ML19210C416
| ML19210C416 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 11/07/1979 |
| From: | Clayton F ALABAMA POWER CO. |
| To: | Eisenhut D Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 7911140222 | |
| Download: ML19210C416 (2) | |
Text
Alabama Power Company
'600 North 18th Street Post office Box 2641 Birmingham, Alabama 35291 Telephone 205 323-5341 m
' bo t^c71@n, AlabamaPower C
ie the scuthern eminc s,mtem Novenber 7,1979 Docket No. 50-348 NFC letter concerning surieillance testing errors (dated 9/21/79)
Mr. D. G. Eisenhut, Acting Director Division of Operating Reac+wrs Office of Nuclear Reactor Regulation U. S. Nuclear Regulatorf Camussion Washington, D. C.
20555
Dear Mr. Eisenhut:
As requested in your letter dated Septenber 21, 1979, concerning sur-veillance testing errors, Alabama Pcser Orpany stinits the following response for Farley Nuclear Plant Unit 1.
Respnse: An irr/estigation of reactor trips and safety injections determined that six reactor trips, one safety injection and one safety injection with reactor trip occurred during the performance of surveillance test procedures.
As shch in the table below, only four of the reac+wr trips and/or safety injections were caused by personnel error. The other four were caused by either procedural error (one), equiprent malfunction (one), or maintenance error (two). The procedure leading to the reactor trip has been revised.
RI"s SI's DATE CAUSE X
7-21-77 Personnel Error X
8-12-77 Procedural Error X
X 12-28-77 Personnel Error X
l-12-78 Personnel Error X
5-26-78 Equipnent Malfunction X
6-20-78 Personnel Error X
l-18-79 Maintenance Error X
2-14-79 M1intenance Error Aco!
5 "9
254
//o 7911140 A M
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Mr. D. G. Eisenhut Ncverber 7,1979 Page Potential for problers associated with these occurrences has been previously considered. Managemnt policies and procedures and surveillance procedures have been review d and w.re determined to be adequate. It is plant practice that subsequent to inadvertent safeguards actuation or reacter trips, procedure changes to prevent recurrence are incorporated if appropriate. Current plant surveillance procedures include prorequisites and cautions to avoid challenges to the protective safeguard features. A rate will be written to Plant Operators and Supe.w. isors a:phasizing the inprtance of avoiding unnecessary challenges to the protective safeguard features.
Yours very truly,
~
- .. ), w.w.
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F.-L*. Clayton, Jr.
FIfjr/HRF/nTrb cc:
Mr. R. A. Thctras Mr. G. F. Trowbridge Office of I&E Divn. of Reactor Operations Inspection Washington, D.C.
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