ML19260D995

LER 80-003/03L-0:on 800108,during Routine Containment Air Lock Surveillance,Emergency Escape Lock Leakage Found Greater than Allowed.Caused by Excessive Leaking of Packing Glands for Doors Handwheels.Packing Tightened

ML19260D995
Person / Time
Site:	Calvert Cliffs
Issue date:	02/07/1980
From:	Tietjen K BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19260D989	List: ML19260D988 ML19260D995
References
LER-80-003-03L, LER-80-3-3L, NUDOCS 8002120716
Download: ML19260D995 (2)

Text

(7 77)

LICENSEE EVENT REPORT -

P CONTROL BLOCK: l l l l l l lh (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

ITITl IM 10 lc ic It[! Il@lo 10 l- I of ol 01 olo I -lo I ol@l411 7 8 It LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LaCENSE TYPE l11111 JO l@l l

57 CAT 68 l@

CON'T O i sg,g a

L j@l0 l 510 l01013 l1 l7 68l@l011 69 10 l8 l 8 l0 l@l0 l2REPORT EVENT DATE 74 75 l017DATEl 8 lo80l@

7 8 60 61 DOCKET NUVSER EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h ,

o 2: I At 1525, while performing a routine containment air lock surveillance i o 3 I test it was determined that the emergency escape lock leakage was 1.96 l F5T4"'l ISCFM compared to the allowed leakage rate of .65 SCFM as per TS 3.6.1.6.b. I o s lThe increase in leakage was not sufficient to cause a violation of T.S. l lTm [3.6.1.2 (tetal containment leakage). Unit 1 was olaced in action state- l 0 7 l ment 3.6.1.3.b. Maintenance procedures were implemented immediately I o a ;which revealed that only components associated with the outer door were _j

' C$'o'E *#'2E C0 susC$5E CouPONENT COoE su'sECoE sMEE O 9 lS lD l@ O@ lB l@ l P l E l N I E I T lR l@ l A l@ [Z_j 20 7 8 9 to 11 12 13 18 19 SEQUENTIAL OCCU R R E NCE REPORT REVISION LE R, RO EVENT YEAR REPORT NO. CODE TYPE N O.

@ 4Eg l218l0l l_l l0 013 l 24 26 y

27 10l3l 3 M hj 30

[]

31 W

32

_ 22 23 ON P NT HOURS 22 SS I FOR B. sUPPLIE MANUFAC RER Wg Wg T N AC ON ME l3JE lgl34Zl g l5Z lg l 0l 0l 0l l A lg lC l 3 l 1 l 0lg 3 l36Zl@ 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 1 O IMaintenance procedures revealed that the oacking glands for the outer and i m linner door handwheels, located outside the containment, were leaking i 2 texcessively. The packing was inspected and tightened, and the surveill-

, 3 lance test was then repeated successfully. There was no significant in- l g l pact on public health or safety since the inner door and mechanism were i

'sTMY seOWER OTHER STATUS SO S Y DISCOVERY DESCRIPnON @

[7Tirl lE l@ l 0 l 7 l 0 ]@l n l lBl@l SURVEILLANCE TESTING l

- 80 ACTIVITY CO TENT AMOUNT OF ACTIVITY LOCATION OF RELEASE NA NA l.

1 6 RELEASE

[Z_J

' @D OF RELEASE lZl@l "

l l

8' PERsONNEt ExeOsMEs NuueER TvpE oEsCRipnON@

NA i nt1 2 A j} l 1 7 1010 l Ol@!Z '

l@l

' '"' s ' 'so

' PERsONNEt iN;UdEs NuMsER oEsCRienON@

NA l 7

i a 8 9 1010 l Ol@l12 11 go T E DESCR PT ON

[,t_]yJ l Z l@l NA- l 8*9 10 80 7

issujE l @oESCRienONO ya 8002120/) lll11llll1ill; t

2 o [g '

I 7 3 9 10 68 69 80 E Na b Iietien PHONE: (301) 269-4763 2 NAME OF PREPARER

LER N0. 80-03/3L DOCKET NOS. 50-317 EVENT DATE 1/8/80 REPORT DATE 2/7/80 ATTACHMENT EVENT DESCRIPTION AND PROBABLE CONSEQUENCES: (CONTINUED) leaking. Repairs were accomplished and the surveillance test was repeated satisfactorily. Unit I was taken out of action statement 3.6.1.3.b at 1715.

This is a non-repetitive event.

CAUSE DESCRIPTION AND CORRECTIVE ACTIONS: (CONTINUED) sealing properly. No further corrective action is planned at this time since the frequency of surveillance testing is designed to detect these problems and allow correction in a timely manner.

w 1951 345