ML19207C116

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Forwards IE Circular 79-15, Bursting of High Pressure Hose & Malfunction of Relief Valve & O-Ring in Certain Self-Contained Breathing Apparatus. No Action Required
ML19207C116
Person / Time
Site: Humboldt Bay, Diablo Canyon
Issue date: 08/08/1979
From: Engelken R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
To: Crane P
PACIFIC GAS & ELECTRIC CO.
References
NUDOCS 7909060457
Download: ML19207C116 (1)


Text

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UNITED STATES e

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WALNUT CRE E K, CALIFORNIA 945%

August 8,1979 Docket No. 50-133 50-275 50-323 Pacific Gas and Electric Ccmpany 77 Beale Street San Francisco, California 94106 Attention: Mr. Philip A. Crane, Jr.

Assistant General Counsel Gentlemen:

The enclosed Circular 79-15 is forwarded to you for information.

If there are any questions related to your understanding of the suggested actions, please notify NIOSH at the telephone number listed in the enclosure to the Circular.

Sincerely, A

j,u 't. H. Engelken Director Enclosur as:

1.

IE Circular No. 79-15 2.

Listing of IE Circulars Issued in the Last Six Months cc w/ enclosures:

W. Barr, PG&E W. Raymond, PG&E E. Weeks, PG&E, Humboldt Bay R. Ramsay, PG&E, Diablo Canyon J. Worthington, PG&E 01';O01 79'9060

UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.

20S55 August 8, 1979 IE Circular No. 79-15 BURSTING OF HIGH PRESSURE HOSE AND MALFUNCTION OF RELIEF VALVE AND "0"-RING IN CERTAIN SELF-CONTA:NED BREATHING APPARATUS Description of Circumstances:

The Nuclear Regulatory Commission (NRC) has been informed by mailgram (copy enclosed) from the National Institute of Occupational safety and Health (NIOSH) of occurrences of bursting of the high-pressure hose assembly, and malfunction of the relief valve and of the "0"-Ring in the main line assembly of the SurvivAir Mark I self-contained breathing apparatas. Any one of these failures would result in immediate loss of air supply to a user.

Licer. sees who use the SurvivAir Mark I SCBA should:

1.

Discontinue use of the apparatus until the units have been inspected by the manufacturer and all necessary repairs or replacements have been made.

2.

Contact the manufacturer or supplier of the equipment for instructions on arranging for inspection and repair.

No written response to this circular is required.

If you require additional information regarding this subject, please contact the office specified in the enclosed mailgram.

Enclosure:

Mailgram J

R 7;g DUPLICATE DOCUMENT y ji)[y Entire document previously entered into system under:

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ANO No. of pages:

9