PNO-I-86-008, on 860124,unit Scrammed from 95% Power After Diesel Generator E-2 Tripped When Loaded W/Certain Emergency Buses.Caused by Mechanical Failure of Scavenging Air Blower. Addl Damage Caused by Debris

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PNO-I-86-008:on 860124,unit Scrammed from 95% Power After Diesel Generator E-2 Tripped When Loaded W/Certain Emergency Buses.Caused by Mechanical Failure of Scavenging Air Blower. Addl Damage Caused by Debris
ML20198H469
Person / Time
Site: Peach Bottom Constellation icon.png
Issue date: 01/27/1986
From: Gallo R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:
References
PNO-I-86-008, PNO-I-86-8, NUDOCS 8601310038
Download: ML20198H469 (1)


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i DCS No: 50277860127 Date: January 27, 19T26 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE ,-PNO-I-86-8 This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance. The information is as initially received without vsrification or evaluation, and is basically all that is known by the Region I staff on this date.

Facility: Philadelphia Electric Company Licensee Emergency Classification:

Peach Bottom, Unit 2 Notification of Unusual Event DN 50-277 Alert Site Area Emergency General Emergency X Not Applicable

Subject:

UNSCHECULED SHUTDOWN FOR MORE THAN 48 HOURS Unit 2 ' scrammed from 95*; power on January 24, 1986 after the E-2 diesel generator (DG) tripped when loaded with certain emergency buses (reference daily report of January 24).

Licsnsee investigation has determired that the DG trip was due to a mechanical failure of the scavenging air blower. Debris from the blower caused additional damage and the licensee estimates that the necessary repair activities will take approximately seven days. Additional details may be found in the January 27 morning report. Unit 2 will remain in cold shutdown until the E-2 DG is operable.

The Commonwealth of Pennsylvania has been notified.

CONTACT: R. Gallo 488-1234 DISTRIBUTION:

H. St. MNBB Phillips E/W Willste Mail: ADM:DMB Chairman Palladino EDO NRR IE NMSS DOT:Trans only Comm. Zech PA OIA RES Comm. Bernthal ELD AE00 Comm. Roberts Comm. Asselstine ACRS Air Rights INP0 7:q r SECY SP NSAC U CA POR Regional Offices TMI Resident Section # 95 RI Resident Office "Jo Licensee:

(Reactor Licensees)

Region I Form 83 (Ruv. July,1984) roOIUjy38060127 PNo'I-86-OO8 pg L