ML20004D545: Difference between revisions
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_ 21 22 23 24 Hf)u f15 s8 IT POn 9. SUPPLt uaNuF ACTuntit EK N A fl r ON PL T MET C laJ@l2_]O tl Lz_JO l's I zlO 36 I oI oI oI o1 33 40 Ir I@ | _ 21 22 23 24 Hf)u f15 s8 IT POn 9. SUPPLt uaNuF ACTuntit EK N A fl r ON PL T MET C laJ@l2_]O tl Lz_JO l's I zlO 36 I oI oI oI o1 33 40 Ir I@ | ||
41 lYl@ lLl@ | 41 lYl@ lLl@ | ||
42 43 l L I 2 t o io 4710 44 13 CAU'*.c DCf.CIUP DON ANO f.OMitLCTIVE ACTIONS | 42 43 l L I 2 t o io 4710 44 13 CAU'*.c DCf.CIUP DON ANO f.OMitLCTIVE ACTIONS lijollThe bolts which hold the motor together broke, allowing the rotor to rest on the Motor bolts and bes. rings were ; | ||
lijollThe bolts which hold the motor together broke, allowing the rotor to rest on the Motor bolts and bes. rings were ; | |||
[g l stator which prevented the motor from running. | [g l stator which prevented the motor from running. | ||
,jireplaced and motor returned to service. This is considered a r.andom failure and ; | ,jireplaced and motor returned to service. This is considered a r.andom failure and ; | ||
i, ; | i, ; | ||
li) j l no recurrence control is required. | li) j l no recurrence control is required. | ||
I l'14 i ! _ | I l'14 i ! _ | ||
Revision as of 19:07, 17 February 2020
| ML20004D545 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 06/04/1981 |
| From: | TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| Shared Package | |
| ML20004D539 | List: |
| References | |
| LER-81-022-03L, LER-81-22-3L, NUDOCS 8106090516 | |
| Download: ML20004D545 (2) | |
Text
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LICENSEE EVENT REPORT I i i l i IPLE ASE PRINT oR TYPE ALL REQUIREo INFoRMATloNI CON IH')! HLOtX. .
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M fel tv, Nr or:;cniPTiON AND PR0fl ABLE CONSEQUENCES h DGCKET NUUSER iW A') EVENT DATE 14 TS REPCRf DATE i
l~U] LDuring urmal weratin, valve M-74-57 motor starter thermal tripped upon opening (T.S. 3.5.B.6 and ;
EE I and closing, rr dering loop 1 containment cooling inoperable.
l mj L3g.7). There was no danger to the health or safety of the public. Redundant 1 There were no previous similar events. [
b y Isystems were available and operable.
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SE Qut NY s AL 32 is OCCURRENCE is R E P0'tf 20 R E V'510N C00E TYPE NO.
n egg iVINTVIAH REPORT No.
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_ 21 22 23 24 Hf)u f15 s8 IT POn 9. SUPPLt uaNuF ACTuntit EK N A fl r ON PL T MET C laJ@l2_]O tl Lz_JO l's I zlO 36 I oI oI oI o1 33 40 Ir I@
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42 43 l L I 2 t o io 4710 44 13 CAU'*.c DCf.CIUP DON ANO f.OMitLCTIVE ACTIONS lijollThe bolts which hold the motor together broke, allowing the rotor to rest on the Motor bolts and bes. rings were ;
[g l stator which prevented the motor from running.
,jireplaced and motor returned to service. This is considered a r.andom failure and ;
i, ;
li) j l no recurrence control is required.
I l'14 i ! _
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NAME OF PREPARER
Ten.ie:see Valley Authority Fonn BF-17 Browns Ferry Nuclear Plant BF 15.2 3/24/81 LER SUPPLEMENTAL INFORMATION DFRO 296 / 81022 Technical Specification Involved 3.5.B.6 and 3.5.B.7 Reported Under Technical Specification 6.7.2.b(2)
Date of Occurrence 5/11/81 Time of Occurrence 1900 Unit 3 Identification and Description of Occurre nee:
Valve FCV-74-57 motor starter thermal tripped upon opening and closing.
Conditions Prior to Occurrence:
Unit i refueling outage.
Unit 2 at 98%
Unit 3 at 98%
.setion specified in the Technical Specification Surveillance Requirements met due to_ inoperable equipment. Describe.
Required surveillance rcquirements were met.
Apparent Cause of Occurrence:
The bolts which hold the motor together broke.
Analysis of Occurrence:
There was La danger to the health or safety of the public, no release of activity, I
no damage to the plant or equipirent, and no resulting significant chain of events.
l l
i Corrective Actica:
Bolts and n.otor bearings replaced, motor tested and returned to service.
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Failure _ Data :
None
!
- Reten tion : Period - Lifetime; Responsibility - Document Control Supervisor
$ Revision: t. /,
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