ML20249B126
| ML20249B126 | |
| Person / Time | |
|---|---|
| Site: | Pilgrim |
| Issue date: | 02/12/1976 |
| From: | Dreher F, Roy G, Thornburg H NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | |
| References | |
| PNO-76-024, PNO-76-24, NUDOCS 9806220088 | |
| Download: ML20249B126 (1) | |
Text
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a ,r Fcbruxry 12, 1976 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE
! -PNO-76-24 This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or publis interest significance. The information '
presented is as initially received without verification or evaluation and is basically all that is known by OIE staff as of 2:00 P. M. on date of this notification. IT SHOULD BE SPECIFICALLY NOTED THAT THIS NOTIFICATION MAY CONTAIN INFORMATION THAT LATER MAY BE DETERMINED TO BE INACCURATE OR INCONSISTENT. AN OFFICE OF INSPECTION AND ENFORCEMENT NOTIFICATION OF AN INCIDENT OR OCCURRENCE (BLUE SifEET) SUBSEQUENTLY WILL BE ISSUED IF W/RRANTED.
Facility: Pilgrim I (DN 50-293)
Boston Edison Company Plymouth, Massachusetts
Subject:
PRELIMINARY INSERVICE INSPECTION FINDINGS DURING REFUELING OUTAGE An IE inspector at the Pilgrim I site informed the Region I office that preliminary inservice inspection (ISI) findings had identified an indication in the "A" recirculation loop's 4 inch bypass pipe line.
ISI is also being conducted, using improved UT inspection apparatus, to reinspect a manufacturing flaw in one of the 12-inch recirculation system inlet nozzles to the reactor pressure vessel. This nozzle flaw was previously evaluated by NRR and found to be acceptable in early 1974. Preliminary ISI results indicate the flaw to be larger in size than that observed previously when less sophisticated equipment was employed.
Region I has dispatched a specialist in UT to the site to observe the work in progress. '
Media interest is expected because of the Pilgrim 2 hearings. The Commonwealth of Massachusetts has been and is being kept informed. A press release is not planned. (
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Region I, Philadelphia, PA. received notification of this occurrence by telephone from the project inspector at the site at 10:00 a.m., February 12, 1976. , f C
Contact:
FADreher, IE x27261 GWRoy, IE x27353 HDThornburg, IE x27353 $
Distribution:
Chairman Anders Commissioner Mason Commissioner Gilinsky S. J. Chilk, SECY Commissioner Rowden G. F. Murphy, JCAE Commissioner Kennedy C. C. Kammerer, CA L. V. Gossick, J. G. Davis, OIE 4
B. C. Rusche, NRR J. A. Harris, PA J. La Fleur, ISP T. J. McTiernan, AIA K. R. Chapman, NMSS H. K. Shapar, ELD 4
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PRELIMINARY NOTIFICATION - NOT FOR PUBLIC DISCLOSURE
' ry 9006220088 760212 -
PDR I&E
. PNO-76-024 PDR ,
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