05000277/LER-1979-006-01, /01T-0 on 790130:recirculation Motor Generator Set Room Fire Detection Sys (Smoke Detectors) Disabled for Mod Work & Not Restored When Work Completed.Caused by Personnel Error.Sys Restored to Svc Upon Discovery

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/01T-0 on 790130:recirculation Motor Generator Set Room Fire Detection Sys (Smoke Detectors) Disabled for Mod Work & Not Restored When Work Completed.Caused by Personnel Error.Sys Restored to Svc Upon Discovery
ML19261B603
Person / Time
Site: Peach Bottom Constellation icon.png
Issue date: 02/14/1979
From: Cooney M
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19261B601 List:
References
LER-79-006-01T, LER-79-6-1T, NUDOCS 7902280260
Download: ML19261B603 (1)


LER-1979-006, /01T-0 on 790130:recirculation Motor Generator Set Room Fire Detection Sys (Smoke Detectors) Disabled for Mod Work & Not Restored When Work Completed.Caused by Personnel Error.Sys Restored to Svc Upon Discovery
Event date:
Report date:
2771979006R01 - NRC Website

text

U S NUcL L,4tt es t uus e s 5 0HM 366 LICENSEE EVEN T REPORT Report No. 2-79-004/OlT ll Unit 2 CONTROL 8 LOCK. l l

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. EVENT DESCRIPTION ANO PROBABLE CONSEQUENCES h l

Recirc MG set roco fire detection cys. on both units was disabled early El l

cn 1/30/79 to pe mit codification work in the area. A fire watch was es-El l

tablished. Following completion of the work about 8 hr. later.the work 4

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group failed to notify the shift that they were finished, and the watch

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was teminated. Later on the same shift,the operator noticed the error 6

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detecticn sys. to normal. Safety significance of the event is minical.

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