ML18031A072

Confirms 790109 Rept Re Deficient Termination Module Connectors Plugs & non-safety Related Cables.Forwards Suppl Rept

ML18031A072
Person / Time
Site:	Susquehanna
Issue date:	01/15/1979
From:	Curtis N PENNSYLVANIA POWER & LIGHT CO.
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML18031A073	List: ML18031A072 ML18031A074
References
NUDOCS 7901230189
Download: ML18031A072 (3)

Text

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PP8.IL TWO NORTH NINTH STREET, ALLENTOWN, PA. 18101 PHONE: (215) 821-5151 NORMAN tier. CURTIS Vice President Engineering & Construction 821.538 I January 15, 1979 Mr. Boyce H. Grier Director, Roon I U.S. Nuclear Regulatory CcmLission 631 Park Avenue King of Prussia, Pennsylvania 17406 SUSQUEHANNA STFDM ELECTRIC STATION SUPPLEMENTAL INFO%'LWION KQ Ib'~ER3M REPORP OF FABRICATION DEGAGE K) WIRING ON Tr&~ION YDDULE CONNECTORS FOR ACR EQUIPMEVZ PLA 301t N~~ER NO.: 50-397 14'OCKET LICENSE NO.: CPPR-101 ~

ZR 100450 FILE 840-4 PLA-313

Dear 1th. Grier:

This will serve to confirm PPGL's report of 1/9/79 (A. R. Sabol, PPGL to KC Reactor Inspector, A. Finkel) which conveyed supplemental information relative to the subject interim report.

The initial report advised that the deficiency, which was peculiar to terTILination module connector plugs, was under further investigation. Sub-sec{uently, during the process of sho2~ning PGCC cables, high percentage (approximately 30%) of non-safety related cables also it was rated that a edubited cuts and nicks similar to those reported for the T-modules. These PGCC cables, which were also supplied by G.E., are used to interconnect the ACR panels ard the terinination cabinets.

I Specifically, the deficient conditions noted durirg the process of shortening the PGCC cables included the following:

o Conductor insulation nicked or damaged o Wires not properly installed or crimped in the connector pins o Improper. soldering (this involves carrying the cable shield through the connector plugs via a connector pin)

PE('ULrt )any p~ go' VBOi83 0(f 7 PENNSYLVANIA POWER & LIGHT COMPANY

Mr. Boyce H. Grier January 15, 1979 Cable shortening of safety-related cables has not yet started and there is no absolute evidence that they are so affected; however, due to problems identified for the high percentage of non-safety related cables, the condition is being projected as genic and, therefore, potentially reportable under 10CFR50. 55 (e) .

The corditions relative to PGCC cable have been 'identified by Bechtel and are being controlled under NCR-3231 even though the deficiencies concern non-safety related circuits. Bechtel has also documented the conditions in its IMPAR-1-29 (attached) and a January 2, 1979, supplement thereto.

You will be advised of further developaents as they occur.

Very truly yours, N. N. Curtis Vice President-Engineering 6 Construction ARS:rn b ce: Yir. J. G. Davis (15)

Acting DirectorWffice of, Inspection G Enforcement U. S. Nuclear Regulatory Cmmnission washington, D.C. 20555 )

>W. G. McDonald, Director (1)

Office of Management Information s Program Control U. S. Nuclear Regulatory Canmission Washington, D.C. 20555 Mr. Robert M. Gallo (1)

U. S. Nuclear Regulatory Carznission P. O. Box 52 Shickshiriny, Pennsylvania 18655