ML19242D726

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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
ML19242D726
Person / Time
Site: Browns Ferry  Tennessee Valley Authority icon.png
Issue date: 08/08/1979
From: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To: Parris H
TENNESSEE VALLEY AUTHORITY
References
NUDOCS 7908170015
Download: ML19242D726 (2)


Text

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/'ga asog#'o UNITED ST ATES

!' '., (f 7 NUCLEAR REGULATORY COMMISSION 8'

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101 M ARIETT A ST, N.W., SUITE 3100 AT L ANT A, GEORGI A 30303

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AOL L 15E In Reply Refer To:

RII:JPO 50-259 50-260 50-296 Tennessee Valley Authority ATTN:

H. G. Parris Manager of Power 500A Chestnut btreet Tower II Chattanooga, TN 37401 Gentlemen:

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

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

Sincerely, k James P. O'Reilly Director Enclosureu:

1.

IE Circular No. 79-15 2.

Listing of IE Circulars Issued in the Last Six Months q

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7 9081700Iy

e-g 197 Tennessee Valley Authority 7 cc w/ enc 1:

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Plant Superintendent Post Office Box 2000 Decatur, Alabama 35602 J. F. Cox 400 Commerce Street W10C131 C Knoxville, Tennessee 37902 D. E. McCloud Project L,gineer 400 Chestrut Street Tower II Chattanooga, Tennessee 37401

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hTCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCE..iT WASHINGTON, D.C.

20555 August 8, 1979 IE Circular No. 79-15 BURSTING OF HIGH PRESSURE HOSE AND MALFUNCTION OF RELIEF VALVE AhT "0"-RING IN CERTAIN SELF-CONTAIhT.D BREATHING APPARATUS Description of Circumstances:

The Nuclear Regulatory Comission (NRC) nas been informed by mailgram (copy enclosed) from the National Institute of Occupational Saft?J and Health (NIOSH) of occu rences 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 apparatus. Any one of these failures would result in immediate loss of air supply to a user.

Licensees who use the SurvivAir Mark I SC3A should:

1.

Discontinue use of the apparatus until the units have been in.spected 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 aIditional information regarding this subject, please contact the office specifiej in the anclosed mailgram.

Enclosure:

Mailgram 7

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