ML20197A835
| ML20197A835 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 04/23/1986 |
| From: | Gucwa L GEORGIA POWER CO. |
| To: | Grace J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| 0166C, 166C, 50-366-1986-001, 50-366-1986-1, NUDOCS 8605120394 | |
| Download: ML20197A835 (2) | |
Text
,
. Georeta Fbvce Ccmpany 333 Piedmont Avenue
, A!!sr*a, Georgia 30308 o
Telephone 404 5264526 Mathng Address:
Fbst Ottice Box 4545 Attanta, Georgia 30302 b
3 g;18 P 1: 20 Georgia Power L T. Cucwe N W#" ""l'"? iM" Manager Nuclear Safety and Ucensing SL-643 0166C April 23, 1986 U. S. Nuclear Regulatory Comission
REFERENCE:
i' Office of Inspection and Enforcement RII: JNG Region II - Suite 2S00 50-366 101 Marietta Street, NW Special Report l
Atlanta, Georgia 30323 1986-001 ATTENTION: Dr. J. Nelson Grace Gentlemen:
Enclosed is Special Report No. 50-366/1986-001. This 30-day report is required by Hatch Unit 2 Technical Specifications Section 3.3.6.8, ACTION b.
Very truly yours, WY &"
L.-T. Gucwa EBS/lc Enclosure c: ifr. J. P. O'Reilly Mr. J. T. Beckham, Jr.
Mr. H. C. Nix, Jr.
NRC Document Control Desk GO-NORMS 8605120394 860423 PDR ADOCK 05000366 S
PDR h
7, Georgia' Power A Special Report 50-366/1986-001 LICENSEE
- GEORGIA 10WER CDMPANY FACILITY NAME: EDWIN I. HA'IGI DOCKET NGEER: 50-366 On March 24,
- 1986, at approximately 0030 GT with Unit 2 in steady-state operation at approximately 2065 MWt (approximately 85% of rated.. thermal power), a contimous alarm was received on fire protection panel 2Z43-P006.
%is alarm was received when a fire detector (2T43-m24G) located in the Reactor R1ilding Steam Chase area failed.
We failure of this detector rea11ted in 29 detectors being inoperable (listed in Technical Specifications Table 3.3.6.8-1 under Reactor R111 ding, Elevation 130 foot in South Cable Tray Area and South CRD Area).
'Itus, the plant could not meet the minim 1m rumber of operable detectors recuired by the table.
We plant initiated a fire watch patrol within 1 bcur as recuired by Technical Specifications Section 3.3.6.8, ACTION a.
%is fire watch patrol will remain in effect until recuired repairs are made, and the fire detectors are restored to operable status.
We actual ca2se of the detector failure cannot be determined at this time. However, the instrument failure was most likely d2e to moisture
.(from small steam leaks in the steam chase ares).
Plans are to replace detector 2T43-N024G during the next extended 02tage on Unit 2 when the steam chase area is accessible.