ML20127N222
| ML20127N222 | |
| Person / Time | |
|---|---|
| Issue date: | 05/13/1985 |
| From: | Hubbard G, Potapovs U NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | |
| Shared Package | |
| ML20127N176 | List: |
| References | |
| REF-QA-99900912 NUDOCS 8505230471 | |
| Download: ML20127N222 (16) | |
Text
_ _
. ORGANIZATION: NATIONAL TECHNICAL SYSTEMS ACTON, MASSACHUSETTS REPORT INSPECTION INSPECTION NO.: 99900912/85-01 DATE(S): 4/1-5/85 ON-SITE HOURS: 91 CORRESPONDENCE ADDRESS: National Technical Systems ATTN: Mr. G. Dowd General Manager 533 Main Street Acton, Massachusetts 01720 ORGANIZATIONAL CONTACT: Mr. A. A. Dorr, Quality Assurance Manager TELEPHONE NUMBER: (617) 263-2933 PRINCIPAL PRODUCT: Environmental testing services.
NUCLEAR INDUSTRY ACTIVITY: National Technical Services (NTS) provides qualifi-cation testing services for the military and both the conventional and nuclear power industry. Approximately 25 percent of the services are for the commer-cial nuclear power industry.
ASSIGNED INSPECT 0 :
G.
bb 6 n $w _
. Hubbard, Equip. ]ual. Inspec. Section (EQIS)
C B-fT*
Date OTHERINSPECTOR(S): R. N. Moist EQIS E. R. Richards, Sandia National Laboratories
]f APPROVED BY. iw C-t g-pf U. Potapovs. Ch ef. EQ' S. Vendor Program Branch Date INSPECTION BASES AND SCOPE:
A. BASES: Appendix B to 10 CFR Part 50 and 10 CFR Part 21.
B. SCOPE: This inspection consisted of: (1) a technical evaluation of Eiqiiiiiment Qualification (EQ) test activities for safety related equip-ment, (2) verification of implementation of the quality assurance program (QAP), and (3) evaluation of test data relative to a 10 CFR Part 21 report issued by Anacon concerning the loss of adhesive properties of the epoxy used in manufacturing the probes for Anacon chlorine monitors.
PLANT SITE APPLICABILITY: 50-312and412(BeaverValley1and2)and50-334 (RanchoSeco).
gg52gQ $
99900912
. ORGANIZATION: NATIONAL TECHNICAL SYSTEMS ACTON, MASSACHUSETTS REPORT INSPECTION nn - 49400412/85-01 RESULTS: PAGE 2 of 5 A. VIOLATIONS:
None.
B. NONCONFORMANCES:
- 1. Contrary to Criterion V of Appendix B to 10 CFR Part 50 and IEEE Standard 323-1974 paragraph 6.3.1.1(7), NTS test plans or test proce-dures did not list test equipment requirements or their accuracies.
- 2. Contrary to Criterion V of Appendix B to 10 CFR Part 50 and the paragraph entitled, " Test Reports" of NTS standard operating procedure, 50P 10/83, dated February 1, 1985, the individual who had approved revision 1 to qualification test report 17807-1 was not on NTS's list of individuals authorized to approve test reports.
C. UNRESOLVED ITEMS:
None.
D. OTHER FINDINGS OR COMMENTS:
- 1. Technical Evaluation: The NRC inspector and Sandia consultant performed an in-depth technical evaluation and review of seven test programs for qualification testing of safety-related electrical equipment. The following table summarizes the test programs examined including equipment type and types of documents examined.
Program Number Equipment Type Documents Examined 18227 Components for Test procedure (TP), test Remote Shutdown specification, purchase Panel order, log books, test data sheets 17244-82N-C Magnetrol Level Testreports(TRs), purchase 82N-E Controls, Micro orders (P0s) 82N-F Switches, 0-rings, 82N-F-1 Switches, phenolic 82N-8 terminal blocks and switchboard cable
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. ORGANIZATION: NATIONAL TECHNICAL SYSTEMS ACTON, MASSACHUSETTS REPORT INSPECTION .
NO.: 99900912/85-01 RESULTS: PAGE 3 of 5 Program Number Equipment Type Documents Examined 18577-83N SOR pressure TR switch Test program 18227 had been completed, but the TR had not been written; therefore, the TR will be reviewed during a future inspection. Supporting documentation for programs 17344-82N-C, -E,
-F, -F-1 and -8 and 18577-83N had been reviewed during previous inspections when the TRs had not been complete; therefore, only the TRs and P0s for these programs were reviewed and evaluated during this inspection.
The NRC inspectors and Sandia consultant reviewed and evaluated the EQ process prescribed in each test program. The test documentation reviewed for each of the seven programs was examined to verify that:
- a. Adequate test instrumentation and its accurancy was described and used to meet the requirements of NUREG-0588,
- b. Equipment interfaces were addressed.
- c. Test acceptance criteria were established as described in the test specification or in the design engineering documents, such as calculations and engineering letters to meet the nuclear regulatory requirements of NUREG-0588/IEEE-STD-323-1974.
- d. Same equipment was used for all phases of testing and represented a standard production item.
- e. Environmentalconditionswereestablishedanddescribed(e.g.,
pressure and temperature profiles, and thermal aging factors were consistent with those outlined in the test specification ortestplan).
- f. Test results were adequately reduced and evaluated against established acceptance criteria described in customer test specifications or purchase orders,
- g. All prerequisites for the given tests as outlined in the test specification had been met.
ORGANIZATION: NATIONAL TECHNICAL SYSTEMS ACTON, MASSACHUSETTS REPORT INSPECTION NO.! 99900912/85-01 RESULTS: PAGE 4 of 5
- h. Test equipment included a description of all materials, parts, and subcomponents.
During the above evaluation and review, the NRC inspector identified the nonconformance described in paragraph B.1.
- 2. Upcoming Testing: During the inspection, the NRC inspectors reviewed purchase orders and preliminary test procedures associated with three test programs scheduled to start in the next several months. These three programs (project numbers 19547,17297-1-82N,and18990) consist of the testing of flow transmitters, current transformers, and pressure transducers to simulated environmental test conditions up to and includingloss-of-coolantaccident(LOCA)/highenergylinebreak (HELB) environments. The test efforts on the above programs will be reviewed and evaluated during future NRC inspections.
- 3. Followup on 10 CFR Part 21 Report: Anacon, Burlington, Massachusetts, filed a 10 CFR Part 21 report with NRC Headquarters concerning the loss of adhesive properties of the epoxy used in manufacturing the probes used in their chlorine monitors.
The NRC inspector reviewed and evaluated one TP, one TR, and the failure notification file relative to NTS's qualification testing of the Anacon chlorine monitors. The inspector determined that seven chlorine detector probes, along with other associated equip-ment that comprise the chlorine monitors, started the test program, which included functional tests, thermal aging, radiation aging, seismic testing, and abnormal environment simulation. All seven probes were exposed to thermal and radiation aging; however, only four probes were initially subjected to seismic testing. During this seismic testing of the four probes, the epoxy adhesive failures were observed. Following the adhesive failures, which were attributed to the 85'C temperature for 543 hours0.00628 days <br />0.151 hours <br />8.978175e-4 weeks <br />2.066115e-4 months <br /> used during thermal aging, the failed probes were taped together and seismic testing was completed.
Following this, the tape was removed and three of the four probes were subjected to and successfully completed abr.ormal environment testing and final functional testing. Subsequent to the above, the i three probes which were not initially subjected to seismic testing were modified with mechanical fasteners performing the functional requirement of the failed epoxy adhesive. These three mechanically fastened probes then successfully completed seismic testing.
The mechanical fastener modification to the probes included the l insertion of site 00, & inch, 18-8 stainless steel Type U drive screws at 90* intervals around the body of the probe into the i
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. ORGANIZATION: NATIONAL TECHNICAL SYSTEMS ACTON, MASSACHUSETTS REPORT INSPECTION un - 404n0017/85-01 RESULTS: PAGE 5 of 5 top and bottom plates of the probes. In addition similar screws were inserted through the filament housing and the bottom of the probe housing. This modification is documented in Anacon drawing No. 1700002, Revision D. The effect of this modification is that the structural functions previously performed by the epoxy adhesive is now performed by non-age sensitive mechanical fasteners.
Since only test data was reviewed at NTS, review of information relative to Anacon's evaluation and notification to customers of the adhesive failure will be followed up during a future inspection at Anacon.
During the above 10 CFR Part 21 evaluation, the NRC inspector identified the nonconformance described in paragraph B.2. The inspector further recommended to the QA manager that NTS should consider clarifying their procedures on the issuance of documents; such as, test reports and procedures, so that it is clear as to how revisions to these type documents are generated, reviewed, and approved.
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