ML19241A764

From kanterella
Jump to navigation Jump to search
Confirms 790622 Telcon Re Westinghouse 790621 Notification of Possible Heatup of Steam Generator Level Transmitter Ref Legs If High Energy Line Break Occurs Inside Containment
ML19241A764
Person / Time
Site: Farley  Southern Nuclear icon.png
Issue date: 06/22/1979
From: Hairston W
ALABAMA POWER CO.
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
FNP-79-0762, FNP-79-762, NUDOCS 7907090364
Download: ML19241A764 (1)


Text

'.

7% 29 op _

wo'

/

- - 4U Alabama Power P. O. Drawer 470 Ashford, AL 36312 FNP-79-0762 June 22, 1979 Mr. J. P. O'Reilly, Director U. S. Nuclear Regulatory Commission 101 Marietta Street, N.W.

Atlauta, Georgia 30303

Dear Mr. O'Reilly:

This is to confirm the telephone call to Mr. Dick Wessman (NRC) by Mr. J. D. Woodard (APCo) at 1545 haurs on Juce 22, 1979.

Alabama Power Company was notified at 1400 hours0.0162 days <br />0.389 hours <br />0.00231 weeks <br />5.327e-4 months <br /> on June 21, 1979, by Westinghouse that a high energy line break inside containment could result in heatup of the steam generator level transciitter reference legs. A resulting level bias caused by reference leg density decrease could delay or prevent automatic generation of reactor trip and auxiliary feedwater initiation signals by low-low steam generator water level bistables. .-

Alabama Power Company is evaluating correctivw action that may be required.

Unit 1 is currently in Mode 5. This condition was discussed with Mr.

Wessman at 0830 hours0.00961 days <br />0.231 hours <br />0.00137 weeks <br />3.15815e-4 months <br /> on June 22, 1979.

This condition is being reported under the potential applicability of Technical Specification 6.).1.8(h).

Further details will be furnished in the 14 day follow-up report.

Sincerely yours, ,

./

. G. Hairston, III Plant Manager WGH/KWM:weh cc: H. O. Thrash R. D. Hill File g}g 309 0 07 1 d

6i ,s

( y' - ,; apv 7907090 '4 '