05000321/LER-1979-086-03, /03L-0:on 791027,secondary Containment Violated by Simultaneous Opening of Airlock Doors Between Reactor Bldg & Radwaste Bldg.Caused Y Design Deficiency.Interlocking Scheme Under Review

/03L-0:on 791027,secondary Containment Violated by Simultaneous Opening of Airlock Doors Between Reactor Bldg & Radwaste Bldg.Caused Y Design Deficiency.Interlocking Scheme Under Review

ML19210D148
Person / Time
Site:	Hatch
Issue date:	11/13/1979
From:	Baxley S GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19210D139	List: 05000321/LER-1979-086, Forwards LER 79-086/03L-0 05000321/LER-1979-086-03, /03L-0:on 791027,secondary Containment Violated by Simultaneous Opening of Airlock Doors Between Reactor Bldg & Radwaste Bldg.Caused Y Design Deficiency.Interlocking Scheme Under Review
References
LER-79-086-03L-01, LER-79-86-3L-1, NUDOCS 7911200587
Download: ML19210D148 (1)

LER-1979-086, /03L-0:on 791027,secondary Containment Violated by Simultaneous Opening of Airlock Doors Between Reactor Bldg & Radwaste Bldg.Caused Y Design Deficiency.Interlocking Scheme Under Review

Event date:
Report date:
3211979086R03 - NRC Website

text

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l (PLEASE PRIN's OR TYPE ALL REOUtaEO INTOnMATION) 1 6

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7 8 9 LICENSEE CODE 14 15 LICENSE NUMBEH 25 26 LICENSE TY PE JO 57 C A T 68 CON'T l L l@l 01510101013 I P 11 l@l1 10 l2171719 l@l1 11 l ll 31 719l@

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8 60 61 DOCK E T NUY8ER 68 69 kVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h Io l2 I l During normal plant operation, secondary containment was momentarily violated when l personnel simultaneously opened the reactor building to radwaste building airlock 0

3 l doors.

This event occurred again 10-31-79 when personnel simultaneously opened the l

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lO ls t t reactor building to turbine building airlock doors.

Secondary containment integrity ;

j o is i l was demonstrated per HNP-1-3653 Standby Gas Treatment System Operability Section "G",

i I to comply with Technical Specification 4.7.C.2.

This is a repetitive occurrence; see ;

o 7

LER 79-68 and LER 79-74.

There were no effects on public health or safety.

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9 10 11 12 13 18 19 20 SEQUENTI AL OCCURRENCE REPORT REVISION LER EVENT YEAR REPORT NO.

CODE TYPE NO.

@ sg/RO 17 91 l-101816 l/l 013 l lL l l-l 10 l a

_ 21 22 23 24 26 27 28 29 30 31 32 TAK N A TO ON PLANT TH HOURS 22 S B !T D FOR1 8.

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.33 34 35 36 31 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h ji lO; [ The cause of this event was design deficiency.

The doors were opened simultaneous 1v. I g,jij l The present design of the interlock system will not prevent this.

A review of the I

i l present airlock interlocking scheme is under review as stated in LER 79-68 and LER l

, 2

[ 79-74.

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8 9 80 ST S

% POWER OTHER STATUS blS OV RY DISCOVERY DESCRIPTION I 2 I s ] [_fj@ l 0 l 9 l 3 l@l N/A l

[A_J@l Personnel Observation l

ACTivlTY CO TENT RELEASED OF RELE ASE AMOUNT OF ACTIVITY LOCATION OF RELE ASE li 16 l U @ l ZI@

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7 8 9 10 11 44 45 80 PERSONNEL EXPOSunES NUVSE R TYFE

DESCRIPTION

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PERSONNE L INJURIES DESCniPriON@

t z., [ 7 7, / J Nuvstn 1

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W l 01 0 0l@l N/A 7

8 9 11 12 80 LOSS OF On DAMAGE TO FACILITY lZl@l

'N/A 791120058 7 l

TYPE DE SCRIP TION

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