ML20084E460
| ML20084E460 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 01/03/1970 |
| From: | Platt C ROCHESTER GAS & ELECTRIC CORP. |
| To: | Kirkman R US ATOMIC ENERGY COMMISSION (AEC) |
| Shared Package | |
| ML20084E428 | List: |
| References | |
| NUDOCS 8304150078 | |
| Download: ML20084E460 (1) | |
Text
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n 60$P EST JAN 3 70 PC331 SYC210 SY RHA230 DT NL PDF ROCHESTER NY 3 R W KIRKMAN, DIRECTOR REGION 1 DIVN OF COMR.IANCE USAEC 970 BROAD ST NEWARK NJER THIS IS CCNFIRM MY CONVERSATIm 0F 130 THIS DATE WITH YOUR MR NORMAN MOSLEY IN REGARDS TO VALVES 9M, 9660, 878B, AND SAFETY INJECTION SIGNAL TRAIN B AT GINNA STATION AT 1030 THIS DATE WHLE INSTRUENT AND CCNTROL MEN HAD WE STEAM LINE PRESSURE l
CHAMEL SHUT OFF FOR CALABRATION THEY NOTICED A GASKET LEAKING ON A VALVE IN ANOTHER STEAM LINE PRESSURE CHANEL TEY SECURED
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TE GUARD VALVE ON THAT CHAMEL SO A TWO OUT OF THREE LOW STEAM LINE PRESSURE SAFETY 1NJECTION SIGNAL WAS GENERATED
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AND THE REACTOR TRIPPED, OPERATORS NOTICED THAT TRAIN B SAFETY INECTION SEQUENCE DID NOT OPERATE. INVESTIGATION FOUND DIRTY
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l CCNTACTS ON A ELAY. CONTACTS WERE CLEANED AND PREVIOUS MENTIONED j
CONDITIONS WE RE SIMULATED THIS TIME BOTH TRAINS OF SAFETY I
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INJECTIONS Equ1PMENT OPERATED EXCEPT FOR VALVE-93, v
1 9660, AND 878B. FURTHER INVESTIGATION FOUND ARMS (N STEMS OF l
VALVE 93 AND 9660 WERE NOT HITTING.jITHE LIMIT SWITCHES (VALVES Cf nERE OPERATING PROPEILY) AND THAT THE LIMIT SWITCH CCNTACT' WAS OPEN ON VALVE 878B ARMS ON STEMS OF VALVE 953 AND 9660 C
WERE ADJUSTED AND CONTACTS m VALVE ET88 WERE ADJJSTED AFTER THAT CONTRQ. BOARD INDICATION OF VALVES 93 AND 966VC VAS NORMAL L'
AND VALVE 878B WAS OPERATED PROPERLY SEVEN TIMES, P 0 R C MET AT 130 THIS DATE REVIEWED THE PR05.EM AND CCNCURRED THAT 14 v
E EACTOR COLLD BE RETURNED TO SERVICE CHAN.ES PLATT SUPT GINNA STATION ROCHESTER GAS AND ELECTRIC v
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PDR ADOCK 05000244 S
PDR 130 953 966C 878B B 1030 B 953 966C 878B.95,3 966C 878B 953 a
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