ML18031A193
| ML18031A193 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 07/17/1979 |
| From: | Curtis N PENNSYLVANIA POWER & LIGHT CO. |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| PLA-383, NUDOCS 7907260651 | |
| Download: ML18031A193 (3) | |
Text
REGULATORY INFORMATION DISTR IBUT IO SYSTEM (R IDS)
ACCESSION NBR: 790726065'1 DOC ~ DATE; 79/07/17 NOTARIZED 5 NO DOCKET FACIL:50 Susqueh'anna Steam Electric Stationr Unit )r Pennsylva 05000387 0 388 squenanna Steam Electric Stations Unit
?-r Pennsy'Iva 05000388 AU AUTHOR AFFILIATION CURT N ~ 'H.
Pennsylvania Power 8 Light Co ~
REC IP ~ NAME RECIPIENl AFFILIATION GRIERr B,H, Region )r Philadelphiar Office of the Director
SUBJECT:
Confirms 790614 verbal rept re damage sustained by safety related cables during cable pulling activities, Problem deemea reportable, Util final rept will be submitted by 791201
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TITLE: CONSTRUCTION DEFICIENCY REPORT () OCFR50,55E)
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TWO NORTH NINTH STREET, ALLENTOWN, PA.
18101 PHONE:
(2 IS) 821-5 IS I NORMAN W. CURTIS Vice President. Engineering 8 Construction 821-5381 July 17, 1979 Mr. Boyce H. Grier Director, Region I U. S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406 SUSQUEHANNA STEAM ELECTRIC STATION INTERIM REPORT OF A DEFICIENCY IN CABLE PULLING ACTIVITIES ERs 100450/100508 FILE 840<<4 PLA-383
Dear Mr. Grier:
This serves to'confirm PPsL's verbal report of June 14, 1979 which advised of damage sustained by safety-related cables during cable pulling activities.
The condition, which was initially identified to the Commission as having the potential for being reportable under the provisions of 10CFR 50.55(e)r has been evaluated.and is considered to be reportable because the use of appzoved Bechtel specifications, procedures and installation practices has led to a significant number of cables of indeterminate quality and damaged cables-primarily, for cables which have been pulled through imbedded conduit.
Had the conditions gone undetected, the failure of cablesr such as the following affected cables which provide DC control power to the ESS 4.16 KV Switchgear, ESS 480 Volt Load Center, ESS Relay Panel, Diesel Generator Panelsr DC Motor Operated HPCI Pump Discharge Valve, etc., could have affected the safe operation or shut down of the plant.
CORRECTIVE ACTION TAKEN:
The difficulties associated with cable pulling activities and the damage to cables have'been documented on PPGL Deficiency Report DR 0096, dated June 12, 1979.
To preclude additional cables from being damaged or classified as indeterminate, pp&L, in conjunction with DR 0096 issued a Stop Work on June 14, 1979.
On June 14, 1979 Bechtel QA issued" MCAR-1-35 reiterating cable 'pulling problems and providing additional examples of deficiencies and references to open.NCRs.
PENNSYLVANIA POWER IL LIGHT COMPANY
~9ogseo
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Mr. Boyce H. Grier July 17, 1979 On June 26, 1979, PP&L authorised a temporary release allowing Bechtel to resume cable pulling under specified constraints.
Cable pulling, which proceeded under the temporary release, was accomplished without the occurrence of further deficiencies.
Therefore<
based upon the corrective action which Bechtel had implemented in response to PP&L DR0096, the pp&L Nuclear Quality Assurance Section released the Stop Work Action via PLB-10125, dated July 17, 1979.
All aspects of the deficiencies and dispositioning of the nonconforming (indeterminate) cables are under investigation by Bechtel. It is anticipated that Bechtel's review and recommendation will be available by October 1, 1979.
Based upon the above time table, PP&L anticipates submitting its final definitive report by December 1, 1979.
Very truly yours, N. W. Curtis Vice President-Engineering
& Construction ARS:mcb cc:
Mr. Robert M. Gallo U. S. Nuclear Regulatory Commission Reactor Construction
& Engineering Support. Branch Region I 631 Park Avenue King of Prussia, Pennsylvania 19406 Mr. Victor Stello (15)
Director-Office of Inspection
& Enforcement U. S. Nuclear Regulatory Commission Washington, D.C.
20555 Mr. G. McDonald
'Office wf'Management XmformaMen "&"Program'Control U. S. Nuclear Regulatory Commission Washington, D.C.
20555