05000334/LER-1980-069, Updated LER 80-069/01T-1:on 800920,motor-driven Fire Pump Motor Failed After Rebuild.Cause Being Investigated.Motor Sent Offsite to Be Rebuilt Again: Difference between revisions

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{{Adams
#REDIRECT [[05000334/LER-1980-069, Forwards LER 80-069/01T-0]]
| number = ML19343A932
| issue date = 11/14/1980
| title = Updated LER 80-069/01T-1:on 800920,motor-driven Fire Pump Motor Failed After Rebuild.Cause Being Investigated.Motor Sent Offsite to Be Rebuilt Again
| author name = Lacey W
| author affiliation = DUQUESNE LIGHT CO.
| addressee name =
| addressee affiliation = NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
| docket = 05000334
| license number =
| contact person =
| document report number = LER-80-069-01T, LER-80-69-1T, NUDOCS 8011240301
| package number = ML19343A931
| document type = LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT
| page count = 2
}}
{{LER
| Title = Updated LER 80-069/01T-1:on 800920,motor-driven Fire Pump Motor Failed After Rebuild.Cause Being Investigated.Motor Sent Offsite to Be Rebuilt Again
| Plant =
| Reporting criterion =
| Power level =
| Mode =
| Docket = 05000334
| LER year = 1980
| LER number = 69
| LER revision = 0
| Event date =
| Report date =
| ENS =
| abstract =
}}
 
=text=
{{#Wiki_filter:___
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$Q EVENT oEsCMIPTION AND PRC8ASLE CONSEQUENCES h t o 121 l The motor-driven fire pump motor failed after being rebuilt a second time.
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CAUSE CESCRIPTICN AND CORRECTIVE ACTIONS 27 li;o1 l The cause for this failure is being investigated further. The motor has been sent ]
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Attachment To LZR 80-69/0lT Beaver Valley Power Station Duquesne Light Company Docket No. 50-334 4
This report is to serve as a follow-up information-source on the status of the.BVPS Unit 1 Motor-Driven Fire Pump [FP-P-1].
Presently, the pump motor is being rebuilt by Westinghouse and is being checked for any oil seal or aligmzent and binding problems. Une chronology of Motor-Driven Fire Pump [FP-P-1] problems is explained in the following.
On February 26, 1980, we submitted a Special Report to you which advised you that the [FP-P-1] pump upper motor bearing was very hot to touch and it was found smoking after an extended run.
From February 26, 1980 through September, 1980, the [FP-P-1] motor parts were ordered and the mater. bearings were replaced onsite.
On September 20, 1980, we submitted LER 80-069/01T to report that the [FP-P-1]
upper motor bearing had burned up after being rebuilt onsite. Debris was found in the cooling water strainer, so the pump was not inspected at this time. The motor was sent to Westinghouse to be rebuilt.
On November 1,1980,.the motor was returned from Westinghouse and was re-installed and subsequently burned up again. At this time, Westinghouse was contracted to i
rebuilt the motor again. Westinghouse was instructed to check.for a bent rotor 1
also. While the pump motor is offsite.the pump vill be removed and inspected for any abnormal problems.
A detailed investigation of 'the fire protection system, including pump ~ failure, is-to be completed and results submitted by December 31, 1980. The results of this fire protection study will be formalized by February 1, 1980.
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}}
 
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Latest revision as of 02:07, 18 September 2025