ML19350E234

Updated LER 80-035/03X-1:on 800911,control Room & Computer Room Smoke Detectors Were Out of Svc for 13 Months W/O Util Notifying NRC About Plans to Restore Operability.Caused by Requirement Being Overlooked by Station Fire Marshall

ML19350E234
Person / Time
Site:	Dresden
Issue date:	06/05/1981
From:	Farrar D COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19350E233	List: ML19350E232 ML19350E234
References
LER-80-035-03X, LER-80-35-3X, NUDOCS 8106170187
Download: ML19350E234 (2)

Text

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EVENT DESCRIPTION AND MoSA8LE CONSEQUENCES h

'Q l During a recenE Quality Assurance Audit, it was discovered that the Control Room and I r.uss l Computer Room smoke detectors had been out of service for 13 months without notifying I ,

gl the NRC about plans to restore their operability as required by T.S. 3.12.A.2.b. Be- l g g cause' Control Room is continuously manned, and HVAC System is shared, smoke in either l 1016 l l area would be promptly detected and fire inspection required by T.S. 3.12.A.2.a was l

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CAusE DESCRIPTION AND CORRECTIVE ACTICNs h liiol l The smoke iltectors were removed in order to install a modification to provide an up- I gl graded system of smoke detectors, but T.S. 3.12. A. 2.b. ret.orting recuirement was over- I gl looked by the Station Fire Marstal. A Deviation Report and LER were preoared to satis-l yl fy Tech. Spec. LCO. In addition, testing of new detectors was expedited.to preve theirl

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' During an audit by an offsite Commonvaalth Edison Quality Assurance inspector, it was discovered that tua three Control Room and Computer Room amoke detectors listed in Technical Specification Table 3.12-1 had been removed from service for thirteen months without submitting the thirty day report to the NRC as required by Technical Specification 3.12.A.2.b. When the reporting requirement was rea Lized, a deviation '

i report was immediately written and an LER was submiated as required within thirty days.

The three smoke detectors were permanently removed from existing ,

ventilation ducts as part of the fire suppression, ventilation, and fire '

detection modifications to substantially upgrade the station 4s fire protection system. These three detectors were replaced by forty nine new instruments to detect a fire in these areas. The Dresden Fire Marshal had reviewed the new modifications and the need to eliminate the i

three originally installed smoke detectors. His review determ1ned that smoke in either area would be promptly discovered by Control Room personnel l because both rooms share a common air condition.'.ng and air recirculation

system. The Control Roca is continuously occupied, and thus a fire in-spection w.ts provided as required by Technical Specification 3.1.2.A.2.a

, for operation with inoperable smoke detectors. The Fire Marshal overlooked the reporti:.g requirements of Technical Specification 3.12.A.2.b.,

however. Further, his periodic review of the overdue surveillance for these three detectors, as indicated o,n the monthly computerized surveillance

. schedule, did not prompt him to remember the reporting requirement since he felt that all necessary actions had been completed. "hus the detectors i ,

remained out-of+ service without the required report having been made.

! In addition to submitting the thirty day report to the NRC as a l result of the Quality Assurance audit finding, since the installation of the new smoke detectors was nearing completion, the Fire Marshal prepared an expedited testing program for them and they were declared operable within thirty days.

W posed:TechM ca1 Specification changes have been submitted to the NRC to reflect the' installation of the new smoke detectors, and no further correcr.ive action is necessary m-,.. -g-e3.-~-. .,-ni,. m.,wa-2---.,ey- - , - , . -g. .,.,i,,.y .__.--,%.m. qmy,m.,.,y%_.-.m,p,,,..g3-gm,,w.9 _ . . 9,m .

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