05000416/LER-1982-093-03, /03L-0:on 820929,routine Surveillance Procedure 06-OP-1T42-Q-0001 Revealed Fuel Handling Area Vent Supply Isolation Damper Failed to Cycle Closed in Less than 5-s. Caused by Cup Seal Being Stretched Oversize.Seal Repaired

/03L-0:on 820929,routine Surveillance Procedure 06-OP-1T42-Q-0001 Revealed Fuel Handling Area Vent Supply Isolation Damper Failed to Cycle Closed in Less than 5-s. Caused by Cup Seal Being Stretched Oversize.Seal Repaired

ML20027D419
Person / Time
Site:	Grand Gulf
Issue date:	10/28/1982
From:	Chenault W MISSISSIPPI POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20027D415	List: 05000416/LER-1982-093, Forwards LER 82-093/03L-0 05000416/LER-1982-093-03, /03L-0:on 820929,routine Surveillance Procedure 06-OP-1T42-Q-0001 Revealed Fuel Handling Area Vent Supply Isolation Damper Failed to Cycle Closed in Less than 5-s. Caused by Cup Seal Being Stretched Oversize.Seal Repaired
References
LER-82-093-03L, LER-82-93-3L, NUDOCS 8211040270
Download: ML20027D419 (1)

LER-1982-093, /03L-0:on 820929,routine Surveillance Procedure 06-OP-1T42-Q-0001 Revealed Fuel Handling Area Vent Supply Isolation Damper Failed to Cycle Closed in Less than 5-s. Caused by Cup Seal Being Stretched Oversize.Seal Repaired

Event date:
Report date:
4161982093R03 - NRC Website

text

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1 NRC FORM 336 U. S. NUCLEAR REGULATORY COMMISSION

1. 1. l *

• LICENSEE EVENT REPORT Attachment to AECM-82/511 Page 1 of 1 CONTROL BLOCK: l l

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lh M EAST PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6

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8 9 LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE JO 57 car 68 CON 7 S$RC Ql 0 l 5 l 0 l 0 l 0 l 4 l 1 l 6 l@l 0 l 912 l 9 l 812 l@l1 l 0 l 2 l 818 l 2_j@

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8 60 61 DOCKET NUMBER 68 69 EVENf DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h lOl2] lDuring Non-Nuclear Heatup, Routine Surveillance Procedure 06-OP-1T42-0-0001 revealed l O a l the Fuel Handling Area Vent Supply Isolation Damper (Q1T42F0012) failed to cycle l

I l closed in less than 5 seconds (T.S.3.6.6.2).

This had no effect on the health or l

l o 4 l0 lsl l safety of the public and did not constitute a threat to_ plant safety. This event l

l l

O e l1s being reported pursuant to T.S.6.9.1.13.b.

The redundant Fuel Handling Area Vent l

l0l7ll Supply Isolation Damper (Q1T42F0011) in this line was operable.

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E CODE S BC E COMPONEN T CODE SUBCODE SU E

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'O 11 12 13 18 19 20 SEQUENTIAL OCCUR RE NCE REPORT REVISION

_EVENTVEAR REPORT NO.

CODE TYPE N O.

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CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h lilOllUpon investigation, it was found that the cup seal for this isolation damper (Henry l

1 i i lPratt, size 8" air operated butterfly valve. 150 lb) was stretched oversize. The I

i 7 l cup seal was repaired, reinstalled, and the above Surveillance Test satisfactorily l

ITTTl I completed on October 13, 1982. The Action Statements of T.S.3.6.6.2 were satisfied.

l lil411This is a final report.

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8 9 80 ST S

% POWER OTHER STATUS DISCO RY DISCOVERY OF%RIPTION

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ACTIVITY CO TENT l

RELEASE @D OF RELE ASE(Z_j@l AMOUNT OF ACTIVITY LOCATION OF RELEASE W

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8 9 10 11 44 45 80 PERSONNEL EXPOSURES i

NUVBER TYPE

DESCRIPTION

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8 9 11 12 13 80 PERSONNEL INJURIES i

NUMBER DESCRtP T10N l0l0l0 l@l NA l

1 a 7

8 9 11 12 80 LOSS OF OR DAMAGE TO FACILITY TYPE

DESCRIPTION

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W @l 1 9 B211040270 821028 ISSUE @ DESCRIPTION h NRC USE ONW PDR ADOCK 05000416

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