05000339/LER-1980-056-03, /03L-0:on 800917,during Routine Containment Exit, Outer Door on Personnel Hatch Did Not Close Properly.Caused by Misalignment.Door Adjusted & Test Performed to Verify That Air Lock Leakage Rate Was within Acceptable Limits

/03L-0:on 800917,during Routine Containment Exit, Outer Door on Personnel Hatch Did Not Close Properly.Caused by Misalignment.Door Adjusted & Test Performed to Verify That Air Lock Leakage Rate Was within Acceptable Limits

ML19338E851
Person / Time
Site:	North Anna
Issue date:	10/01/1980
From:	Cartwright W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19338E843	List: 05000339/LER-1980-056, Forwards LER 80-056/03L-0 05000339/LER-1980-056-03, /03L-0:on 800917,during Routine Containment Exit, Outer Door on Personnel Hatch Did Not Close Properly.Caused by Misalignment.Door Adjusted & Test Performed to Verify That Air Lock Leakage Rate Was within Acceptable Limits
References
LER-80-056-03L-02, LER-80-56-3L-2, NUDOCS 8010060231
Download: ML19338E851 (2)

LER-1980-056, /03L-0:on 800917,during Routine Containment Exit, Outer Door on Personnel Hatch Did Not Close Properly.Caused by Misalignment.Door Adjusted & Test Performed to Verify That Air Lock Leakage Rate Was within Acceptable Limits

Event date:
Report date:
3391980056R03 - NRC Website

text

M U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL BLOCK / / / / / / / (1)

(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

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/V/A/N/A/S/2/ (2)

/0/0/-/0/0/0/0/0/-/0/0/ (3)

/4/1/1/1[1 (4)

/ / / (5)

LICENSEE CODE LICENSE NUMBER LICENSE ITPE CAf

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/L/ (6)

/0/5/0/0/0/3/3/9/ (7)

/0/9/1/7/8/0/ (8) /1/ d d 1/ a/ of (9)

E DOCKET NUMBER EVENT DATE REPORT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES (10)-

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On September 17, 1980 during a routine containment exit the outer door on the /

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peraonnel hatch did not close properly. Since the operable (inner) air lock

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door was kept closed, and the inoperable door was repaired and returned to an /

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operable status within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, as specified by T.S. 3.6.1.3, the health

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and safety of the public were not affected. Reportable pursuant to 6.9.1.9.b. /

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SYSTEM

CAUSE

CAUSE COMP.

VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCC7E

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/S/A/ (11) /E/ (12) /B/ (13) /P/E/N/E/T/R/ (14) [A/ (15) g/ (16)

SEQUENTIAL OCCURRENCE REFORT REVISION LER/R0 EVENT YEAR REPORT NO.

CODE TYPE NO.

(17) REPORT NUMBER

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/L/

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ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPRD-4 PRIME COMP. COMPONENT TAKEN ACTION ON PLANT METHOD HOURS SUBMITTED FORM SUB. SUPPLIER MANUFACTURER

/E/ (18) /Z/ (19) /Z/ (20) /Z/ (21) /0/0/0/0/ (22) g/ (23) /N/ (24) /X/ (25) /C/3/1/0/ (26)

CAUSE DESCRIPTION AND CORRECTIVE ACTIONS (27)

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The air lock door did not close properly because it was slightly misaligned.

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Corrective action was to adjust the door. A test was performed by procedure

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to verify that the air lock leakage rate was within acceptable limits.

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FACILITY METHOD OF STATUS

% POWER OTHER STATUS DISCOVERY DESCRIPTION (32)

/ (30) DISCOVERY

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/Bf (28)

/0/5/0/ (29) /

NA

/A/ (31)

/ Routine Containment Exit /

ACTIVITY CONTENT l

RELEASED OF RELEASE AMOUNT OF ACTIVITY (35)

LOCATION OF RELEASE (36) l

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LZf (33)

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NA

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NA

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PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION (39)

/1/7/ /0/0/0/ (37) /Z[ (38) /

NA

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PERSONNEL INJURIES l

NUMBER DESCRIPTION (41)

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NA

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LOSS OF OR DAMAGE TO FACILITY @3)

TYPE

DESCRIPTION

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NA

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t PUBLICITY ISSUED DESCRIPTION (45)

NRC USE ONLY

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NA

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NAME OF PREPARER W. R. CARTWRIGHT PHONE (703) 894-5151

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• W.

... s Virginia Electric and Power Company North Anna Power Station, Unit 2 Attachment: Page 1 of 4 Docker No. 50-339 Report No. LER 80-056/03L-0

Description of Event

On September 17, 1980 during a routinc containment exit the outer door on the personnel hatch did not close properly.

Probable Consequences of Occurrence Since the operable air lock door was kept closed, and the inoperable door was repaired and returned to an operable status within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> as specified by T.S. 3.6.1.3, the health and safety of the public were not affected.

Cause of Event

The air lock door did not close properly because it was slightly misaligned.

Immediate Corrective Action

The corrective action taken was to adjust the door. A test was performed by procedure (PT-62.4) to verify that the air lock leakage rate was within acceptable limits.

Scheduled Corrective Action No further actions are required.

Actions Taken to Prevent Reccurrence No actions are required to prevent recurrence.

Generic Implications There are no generic implications.

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