ML19256C955
| ML19256C955 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 06/22/1979 |
| From: | Klingler G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | |
| References | |
| PNO-79-186, NUDOCS 7910150784 | |
| Download: ML19256C955 (1) | |
Text
L PRLLIMINARY NOTIFICATION June 22, loM PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE--PNO-79-186 This preliminary notification constitutes EARLY notice of event of POSSIBLE safety or public interest significance.
The information presented is as initially received without verification or evaluation and is basically all that is known by IE staff on this date.
FACILITY:
Carolina Power and Light Company Brunswick, Unit Nos. I and 2 Docket Nos. 50-325 and 50-324 Southport, North Carolina
SUBJECT:
PROBLEM IN REANALYSIS OF PIPING STRESSES The licensee reported on Jurb 22 that three points of potential overstress condition had been identified during a reanalysis of piping stress for motor operator eccentricity.
The overstress points are located on the one-half inch reactor head vent bypass pipes on Units I and 2 and a one-inch drain pipe in the high pressure coolant injection system on Unit 2.
The stresses at these points reportedly are above code allowable but below maximum yield.
Unit 1 is operating at 100 percent power; Unit 2 is operating at 64 percent power.
The licensee has informed NRR of these results and is evaluating the continued safe operation of the units.
Media interest is not expected. Neither the licensee nor the NRC plan a news release.
The State of North Carolina has been informed.
Region II (Atlanta) received notification of this occurrence by telephone conversation from the licensee at 1:30 p.m. on June 22.
Contact:
GKlingler, IE x28019 FNolan, IE x28019 SEBryan, IE x28019 Distribution:
Transmitted H St b:Id Chairman Hendrie Commissioner Bradford S. J. Chilk, SECY Commissioner Kennedy Commi ssioner Ahearne C. C. Kammerer, CA Commissioner Gilinsky ACRS (For Distribution)
Transmitted: MNBB 4 ',fD P. Bldg 4'([
V. Stello, IE L. V. Gossick, EDO H. R. Denton, NRR Region L t/.*Uc H. L. Ornstein, EDO R. C. DeYoung, NRR J. J. Fouchard, PA R. J. Mattson, NRR N. M. Haller, MPA D. Vassallo, NRR (MAIL)
R. G. Ryan, OSP D. Eisenhut, NRR J. J. Cummings, OIA H. K. Shapar, ELD SS Bldg f*oc R. Minogue, SD W. J. Dirchs, NMSS S. Levine, RES PRELIMINARY NOTIFICATION 49101H7IkJ
.