ML20085F657

Updated AO AO-14-74,revising Description of Occurrence. Quarterly Tests of Pump HPSI-P66A Review Disclosing Pump Discharge Pressure Below Acceptable Range First Observed During Second Quarter 1972 Test

ML20085F657
Person / Time
Site:	Palisades
Issue date:	09/18/1974
From:	Sewell R CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML20085F653	List: ML20085F651 ML20085F655 ML20085F657 ML20085F659 ML20085F665 ML20085F671
References
AO-14-74, NUDOCS 8308230121
Download: ML20085F657 (1)

Text

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/[Q } Consume Power Company

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s Ge seral OHices: 212 West Michsgan henue, JSCkSOn, M'Chigan 49201. Area Code 517 788 05S0 September 18, 1974 s

Directorate of Licensing Re: Docket 50-255 US Atomic Energy Commission '

License DPR-20 Washington, DC 20545 . , Palisades Plant -

'Y A0-lh-Th Gentlemen: gj [

Abnormal Occurrence Report A0-lh-Th was originally submitted on July 22, 1974 with additional information transmitted on August 19, 1974. Following the transmittal of this additional information which completed this Abnormal Occurrence Report, it was decided to reopen the investigation of the operating history of this pump. The results of this investigation follow.

The " Description of Occurrence" section of the Abnormal Occur-rence Report should be revised by adding:

"The quarterly tests of this pump (HPSI-P66A) were reviewed (beginning with the third quarter - 1971). This review disclosed that pump discharge pressure below the acceptable range was first observed during the second quarter 1972 test, and that no further degradation of the pump was observed in subsequent quarterly tests. High-Pressure Safety Injection Pumps P-66B and P-660 demonstrated acceptable test character-istics during this time period."

This investigation also disclosed that following a discussion of the observed low-pressure problem, a decision was made (but not documented) to leave the pump in an operational status and continue to review its performance on future tests.

Operating personnel have been briefed on this occurrence and along with the development of a standard pump performance test proce-dure as stated in the Abnormal Occurrence Report, it is our opinion that problems associated with evaluation of the performance of the safety injection pumps are not likely to recur.

Very truly yours, {d; # '%

8308230121 760412 #3 PDR ADOCK 05000255 PDR f

S Ralph B. Sewell (Signed) 9679 DAB /ds Ralph B. Sewell Nuclear Licensing Administrator CC: JGKeppler, USA 1C COPY SENT IGGION ,