ML19263C363
| ML19263C363 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 01/31/1979 |
| From: | Manry M GEORGIA POWER CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| PM-79-116, NUDOCS 7902220039 | |
| Download: ML19263C363 (2) | |
Text
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[*:C oui!'Cfli U'tC.*/ii' Syilgt11 January 31, 1979 FM 116 PLANT E. I. HATCH Update of Letter of 1/30/79 Concerning Unit 1 Scram of 1/24/79 Mr. James P. O'Reilly United States Nuclear Regulatory Commission Region II Suite 3100 101 Marietta Street Atlanta, Georgia 30303
Dear Sir:
3
'On January 30, 1979, a letter was sent to you depicting the events leading to the scram of Hatch Unit I on 1/24/79.
Also included was the information con-cerning the, cause, the repairing of Ell-F015A, and our plans to leak rate test the Ell-F015A valve.
Additionally, we mentioned our plans to inspect the torus spray header, the spray header piping and hangers for any possible damage before making a determination en proceeding with plant start-up.
The leak rate test of valve Ell-F015A was satisfacto-ily completed on the evening of 1/30/79.
The following areas of the torus were inspected on 1/30/7) with the indicated results:
a.
RHR, Torus Spray Heaoer Loop "A" piping welds: Welds were visually in-spe'cted and there were no indications of cracked of defective welds.
b.
Loop "B" piping welds:
Welds were visually inspected and there were no indications of cracked or defective welds.
c.
Loop "A" hangers and restraints:
Hangers cn the piping from the Ell-F027A
- valve to the X-211A torus penetration were visually inspected and no abnormalitier were found.
d.
Loop "B" hangers and restraints:
Hangers on the piping from the Ell-F027B valve to the X-211B torus penetration were visually inspected and no abnormalities were found.
e.
Torus Spray Header Surface Paint:
Paint appears to be worn on pipe in area of the spray nozzle clue.ters, due possibly to high pressure steam or water impinging against pipe.
In regards to blistering or scalding of paint on piping there is no physical evidence of ar.,
occurrence.
On remaining torus spray header piping, there was not any evidence of blistered or scalded (h
paint.
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Janua ry 31, 1979 PM-79-ll6 f.
Surface Painting of Torus Shell:
Interior surface paint inspection of the torus shell did not reveal any abnormal conditions other than the shell appears dirty due possibly to water turbulence of the pool.
g.
Torus Header and Associated Supports: A couple of hangers did appear to be slightly bent; however, structural integrity of the hangers was not violated.
Repair of the hangers is not considered necessary due to minor displacement of the hangers.
The deviations do not appear to be caused by possible pipe movement with the exception of one hanger.
This hanger does not. affect the integrity of piping and cannot be determined when it occurred.
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$2 92%:,:
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Plant Manager TLE/bvw e
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