ML17317A767

LER#78-082/03L-0 on 781025:during Leak Rate Test on the 650 Foot Elevation Airlock Doors,Noted That Leakage Rate Exceeded Acceptable Limits.Caused by Inadequate Seal of Outer Door.Switch Indicator Subsequently Readjusted

ML17317A767
Person / Time
Site:	Cook
Issue date:	11/22/1978
From:	Beilman T INDIANA MICHIGAN POWER CO.
To:
Shared Package
ML17317A764	List: ML17317A763 ML17317A765 ML17317A766 ML17317A767 ML17317A768
References
LER-78-082-03L, LER-78-82-3L, NUDOCS 7811300188
Download: ML17317A767 (3)

Text

J 'RC FORM 366 ~.

I7-77) 1 LICENSEE EVENT I ".PORT NUCLEAR REGULATORY COMMISSION CONTROL BLOCK:

I ,Q (PLEA "-

Pi.INT OR TYPE ALI. REQUIRED liiIFORMATIONI M I D C C 2Q2 14 15 0 0 0 0:0 0 0 LICENSE NUMBER 0~!0 0 0 25 Q34 26 1 1 LICENSE TYPE 1 1 30 QE~QE 57 CAT 58 7 8 9 LICENSEE CODE CON'T REPDRT

~LQ60 5 0 0 0 3 1 6 Q7~1 0 2 5 7 8QB 1 1 2 2 7 8 Q9 7 8 60 61 DOCKEi NUMBER 68 69 EVEiVT DATE 74 75 REPORT DATE 80 EVENT-DESCRIPTION AND PROBABL.E CONSEQUENCES Q10 WHILE PEHEQRMING A RCOTZK IZAK RATE TEST ON SERE 650 FOVZ

~03 DOORS "IN AQCORDANCE WITH T S 4 6 1 3 AI IT tIVB a~OTED THAT THE IZAKAGE RATE

~04 EXCEEDED AQCEPTABLE LIMITS.

~06

~06

~07

~08 80 7 8 SYSTEh1 CAUSE CAUSE COMP. VALVE CODE CODE SUBCODE COMPO NT CODE SUBCODE SUBCODE

[oO~] ~E" D,Q11 E Q12: ~G. Qlg ~PE; N.-i "~TR. Q14 ~L, Q15 ~E.Q15 7 8 9 10 11 12 13 18 19 20 SEOUENTIAI. OCCURRENCE REPORT REVISION Q11 LER7RP REPORT EVENT YEAR

~78 21 22

~

23

~08 24 REPORT NO.

2 26 27 28 CODE 29 TYPE 30 31 32 NO.

ACTION FUTURE

'TAKEN ACTION EFFECT ON PLANT SHUTDOWN METHOD 'OURS +22 ATT ACHMENT SUBhIITTED NPRDP FORM SUB.

PRIME COMP.

SUPPLIER COMPONENT MANUFACTURER QJQ]8 33

~QI9 34

~Q20 35 QJQ21 36 37 40 QJ Q23 41 PJQ24 42 PJ 43 Q25 44 47 Q26 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27 CZ3 INlI7ESTIGATION IDENTIP~ THE CAUSE TO BE THE ~~R DOORE WHOSE PCSITION WAS 1

INDICATED AS BEING FiJiZY CLCSED ALTHOUGH THE b92TUAL IATCSING MECHANISM WAS DISCOVERED TO BE APPROXIMATELY ONE QUARTER TURN OPEN, CAUSING AN INADEQUATE 3

SEAL. THE SWITCH WHICH SUPPLIES POSITION INDICATION WAS AMUSTED TO INDICATE CLOSED ONLY WHEN THE HKSANISM IS HOLY CLOS@;i. SEE SUPPLEMENT 80

~

7 8 9 FACII.ITY ~30 METHOD OF STATUS POWER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION Q32

~06 LSR

~E Qgg 1 Qgg NR ~B Q31 SUÃP~ILGKCE TEST 8 9 10 '12 13 44 45 "6 80 ACTIVITY CONTENT RELEASED OF RELEASE AhIOUNTOF ACTIVITY Q LOCATION OF RELEASE Q EK 7 8 9

~

Q WQ34 10 11 NA 44 45 80 PERSONNEL EXPOSURES era 7 8

~QWQ 9

NUMBER 11 PERSOi JNEL INJURIES TYPE 12 DESCRIPTION 13 Q3 80 DESCRIPTION Q41 5 ~00 NUPVIBER 0 Q40 NA 80 7 8 9 11 12 LOSS OF OR OAhIAGE TO FACILITY TYPE DESCRIPTION Q43 ZQ4, NA 7 8 9 10 80 PUBLICITY NRC USE ONLY ISSUED DESCRIPTION Q NA Pi 0] ~NQ44 68 69 80 g 616-465-5901 OP 0.:

RRME RP PREP*RE R PHONE: 0

SUP~@mr TO LZR 87"-082/03L-0 SUPPLEMENT 'IO CAUSE DE".-CRITICS THE DOOR LATCHING MMRNISM OF THE UNIT 'INO INNER DOOR AND BOTH KNIT CNE DOORS OF TH"'50 EU"VATZON AIR ICCKS NERE VERIFIED TO

.BE INDICATING CORHIKTLY Q~t IN THE FULXZ CLGSED POSITION. NO FURZH1% ACTICN IS P&~~iKD.

~,