ML20086D623

AO 73-32:on 731120,during Monthly HPCI Sys Pump Operability Surveillance Test,Both Gaskets on Gland Seal Exhaust Condenser Failed.Cooler Repaired & HPCI Tested & Verified Operable

ML20086D623
Person / Time
Site:	Vermont Yankee
Issue date:	11/20/1973
From:	Riley B VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20086D625	List: ML20086D623 ML20086D627
References
AO-73-32, VYV-3078, NUDOCS 8312020425
Download: ML20086D623 (2)

Text

. O O

, VERMONT YANKEE NUCLEAR POWMR CORPORATION SEVENTY SCVEN OROVE STRECT RUTLAND, YEIO10NT 03701 REPLY TO: (

VYV-3078

p. o. Box 157 VERNON, VERMONT o5354 November 20, 1973 United States Atomic Energy Commission Directorate of Regulatory Operations, Region I 631 Park Avenue King of Prussia, Pennsylvania 19406

REFERENCE:

Operating License DPR-28 Docket No. 50-271 Abnormal Occurrence No. A0-73-32 -

Gentlemen:

As defined by Technical Specifications for the Vermont Yankee Nuclear Power Station, Section 6.7.B.1, we are reporting the following Abnormal Occurrence as A0-73-32 and confirming our conversation with your inspecto,r.

On November 20, 1973, at 0620, during conduct of the monthly High Pressare. Coolant Injection (HPCI) System pump operability surveillance test, both gaskets on the gland seal exhaust condenser failed. This cooler is required for proper operation of the HPCI system and its loss precludes the HPCI operability required by Section 3.5.E.1.a of the Technical Specifications. The reactor was operating at approximately 62% power at the time of this incident.

Replacement of the failed gaskets was initiated immediately.

Concurrently, the operability verification required by Section 4.5.E.2

. of Technical Specifications was begun.

The cooler was repaired and HPCI was tested and verified operable at 0945.

Very truly yours, VERMONT YANKEE NUCLEAR POWER CORPORATION Q

B.W. Riley Plant Superintendent WFC/kbd d L',

J 9312O20425}3 20 t

,t q PDR ADOCK PDR f, S ,  :' (4 F

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i 5" *" oowt t'"*- For coacu"*aa- F a' *"'oa-MEMO ROUTE SLIP _

rorm Ai r-95 i n .. M., i 4. i v i ? > A t tu o2 4o Net...are,orn ror ,ica.to,.. S.' X rer vero,- ,ioe.

To (Name anJ uan) imnia RtMARns VERMONT YANKEE NUCLEAR PORER CORPORATIOr RO Chief. FS6EB RO:HQ (5) DN 50-271 8"'E RO Files s.  :

Central Mail & Files A0 73-32 Rannintorv senndards (3)

To m.m..newno .mnus REM. Ras Directorate of The above abnormal occurrence is forwarded Licensing (13)

OGC DATE for information. Distribution will be made Regional Directors (Rn T T . TTT. TVT by this office to the PDR, Local PDR, NSIC, Td (Name ana unit) INTIALS REMARK $

DTIE, and' State Representatives.

DATE FRO (Name ud unst) REM ARKS

[/. 0 && -

W. J. Brunner Region I ,

PHONE 84 DATE 8-337-1246 12/4/73 USE OTHER SIDE FOR AD&4TIONAL REMARK $ CFO t 1,18 0 445-43 a e

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