ML19248C914
| ML19248C914 | |
| Person / Time | |
|---|---|
| Site: | 07000925, 07001193 |
| Issue date: | 06/22/1979 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Shelley W KERR-MCGEE NUCLEAR CORP. |
| References | |
| NUDOCS 7907050437 | |
| Download: ML19248C914 (1) | |
Text
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NUCLEAR REGULATORY COMMISSION pg c
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JUN 2 21979 Docket No.70-925 Docket No. 70-1193 Kerr-McGee Nuclear Corporation ATTN:
Mr. W. J. Shelley, Director Regulation and Control Kerr-McGee Center Oklahoua City, OK 73102 Gentlemen:
The enclosed IE Circular No. 79-09, is forwarded to you for informa-tion.
If there are any questions related to your understanding of the suggested actions, please rotify the contact listed in the enclosure to the circular.
Sincerely,
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(/ James G. Kep%fer Director EL :losure :
IE Circular No. 79-v' cc w/ enc 1:
Mr. B. E. Brown, General Managar, Manufacturing Central Files PDR Inc.1 un,e NSIC 1
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U.S. NUCLEAR REGULATORY COMMISSION 0FFICE OF INSPECTION AND ENFORCEMENT REGION III June 22, 1979 IE Circular No. 79-09 OCCURRENCES OF SPLIT OR PUNCTURED REGULATOR DIAPHRAGMS IN CERTAIN SELF-CONTAINED BREATHING APPARATUS Description of Circumstancea:
The Nuclear Regulatory Commission (NRC) has been informed by mailgram (copy enclosed) from the National Institute of Occupational Safety and Health (NIOSH) of the high rate of regulator diaphragm failures in the Scott Air Pak II/ IIA and Presur-Pak II/ IIA self-contained breathing apparatus. The failures, ranging from pin holes in the diaphragm to complete diaphragm rupture, have been identified in about 10 percent of the units by the NIOSH field survey.
Tests of the Scott apparatus by NIOSli showed reduced respiratory protection in the Dee.and-Mode and a Icss of service time (but no loss of protection) in the Pressure De=and-Mode.
Notice to Licensees:
Many major licensees use the types of Scott apparatus described above. Users of the devices should take the following action:
1.
Establish a program for examination of the described respiratory devices in accordance with the enclosed NIOSH mailgram; or 2.
Incorporate the provisions of the NIOSH mailgram into your current program for ins;
- fon of the described devices.
No written response to this Circular is required.
If you require additional information regarding this subject, please contact the individual specified in the enclosed mailgram.
Enclosure:
1.
Mailgram 2.
List of IE Circulars issued in last twelve months DUPLICATE DOCUMENT Entire document previously entered into system under:
ANO 7 O 09 037 28}
2 No. of pages:
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