PNO-V-86-080, on 861113,unit Shut Down to Correct Lube Oil Leak on Inboard Motor Bearing of West Main Feed Pump. Leakage Was Through Labyrinth Seal Associated W/Bearing. Bearing Seal Disassembled for Evaluation

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PNO-V-86-080:on 861113,unit Shut Down to Correct Lube Oil Leak on Inboard Motor Bearing of West Main Feed Pump. Leakage Was Through Labyrinth Seal Associated W/Bearing. Bearing Seal Disassembled for Evaluation
ML20214D626
Person / Time
Site: San Onofre Southern California Edison icon.png
Issue date: 11/14/1986
From: Huey F, Johnson P
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
To:
References
PNO-V-86-080, PNO-V-86-80, NUDOCS 8611240177
Download: ML20214D626 (1)


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i PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE--PNO-V-86-80 Date: 11/14/86 l

l This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public l intsr:st significance. The information presented is as initially received without verification l

er svaluation and is basically all.that is known by Region V staff on this date.

FACILITY: Southern California Edison Company Licensee Emergency Classification San Onofre Unit 1 Notification of Unusual Event DOCKET NO. 50-206 Alert Site Area Emergency l General Emergency ,

XX Not Applicable  !

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SUBJECT:

SHUTDOWN GREATER THAN 48 HOURS

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i Th2 unit was shut down late on 11/13/86 to correct a lube oil leak identified on the inboard 1 motor bearing of the west main feed pump (also serves as safety injection pump in the-event of a l LOCA). The leakage was through the labyrinth seal associated with the bearing, and allowed cbrut 15 gallons of oil to leak into the motor housing over a 15-20 minute period. The bearing c021 casembly is presently disassembled for evaluation. The licensee also plans to perform eth0r maintenance during the shutdown period. A startup schedule has not yet been established, j l

This informati n is p current as of 8:00 am PST on 11/14/86.

l CONTACT: P gbson R. Huey FTS 4 3-3745 (714) 492-2641 l

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4 DISTRIBUTION H St. MNBB Phillips i' E/W W111ste Air Rights Mail:

Chairman Zech EDO NRR IE NMSS ADM:DMB Comm. Roberts PA i Comm. Asselstine MPA AEOD Comm. Bernthal OCC

, Comm. Carr Regions:

SECY INPO 1GFf NSAC_ e//2.7

~ACRS Licensee:' Sir /

CA (Reactor Licensees) REGION V: FORM 211 PDR Resident Inspector _ (Revised 3/14/83)

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8611240177 861114 \1 PDR lbE 0\

PNO-V-86-080 PDR l

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