ML19312E055
| ML19312E055 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 05/02/1980 |
| From: | Daltroff S PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| IEB-80-07, IEB-80-7, NUDOCS 8006030121 | |
| Download: ML19312E055 (3) | |
Text
6 Ib PHILADELPHI A ELECTRIC COM PANY 2301 MARKET STREET P.O. BOX 8690 PHILADELPHI A. PA.19101 SHIELDS L DALTROFF ruc'fR c PR D
80N May 2, 1980 Re:
Docket Nos.: 50-277 50-278 IE Bulletin 80-07 Mr. Boyce H.
Grier, Director Office of Inspection & Enforcement Region I US Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA 19406
Dear Mr. Grier:
This letter is in response to the portion of IE Bulletin 80-07 dealing with plants now in a scheduled refueling outage, forwarded to us on April 4, 1980, concerning BWR jet pump assembly failure.
The " Action to be Taken by Licensees" for
" Plants Now in Sched'uled Refueling Outage Prior to Restart" is restated below with our response.
Action to be Taken by Licensees for Plants Now in Scheduled Refueling Outage Prior to Restart 1.
Visual inspections assisted by TV camera shall be conducted to assess the integrity of the jet pump structures, the hold-down beam assembly, hold-downs, wedge and restrainer assembly.
Particular attertion should be given to areas of unusual wear, failed keepar welds or other evidence of distress that could be indicative of loss of beam assembly preload.
/
2.
Ultrasonic examinations, utilizing GE procedure TP-508.0642 (Rev. A) or equivalent, shall be conducted,to assess the integrity of the jet pump hold-down beams /at the mid length ligament areas bounding the beam bolt.
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f Mr. Boyce H.
Grier Pege 2
Response
The required inspection of Peach Bottom Unit 2 jet pumps was performed on April 17, 18, 19, 20, 1980.
The visual inspection was performed with an un'derwater TV camera.
The jet pump hold down beam inspection was performed following General Electric procedure TP-508.0654, Rev.
B.
This procedure, which is applicable to BWR 4 plants, was used in lieu of the procedure referenced in item 2 above which is applicable only.to earlier plants.
rotained by General Electric personnel The inspection data was qualified to ASNT, Level III and was reviewed and accepted by the Philadelphia Electric Company Maintenance Department's ISI Engineer.
The results of the inspection were acceptable and no reportable crack indications were found by either visual or ultrasonic examination.
It was verified by re-examining jet pumps numbers 9 and 18 that the indications present are geometric reflectors.
Very truly yours,
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COHMONWEALTH OF PENNSYLVANIA ss.
COUNTY OF PHILADELPHIA S.
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Dalt rof f,' being first duly sworn, deposes and says:
That he is Vice President of Philadelphia Electric Company; that he has read the foregoing response to IE Bulletin 80-07 and knows the contents thereof; and that the statements and matters set forth therein are true and correct to the best of his knowledge, information and belief.
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y Subscribed and sworn to before me this 6#. day
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ELI DETH H. BOY No::r ~ ublic Phita.. Phila. Co.'
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.}t yon E.xpitcs Jan.341982 4
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