ML18043A381

LER 78-013/01X-1 on 780421:containment Bldg Air Valve Was Opened During Hot Shutdown Resulting in a Breach of Containment Integrity,Caused by Personnel Error.Notice Posted & Personnel Instructed Re Proper Procedures

ML18043A381
Person / Time
Site:	Palisades
Issue date:	01/03/1979
From:	CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML18043A380	List: ML18043A379 ML18043A381
References
LER-78-013-01X, LER-78-13-1X, NUDOCS 7901100179
Download: ML18043A381 (3)

Text

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• UPDATE REPORT PREVIOUS REPORT 5/15/78 Palisades NRC FORM36!i 11-n1 U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL BLOCK: I 1 G) (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6 I M I r I P I A IL I 1 101 o I o I ol o I o I o I o I o I o I o Io 1@14 I 1 I l I l I 1 101 I I © 7 B 9 LICENSEE CODE 14

• LICENSE NUMBER 25 26 LICENSE TYPE 57 CAT SB CON'T WIJ 7 B o 15 I o I o I o I 2 I 515 l(?)I o I 4 12 11 I 7 I 81@ I 011 I o I 3 I 7 I 9 I G) 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES

(,0) []JI] I During performance of CRDM maintenance, the valve supplying service air

• to the containment building was opened in order to provide breathing air to the repairmen.

Opening this valve breached containment integrity (T.S.I l.4a), and since the reactor was in hot shutdown, the LCO of T.S. 3.6.la was exceeded.

Because a check valve in series with the manual isolation

[]JI] 1 valve can provide containment integrity, this event is to have had I (]]]] I no adverse effect on public health or safety. 7 8 9 [ill] 7 8 SYSTEM CODE I SID I@ 9 . 10 r.::.. LER/AO LVENTYEAA REPORT I 7 I 8 I NUMBER 21 22 CAUSE CAUSE COMP. VALVE CODE SUBCODE COMPONENT CODE . SUB CODE SUBCODE LI@ [!j@ I z1z I z1z 1z1z 1@ 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REPORT NO. COOE TYPE I I I o 11 I 31 I .....-1 I o I 11 W l=I 23 24 26 27 28 29 30 31 ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPA04 PRIME COMP. TAKEN ACTION ON PLANT METHOD HOURS SUBMITTED FOAM sue. SUPPLIER Lll@L!J@ I o 10 Io I o I L!J@ __ W@ L2J@ 33 34 35. . -36 37 40 41 . 42 43 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @ REVISION NO. 11..J 32 COMPONENT MANUFACTURER I 80 1z 19 19 19 I@ 44 47 DJ]] I This event was caused by personnel oversight.

T,o prevent recurrence, the Control Room status board will be used to note the condition of contain-ment isolation valves which do not meet the of TS 1.4. Personnel will be instructed and procedure changes made to assure that OJI]

[TI!] the status board is properly used. 7 8 9 STATUS % POWER OTHER STATUS l.:::;:I [JTIJ 1..£.J I 01 0 I 01@1 N/A I BO A DISCOVERY DISCOVERY DESCRIPTION 7 B 9 10 12 13 44 ACTIVITY CONTENT RELEASED OF RELEASE I AMOUNT OF ACTIVITY !ill] i.£J@ l..E@I NA . I 7 8 9 10 11 44 45 46 80 N/A LOCATION OF RELEASE @ 45 80 PERSONNEL EXPOSURES f.::\

?(.;'.;\ TY!t (':;;:;., DES<J.(fiXON rr:I2] I I I 7 8 9 11 12 13 PERSONNEL INJURIES 80 NUMBER DESCAIPTION6 o::IT] lol bl

______________________________________________

___. 7 8 9 11 12 80 LOSS OR DAMAGE TO FACILITY 14:i\ TYPE DESCRIPTION

'.:::::J (!]2J

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__. 7 8 9 10 so PUBLICITY C\ 7 1 7 I DESCR1710N 0 I ( 0 0 I fil§J W6 .... I I I I I I I I I I I I I I NRC USE ONLY 7 8 9 10 68 69 80 I I I I I . !

L Attachment to Licensee Event Report Consumers Power Company Palisades Nuclear Plant Docket 50-255 013-01-X-l

• . ., ' During p rformance of CRDM main enance on April 21, 1978, the manually-operated valve whi supplies air to the ntainment building was opened in order to provide br thing air to the repai en performing the maintenance.

\Opening this valve breach d containment integrit as defined by Technical 1.4.a. Because the re ctor was in the hot sh condition, the Limiting ti on for Operation o Technical Specificatio'h 3.6.1.a was exceeded.

Intermittent openi of the service air val has been analyzed in the F , which states that in equent opening of this lve while at power is perJWssable.

The Combustion Enginee ing Standard Technical S*ecifications also permit o of selected containment

'solation valves provide adequate administrative occurrence oversight of supervisory In order stre* then administrative cont ls over the opening of air valve,.

• and t of containment integrity equirements as app 'ed tion valves, a status boa notation will be made to of contai ent isolation valves whi do not meet the require Specificat n 1.4. Appropriate trainx g will be conducted and ocedure revisions made to ass personnel will unde tand and comply with these requirements

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• * . . ' .. .. Attachment to Licensee Event Report 78-013-01-X-l Consumers Power Company Plant Docket 50-255. During performance of CRDM maintenance on April 21, 1978, the manually-operated valve which* supplies air to the containment building was opened in order to provide breathing air to the repairmen performing the maintenance.

Opening this valve breached containment integrity as defined by Technical Specification 1.4.a. Because the reactor was in the hot shutdown condition, the Limiting Condition for Operation of Technical Specification 3.6.1.a was exceeded.

Intermittent opening of the service air valve has been analyzed in the FS.AR, which states that infrequent opening of this valve while at power is permissable.

The Combustion Engineering Standard Technical Specifications also permit opening of selected containment isolation valves provided adequate administrative controls exist. This occurrence was caused by oversight of supervisory personnel.*

In order to strengthen administrative controls over the opening of the service air valve,. and to prevent future violations of containment integrity requirements as applied to isolation valves, a status board notation will be made to note the condition of containment isolation valves which do not meet the requirements of Technical Specification

1. 4. Appropriate training will .be conducted and procedure revisions made to assure that personnel will understand and comply with these requirements.

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