ML19208D395

LER 79-095/03L-0:on 790912,hydrogen Gas Concentration Increased Greater than Tech Spec Limit of 4% for 18 Minutes. Caused by Moisture Entering Recombiner

ML19208D395
Person / Time
Site:	Hatch
Issue date:	09/19/1979
From:	Baxley S GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19208D392	List: ML19208D391 ML19208D395
References
LER-79-095-03L, LER-79-95-3L, NUDOCS 7909280364
Download: ML19208D395 (1)

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f ti FO'il DAIC EVENT DESCitlPT!Of f Af'O PRO 9 ACLE cCNSEQUE!!OES h 10 8 21 lDuring Star _ tup _ operations, the hydrogen _ gas concentration increased creater than T. SJ O 3 IAppendix B Section 2.1.3.h limit of 45. Hydrog_en concentration exceeded O' for apprcix-j g [imately 18 minutes. On 9-15-79 at 1391 MWE preheater problems caused hydrone, to ex _]

lo is j tceed 4 % for approximately 30 minutes. This is a repetitive occurrence as reported j

[FTE 1 [on LER 79-78. There were no effects ep_or, the_public health and u fetLc'ue to these 1

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i o [The_ probable cause for the event er, 9-l?-79 is that while orcheating Off:ms linos 1 8 [noisture entered the Recombiner thus rcducina its .f_cctgHttdng_tcpehi3ity.._3be I g probable cause for the event on 9-15-79 is that preheater termerature was wt _J g ; sufficient to prevent moisture from entering Recombiner and reduced its recombining l g ; capability. Swapped preheaters and recombiners to correct problen. l 7 8 9 00 F A CitiTV y ME THOD CT

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r.,,,..m.. S. X. caxley, Supt. of Operations , , , , . . (912) 367-66RG  ;>