ML20126D160

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Final Deficiency Rept Re Improper Installation of Shaft Fans for Pump Motors.Caused by Improper Location of Drive Fans Causing Excessive Motor & Motor Bearing Temps.Inboard & Outboard Shaft Drive Fans Interchanged by Contractor
ML20126D160
Person / Time
Site: North Anna Dominion icon.png
Issue date: 04/14/1980
From: Sylvia B
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
References
339, NUDOCS 8004180446
Download: ML20126D160 (1)


Text

VzmoxxzA Ez.zcraze Ann Powna COMPANY Ricuxown.Viato xzA sonet NT11 14, 1910 Mr. Jane n P. O'Reilly Director Ca ri a l '70 3%

of fice of Inspec t ion .ind Fni'orcerent PC/iFr than U. S. Suctuar #eeulatory Com41ss ion Nc ke t "o. 50 'l30

'.trion II i'ernit So. CPPH-7B 101 cla rie t ta St r.ee t . 3uita 3100 Atlanto. C.c o rs,i a '10303 Tear "r. fi'F illy:

Pursuant to th.1 3rovisionn of 10CFR50. 55(e) the ? Kc. heinn I t we a notified on a ren 14, 1940, that the shaft inns for botn Cnf t 2 auxiliary feedwater pump notors had Iwen inctalled improperly and that the condition could have

!cd to ponniole motor failure due to exceenive mtor and mo+or bearine j tenneratures during pump oce:rntion. h e incor re ct fan installation was Jincoverad while cizassembliny, auxiliary feedvater punp notor 2-Fkt-P-33 an a result of high bearinr tenperatures observed durin initial rotor tents. ,

1 Tsot h punn notorn we re taken to nn outatte 9!ectrieni ocuinm?nt comnanu I were tSey 'vre coraired by interchangine the inhoard and outhoard shaf e  !

drive inns thereby sittistino then in tPet e r orrart l oca tirri. The no+nt-

,irf ven anytliary veediator ain-ne Fcue =iince unde rconn extensive testier durina ubich occanteklo nuen entr. m etninod.

'. tie consti tuten our Her t rarcrt on t h i s -a f t e r. chould you require f tir t he r i n #prnat i on , a t e n se contact this oUice.

Ve ry t ruly you rs ,

ORIGIhAL SIGNED BY

3. R. SYLVIA

?. P. Fylvia Unnerer "uclear %erationn nnd Maintenance cc: Mr. Victor Stello, Director l o f 'ir e. of Inspretion and Enforcement Str. Farold it. Pcnton, Pirector of f ten of Nelear Peactor Eerulation Q/$

s6 do 800.4180446.-

$ 4