ML19224C266
| ML19224C266 | |
| Person / Time | |
|---|---|
| Site: | 05000262 |
| Issue date: | 06/22/1979 |
| From: | Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Mcclurg L Brigham Young University, PROVO, UT |
| References | |
| NUDOCS 7907020026 | |
| Download: ML19224C266 (1) | |
Text
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REGION IV 3 ' 4WS f
611 RYAN PLAZA DRIVE. SUITE 1000 A R LINGTON, T E X AS 76012
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June 22, 1979 In Reply Refer To:
Docket No. 50-262 Brigham Young University ATTN:
Dr. Lynn McClurg Assistant to the Dean College of Physical and Mathematical Science Provo, Utah 84602 Gentlemen:
The enclosed IE Circular 79-09, is forwarded to you for information.
If there are any questions related to your understanding of the suggested actions, please notify the contact listed in the enclor tre to the circular.
Sincerely, f, of l' ' L nU/c:L 4,%; u^
Karl V. Seyfri Director
Enclosures:
1.
IE Circular No. 79-09 2.
List of IE Circulars Issued in Last 12 Months 267 019
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UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D,C.
20555 IE Circular No. 79-09 Date:
June 22, 1979 Page 1 of 1 OCCURRENCES OF SPLIT OR PUNCTURED REGULATOR Di'PHRA m9 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-contair.ed 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 Dr,and-Mode and a loss of service time (but no loss of protection) in the Pressure Demand-Mode.
Notice to Licensees:
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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 inspection 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:
Mailgram 267 000
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