ML20085A464
| ML20085A464 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 04/07/1977 |
| From: | Rogers L BABCOCK & WILCOX CO. |
| To: | Colitz J, Herbein J, Geoffrey Miller METROPOLITAN EDISON CO. |
| References | |
| TASK-*, TASK-03, TASK-3, TASK-GB GPU-0391, GPU-391, REM-I-315, REM-II-30, NUDOCS 8307060510 | |
| Download: ML20085A464 (2) | |
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Babcock &Wilcox
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Mr.,J. G. Herbein u.
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h Hetropolitan L11 son Company
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Mr. J. J. Colitz
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Mr. G, P. 11111ac e
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Subject:
. Grahan Heliflow Letdown Coolers
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Gentlemen:
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There have been several occurrences of failures of the subject c,oolers at *.. :.,.. ;.
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BW is involved in a follow-up proGran to determine.
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i coolers. You vill be advised of the prog: ess in BW's evaluation program
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as infor=ation is developed.
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In the-interin period, it is reccramended that Het-Ed ad GPU, as appropriate..* 77.. i-operate both cooler units in parallel whenever possible. This action vill '..
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place the standby cooler in service, the reactor coolant should be admitted i*
slowly in order to nin'-f:e the resultant thernal transient.
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- i'est procedures and operating it.structior.s can be modified to accomplish p-l.
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If you have any further questions, plesse do at hesitate to contact me.
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Very truly yours.
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