ML19316A621

Discusses Possible Hot Tearing Problem on Inside Surfaces of B&W Control Rod Drive Motor Tubes Per 720511 Meeting W/B&W. Requests Mechanical Engineering Branch Technical Assistance & Presence at 720606 Meeting W/Supplier

ML19316A621
Person / Time
Site:	Davis Besse, Oconee, Arkansas Nuclear, North Anna, Crystal River, Rancho Seco, Midland, Crane
Issue date:	06/06/1972
From:	Anthony Giambusso US ATOMIC ENERGY COMMISSION (AEC)
To:	Hendrie J US ATOMIC ENERGY COMMISSION (AEC)
References
NUDOCS 8001130134
Download: ML19316A621 (1)

Text

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JUN G 1372 J. M. IIcadrie, Deputy Director for Technical Review Directorate of Licensing AIR PROCEDURES FOR TECilNICAL ASSISTANCE RIQUEST FOR REVIEW OF PR B6W CONTROL ROD DRIVE MOTOR TUBE DISCONTITUITIE 972 necting in Babcock 6 Ullcox (B&U) informed the AEC at a Ma b

on all on the plants having L&W USSS are suspect of containing hot tearsB&W inside tube surface.

They tentatively or repincenent of sonc of these CRD asacablics.

t r tubes some proposed several nothods for repairing these CRD no o d

irenents. Other of which vould involve exemptions fron AS!!E co e requ for these notor possibilitics are to lower the design requirements h w the acceptability tubes or present a fractutc nochanics analysis to s o i

The assistance of the existing t otor tubes with these discontinuit cs.f the proposed of the Mechanical Engineering Branch in the review o l rod drive repair procedures and design requirements for B&W controIn this rega 6, 1972 notor tubes is requested.

Mechanical Engineering Branch be represented at. the J ility.

Peltier Any questions regarding this matter should be directed to I.

nectinS (Extension 7548) of PWR Branch No. 4.

Original signed by A. Giambusso A. Gianbusso, Deputy Director for Reactor Projects Directorate of Licensing F. Schroeder, L cc:

R. C. DcYoung, L DISTRIBUTION R. R. Maccary, L Docket Files (50-269/270/287/346/404 Cer. tral Files D. Knuth, L 302/329/330/312/313)

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