05000335/LER-1981-039, Updated LER 81-039/03L-1:on 810802,during Power Operation, PORV Block Valve MV1403 Would Not Close.Caused by Loose Electrical Connection on Valve Limit Switch.Connection Tightened During Oct 1981 refueling.W/840319 Ltr

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Updated LER 81-039/03L-1:on 810802,during Power Operation, PORV Block Valve MV1403 Would Not Close.Caused by Loose Electrical Connection on Valve Limit Switch.Connection Tightened During Oct 1981 refueling.W/840319 Ltr
ML20087J048
Person / Time
Site: Saint Lucie NextEra Energy icon.png
Issue date: 03/19/1984
From: Rotella T, Williams J
FLORIDA POWER & LIGHT CO.
To:
NRC OFFICE OF ADMINISTRATION (ADM)
References
LER-81-039-03L, LER-81-39-3L, PNS-LI-84-80, NUDOCS 8403220070
Download: ML20087J048 (2)


LER-2081-039, Updated LER 81-039/03L-1:on 810802,during Power Operation, PORV Block Valve MV1403 Would Not Close.Caused by Loose Electrical Connection on Valve Limit Switch.Connection Tightened During Oct 1981 refueling.W/840319 Ltr
Event date:
Report date:
3352081039R00 - NRC Website

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io e ;i ;During power operation, a routine surveillance showed that PORV block f A 1 valve MV1403 unu1d nne eine.- W1 An1 = . manually closed and deenergized t i, .; sper T.S. 3.4.12. Excessive leakage through the packing of the MV1403 re-1 i 3 i s 1 i sulted in a T.S. change reauest allowine de-enaref rina cha PORV and hack- t

,,n ,iseating MV1403. This request was approved and implemented on Aug. 4. The t io,,,t health and safety of the public was not affected. For previous similar i g , failures of a PORV block valve, see LER's 81-18 and 82-8. I 8 CC E SusC 4 Coasromem? Coot t of rr m Lg.ja_lO LEJ@ LIJG IV I AIL IV l Elf !@ us 3

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8403220070 840319 gDRADOCK 05000335

FLORIDA POWER & LIGHT COMPANY PNS-LI-84-80 March 19,1984 U.S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555 Gentlemen: l Re: Reportable Event 81-39 St. Lucie Unit 1 Date of Event: August 2,1981 PORV Block Valve MV1403 (Revision 1)

This report is submitted to update our initial report dated August 31, 1981.

f Very truly yours, Jhld! u <

J.W. Williams, Jr.

Vice President Nuclear Energy JWW/PLP/cas cc: J.P. O'Reilly, Region II, USNRC Harold F. Reis, Esquire File 933.1

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