ML20086C598

Interim Deficiency Rept Re Reactor Coolant Pumps 11,12,13 & 14 Connection to Reactor Coolant Piping.Pump Mountings Created Mismatch Between Pump Discharge Nozzles & Reactor Coolant Cold Leg Piping

ML20086C598
Person / Time
Site:	Salem
Issue date:	05/29/1973
From:	Betz J Public Service Enterprise Group
To:	Kruesi F US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML20086C587	List: ML20086C598 ML20086C607 ML20086C619 ML20086C625
References
NUDOCS 8311290022
Download: ML20086C598 (2)

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a John F. Betz Pubhc Service Electric and Gas Company 80 Park Place Newark, N.J 07101 201/622 7000 '

vice President in Charge of Electnc Operation -

May 29, 1973

! U.S. Atomic Energy Commission Director of Regulatory Operations 7920 Norfolk Avenue Bethesda, Maryland 20014 Attention of Mr. Frank E. Kruesi.

, Director Gentlemen: '

NO. 11, 12, 13 AND 14 REACTOR COOLANT PUMPS MODIFICATION TO VOLUTE N0ZZLES i SALEM NUCLEAR GENERATING STATION I

No. 11, 12, 13 and 14 Reactor Coolant Pumps could rot be connected to the reactor coolant piping because embedded '

pump mountings created a mismatch between the pump discharge nozzles and reactor coolant coldrleg piping. The volutes were ,

returned to Westinghouse, Tampa Division where the nozzles were built up in accordance with field measurements to permit an accurate fit-up. This work was not reported at the time ~

and during' subsequent discussions with.~the Directorate of -

Regulatory Operations, Region,1, Jit:was agreed to report. this item to complete the recordT g. ^

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The procedure followed was to modi'fy the pu'up support::

for alignment in accordance with approved-Electric Engingering '

Department drawings. Each pump was.placed-on its support, making adjustments to foot seating areas.as necessary.to provide forfproper .

seating and: thermal expansion.- With t'ae pumps firmly mounted, accurate measurements were taken to ' determine- the amount of.

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weld build-up that would be required to obt.ain; proper; fit-up to the reactor coolant. cold leg piping. The volutes were-then

' shipped to Westinghouse, Tampa Division for modification.

Weld and NDT proc.edure s , qualifications of operators-and procedures used .by Westinghouse .-were reviewed and ap' proved by PSE&G. Quality Assurance surveillance 6fathe work.at Westinghouse', -

Tampa Division was followed continuously..by PSE&G Quality Assurance Engineers and/or'QA Engineers \from Southwest-Research _

' Institute. Representatives cof _ the PSE&G Electric Engineering -

. Department performed frequent inspections ofLthe welding activities.

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< b . 'S . Atomic Energy 5 73 Commission All modifications to these volutes have been com-pleted snd the four volutes have been returned to the Salem plent s f.te . The records of this work, audits, etc., are available for your review at the Salem site.

If you have further questions, we will be pleased to discuss them with you.

Very truly yours, m

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CC Mr. J. P. O'Reilly Newark, N. J.

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