ML20202D338

Special Rept:On 860525,fire Barrier Between Fire Areas 36A & 36B Rendered Inoperable.Caused by Opening Steel Rollup Doors to Compensate for Failed Switchgear Air Conditioning Unit for Fire Area 36A.Repair Completed on 860609 & Doors Closed

ML20202D338
Person / Time
Site:	Fort Calhoun
Issue date:	06/30/1986
From:	Andrews R OMAHA PUBLIC POWER DISTRICT
To:	Martin R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
LIC-86-300, NUDOCS 8607140104
Download: ML20202D338 (2)

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Omaha Public Power District 1623 Harney Omaha. Nebraska 68102 2247 M, L_g g 7 402/536-4000 ____. gk j pt June 30, 1986 LIC-86-300 M'M UO t am . .

h Mr. Robert D. Martin Regival Administrator U.S. clear Regulatory Commission Regio IV 311 R. ' Plaza Drive, Suite 1000 Arlings Tx. 76011

Reference:

Docket No. 50-285 l

Dear Mr. Martin:

Special Report on Inoperability of Fire Barrier The Omaha Public Power District, holder of Operating License DPR 40, submits this special report pursuant to the requirements of Fort Calhoun Station Unit No. 1 Technical Specification Section 2.19, " Fire Protection System".

Fort Calhoun Station Unit No.1 Technical Specification 2.19(7) requires that all penetration fire barriers protecting safety-related areas shall be functional (intact). With a penetration fire barrier nonfunctional, within one heur, either a continuous firewatch must be established on at least one side of the affected penetration, or the operability of fire detectors on at least one side of the penetration must be verified and an hourly firewatch patrol established. If 'the nonfunctional penetration is not restored to functional status within seven days, a report must be prepared and submitted within an additional 30 days to the Nuclear Regulatory Commission. This report is being submitted pursuant to Technical Specification 5.9.3.

j On May 25, 1986, the fire barrier separating fire areas 36A and 36B was rendered inoperable by openina some of the steel roll-up doors to compensate I for a failed switchgear air conditioning unit to fire area 36A (east switchgear room). An hourly firewatch patrol was established for the fire areas affected. Maintenance Order 862041 was issued to repair the air conditioning unit, however, the repairs were not completed within seven days. The repair work was completed by June 9, 1986; 15 days after the initial inoperability of the fire barrier. The roll-up doors were closed and the fire barrier returned to operable status. .

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Mr. Robert C. Martin LIC-86-300 j Page 2 The hourly firewatch patrol was then terminated. This report is being issued within the 30 day limit specified in Technical Specification 2.19(7); no further action is required.

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, Sincerely,

) :Qs R. L. Andrews

, Division Manager Nuclear Production RLA/WGG/me cc: LeBoeuf, Lamb, Leiby & MacRae 1333 New Hampshire Ave.. N.W.

i Washington, DC 20036 Mr. D. E. Stils, NRC Project Manager Mr. P. H. Harrell, NRC Senior Resident Inspector T. J. McIvor i R. J. Mueller J. E. Lechner 6

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