ML19224D551

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Forwards LER 79-020/01T-0
ML19224D551
Person / Time
Site: Peach Bottom Constellation icon.png
Issue date: 07/06/1979
From: Cooney M
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To: Grier R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19224D552 List:
References
NUDOCS 7907120592
Download: ML19224D551 (3)


Text

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P PHILAD ELPHIA ELECTRIC COM PANY 2301 M ARKET STREET P.O. BOX 8699 PHILADELPHIA PA.19101 (21518414000 July 6, 1979 Mr. Boyce H. Grier, Director Office of Inspection and Enforcement Region I United States Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406 Ocar Mr. Grier:

SUBJECT:

Licensee Event Report Narrative Description The following occurrence was reported to Mr. Gage, Region I, Office of Inspection and Enforcement on June 21, 1979.

Refereace: Docket Number 50-278 Report No: LER 3-79-20/IT Report Date: July 6, 1979 Occurrence Date: June 21, 1979 Facility: Peach Bottom Attaic Power Station R.D. 1, D.lta, PA 17314 Technical Specification

Reference:

The applicable Technical Specification is 3.8.C.I.

Description o f, the Event:

On 6/21/79 at approximately 11:05 AM, the Unit 3 reactcr as removed from service due to the loss of the offgas recombiner system. P rina ry coolant pressure was reduced to approximately 500 psig while recovery operations were in progress. Startup check lists were completed and rod withdrawal was initiated.

Repairs were made to the recombiner system.

At approximately 4:50 PM, startup operations were initiated to establish condenser vacuum conditions in accordance with procedures. The startup vacuum pump was started at this time.

At 4: 58 PM, the main off-gas stack radiation monitor started to show an increased release rate. The startup vacuum pump was u

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