this work.
The applicable specification is a
'
Hartwell specification which does not require radiography of weldolets.
M-19, M-31 and M-47 were verified to be weldolets.
.
10. Conformance Pumps and Valves to Criterion VII; Appendix B A detailed review of records indicate full conformance of valves and accumulator to the documentation requirements end the applicable code.
..
The pumps deviated in the chemical analysis; however, mechanical l
properties were satisfactory. Deviations were reviewed by the.
licensee's engineering department and approved.
11.
Use of Valves Not Qualified to ANSI B 31.7
!
Two valves, MOV 532 and MOV 533 were installed in the system
'
described in Change No. 96, which did not have documentation indicating conformance to ANSI S 31.7.
'
.
.
O'
.
-
O
.y,
.
.
.
..
..
.
.- -
+.
.
-,
_ _.
.
.
,
-
- _.
.
,
,