ML20002D636

Ro:On 801209,inservice Insp Revealed That Required Valve Operability Tests Not Performed During Third Calendar Quarter 1980.Valves Successfully Tested.Action Taken to Assure Timely Review of Valve Test Data

ML20002D636
Person / Time
Site:	Millstone
Issue date:	01/13/1981
From:	Mroczka E NORTHEAST NUCLEAR ENERGY CO.
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
MP-2-4567, TAC-8320, NUDOCS 8101210592
Download: ML20002D636 (2)

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Jar'Jary 13, 1981 itP-2-4567 Mr. Boyce H. Grier Director, Region I Office of Insp2ction and Enforcement U.S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406

References:

1.

Facility Operating License 2.

Docket 50-336 3.

ASME Boiler and Pressure Vessel Code,Section XI, 1974 Edition with Addenda through Summer 1975, Article IWV-3000

Dear Mr. Grier:

The following is provided for your information.

On December 9,1980, a routine review of station records by the Millstone Unit 2 Inservice Inspection Coordinator identified that some valve operability tests required by Reference 3 were not performed during the third calendar quarter 1980. - A detailed review of valve operations in this period indicated the following required tests were not documented:

68 of 159 valve excercising tests 34 of 91 required stroke time measurements 42 of 49 valve fail position tests The reactor plant was in cold shutdown for approximately half the test interval. During cold shutdown most of these valves are not required to be operable. Valves which were worked on during the cold shutdown were fully tested prior to start-up. All other valves have since been tested.

None failed to meet acceptance criteria. Thus no valve failures went undetected.

Action has been taken to assure Inservice Testing of pumps and valves is performed when scheduled.

In addition, action is being taken to assure more timely review of valve test data. These actions will prevent recurrence of this situation.

Yours truly, NORTHEAST NUCLEAR ENERGY COMPANY a

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. Mroczka Millstone Nuclear Power Station t

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Page 2 MP-2-4567 January 13, 1980 g

Docket 50-336 ASME Boiler and Pressure Vessel Code, cSection XI - 1974 Edition with Addenda through Summer 1975, Article IWV-3000 cc: Director 0ffice of Inspection an'd Enforcement, Washington, D.C.

Director, Office of Management Information and Program Control, Washington, D.C.-

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U. S. Nuclear Regulatory Commission, c/o Document' Management Branch, Washington, D.C.

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