ML20096F571
| ML20096F571 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 08/23/1984 |
| From: | Nix H GEORGIA POWER CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| 50-321-1984-009, 50-321-1984-9, GM-84-126, NUDOCS 8409100121 | |
| Download: ML20096F571 (2) | |
Text
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. Georgi 3 Power Company.
j
- Post Office Btx 439 - > -
8axley, Georgi) 31513
. Telephone 912 367-7781 e
'912 537-9444
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84 AUG 27 P l 43 GeorgiaPbwer
-Edwin I. Hatch Nuclear Plant 2
i August 23, 1984 GM-84-726
' PLANT E.
I. HATCH Special Report Docket No. 5-321 United States Nuclear Regulatory. Commission Office of Inspection and Enforcement
. Region II Suite 3100 101'Marietta Street Atlanta, Georgia 30303 ATTENTION:
Mr. James P. O'Reilly Attached is Special Report No.
50-321/1984-009, Revision l.
The contents of.this report are referenced in telegram 50-321/1984-008 dated 07/23/84.
This report is required by Hatch Unit 1 Technical Specifications Section 3.13.2, ACTION b.1 and Hatch Unit 2 Technical Specifications Section 3.7.6.1, ACTION b.2.c.
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H.
C. Nix
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g General Manager HCN/TLE/vlt xc:
R. J.
Kelly G. F. Head J. T.
Beckham, Jr.
P. D. Rice K. M. Gillespie S.
B. Tipps R. D.
Baker Control Room Document Control i
8409100121 840823 PDR ADOCK 05000321 s
PDR OFFICIAI, COPY
4_.*
SPECIAL REPORT 50-321/1984-009, Rev. 1 LICENSEE GEORGIA POWER COMPANY FACILITY NAME :
EDWIN I. HATCH DOCKET NUMBER :
50-321 On July 20,
- 1984, at approximately 2000
- CDT, with Unit 1
in steady-state operation at 2412 MWT (approximately 99% power) and Unit 2 in a recirculation pipe replacement outage, the " SYSTEM FLUSH-FIRE PROTECTION WATER" procedure (HNP-1-3363) was being performed.
During the course of this test, the volume in both fire water storage tanks dropped below the 270,000 gallons limit of Un.it 1 Tech. Specs. section 3.13.2.b and Unit 2 Tech. Specs. section 3.7.6.1.b.
Subsequent investigation found that the hydrant flush test was being performed with the electric fire pump maintaining system pressure.
When plant personnel opened a
- hydrant, a
transient pressure drop resulted which in turn initiated both diesel fire pumps.
This pressure drop and the ensuing pressure spike from the start of the diesel fire pumps caused four (4) cooling tower fire protection deluge sprinkler systems to actuate.
The flow of water from this actuation dropped the volume in the fire protection water tanks below the 270,000 gallons (each) Tech. Spec. limit before the system could be l
isolated.
The volume in both tanks was returned to within the Tech. Spec. limite of greater than 270,000 gallons (each) in approximately 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />.
The telegram sent on 7/23/84 on this event indicated this event would f
be reported as special report 1-84-8.
This report number was a typographical error.
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