ML19225A271
| ML19225A271 | |
| Person / Time | |
|---|---|
| Site: | 07001113 |
| Issue date: | 06/22/1979 |
| From: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Alkema R GENERAL ELECTRIC CO. |
| References | |
| NUDOCS 7907180723 | |
| Download: ML19225A271 (1) | |
Text
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- pa atouq'o UNITED ST ATES NUCLEAR REGULATORY COMMISSION ef[' I 8 "*s,,(f REGION ll c
101 M A RIETT A ST., N.W., SUITE 3100 ogv,o#
ATLANT A, GEORGI A 30303 JUN 2 21979 In Reply Refer To:
RII:JPO 70-1113 General Electric Company Attn:
Mr. R. J. Alke=a, General Manager Nuclear Fuel Depart =ent P. O. Box 780
- W11=ington, North Carolina 28401 Gentle =en:
The enclosed Circular 79-09, is forwarded to you for infor=ation. If there are any questions related to your understanding of the suggested actions, please notify the contact listed in the enclosure to the circular.
Sincerely,
.[
Ja=es P. O' Reil Director
Enclosures:
1.
IE Circular No. 79-09 2.
Listing of IE Circulars Issued in Last Twelve Mcoths 7907180723 345 064
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UNITED STATES NUCLEAR RECULATORY COMMISSION OFFICF OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
20555 June 22, 1979 IE Circular No. 79-09 OCCURRENCES OF SPLIT OR PUNCTURED REGULATOR DIAPHRAGMS IN CERTAIN SELF-CONTAIMED BREATHING APPARATUS Description of Circumstances:
The Nuclear Regulatory Cocsission (NRC) has been informed by mr.11 gram (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. Usere 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 7906290237 345 065
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1-056166U122014 05/02/79 ICS aA12139 HSMA 00592 MLTN VA 05/02/79 MR. JERRY CAPLIN
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USNRC WASHINGTON, DC 20555 RESPIRATOR USERS WARNING THE NATIONAL INSTITUTE FOR OCCUPATIONAL SAFETY AND MEALTH (NIOSH) MANTS TO ADVISE USERS"0F SCOTT AIR PAK II/ IIA AND PRESUR-PAK II/ IIA SLLF-CONTAINED SREATHING APPARATUS OF THE OCCORRENCES OF SPLIT OR PUNCTURtc REGULATOR DIAPHRAGMS, NIOSM TESTS INVtSTIGATING1TME EFFECT OF SUCN DEFECTS SM0ato REDUCEO m_RtSPIRA10RY PROTECTION ON'OtMAND-MODE APPARATUS. THESE
" "SAME TtSTS ALSO SH0aED NO LOSS IN PROTECTION, BUT A LOSS IN CEZZh SERVICE TIME AMEN IN TML PRESSURE OLMAND-MODE. NOTE: THE C]{72 PREdSURt DEMAND UNIT IS NOT APPROVED >HILE IN THE DEMAND rm df2 MUOtt INE DEMAND MOOL IS TO BL UStu FOR CONNING PUkPOSES t;,jJ t{gg
- ONLY, (M !;as NIOSM utGAN TMIS INVESTIGATION FULLOWING TML KtCENT DEATH
't;nd 0F THREE FIREFIGMTERS~>MO WLRt WEARING THIS TYPt OF dot'a RESPIRA10R, ALTHOUGM IT HAS NOT BEEN ESTABLISMEQ THAT
[U'. 71 THE DEAlHS atRL DUE TU DAMAGED REGULATOR DIAPMRAGMS, A hS[3 SAMPLING OF TML APPARATUS IN TML F!ELO MAS SHonN AT LEAST
(,ffy) 101 0F 1Mt UNITS EXAMINt0 MAVE RUPTURLD OR PUNCTURED DIAPHRAGMS,
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pg Lm "a Ubtd5 bn0ULO El&MINE THEIM 5COTT APPARATUS FOR POSSIBLE bh DAMAGE 0 DIAPMRAGMS IN ACCORUANCE *ITH "ANUFACTURER'S 62ila INSTRUCTIONS. THE USEw SMUULD CNLCK THE DIAPMWAGM SLFORE N57"'
EACM Uht eY CLOSING ~ SOTM THE MAIN LINE AND BYPASS VALVES
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AND EL0aING THROUGH THE REGULATOR CUTLET PORT. Ji SMOULO j"
bE POSSImLL 10 MAINTAIN A SLIGHT POSITIVE PmESSURL IN inE RtGULATUR. TML USER'SHOULD CHECK THL REGULATOR 01APMMAGM AFTER LACM USE AND UUkING MONTHLY INSPECTILNS Of THE COMPLEft APPAhATUS. IT IS NOT KNUaN IF FAILURL UCCURS DURING ASST"mLY, STC-AGE, UR'USE OF TML RESPIRATOR REGULATOR.
T HEmEFUWE, LITREME CAUSTION MUST BE EMPLOYLO antN USING Mt RtSPIRATOR. IN LMtCKING THE OPERA. ION OF TML RESPIRATOR, USERS ANL CAUTIONED'NOT TO BLOCK TME FL0a OF AIR FROM THE REGULATLk AMEN TNE eVPAb5 VALVE IS OPEN, BECAUSE SUSSTANTIAL T"f} Qf6 DESTRUCTION MAY RUPTURE Ok DISLUDGL inE DIAPMMAGM. IF THE UStm UebERvtS A LOOSE 0-DISLOCGED REGULATOR CUvER, THE CovtR MUST e t J t ap v E g,,Ap p,,Yg(.p J.A ?.a.i A GM.l > $ P.E C T E D SLFURE k E 4 5 5 E " Kl '.-
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g 0F THE REGULATOR, NIO5h HAS REGUESTED THE MANUFACTURER STOP ALL SALES OF THE RESPIRATOR PENDING DETERMINATION OF THE REASON FOR AND NECESSARY CURwECTIvt ACTION TO PREVENT DIAPNRAGA FAILURE, FOR FURlhER lLCHNICAL INF UhM AT ION CONTACT! MR, HICHARD RONK, NIOSH, 944 CMESTNUT RIDGE ROAD, MORGANTonN, WV 26505, PHONE: t h 599-7337, Sc?
ANTHONY ROBb1NS, h.D, DIRLCTOH, NIUSN RUCKVILLE MD (AHS HUEvFCZ 0-26-01-036683) 21:19 tST M G M C U tiP M L, M 4'
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r IE Circular No. 79-09 Enclosure June 22, 1979 Page 1 of 2 LISTING OF IE CIRCULARS ISSUED IN LAST TWELVE MONTES Circular Subject Date Issued To No.
of Issue 78-10 Control of Sealed 6/14/78 All Medical Sources Used in Licensees in Radiation Therapy Categories G and G1 78-11 Recirculation M-G 6/15/78 All Holders of Set Overspeed Stope BWR OLs or cps 78-12 HPCI Turbine Control 6/30/78 All Holders of Valve Lif t Rod Bending BWR OLs or cps f,r plants with HPCI Iarry Turbine 78-13 Inoperability of Multiple 7/10/78 All Holders of Service Water Pumps Reactor OLs and CFs except for plants located in: AL, AK, CA, FL, GA, LA, MS, SC 78-14 HPCI Turbine Reversing 7/12/78 All Holdere of BWR Chamber Hold Down Bolting OLs or C7e for plants with a EPCI Terry Turbine excepting Duane Arnold and Manticello 78-15 Checkvalves Fail to 7/20/78 All Holders of Close In Vertical Reactor OLs or cps Position 78-16 Limitorque Valve 7/26/78 All Holders of Actuators Reactor OLs or cps 78-17 Inadequate Guard Training /
10/13/78 All Holders of Qualification and Falsified and applicants Training Records for Reactor OLs 78-18 UL Fire Test 11/6/78 All Holders of Reactor OLs or cps 345 068
Enclosure IE Circular No. 79-09 June 22, 1979 Page 2 of 2 LISTING OF IE CIRCULARS ISSUED IN LAST TWELVE MONTHS Circular Subj ect Date of Issued to No, Issu e 78-19 Manual Override (Bypass) 12/28/78 All Holders of of Safety Actuation Signals cps 79-01 Administration of 1/12/79 All Medical Unauthorized Byproduct Licensees except Material to Hunans Teletherapy Medical Licensees and each Radiopharmaceutical Suppliers 79-02 Failure of 120 Volt Vital 2/16/79 All Holders of AC Power Supplies Reactor OLs and cps 79-03 Inadequate Guard Training-2/23/79 All Holders of Qualification and Falsified and applicants Training Records for Special Nuclear Material Licenses in Safeguards Group I 7 9- 04 Loose Locking Nut on 3/16/79 All Holders of Limitorque Valve Reactor OLs or cps Operators 79-03 Moisture Leakage In 3/20/79 All Holders of Stranded Wire Conductors Reactor OLs or cps 79-06 Failure to Use Syringe 4/19/79 All Holders of and Battle Shields in Medical Licensees Nuclear Medicine except teletherapy licensees 79-07 Unexpected Speed Increase 5/2/79 All Holdere of of Reactor Recirculation BWR OL's or CP 's MC Set Resulted in Reactor Power Increase 79-08 Attempted Extortion - Low 5/18/79 All Fuel Facilities Enriched Uranium Licensed by NRC 345 069