ML20138B117

Supplemental Part 21 Rept Re Lower Overrun Assemblies in Robertshaw Valves Installed on Diesel Generator Sets Possibly Failing Safe to Full Cooling Position. Cotter Pins Installed

ML20138B117
Person / Time
Site:	Farley
Issue date:	12/02/1985
From:	Moriarty J COLT INDUSTRIES, INC.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
REF-PT21-85, REF-PT21-85-503-000, REF-PT21-86-004-000 PT21-85-503, PT21-85-503-000, PT21-86-004-000, PT21-86-4, NUDOCS 8512120215
Download: ML20138B117 (1)

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@ lggg Fairbanks Moese Engine Division 701 Lawton Avenue

@ Belost. Wisconsin 53511-5492 Teiephone: 608/364 4411 Telecopter; 608/364-0382 December 2, 1985 Office of Inspection & Enforcement U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Ill. 60137 Attention: Mr. James G. Keppler, Director, Region III Subj ect: Colt Industries-Fairbanks Morse Engine Division Emergency Diesel Generators Possible Thermostatic Valve Malfunction Fail Safe To " Full Cooling Position" Part 21 Report Supplemental Report No. 10 Alabama Power Co., Farley Units 1 and 2 ,

Reference:

May 25, 1982; June 28, 1982 and September 17, 1982 Part 21 Reports - Robertshaw Valves - same subject Gentlemen:

The lower overrun assemblies in the Robertshaw valves installed on the Diesel Generator Sets at Alabama Power Co., Farley Units 1 and 2 have been replaced with overrun assemblies utilizing cotter pins to positively lock the nut to the stem.

The units are now free of the reported potential defect.

A copy of this report is being forwarded to the utility involved.

Very truly yours,

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.M. Moriarty N JNM/jl MANAGER UTILITY S ES cc: Alabama Power Co.

P.O. Box 2641 Birmingham, AL 35291 Attn: W.G. Hairston, III U.S. Nuclear Regulatory Commission c/o Document Management Branch Washington, D.C. 20555 '[ ,

Robertshaw Controls Company P.O. Box 400 Knoxville, TN 37901 Attn: T.T. Howell, Quality Mgr. gy 6 9 8 O u c ~. ..w c.,

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