ML19248C924
| ML19248C924 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point, Palisades File:Consumers Energy icon.png |
| Issue date: | 06/22/1979 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Dewitt R CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| References | |
| NUDOCS 7907050445 | |
| Download: ML19248C924 (1) | |
Text
Tl0
/
UNITED STATES l *.
J' 7, NUCLEAR REGULATORY COMMISSION 5. k'h
'I I E REGION lli
-/
o, b
[
799 ROOSEVELT ROAD g
'%- [
GLEN CLLYN ILLINOls 60117 JUN 2 21979 Docket No. 50-155 Docket No. 50-255 Consumers Power Company ATTN:
Mr. R. B. DeWitt Manager of Nuclear Plant Operations 212 West Michigan Avenue Jackson, MI 49201 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 no 'fy the contact listed in the enclosure to the circular.
Sincerely, Q N.-k VJames G. Kep" pier Director
Enclosure:
IE Circular No. 79-09 cc w/ encl:
Mr. C. J. Hartman, Local PDR Plant Superintendent NSIC Mr. J. G. Lewis, Plant TIC Superintendent Ronald Callen, Michigan Public Central Files Service Commission Director, NRR/DPM Anthony Roisman, Esq.,
Director, NRR/ DOR Attorney PDR Myron M. Cherry, Chicago 20]
oAi 790705 0e/95~
o c~
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 TREATHING APPARATUS Description of Circumstances:
The Nuclear Regulatory Commission (NRC) has been informed by mailgra= (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 ruptare, have been identif'.ed in about 10 percent of the units by the NIOSH field survey.
Tests of the Scott apparatus by NIOSH showed reduced respiratory protection ir. the De=and-Mr de and a loss of service time (but no loss of protection) in the Pressure De2.and-Mode.
Notice to Licensees:
Many trajor licensees use the types of Scott apparatus described above. Users of the devices should tal ; the following action:
1.
Establish a program for examination of the described respiratory devices in accordance with the er. closed NIOSH mailgram; or 2.
Incorporate the provisions of the NIOSH ma11 gram into your current program for inspection af the described devices.
No written response to this Circular is required.
If,ou 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 s;
< ~. _
m_
DUPLICATE DOCU_ MENT Entire document previously entered into system under:
9067Aony AO
}g}
2 l{ 9 No. of pages:
h[