ML20236U106

PN-75-001:on 750307,ofc Was Notified of Fire on 750306 at Plant.Fire Resulted from Ignition of Box of CAD-WELD Ignitors Located on Scaffold Near Containment Liner. Inspector Will Be at Site IAW Existing Scheduled Insp

ML20236U106
Person / Time
Site:	Diablo Canyon
Issue date:	03/07/1975
From:	Jennifer Davis, Galen Smith, Thornburg H NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
To:
References
PN-75-001, PN-75-1, NUDOCS 9807290308
Download: ML20236U106 (1)

Text

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PM-75-01 March 7, 1975 PRELIMINARY INFORMATION NOT FOR PUBLIC DISCLOSURE ['o p d Me j#

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. PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURENCE ]

1. (Note: This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance. -l I The $nformation presented is as initially received without verification or evaluation and is basically all that is known .

by OIE staff as of 4:00 p.m. on date of this notification. (

IT SHOULD BE SPECIFICALLY NOTED THAT THIS NOTIFICATION MAY CONTAIN INFORMATION THAT LATER MAY fE DETERMINED TO BE _

• ~~ INACCURATE OR INCONSISTENT. AN OFFICE OF INSPECTION AND I ENFORCEMENT NOTIFICATION OF AN INCIDENT OR OCCURRENCE WILL

,. . ., {

BE FORWARDED IF REVIEW OF LATER INFORMATION INDICATES SUCH -

-ACTION.

Facility: Diablo Canyon, Unit 2 ~

i Pacific Gas and Electric Company

Subject:

CONSTRUCTION FIRE AT DIABLO CANYON UNIT 2 Our Region V office was notified on March 7, 1975, that c fire had-occurred at the Diablo Canyon Unit'2 at 4:30 on March 6, 1975. The fire resulted from the ignition of a box of CAD-WELD ignitors {

located on a scaffold near the containment liner. The following

' damage was reported to have occurred:

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!# 1.

j The. container liner plate'was damaged above the elevations {

.2_- of conerete placement.  !

2. The reactor pressure vessel cladding was damaged by spatter from molten liner plate. i It is reported that the safety related damage is repairable within  !

the requirements of the applicable codes, i i

Based upon preliminary data we believe that the immediate safety  ;

implication of this event are minimal.. We are distributing this information because of publicity which may result from the licensee's {

press. release. '

A Region V inspector will be at the site March 10, 1975 in accordance with an existing' scheduled inspection. .

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Contact:

GESmith, IE x7261, HDThornbuig, II x7353, JGDavis, IE x7541

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i Distribution: \

' Chairman Anders Commissioner Gilinsky Commissioner Kennedy' ,

PPTT MNARY INFORMATION Cotur.issioner Mason  !

NOT FOR PUBLIC DISCLOSURE O I Commissioner Rowden i L. V. Gossick, EDO -

Secretary (2) f[,.

i J. A. Harris, PA (2)

JCAE f

9907290308 750307 PDR IE PN-75-01 PDR L _ - _ - _ - - _ _ _ . -_ - -