ML19322E440

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Responds to IE Bulletin 79-28, Possible Malfunction of Namco Model EA180 Limit Switches at Elevated Temps. Contractors to Be Informed & Requested to Identify Affected Switches.Switches Identified to Be Replaced
ML19322E440
Person / Time
Site: Satsop
Issue date: 02/07/1980
From: Renberger D
WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To: Engelken R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
NUDOCS 8003280069
Download: ML19322E440 (1)


Text

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P W shingtOn Public Power Supply System A JOINT OPERATING AGENCY Si e a oo. ... sooo c. . w...u .,o~ w., a,cm.m w... ... . 3 2 ,,o~. < o.3 3 7 s sooo February 7,1980 G03-80-238 Docket Nos. 50-508 32lb, and 50-509 v' A ~ %.)

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Mr. R. H. Engelken, Director 't : \

U.S. Nuclear Regulatory Commission A y(';i!

Suite 202, Walnut Creek Plaza 'N g" 1990 N. California Boulevard N: kr. ?

Walnut Creek, California 94596 '<-cid '

SUBJECT:

WPPSS NUCLEAR PROJECT NOS. 3 & 5 IE BULLETIN 79-28, "POSSIBLE MALFUNCTION OF NAMC0 MODEL EA180 LIMIT SWITCHES AT ELEVATED TEMPERATURES"

Dear Mr. Engelken:

The following is a response to your request for information on the subject IE Bulletin as it applies to the WNP-3/5 projects.

The subject limit switch model has been specified for use at WNP-3/5. All concernsd contractors and subcontractors will be informed of the subject matter and they will be requested to identify, if any, the limit switches which fall in the category mentioned in the Bulletin.

If any limit switches are found such that their serial number falls between 02-79 and 08-79, their top gasket shall be replaced according to the manufacturer's recommendations.

Very truly yours, M

D. L. RENBERGER ASSISTANT DIRECTOR TECHNOLOGY DLR:FJ:crw cc: U.S. Nucleat Regulatory Commission Office of Inspection and Enforcement Division of Reactor Operations Inspection Washington, D.C. 20555 8003280 0 69 (N4