ML20138P093
| ML20138P093 | |
| Person / Time | |
|---|---|
| Issue date: | 12/05/1985 |
| From: | Jocelyn Craig, Robert Pettis NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | |
| Shared Package | |
| ML20138P086 | List: |
| References | |
| REF-QA-99900255 NUDOCS 8512240292 | |
| Download: ML20138P093 (8) | |
Text
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0RGANIZATION: PACIFIC SCIENTIFIC COMPANY ANAHEIM, CALIFORNIA REPORT INSPECTION INSPECTION NO.: 99900255/85-01 DATE(S): 8/12-13/85 ON-SITE HOURS:
17 CORRESPONDENCE ADDRESS: Pacific Scientific Company Kin-Tech Division ATTN: Mr. Edward R. Thomsen, Manager Quality Systems and Services 1346 S. State College Boulevard Anaheim, California 92803
. ORGANIZATIONAL CONTACT: Mr. Edward R. Thomsen, QA Manager TELEPHONE NUMBER:
(714) 774-5217 PRINCIPAL PRODUCT: Inertially operated restraint systems and components.
NUCLEAR INDUSTRY ACTIVITY: Mechanical Shock Suppressors (snubbers) utilized for seismic restraint of piping systems.
01 b /8h3 &.
N #/ 8 ASSIGNED INSPECTOR:
R.\\ L. Pettis, Jr., Special Projects Inspection Date Section(SPIS)
OTHERINSPECTOR(S):
E. Trottier, Reactive Inspection Section (RIS)
M. S udhi, Brookhaven National Lab APPROVED BY:
Id,/f/P6 dphn W. Craig, Chief, SPI 4 Vendor Program Branch
~Da'te INSPECTION BASES AND SCOPE:
A.
BASES:
10 CFR Part 21 and 10 CFR Part 50, Appendix B.
B.
SCOPE:
Review of technical information and QA procedures relative to snubber testing, design, manufacturing, and maintenance activities.
PLANT SITE APPLICABILITY: Multiple including Perry Unit 1(50-440).
0512240292 851220
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,0RGANIZATION:
PACIFIC SCIENTIFIC COMPANY ANAHEIM,_ CALIFORNIA REPORT:
INSPECTION NO.: 99900255/85-01 RESULTS:
PAGE 2 of 8 A.
VIOLATIONS:
None.
B.
NONCONFORMANCES:
None.
C.
JUNRESOLVED SAFETY ISSUES:
None.
D.
OTHER FINDINGS OR COMMENTS:
===1.
Background===
The Pacific Scientific Company (PSC), Kin-Tech Division, is the sole manufacturer of inertially operating mechanical snubbers used for seismic support of piping systems in nuclear power plants. As a result of the overall decline of new nuclear business, there was no production activity to examine at the PSC facility. Consequently, the inspection focused primarily on snubber testing and maintenance services and PSC's relationship with utilities maintaining already installed FSC snubbers.
2.
Snubber Repair and Test Services a.
Repair PSC snubber repair and testing activities for various size Pacific Scientific Arrestor (PSA) units are performed in accordance with the following instruction manuals:
PSC Model #
Rated Load PSC Document #
PSA-1/4, 1/2 350, 650 lbs.
PS 192 PSA-1, 3, 10 1500, 6000, 15000 PS 193 PSA-35, 100 50000, 120000 PS 194 These documents included detailed descriptions of the snubber i
repair procedure which also included:
spare parts procurement; functional testing instructions to an acceleration level of 0.02g for both extension and retraction (used to verify l
restraining action); lost motion test for free play of all
,0RGANI.ZATION:
PACIFIC SCIENTIFIC COMPANY ANAHEIM, CALIFORNIA REPORT INSPECTION NO.: 99900255/85-01 RESULTS:
PAGE 3 of 8 assembled parts; Dead Band (limited to 0.04 inches); and Drag / Breakaway Force Test (which verifies the minimum force applied.to. extend or retract the snubber, and the force required to maintain movement at a constant velocity).
The above tests are performed on PSC's Shock Arrestor Test Stand, Model 524, which is capable of testing all seven models of PSC snubbers.
During the plant visit, the NRC inspectors observed an actual test of a PSA-100 model, undergoing testing to demonstrate activation level.
b.
Testing The Shock Arrestor Test Stand previously mentioned is designed exclusively by PSC and accurately measures and records all functional parameters required to demonstrate snubber operabili ty. As of this inspection,. repair and testing for PSC.is performed at PSC corporate headquarters,in Anaheim, California. Westinghouse Electric's Spartanburg Service Center is the only other facility, authorized by PSC, to perform similar repair and functional testing on PSC snubbers, especially those in high radiation areas. Over 50,000 PSC snubbers are now in operation with approximately 2000 in-the 35-100,000 pound capacity range, or commonly referred to as "Large Bore."
According to PSC, clients are not supplied spare parts for performing site repair without first having sent representatives to PSC training class held in Anaheim. According to PSC's records as of August 13, 1985, 17 customers (made up primarily of vendors and utilities) have completed the course which covers snubber design, operation, maintenance, testing and repair.
Graduates also receive a copy of the entire training session on video tape.
~The NRC inspectors observed a demonstration of the PSC Validator, an in-situ snubber tester, which verifies both activation level and breakaway force functional parameters.
This device, unlike the Model 524 test stand, is a portable, self-powered, and lightweight device suitable to test the snubber while in the installed position.
e ORGANIZATION: PACIFIC SCIENTIFIC COMPANY ANAHEIM, CALIFORNIA REPORT INSPECTION N0.: 99900255/85-01 RESULTS:
PAGE 4 of 8
-3.
~ Snubber Qualification The following qualification testing reports were reviewed by the NRC inspector. These reports documented the ability of PSC snubbers
'to meet their_ qualification test requirements.
Model #
Report Date Report #
PSA-1/4 December 12, 1979 TR 839 PSA-1/2 December 12, 1979 TR 840
.PSA-1 January 21,-1980 TR 841 PSA-10 January 25, 1980 TR 843 PSA-35 February 7, 1980 TR 845 PSA-100
.May 12, 1980 TR 846 4.
Snubber Specific Deficiencies A study, conducted by Brookhaven National Laboratory, under a contract funded by the NRC, identified PSC snubbers, specifically the smaller PSA-1/4 and 1/2 models (350,650 pound rated load respectively), as being sensitive to capstan spring tang failures.
PSC attributes this problem to abusive actions taken by maintenance personnel such as stepping on installed units and overall improper installation practices.
However, PSC did acknowledge that several years ago a batch of capstan springs manufactured by an approved vendor were improperly heat treated. The spring tangs were formed after they were hardened followed by a stress relieving process which may have left residual stress in the root of the spring tang.
Proper corrective action was implemented for those snubbers with defective springs, followed by PSC cancelling the contract with the vendor. A previous NRC inspection report, (83-01), addressed this issue, which was later satisfactorily resolved by PSC.
5.
PSC's standard operating procedure No. 01.07, " Compliance with 10 CFR 21, " Reporting of Defects and Noncompliances," dated May 9, 1985, was reviawed and observed to be adequate by the NRC inspector.
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?0RGANiZATION: PACIFIC SCIENTIFIC COMPANY ANAHEIM, CALIFORNIA REPORT INSPECTION NO.: 99900255/85-01 RESULTS:
PAGE 5 of 8 The most recent Part 21, notification, reported to the NRC by PSC on June 13, 1985, raised concerns over the improper installation of pipe clamps installed by Cleveland Electric Illuminating Company
. at Unit 1 of the Perry Nuclear Station. These clamps were supplied to PSC by Basic Engineers, a division of National Valve and Manufacturing Company (NAVCO). The NAVC0 report stated that improper installation may cause the pipe clamp to slip circumfer-entially when a compressive load, less than the faulted rated load (ASME III-Level D), is applied to the clamp at an angle of five degrees to the clamp centerline, as permitted by design drawings.
Correction of the problem required an increase in torque values for the clamp bolts which in some cases required the installation of new bolts and nuts. All affected customers were notified in writing by_PSC.
6.
Procurement Document Control Chapter 7, " Preparation and Control of Procurement Documents for Materials," and Section 7.1.2 of the Pacific Scientific Company Quality Assurance Manual Approved Supplier's List (ASL), were reviewed to determine the criteria used by PSC to qualify vendors.
Selected supplier evaluation reports were reviewed to determine wheth r the required documents to support incorporation onto the ASL were contained in the file. The following represents a list of those reviewed by the inspectors:
Ccmpany Audited & Approved Criteria Used PSC Auditor Don Rickett Co.
August 14, 1984 Supplier Evaluation Report Charest Carpenter
. Technology May 14, 1985 Supplier Evaluation Report Hartford Mills Alloy February 24, 1985 Steel Co.-
March 24, 1987 QSC324 N/A The suppliers chosen for review were found to meet the requirements for inclusion on PSC's current Approved Suppliers List.
7.
Control of Special Processes Chapter 16 of the Quality Assurance Manual, " Examination and Testing,"
was reviewed to determine the qualification requirements for NDE personnel.
Records for the following PSC employees who perform NDE were reviewed to verify satisfactory and current NDE qualifications:
0PGANIZATION:
PACIFIC SCIENTIFIC COMPANY ANAHEIM, CALIFORNIA REPORT INSPECTION NO.: :99900255/85-01 RESULTS:
PAGE 6 of 8 Name NDE Level PSC Review Date R. Reina NDE:
VT, II September 18, 1984 G. J. DeGrave VT, III April. 3,1985; November 2,1984 R. Reina MT, II November 8,1984 The training and ~ qualification records for the above listed PSC -
employees support their performance of NDE testing.
8.
Control of Measuring and Test Equipment Chapter 13 of the Quality Assurance Manual, " Measuring and Testing Equipment," was reviewed with respect to the requirements of calibration ~ control at PSC. _The following was randomly selected from equipment in the shop to verify current calibration.
Calibration Calibration Calibration Equipment Type /Name_
Control No.
Performed Due Lost Motion Transducer TE-17-41 June 4, 1985 October 4, 1985 Snubber Test Machine TE-18-3 June 4, 1985 October 4, 1985
- 0ptical Comparator TE-19-66 July 2, 1985 November 2, 1985 Hardness Tester TE-17-11 July 8, 1985 October 1,.1985 Height Gauge TE-17-6 February 19, 1985 February 19, 1985 Dial' Indicator TE-18-17 July 16, 1985 October 16, 1985 In summary, the test equipment calibration program at PSC was found to be' organized, properly maintained, and in conformance with the QA program commitments.
E.
' PERSONS CONTACTED:
- E.-Thomsen
- F. Frederickson
- W. S. Wright
- P. Hadnagy P. M. Zatezalo C. J. Charest J. Kowalcki
- Attended exit meeting
0 "0RGAf[IZATION: PACIFIC SCIENTIFIC COMPANY ANAHEIM, CALIFORNIA
-REPORT'
. INSPECTION
'NO.:
99900255/85 RESULTS:
PAGE 7 of 8 F.
DOCUMENTS EXAMINED:
1.-
. Letter, document no. 6000-QS-163-85, dated June 18, 1985. Part 21 notification to Region V.
~2.
Procedure, document no. 01.07, Revision 5-9-85, dated March 6, 1978, Compliance with 10CFR21, " Reporting of Defects and Noncompliance."
'3.
Letter, document no. 6000-QS-177-85, dated July 19, 1985, Potential Problem with Pipe Clamps.
4.
Book, 10 CFR 21 Log.
5.
Qualification Test, document no. TR 839, dated December 12, 1979, Qualification Testing on PSA - 1/4.
6.
Qualification Test, document no. TR 840, dated December 12, 1979,
. Qualification Testing on PSA - 1/2.
7.
Qualification Test, document no. TR 841, dated January 21, 1980, Qualification Testing on PSA - 1.
8..
Qualification Test, document no. TR 843, dated January 25, 1980, Qualification Testing on PSA - 10.
9.
Qualification Test, document no. TR 845, dated February 7, 1980, Qualification Testing on PSA - 35.
~10.
Qualification Test, document no. TR 846, dated May 12, 1980, Qualification Testing on PSA - 100.
- 11. Quality Assurance Manual, document no. QAM, Revision 10, dated April 8; 1985, Pacific Scientific Kin-Tech Division Quality Assurance Manual.
- 12. Quality Assurance Manual, Revision 10, April 8,1985, Pacific Scientific Quality Assurance Manual.
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- 13. -Quality Supplier Control, document no. N-1198, dated August 17, 1984, N-Stamp-Authorization for Class 1, 2, & 3 & MC Component Supports (thru August Q,~1987).
- 14. _ Approved Suppliers List, document no. 6000-QE-157-85, Revision F, dated August 12, 1985, Approved Suppliers List.
r
RGANIZATION:
PACIFIC SCIENTIFIC COMPANY ANAHEIM, CALIFORNIA REPORT:
INSPECTION N0.:~ 99900255/85-01 RESULTS:
PAGE 8 of 8 15.
Form 0198, Revision June 1984, Supplier Evaluation Report for Don Rickett Co. on August 14, 1984.
16.
Form 0198, Supplier Evaluation Report for Carpenter Technology on May 31, 1985.
- 17. Quality Service Control, dated February 24,-1985,.QSC for Mills Alloy Steel Co.~, February 24, 1985 to March 24, 1987.
- 18. Quality Control Document, dated September 19, 1984, NDE Qualification & Certification Record for R. Reina.
- 19.
Procedure,-Revision G, dated November 16, 1984, Penetrant-Examination of Parts & Materials for Nuclear Power Plant Products.
- 20.. Procedure, Revision J, dated November 16, 1984, Magnetic Particle Examination of Parts & Materials for Nuclear Power Plant Products.
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