ML19338D655

LER 80-044/03L-0:on 800816,while Operating at 30% Power, Boiler Feed Pump a Was Removed from Svc Due to Unstable Governor Controls.Boiler Feed Pump B Was Out of Svc Also. Caused by Governor Worm Gear Being Loose on Shaft

ML19338D655
Person / Time
Site:	Fort Saint Vrain
Issue date:	09/15/1980
From:	PUBLIC SERVICE CO. OF COLORADO
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19338D654	List: ML19338D653 ML19338D655
References
LER-80-044-03L, LER-80-44-3L, NUDOCS 8009230614
Download: ML19338D655 (1)

Text

NRC FC And 364 U. S. NUCLEAR REIOLATO"Y COMMISSION (7 77) .

. LICENSEE EVENT REPORT CONTROL SLCCK: l 1 l l l l (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) lo I l 8l l9 Cl Ol

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F l S l V J 1l@l UCENSEE CODE 14 15 0 l 0 l -l 0 l LICENSE 0 l 0 NUM8ER l 0 l 0 l - l 0 l 0 25l@l 264 l 1UCENSE l 1 I 2TYPE l 0Jol@l57 CAT l l@

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i 8 60 6' COCK ET NUMBER E\ l NT DESCRIPTION AND PROS ABLE CONSEQUENCES h I o 121 l At 0110 hours0.00127 days <br />0.0306 hours <br />1.818783e-4 weeks <br />4.1855e-5 months <br /> on August 16, 1980, while operating at 30% the rmal oower and 60 %'e , "A"l

[o i3 l l boiler feedpump uns removed from service due to instability of speed and governor i i o l 41 l controls. "B" boiler feedpump was out of service at the time due to leakage at the l

o;3 ; discharge check valve. This is being reported as a degraded mode of LCO 4.3.2 per l l o is j l Fort St. Vrain Technical Specification AC 7.5.2(b)2. No accompanying y cy rence or l 1 o 17 l l probable consequences. No affect on public health or safety. i I o Ie I I I

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l i j o i l Cause of governor control instability was determined to be due to the governor worm I tilil [ drive gear being loose on the shaf t. The gear is being remachined and the shaf t is I

,,,,,I being sent off-site for metal spraying.  ;

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PHCNE: (303) 785-2253 E Y '