ML20153G526

Special Rept:On 880729,fire Barrier Penetration Seals Inoperable for More than 7 Days During Plant Mod.Fire Watch Patrol Initiated within 1 H After Discovery of Inoperable Barrier

ML20153G526
Person / Time
Site:	Fort Calhoun
Issue date:	09/02/1988
From:	Morris K OMAHA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
LIC-88-613, NUDOCS 8809080193
Download: ML20153G526 (2)

Text

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l Omaha Pubilc Power District 1623 Harney Omaha, Nebraska 68102 2247 402/536 4000 September 2, 1988 LIC-88 713 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Mail Station PI-137 Washington, DC 20555

Reference:

Docket No. 50 285 Gentlemen:

SUBJECT:

Special Report on Inoperability of Fire Barrier The Omaha Public Power District, holder of Operating License DPR-40, submits tnis special report pursuant to the requirements of Fort Calhoun Station Unit No. 1 Technical Specification 2.19, "Fire Protection System," and Technical Specification 5.9.3, "Special Reports."

Fort Calhoun Station Unit No. 1 Technical Specification Section 2.19(7) requires that all penetration fire barriers protecting safety-related areas shall be functional (intact). When a penetration fire barrier is nonfunc-tional, within one hour OPPD must either establish a continuous firewatch on at least one side of the affected penetration, or verify the operability of fire detectors on at least one side of the penetration and establish an hourly firewatch patrol. Restoration of the nonfunctional penetration to functional status must be completed within seven days, or OPPD eust prepare and submit a report within an additional thirty days to the Nuclear Regulatory Commission.

During a plant modification which involved cable routing, firt- barrier penetration seals 56W-W-1 and 69-F-187 were rendered inoperable on July 29, 1988, and August 1, 1988, respectively. Af ter verifying fire detector operability, an hourly firewatch patrol was initiated within one hour arter the discovery ef the inoperable barriers. Due to the extent of the cable routing operation, the penetration seals could not be restored to operable status until August 10, 1988.

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U. S. Nuclear Regulatory Commission LIC-88-713 Page Two No follow up notification is planned since the barrier is now intact. This report is being issited within the 30 day limit specified in Technical Specification 2.19(i).

Sincerely,

/,

K.[J.

yars rris Division Manager Nuclear Operations KJM:rge c: LeBoeuf, Lamb, Leiby & MacRae 1333 New Hampshire Ave., N.W.

Washington, DC 20036 R. D. Martin, NRC Regional Administrator P. D. Milano, NRC Project Manager P. H. Harrell, NRC Senior Resident Inspector A. J. Mechtenberg