ML20069C214
| ML20069C214 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 03/09/1983 |
| From: | Edelman M CLEVELAND ELECTRIC ILLUMINATING CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| REF-PT21-83 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8303170462 | |
| Download: ML20069C214 (2) | |
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P.O. BOX 5000 - CLEVELANO. OHIO 44101 - TELEPHONE (216) 622-9800 - lLLUMINATING BLDG. - 55 PUBLICSOUARE Serving The Best Location in the Nation MURRAY R. EDELMAN vice enesioeNT March 9, 1983 NUCMAR Mr. James G. Keppler Regional Administrator, Region III Of fice of Inspection and Enforcement U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137 RE:
Perry Nuclear Power Plant Docket Nos. 50-440; 50-441 Potential Breach of Seal Integrity Defect of Hydrogen Igniters
[RDC 65 (83)]
Dear Mr. Keppler:
This letter serves as the Interim Report pursuant to 10CFR50.55(e) concerning the potential breach of seal defect associated with hydrogen igniters Model 6043, supplied by Power Systems, a Morrison-Knudsen Division. This condition was first reported to Mr. F. Jablonski of your office on February 7,1983, by Mr. J. Kerr for The Cleveland Electric Illuminating Company (CEI). This report contains a description of the deficiency and corrective action taken.
Description of the Deficiency Power Systems is supplying hydrogen igniters Model 6043 for the Perry Nuclear Power Plant (PNPP) Units 1 & 2 that will be used inside containment to maintain the post LOCA hydrogen concentrations below the applicable limits.
On January 28, 1983, Power Systems notified the Nuclear Regulatory Commission under 10CFR21 that a potential defect had been identified concerning breach of seal integrity of the hydrogen igniter glow plug component.
This notification was transmitted to CEI by Power Systems letter dated February 2,1983.
The potential breach of seal integrity defect af fects 24 hydrogen igniters which were shipped to PNPP, the initial shipment only. The defect occurred in the cover plate assemb1y, which houses the glow plug, and the glow plug.
It has been determined by the vendor that the potential breach of seal integrity was caused by leakage past the seating surf ace between the glow plug and cover plate and subsequently through the ceramic material which covers the exposed tip of the glow plug.
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,I Mr. Jtmes G. Ksppist 2-March 9, 1983 Corrective Action-The potentially. defective initial shipment of twenty-four (24) hydrogen igniters was returned to Power Systems, a Morrison-Xnudsen Division, Rocky Mount, North Carolina, on February 2, 1983. Power Systems will rework / repair the returned hydrogen igniter cover plate assemblies and the glow plug.
In r
order to assure that the breach of seal integrity rework / repair accomplished is sufficient-to correct _the potential defect, the pneumatic test of the coverplate with the installed glow plug shall be witnessed by manufacturing surveillance personnel.on 100% of the returned hydrogen igniters. We are presently planning to submit our final report on this subject by April 29, 1983.
- Please call if there are additional questions.
' Sincerely, h
%s Murray R.
elman Vice President Nuclear Group MRE:pab cc:
Mr. M. L. Cildner NRC Site Office Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C.
20555 U.S. Nuclear Regulatory Commission c/o Document Management Branch Washington, D.C.
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