ML20054A850

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LER 82-030-03L-0:on 820303,during Mode 3 Operation,One Auxiliary Feedwater Automatic Control Valve Controller 2-LIC-3-173 Inoperable.Caused by Open Loop Due to Loose Connection at Controller.Connection Tightened
ML20054A850
Person / Time
Site: Sequoyah Tennessee Valley Authority icon.png
Issue date: 03/31/1982
From: Harding M, Rogers H
TENNESSEE VALLEY AUTHORITY
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20054A843 List:
References
82-030-03L, 82-30-3L, NUDOCS 8204160202
Download: ML20054A850 (1)


Text

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lolil l 2,. S 60 G8 DO;K E T NuvoE H 68 63 EVENT DATE 34 JS PEPORT DAT E Bo EVENT DESCRfPTf 0N AND PnOD AOLE CONSECUENCES h Ioi2i !.__Mith_unie 2 in mode 3 (0% power, 450 degrees F) at 1115 CST on 03/03/82, one auxiliary ,

lo lai I feedwater automatic control valve level controller (2-LIC-3-173) was declared ,

lo i4 I l inoperable due to'failing low. This event placed the unit in action statement (a) of ;

o s l Lc0 3.7.1.2. There was no effect upon public health and safety. Previous occurrence y

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li jo l l Upon investigation, an open loop was'found, caused by a loose connection at the )

controller. The connection was tightened and loop output verified. The level  ;

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,g] controller was returned to service on 03-03-82. A review was made of previous work on P.

L this loop and there was no apparent _cause found for the loose connection. All similar

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  • I [ connections on this loop were verified to be tight and no further action is planned.

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