05000334/LER-1978-065-03, /03L-0 on 781228:during a Surveillance Test on Control Room Emergency Habitability Sys,Sys Could Not Maintain the Room at Required 1/8 Inch Wc Above Outside Atmosphere.Caused by Leaks in Control Room

/03L-0 on 781228:during a Surveillance Test on Control Room Emergency Habitability Sys,Sys Could Not Maintain the Room at Required 1/8 Inch Wc Above Outside Atmosphere.Caused by Leaks in Control Room

ML19269C286
Person / Time
Site:	Beaver Valley
Issue date:	01/26/1979
From:	Werling J DUQUESNE LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19269C285	List: 05000334/LER-1978-065, Forwards LER 78-065/03L-0 05000334/LER-1978-065-03, /03L-0 on 781228:during a Surveillance Test on Control Room Emergency Habitability Sys,Sys Could Not Maintain the Room at Required 1/8 Inch Wc Above Outside Atmosphere.Caused by Leaks in Control Room
References
LER-78-065-03L, LER-78-65-3L, NUDOCS 7901310049
Download: ML19269C286 (1)

LER-1978-065, /03L-0 on 781228:during a Surveillance Test on Control Room Emergency Habitability Sys,Sys Could Not Maintain the Room at Required 1/8 Inch Wc Above Outside Atmosphere.Caused by Leaks in Control Room

Event date:
Report date:
3341978065R03 - NRC Website

text

.

NRC FORM ';46 U.S. NUCLEAR REGULATORY COMMISSION

. (7 77)

• LICENSEE EVENT REPORT CONTROL BLOCK:

l l

l l

l lh

& LEASE PRINT OR TYPE ALL REQUIRED INFO 6MATION) 1 6

o li l P l A l B l V l S l 1pl 0 l0 l-l 0 l0 l 0 l 0 l 0 l-l0 l 0 l@l4 l1 l1 l1 l1 l@l l

l@

7 8 9 LICENSEE CODE 84 15 LICENSE NuMeER 25 26 LICENSE TvrE JG 57 car sd CON'T g

l L @l 0 l 5 l 0 l 0 l 0 l 3 l 3 l 4 @l l l 2 l 2 l 8 l 7 l 8 @l 0 1l 2l 6l 7l9l@

RE'OR7 3uc 7

8 60 61 DOCK ET NUM8ER ha t>3 EVENT 0 ATE 74 75 REPORT 0 ATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h [TTT] l While performing a surveillance test on the control room emergency habitability (TTT]l system, it was determined the system could not maintain the control room at the g

[777]l required 1/8 inch WC above the outside atmosphere. An investigation was begun to l

0 s I determine any source of leakage. The health and safety of the general public was l

ITTR I not jeopardized. When corrective action was complete, the test was reperfo_rmed I

Isatisfactorily.

1 C

7 O

s !

I

• E'E C0$I StsCi$E COMPONENT CODE SUB OD'E S

E F6T97 Is Ic l@ LxJ@ LLJ@ l zi zl zl zl zi 7I@ Iz l@ Iz l@

7 8

9 to 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION LE R EVENT YEAR REPORT NO.

CODE TYPE No.

@,agg/RO 1718 l-l 10161 si l/l I 01 31 lL !

L---J 101 g

2%

22 23 24 26 27 28 29 30 33 32 N AC C ONP NT ME HOURS S8 i POR 8.

5 PPLIER MANUF CTURER I

Zl@

l Z l@

l Z l@

l 0l 0l 0l 0l W@

l N l@

Zl@

l Z l 9 l 9 l 9 l@

gl34 33 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 27 lThe incident resulted from numerous leaks in the control room.

Leaks were located g

i O

l around doors, cable penetrations and penetrations r ade for installation of i i 1 modifications. The leaks around doors and cable penetrations were sealed.

l i 2 l Penetrations made for modifications will be controlled so that they do not remain l

i 3 g l open for extended periods if work is not being performed.

l 7

9 80 ST

% POWER OTHER STATUS dis O RY DISCOVERY DESCRIPTION y W @ l0l0l0l@l N/A l

l B l@l Surveillance test l

ACTIVITY CO ENT aELEASEo OP aELE ASE AuOusT OF ACTIVITY LOCATION OP RELEASE

@ l Zl@ l N/A l

l N/A l

1 6 PERSONNEL EXPOS ES otSCRiPTiON @

NUuBER TveE l0l0l0lhlZlhl N/A l

i 7 2

PERSONN E L iN;u'RitS DESCRIPTION @

NUVBER l0 0l0l@l N/A l

1 a 7

8 9 11 12 go LOSS OF OR D AMAGE TO FACILITY TYPE [Zj@, DESCRIPTION N/A l

9 7

8 3 to go ISSUE DE CRIPTION hl N/A l

llllllllll ll lj 2 O 7

e s to se e,

ao. :

7 9 01 3 1 O,y, o,,,,,,,,, _

.r. A. Werling 412-643-12s8 o

y

,,0y,