ML20249A021
| ML20249A021 | |
| Person / Time | |
|---|---|
| Site: | Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png |
| Issue date: | 01/27/1978 |
| From: | Klingler G, Nolan F, Sniezek J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| References | |
| PNO-78-017, PNO-78-17, NUDOCS 9806150325 | |
| Download: ML20249A021 (1) | |
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l PRELIMINARY NOTIFICATION s
Q9m= January 27, 1978 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE--PNO:
This preliminary notification constitutes EARLY notice of an event of ,
POSSIBLE safety or public interest significance. The information presented is as initially received without verification or evaluation and is basically all that is known by IE staff on this date. i Facility: Connecticut Yankee Atomic Power Company l
I Haddam Neck Plant (DN 50-213) !
Haddam Neck, Connecticut
Subject:
SHUTDOWN FOR REPL*sCEMENT OF TERMINAL BLOCKS Haddam Neck Plant is planning a shutdown commencing this evening (January 27,1978) to replace 48 terminal blocks located inside the I containment which are necessary for the operation of certain safety related equipment, and to also balance the main turbine.
- Recent tests conducted indicate that these terminal blocks (a type of .
electrical connector) are incapable of performing satisfact,orily in the high temperature / humidity environment following a loss of coolant accident. pr.a <
, E:1..
The shutdown is expected to last 24-36 hours. >
(- Media interest is expected because of the extensive interast in environ-lQ mental qualification of safety related electrical connectors. The State of Connecticut has been informed. A press release is planned by the ' /
i' licensee. NRC Region I is considering a press release. i 6
NRC, Region I, (Philadelphia) received notification of this occurrence 4, by telephone from Haddam Neck Plant Superintendent on January 27, 1978, n at 9:10 a.m.
Q
Contact:
GKlingler, IE x28019 FNolan, IE x28019 JSniezek, IE x28019 Distribution: Transmitted H St /.* A d Chairman Hendrie Commissioner Bradford Commissioner Kennedy S. J. Chilk, SECY C. C. Kammerer, CA Commissioner Gilinsky (ForDistribution)
Transmitted: MNBB //M P Bldg /.* 2- E. Volgenau L. V. 1iossick, EDO ' E. G. Case, NRR Region I , IE/ .' d-
R. Hartfield, MIPC C. V. Smith, NMSS T. J. McTiernan, 0IA R. G. Ryan, OSP R. Minogue, SD H. K. Shapar, ELD
, , PRELIMINARY NOTIFICATION