ML18139A173

Ro:While Conducting PT 25.12,pump 1-FP-P2 in Fire Protection Sys Failed to Meet Acceptance Criteria of 250 Ft at 2500 Gallons Per Minute.Cause Not Determined.Vendor Will Participate in Insp.Local Fire Depts Will Supply Assistance

ML18139A173
Person / Time
Site:	Surry
Issue date:	04/22/1980
From:	Sylvia B VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
References
370, NUDOCS 8004250371
Download: ML18139A173 (1)

Text

VIRGINIA ELECTRIC AND PowER CoM:PANY RICHMOND,VIRGINIA 23261 April 22, 1980 Mr. Darrel G. Eisenhut, Acting Director Serial No. 370 Division of Operating Reactors PO/RMT:baw Office of Nuclear Reactor Regulation Docket Nos: 50-280 U. S. Nuclear Regulatory Commission 50-281 Washington, D. C. 20555 License Nos: DPR-32 DPR-37

Dear Mr. Eisenhut:

This letter report is furnished in accordance with the provisions of Surry Power Station Technical Specification 6.6.4.b.

While conducting PT 25.12 which is designed to demonstrate the operability and performance of th~ pumps in the fire protection system, it was discovered that l-FP-P2 failed to meet the acceptance criteria of 250 feet at 2500 g.p.m.

Although the pump is operable in a degraded condition this event is contrary to Technical Specification 4.18.B.1.f(2).

In order to identify the problem, the pump was inspected and it was determined that the clearances were satisfactory, the pump and prime mover are mechanically operable, the automatic functions operate properly, and all instrumentation was checked, calibrated and determined to be normal.

Since these efforts did not ascertain the problem, the vendor has been requested to participate in a more in depth inspection.

Despite the degradation of this system with its 4% loss of discharge head, it is believed that with the redundant system operating as specified, the fire protection of the station is still maintained.

As an additional precaution the local Fire Departments have been contacted and have agreed to supply assistance on a short notice if required.

Very truly yours,

./.~

R. Sylvia nager-Nuclear Operations and Maintenance cc: Mr. James P. O'Reilly