ML18031A290
| ML18031A290 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 10/11/1979 |
| From: | Curtis N PENNSYLVANIA POWER & LIGHT CO. |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| PLA-409, NUDOCS 7910180246 | |
| Download: ML18031A290 (3) | |
Text
REGULATOR INFORMATION DISTRIBUTION
~TER (RIOS)
ACCESSION NBR:791018024b DOC,DATE: 79/10/11 NOTARTZEO:
NO FACIL:50<<387 Susquehanna Steam Electric Station>>
Unit 1>> Pennsylva 50 388 Susquehanna Steam Electric Station>>
Unit 2>> Pennsylva AUTH BYNAME AUTHOR AFFILIATION CURTIS>> N ~ W I Pennsylvania Power 8 Liaht Co.
REC IP ~ NAME RECIPIENT AFF ILIATIOhl GRIER>> 8 ~ H, Reqion 1>> Philadelphia>>
Office of the Director DOCKET 050 05 &@8~8
SUBJECT:
hjoti fies of potential deficiency in Cutl er Hammer push button switches>>in addition to >>iefects 5 conditions in Amphenal connector pins 8,
F 30 switches noted in 790911 ltr.
Peportability to be determined by 791111, DISTRIBUTION CODE:
8019S COPIES RFCEIVED:LTR
- l. ENCL ~
SIZE:
TITLE: Construction Deficiency Report (10CFR50
~ 55E)
NOTES:
RECIPIENT ID CODE/NAME ACTION:
14 PM ~/O'E'4 20 L4 ECcJ+ +g INTERNAL:
1 RFC Pf'LF 05 A~E 08 MPA 10 GAB 12 JORDAN>>E/IE 16 AO FOR ENGR 17 AD REAC.SFTY 23 OELO DIRFCTOR OSE IR,C SYS RR MECH EhlG 81 S
HANAUFR EXTEPhlhL:
03 LPDR 24 ACRS COPIES LTTR EhlC 1
1 1
16 1
RECIPIENT I 0 CODE/h'AME BC LuJ< ~~
STAFF Oo DE'PY DIR OPM 11 STANDRDS OEV 13F IELO COOR/IE 17 AO. PLAhlT SYS 22 DIR OPM AD/SITE TECH GEOSCIENCES BR MATL ENG BR PD'AER SYS BR STRUCT ENG RR 04 NSIC COP IF S LTTR ENCL 1
1 1
TOTAL NUMBER nF COPTES REQUIRED:
LTTR 47 EhjCL
TWO NORTH
= NINTH STREET, ALLENTOWN, PA.
18 IOI PHONE: (215) 821-5151 NORMANVI. CURTIS Vice presioent Engineering 8, Construction 821-5381 October ll, 1979 Mr. Boyce H. Grier Director, Region I U. S. Nuclear Regulatory Commission 621 Park Avenue King of Prussia, Pennsylvania 18406 SUSQUEHANNA STEAM ELECTRIC STATION NOTIFICATION OP A POTENTIAL DEFICIENCY IN AMPHENOL CONN="CTORS AND CUTLER KVIMER E-30 SWITCHES (STATUS UPDATE)
ERs 100450/100508 PILE 840-4 PLA-409 Dear Mr. Griers Defects and conditions reported in PLA-399 of September ll, 1979 concerning Amphenol female connector pins and push button switches are still under review by our Nuclear Steam System Supplier, General Electric.
Because of the need to secure a technical assessment from G.E., the evaluation of the reportability of the deficient.conditions has not been completed.
Based upon G.E.'s assess-ment and following Bechtel Corporation's evaluation of the NSSS report on these
- items, PPGL will conduct its evaluation and advise the Commission accordingly.
In the interim, additional inspections have revealed that, in addition to the defects on Cutler-Hammer push button switches outlined in PLA-399, the following problems have also been identified:
~ 1.
Some C-H push button switches stick when an attempt is made to depress the switch mechanism.
2.
Another failure mode was found with push button switch HS-271Bl. 'he switch auto and manual mode functions do not indicate proper operation.
When the manual mode is exercised, the manual switch legend floats at the same height as the auto mode, thereby giying the operator a false indica-tion of the switch position.
The Commission will be advised of PP&L's assessment of the reportability of all conditions by November ll, 1979.
Very truly yours,
~fw N
C s
Vice President-Engineering
& Construction PENNSYLVANIA POWER 8
LIGHT COMPANY
> 9 1 0 1 8 II 2. +'Q
Mr. Boyca H. Grier October 11, 1979 ARS:mcb cc:
Mr. Robert M. Ga'llo U. S. Nuclear Regulatory Commission P.
O. Box 52'hickshinny, Pennsylvania 18655 Mr. G. McDonald Office of Management Xnformation 6 Program Control U. S. Nuclear Regulatory Commission Washington, D.C.
20555 Mr. Victor Stello (15)
Director Office of inspection
& Enforcement U. 'S. Nuclear Regulatory Commission Washington, D.C.
20555