ML19247A343
| ML19247A343 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 06/25/1979 |
| From: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Clayton F ALABAMA POWER CO. |
| References | |
| NUDOCS 7907310001 | |
| Download: ML19247A343 (2) | |
Text
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'c, UNITED ST ATES if NUCLE AR REGUL ATORY COMMISSION 5
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ATLANTA GE ORGI A 30303
'g 2 # IUO In Reply Refer To:
RII:JPO 50-348 Alabama Power Company ATTN :
F. L. Clayton, Jr.
Senior Vice President P. O. Box 2f>41 Birmingham, AL 35291 Gent emen:
Enclosed i s IF Bulletin 79-13 which requires action by you with regard to your reac tor f acility(ies) wi th an operating license.
never Should you have any questions regarding this Bulletin or the actions required by you, please contact this of fice.
Sincerely, t
s Ja=es P. O'Feilb Director
Enclosures:
1.
I E Bu l l e t i n '.c. 79-13 2.
List of IF Bulletins Issued in 1.ast !?
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. Alabama Power Comi.ny cc w/ encl:
A. R. Barton Executive Vice President Post Office Box 2641 Birmingham, Alabama 35291 J. T. Young Vice President-Production Post Office Box 2641 Birmingham, Alabama 35291 C. Biddinger, Jr.
Manager-Corporate Quality Assurance Post Office Boa 2641 Birmingham, Alabama 35241 H. O. Thrash Manager-Nuclear Generation Post Office Box 2041 Birmingham, Alabama 35291 H
G. Hairston, 111 Plant Manager Drawer 470 Ashford, Alabama 36312 R. E. Hollands, Jr.
QA Supervisor Post Office Box l Ashford, Alabama 36312 e',
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UNITED STATES NUCLEAR REGULATDRY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGIDN, D.C.
20555 June 25, 1979 IE Bulletin No. 79-13 CRACKING IN FEEDWATER SYSTEM PIPING Description of Circumstances:
Indiana and Michi;;an Power Company notified the NRC of On May 20, 1979, their D. C. Cook Unit 2 facility.
The cracking in two feedwater lines at cracking was discovered following a shutdown on May 19 to investigate leakage identified in the Leaking circumferential cracks were to two steam generator nozzle elbow welds.
inside containment.
16-inch feedwater elbows adjacent indications in all eight radiographic ex mination revealed crack this location on both Units I and 2.
Subsequent steam generator feedwater lines at to all Pk'R licensees by the Office of On May 25, 1979, a letter was sent Nuclear Reactor Regulation which inf ormed licensees of the D. C. Cook f ailures and requested specific inf ormation on f eedwater systec design, f ab inspection and operating histories.the Office of Inspection and Enforce =ent requested the cracking problec, to immediately conduct volumetric licensees of PWR plants in current outages examination of certain f eedwater piping welds.
several other licensees with Westinghouse steam As a result of these actions, Southern Calif ornia Edison reported on generators reported crack indications. radiographic examination revealed indica June 5, 1979, that f
in feedwater nozzle-to-piping welds on two of three steam generators orepor ted that 1.
On June 15, 1979, Carolina Power and Lighttheir H. E. Robinao San Onofre Unit radiography shwed crack indications in similar locations at 18, 1979, that radiography Duquesne Power and Light confirmed on JuneI f eedwater piping to vessel 2.
Unit has shown cracking in their Beaver Valley UnitPublic Service Electric a oozzle weld.
Wisconsin Public Service I also has crack indications.
to cut out a feedwater nozzle-to-pipe veld 1979 that Salem Unit company decided on June 20, 1979 As of f or metallurgical examina tion.
which contained questionable indication,seven other PWR f acilities bave inspected June 22, 1979 and since May 25, 1979 finding cracking indications.
the f eedvater nozzle-to-pipe welds without The feedwater nozzle-to-pipe configurations for D.C. Cook a
& - A fre shown on the attached figures
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joint detail showing t he prir DUPLICATE DOCUMENT WQg are shown on the attached fil Entire document previously entered Or March 17, 1977, during hes i
1)r i t 1, a leair was discovere into system under:
]Q[ygg]p'{g the 16-inch diameter f eedwate ANO nondestructive examination o No. Of pages:
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