ML19345A445
| ML19345A445 | |
| Person / Time | |
|---|---|
| Site: | Yankee Rowe |
| Issue date: | 03/05/1975 |
| From: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Andognini G YANKEE ATOMIC ELECTRIC CO. |
| References | |
| 750325, NUDOCS 8011210557 | |
| Download: ML19345A445 (1) | |
Text
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UNITED STATES
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..UCLEAR REGULATOHY COMMISSION REGION 1 631 DACK AVENUC KING OF PRUSSI A. PENNSYLV ANI A f9408 l
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March 25, 1975 E
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Docket No. 50-29 E
Yankee Ato=ic Electric Company E-Attention:
Mr. G. Carl Andognini Assistant to Vice President 3_.
20 Turnpike Roud Westborough, MA 01581 a
Genticcen:
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Enclosed is IE Bulletin No. 75-04 which is forwarded to you for p
information. No action is required of you in response to this i
Bulletin.
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Should you have questions regarding this Bulletin, please contact this office.
Sincerely,
..i.
afee wh~
.h James P. O'Reilly Director i
Enclosure:
H. Autio, Plant Superintendent gY.
cc:
Donald G. Allen, President bec:
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- y Inspection and Enforcement Bulletin No. 75-04 g
f March 24, 1975 j
CABLE FIRE AT BRO *n'NS FERRY NUCLEAR POWER STATION J
DESCRIPTION OF CIRCUMSTANCES:
Preliminary information from Tennessee Valley Auth'ority regarding a fire b;
p which occurred on March 22, 1975, at their Browns Ferry site near Athens, N
Alabama, indicates that the fire was started as a result of construction E
activitics.
The fire resulted in the shutdown of two operating nuclear
[1 plants and made several safety systems inoperative, including systems 3
normally used for decay heat removal during shutdown. The workmen were H
engaged in construction activitics on a third unit not yet licensed L
for operation by NRC.
d Initial information indicates that during the instr.llation and testing
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of cable through-wall penetratDns an open flame ignited a flammable N
material used in the penetratien seals.
ACTION TO BE TAKEN BY LICENSEES:
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The following actions are requested of selected Licensees with operating power reactor facilities and major construction activitics at a co= mon L
site:
E 1
L 1.
Review your overall procedures and system for controlling construction act.ivities that interface with reactor operating 7
activitics, with particular attention to the installation and testing of seals for electrical cables between compartments of the reactor building, e.g.,
control room to cable spreading room.
2.
iteview the design of floor and wall penetration seals, with particular attention to the flammability of materials.
N 3.
Evaluate your procedures for the control of ignition sources which may be used fo'r leak testing or other purposes in areas containing flammable materials.
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o 4.
Report to this office, in writing within 20 days of the date of this Bulletin, the results of your reviews or evaluations I
regarding items 1 through 3 above.
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ACTIONS TO BE TAKEN BY LICENSEES MAY BE REVISED:
I The actions requested of Licensees above may be revised as additional i
details of the Browns Ferry occurrence are available and evaluated by the NRC.
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