ML19257A456

Part 21 Rept 79-159-000:on 790924,defective Crimps Found on Pins Used in 72C Insert for Panel H12-P853.Caused by Mfg Personnel Error & Crimping Tool Malfunction Resulting from Inadequate Qa.Utils to Be Advised of Insp & Repair Program

ML19257A456
Person / Time
Site:	Grand Gulf, Susquehanna, Columbia, Limerick
Issue date:	09/28/1979
From:	Sherwood G GENERAL ELECTRIC CO.
To:
References
REF-PT21-79-159-000 MFN-243-79, NUDOCS 8001040337
Download: ML19257A456 (3)

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10 CFR - PART 21 REPORT JOENTIFICATION AND 6 RECORDING OF IE ACTIONS PART 21 IDEHnFICADON NO,

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NAura s) Or LrCENsEE(s), VENDOR (S)

PERSON (S) OR OTHER ORGANIZATION (S) gg -

tEPORTING M , hWb I A-GENERAL SUMECT OF REPORT /,)

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MM M M M M Pg3 DATE OF INITIAL NOTIFICATION DATE(F) OF PART 21 REPORT (S),(5 DAY & SUPPLEMENT)

(4s Hour REPORT) T/af/7 9 9/aP/79f f i f FACILITY (IES) INVOLVED: #o-3P7 go -3fa , fe - 3 r3 ro - W6, -

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LEAD = 1 SUPPORTIVE - 2 FF& MSI Si RCI ROI IE ACTIONS - CHECK OR PROVIDE DATA AS APPROPRIATE LIST OTHER NRC OFFICES INFORMED DISCUSSED WITH INITIATOR 7 REPORT IS REQUIRED DATE:

UNDER PART 217 REQUEST MADE FOR ADDITIONAL INFO? INQUIRY?

DATE RECEIVED: l PRESS RELEASE (S) INSPECTION 7 REV!EWED FOR POTENTIAL A/O- (MC 1110) , INVESTIGATION 7 DATE:

TRANSFERED TO OTHER NRC OFFICE? ENFORCEMENT?

e BULLETIN ISSUED? NO. CORRECTIVE ACTION TAKEN?

DATE OF CLOSEOtJT: CIRCULAR ISSUED 7 NO.

CLOSEOUT METHOD:

IE REPORT NUMBERS:

DATE OF FINAL REVIEW & DIS *RIBUTION: .

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ADDITION AL COMMENTS:

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8001040 3 3 7 3

7c]- /59- 000 GENERAL h ELECTRIC NUCLEAR POWER SYSTEMS DIVISION GENERAL ELECTTUC COMPANY.175 CURTNER AVE SAN JOSE, CALIFORNIA 95125 MC 682, (408) 925-5040 September 28, 1979 MFN-243-79 Mr. Robert H. Engelken Office of Inspection and Enforcement U. S. Nuclear Regulatory Comission (. -

Ragion V 1900 North California Street

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Walnut Creek, CA 94596 '

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Dear Mr. Engelken:

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SUBJECT:

REPORTABLE CONDITION CONNECTOR PIN

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_ .:tW' CRIMPING DEFECTS ON PANEL INSERT P853-72C This is to advise the NRC of a reportable condition per 10CFR Part 21.

It was reported to Mr. Bobby Faulkenberry of your office by Walter H.

D'Ardenne, Manager, Safety Evaluation Programs on September 25, 1979.

The defect is in pin crimps in Panel H12-P853 insert 72C. The defect war judged to be reportable on September 24, 1979. Attached is a repor+. of the defect.

General Electric (GE) as the supplier of the subject insert will infom the utilities affected and advise them of GE's inspection and repair program.

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GE G. Sherwood, Manager

'afety & Licensing Operation GGS: pes /847 Attachment 1685 340

4 PANEL H12-P853 INSERT 72C DEFECTIVE CONNECTOR PIN CRIMP 5 Defective crimps were found on pins used in connectors in the 72C insert for panel H12-P853 for the Susquehanna plant. This panel is comon to both Unit 1 and Unit 2. It was determined that a combination of manufacturing personnel error and crimping tool malfunction as a result of inadequate QA was responsible for the defective crimps. The defect consists of a crimp which cannot meet the required pull force.

The defective crimps do not crc-ate a safety hazard on this particular panel. However, the defective crimps could have occurred on other panels including one that could have caused a substantial safety hazard.

Thus the condition is reportable.

GE has identified a time period for this QA breakdown. The plants identified that aay have similar problems are Grand Gulf 1 & 2, Limerick 1 & 2, and Hanford 2.

GE has established an inspection program to detennine whether this deviation exis'.s on the above mentioned plants. The plants identified will be notified of GE's plans for inspection.

This inspection will be completed by January 18, 1980. Where rework and/or repair is found to be required, GE will establish a repair / rework schedule consistent with project schedule requirements. Also manufacturing and QA procedures have been modified to preclude defective crimping in the future.

TRR: pes /927 1685 341

/0 dau//2/27/79 ATTACHED IS A PART 21 REPORT FROM IE f%IL UNIT - ROOM 359FM PART 21 IDENTIFICATION to. 79-/f9-ooc > COMPANY t#E 6E DATE OF ETTER '7/2f/79 DOCVET No.fo-H7352 yrp4/6,9/8 M7 DATE DISTRIBllTED /d//r/P ORIGINAL REPORTSUPPLD E EITARY DISTRIBUTION:

REACTOR (R) _

FUEL CYCE & SAFEGUARDS (S) f%TERIALS(M)

NRR/ DOR, DIRECTOR AD/FFMSI- AD/SG-IE NRR/DPM DIRECTOR NE/FCMS AD/ROI AD/ROI ( 2 ) REGIONS REGIONS AD/RCI IE FIES NRR/DDR, DIRECTOR REGIONS PDR NMSS/SG SS-881 IE FIES (2) IPDR PDR CENTRAL FIES CBERAL FIES-SS-396 LPDR CB4 TRAL FIES (CHRON) TEPA CBITfL (016 FIES(CHR000 PDR IE FIES (2) g 3 CENTRAL FIES 016 BGBDB4NIG,MPA CBRPAL FIES (CHRON)

B0BDENNIG,MPA CBiTRAL FIES - SS-396 B0B DSINIG, MPA ACTION: .

PRELIMINARY EMtALATION OF THE ATTACHED! REPORT INDICATES LEAD RESPONSIBILIT FOLLGi-UP AS SHOWN BELOW:

JM] ueaC eraE omO

@ ROI SG FFMSI 1685 342 REV. 6/L3/79

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