05000293/LER-1980-015-03, /03L-0:on 800401,during Performance of Surveillance Test,Dry Chemical Fire Protection Sys Failed to Automatically Initiate.Caused by Erratic Pyrotronics, Dtf 190 heat-actuated Device.Unit Replaced

/03L-0:on 800401,during Performance of Surveillance Test,Dry Chemical Fire Protection Sys Failed to Automatically Initiate.Caused by Erratic Pyrotronics, Dtf 190 heat-actuated Device.Unit Replaced

ML19309G413
Person / Time
Site:	Pilgrim
Issue date:	05/01/1980
From:	Mcloughlin M BOSTON EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19309G410	List: 05000293/LER-1980-015, Forwards LER 80-015/03L-0 05000293/LER-1980-015-03, /03L-0:on 800401,during Performance of Surveillance Test,Dry Chemical Fire Protection Sys Failed to Automatically Initiate.Caused by Erratic Pyrotronics, Dtf 190 heat-actuated Device.Unit Replaced
References
LER-80-015-03L, LER-80-15-3L, NUDOCS 8005060264
Download: ML19309G413 (2)

LER-1980-015, /03L-0:on 800401,during Performance of Surveillance Test,Dry Chemical Fire Protection Sys Failed to Automatically Initiate.Caused by Erratic Pyrotronics, Dtf 190 heat-actuated Device.Unit Replaced

Event date:
Report date:
2931980015R03 - NRC Website

text

e 1

p.n >

LICENSEE EVENT REPORT R 005 0 60 CONTRQL BLOCK: l l

l l

l lh (PLEASE PRINT C3 TYPE ALL RE!UIRED INFL7MATIIN) 6 R l Ml Al Pl Pl Sl 1 l@l 0 l 0 l - l 0 l 0 l 0 l 0 l 0 l - l 0 l 0 l@l 4 l 1 l I l 1 l 1 l@l l

l@

7 8 9 LICENSEE CODE 14 15 LICENSE NUMBER 2S 26 LICENSE TYPE JO

$7 CAI $8 CON T l O I 1 I $ $URC l L l@l 0 l 5 l 0 l - l 0 l 2 l 9 l 3 @l 0 l 410 l 118 l 0 l@l_q l 5 l 0 l 1 l 8 l O_l@

i 7

8 60 68 OOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSECUENCES h Lo_QJ l During the performance of an April 1, 1980 surveillance test of the Dry Chemical l

l O l a i l fire protection system for the 'A' Diesel Generator, it was determined that the I

l o I.: l l system was inoperable. The system failed to automatically initiatg during the test. J g l A fire watch was itnnediately initiated and a Maintenance Request was issued to l

E linvestigate the equipment problem.

(Refer to attachment for additional details) l LO_Q) l l

I o I8 I l l

80 7

8 9 E

CODE Sa E

COMPONENT CODE SU8 OD'E SU E

l Al Bl@ W@ 'd@ lI lN lS lT lR lU l@ bj@ W @

O 9 7

8 9

10 11 12 13 18 19 24 SEOUENTI AL OCCURRENCE REPORT REVISION LER RO EVENT YEAR REPORT NO.

CODE TYPE NO.

@ Eugg l218 l0 l l-l l0 l1 l5 l y

l0 l3 j

(_L_j

[---J

(_0J f

22 23 24 26 27 M

M 30 31 32 TAKEN AC O ON PL NT ME HOURS 22 S8 i FOR 8.

SUPPLI MANUPAC RER l X l@[A_J@

[_Z_J@

[Z_j@

l0l0l0l0l y@

[N_J@

W@

lP l 4l 3l 5l@

33 J4 3b 36 31 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h li101l l

(Refer to Attachment) i i 7 I

l i 3 l

l i 4 l

l

?

8 9 80

$A S

% POWER OTHER STATUS IS O Y

DISCOVERY DESCRIPTION N.A.

l l Bl@l Routine Testing l

l,Hj@ l0l0l0l@l i 5 d.CTIVITY CO TENT RELEASED OP RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASL N.A.

l l

N.A.

l

@l 1 6 7

8 9 10 11 44 45 80 PERSONNEL EXPOSURES NUM8eH TYPE

DESCRIPTION

l0l0l0l@ W h N.A.

l 1 7 PEHSONNE INJURIES NUMRER

DESCRIPTION

N.A.

l l0l0l0l@l i a l

7 8 9 11 12 80 i

LOSS OP OR DAMAGE TO FACILITY I

TYPE

DESCRIPTION

N.A.

l W @l i 9 7

8 9 10 80 ISSUE

DESCRIPTION

hl N.A.

l l ! 11 l l l l l l l l l }

2 O 7

8 9 10 68 69 80 2 M.

omas Mckughlin pgong _61hM4%

{

NAME OF PREPARER

BOSTON EDISON COMPANY PILCRIM NUCLEAR POWER STATION DOCKET NO. 50-293 Attachment to LER 80-015/03L-0

Description

On April 1,1980 surveillance test number 8.B.7, Part B was conducted on the diesel generator ' A',

fixed dry chemical, fire protection system.

The system's Derby Release mechanism failed to operate af ter four minutes of heat lamp exposure. Past experience with the system indicated that the system normally actuated af ter forty to sixty seconds of test lamp exposure.

The problem was immediately investigated by PNPS I&C personnel. The in-vestigation revealed that a Pyrotronics, type DTF 190 Heat Actuated Device (HAD) was erratic in its operation. Since no DTF 190 HAD's were available, the unit was re-installed.

Corrective Action

A constant fire watch has been posted in the generator room since the system malfunction and the watch will continue until the unit is repaired.

A PNPS Withdrawal Requisition number 324277 was immediately generated to purchase 2-DTF 190 HAD's from Pyrotronice Incorporated and the order telephoned into the Pyrotronics office in Needham, Massachusetts. On April 17, 1980 Purchase Order number 23807 was secured from the BECo Purchasing Department.

Pyrotronics was again contacted and they informed us that we could expect delivery by May 8,1980.

Upon reception of the replacement HAD's the intermittent unit will be replaced and tested. Following successful completion of this testing, the dry chemical system will be returned to normal operation and the fire watch discontinued.