ML20050C084

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Deficiency Rept Re Diesel Generator 2A Fan Belts Jumping & Flapping at Speeds Above 700 Rpm.No Margin Available for Adjustment for Belt Stretch.Evaluation Being Made to Determine Cause & Corrective Actions
ML20050C084
Person / Time
Site: Saint Lucie NextEra Energy icon.png
Issue date: 03/17/1982
From: Hrig R, Robert E. Uhrig
FLORIDA POWER & LIGHT CO.
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
10CFR-050.55E, 10CFR-50.55E, L-82-103, NUDOCS 8204080118
Download: ML20050C084 (1)


Text

% g P O. 80X 529100 MI AMI, F L 3315?

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' N FLORIDA FOWER & LIGHT COMPANY d

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g; March 17, 1982 7 L-82-103

% w Qph $5.00 b Mr. James P. O'Reilly, Director, Region II Office of Inspection and Enforcement o

P M

U.S. Nuclear Regulatory Commission 332-8Z 101 Marietta Street, Suite 3100 Atlanta, GA 30303

Dear Mr. O'Reilly:

Re: R II: JP0 u N

50-389 FAN i.:ELT PROBLEM DURING INITIAL STARTUP 0F DIESEL GENERATOR t

-t o On February .1.0,1982, FPLidentified,viatelecon,apotential10CFR5055(e)! ,

condition existing at the site involving the diesel generator 2A fan belts.

During initial startup and testing, it was observed that the fan belts'bY they diesel generator 2A unit would jump and flap violently at speeds abovd *700 rpm. ~

At present nearly all adjustments were utilized to make the unit run. 7hus no margin is available for future adjustment for expected belt stretch. Iii addition, it was noted that fans on diesel generator 2B have a different bearing, but these belts worked satisfactorily.

The diesel generator vendor Power Systems has been contacted. An evaluation is currently being performed to determine the cause and corrective action for the concern. We expect to complete our evaluation and submit a response for this potential 10CFR 50.55(e) concern by June 4, 1982.

Very truly yours, p 2 e obert E. Uhrig Vice President Advanced Systems and Technology ggC1ME Ib 8204000118 820317 DR ADOCK 05000 PEOPLE. . SF.RVING PEOPLE