05000260/LER-1981-025-03, /03L-0:on 810526,equipment Airlock Doors 235 & 236 Were Opened Simultaneously,Breaching Secondary Containment. Caused by Failed Electric Strike on Door 236.Electric Strike Solenoid Replaced

/03L-0:on 810526,equipment Airlock Doors 235 & 236 Were Opened Simultaneously,Breaching Secondary Containment. Caused by Failed Electric Strike on Door 236.Electric Strike Solenoid Replaced

ML19350F129
Person / Time
Site:	Browns Ferry
Issue date:	06/17/1981
From:	TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19350F128	List: 05000260/LER-1981-025, Forwards LER 81-025/03L-0 05000260/LER-1981-025-03, /03L-0:on 810526,equipment Airlock Doors 235 & 236 Were Opened Simultaneously,Breaching Secondary Containment. Caused by Failed Electric Strike on Door 236.Electric Strike Solenoid Replaced
References
LER-81-025-03L-01, LER-81-25-3L-1, NUDOCS 8106240248
Download: ML19350F129 (2)

LER-1981-025, /03L-0:on 810526,equipment Airlock Doors 235 & 236 Were Opened Simultaneously,Breaching Secondary Containment. Caused by Failed Electric Strike on Door 236.Electric Strike Solenoid Replaced

Event date:
Report date:
2601981025R03 - NRC Website

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6/04/81 LF.R SUPPLEMENTA!. INFORMNIION RF110-fri, 260 / 81025 Technical Specification involved 3.7.C.!

6/25/81 Reported !!nder Technical specification. 6.7.2.b(4)

• Date due NRc:

Date,f Occurrence 5/26/81 Time of Occurrence 0820 Unit 2 (dentification and Descript;on of Occurrence:

Ouring EMI-8, equipment airlock doors 235 and 236 were opened at:::ultaneously.

Conditions Prio_r to Occurrence:

Unit I refueling Unit 2 at 99%

t.n.it 3 at 42%

Action specified in the Technical Specification Surveillance Requiremants met i

@te,to inoperable mitf pment. Desc ribe.

Immediately closed doors to reestablish containment as required in T.S. 3.7.C.1, replaced the solenoid.

Apgagnt Cause of Oce_urrence:

u Electric strike on door 236 failed allowing doors 235 and 236 to be opened simultaneou:1y. Failure was an'open solenoid coil.

Analysis of Occurrence.

There was no danger to the health or safety of the public, no release of activity, no damage to the plant or equipment, and no resulting significant chain of events.

Corrective Action

Solenoid replaced, successfully tested, and returned to service. This is considered a random failure and no further recurrence control is required.

' l ailure Data:

None H e r e.. < ion :

Per' d - Lifetime; Respcnsibility - Documcut Control Supervisor

• Revision :

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