ML19248C908
| ML19248C908 | |
| Person / Time | |
|---|---|
| Site: | 07000036 |
| Issue date: | 06/22/1979 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Lichtenberger H ABB COMBUSTION ENGINEERING NUCLEAR FUEL (FORMERLY |
| References | |
| NUDOCS 7907050432 | |
| Download: ML19248C908 (1) | |
Text
.p" "' coq'o UNITE D S.TATES NUCLEAR REGULATORY COMMISSION PDR E ',,.,_, ' ' 't
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,0 GLEN ELLYN, ILLINOls 60137 JUN 2 21979 Docket No. 70-36 Combustion Engineering, Inc.
ATTN: M r. 11. V. Lichtenberger Vice President - Manufacturing 4.2 clear Power Systems Windsor, CT 06095
';entlemen :
The enclosed IE Circular No. 79-09, is forwarded to you for informa-tion.
If there are any questions related to your understat.iing of the suggested actions, please notify the contact listed in the enclosure to the circular.
Sincerely,
.b NA James G. Keppler Director
Enclosure:
IE Circular No. 79-09 cc w/ encl:
Mr. J. A. Rode, Plant Manager Central Files PDR NSIC
'3 907 % d
U.S. NUCLEAR REGULATORY COMMISSION OFFICE 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 Circumstances:
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 NIOSH showed reduced respiratory protection in the Demand-Mode and a loss of service time (but no loss of protection) in the Pressure Demand-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 cailgram; or 2.
Incorporate the provisions of the NIOSH ma11 gram into your current program for inspeccion of the described devices.
No written response to this Circular is required.
If you require additional information regarding this suaject, please contact the indivi.fual specified in the enclosed mailgra=.
Enclosure:
1.
Mailgram 2.
List of IE Circulars issued in last twelve months fDUPLICATEDOCUMENT Entire document previously entered
_ into system under:
06290237 ANO No. of pages:
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