ML20091C199
| ML20091C199 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 03/27/1992 |
| From: | Joshua Wilson TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| 92-03, 92-3, NUDOCS 9204030115 | |
| Download: ML20091C199 (3) | |
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1-nneme vaw Aunow em ona R. wt sxu,m tenn.%ee em J L Whon v,co rn.somt Sau;pwmm nant March 27, 1992 U.S. Nuclear Regulator) Commission ATTN: Document Control Desk Washington, D.C.
20555 Gentlemen:
In the Matter of
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Docket No. 50-328 Tennessee Valley ~ Authority
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SEQUOYAll NUCLEAR PLANT (SQN) - UNIT 2 - FACILITY OPERATING LICENSE DPR SPECIAL REPORT 92-03 The enclosed special report provides details concerning a fire barrier being nonfunctional for a period greater than seven days. This event is reported in accccdance with Action Statement (a) of Limiting Condition-for Operation 3.7.12.
If you have any'qe Jtions concerning this submittal, please telephone M. A. Cooper at (615) 843-8422.
Sincerely, b
.5 W L. kilson Enclosure L
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l 0300?3 9204030115 920328 dh PDR ADOCK 05000328 9
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U.S. Nuclear Regulatory Commission Page 2 March 27. 1992 cc (Enclosure):
Mr. D. E. LaBarde Project Manager U.S. Nuclear Regulatory Commission One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852 NRC Resident Inspector Sequoyah Nuclear Plant 2600 Igon Ferry Road Soddy-Daisy, Tennessee 37379 Mr.-B. A. Wilson, Project Chief U.S. Nuclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 l
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_ Enclosure FEQUOYAH NUCLEAR PLANT SPECIAL REPORT 92-03 Description of Event On February 27, 1992, with Units 1 and 2 operating in Mode 1, it was determined that fire barrier penetration 4A-2T821 was nonfunctional for a
- period of greater than seven days. The penetration is on Elevation 759 of the auxiliary building, serving the Unit 2 control rod drive mechanism control panel room. On February 20, 1992, at 0945 Eastern standard time (EST), a fire barrier breach was issued to allow installation of a conduit through the fire berrier.. The operability of the fire detectors on one side of the fire barrier was verified and an hourly, fire watch patrol was established as required by Limiting Condition for Operation 3.7.12 Action Statement (a).
l The roving fire watch remained in effect until the fire barrier breach was restored to a functional status.
The fire barrier breach was returned to I
operable status on February 27, 1992, at 1705 EST.
Cause of Event
- The cause;of the fire barrier breach not being returned to functional status within the seven-day timeframe was because of personnel failing to follow
- procedures. The individual involved misunderstood the requirement that the breach must be closed within seven, 24-hour periods. The individual believed he had until the end of the seventh day to restore the breach to functional
- status.
Corrective Action The fire barrier was restored, a visual inspection was performed, and the penetration was-returned to functional status on 5:brtery 27, 1992. The individual involved was counseled on the event and informed of -the l
requirements:of the proceaure.
Also, this event was discussed with other appropriate Modifications personnel.
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