ML19317G327
| ML19317G327 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 05/09/1977 |
| From: | Stewart W FLORIDA POWER CORP. |
| To: | |
| Shared Package | |
| ML19317G322 | List: |
| References | |
| NUDOCS 8002280934 | |
| Download: ML19317G327 (2) | |
Text
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Lcf NJf C totNSC (VfNT r f" s NAMc tctNSC NUMU(n IvPC TYPE
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DOCKET rJUMDER EVENT DAri ACPOnT DATE D I CON'T l - l - l l Ll M l0lSl0l-l0l3l0l2l l0l4l1l6l7 l7 l l 0l 5 l 0 l9 l7 l7 7 0 b7 LU 59 GO 01 60 09 74 7b t
EVENT DESCRIPTION o
l In Mode 3 operation, during shutdown from outside the Control Room test, a start of the 7 UD t
@l Turbine driven EWP D'as attempted using Main Steam.
The EWP tripped due to overspeed 7 00 l'
@ ( and was declared inoperable per Technical Specification 3.7.1.2.b.
Redundancy was main-7 UD t
hl entned with the motor driven EWP.
Second event of this type.
Pump was restored 7 ou t;
@l operable using Aux. Steam.
.(LER-77-37) 7 09 tmt b
Sv5ffM CAUSE COM6ordf NT COMICrJCNT CODE CODC COMPOldfNT CODE SL*4V H MArau5ACTurun votAtors
@ l11 l11 l W l Ml El Cl Fl Ul Nl l Al l W i2 l9 l0 l W
7 UU 10 11 12 17 43 44 47 48 CAUSE DESCn!PTION 00 l Newly installed governor. lid not respond fast enough to operate the EWP with Main Steam 7 a9
@l 6
as power source. The EWP wcs lined up on Aux. St4am and declared operable.
7 09 E..
O.
FACILn y METHOO OF STAIUG
% POWCR OTHin STATUS DISCOVERY DISCOVCRY OCSCRiPTION lGl l 0l 0l 0l l
N/A l
lC l l
N/A 1
7'O 9
10 12 13 44 46 46 0;
IOHM OF ACTMif COPIIENT fi[L( ASE D OF 5:ELEASE AMOUNT OF ACTMTV LOCATION OF RCLEASE E
lZl Wl N/A l
l N/A 7 0 9
10 11 44 45 Gi PERSONNEL EXPOSURES NUMBEA TYPE Of SCAtPf!Ord l0 l0 l 0 l @
l N/A 1
7 09 11 12 13
, UL PERSONNEL INJURIES NUMDt A DESCRsPflON h l0 l0l0l l
N/A l
7 DD 11 12 Ob OFFSITE CONSEQUENCES Ql N/A l
7 00 O'
LOSS OR DAMAGE TO TACILITY T Yl'E Of SCnJPTON NEl Wl N/A l
7 00 10 id:
PUDLICITY N/A l
7 00
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3DiilONAL FACTOns Ih. ;
See attachod Supplenent ary In forma t inn l
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[, gl SUPPLEMENTARY INFORMATION s_/
1.
Report No:
50-302/77-37 2.
Facility:
Crystal River Unit #3 3.
Report Date:
9 May 1977 4.
Occurrence Date:
16 April 1977 5.
Identificatinn of Occurrence:
Failure to have two Energency Feedwater Pumps available and operable from two independent power sources contrary to Technical Sr.cification 3.7.1.2.b.
6.
Conditions Prior to Occurrence:
In Mode 3 condition conducting the shutdown from outside the Control Room test.
f.
7.
Description of Occurrenca:
At 0830, a start of the Turbine driven Emergency Feedwater Pump was attempted using Main Steam as the power source. The pump tripped on overspeed and was declared inoperable. The pump was lined up on Aux-
)
iliary Steam restoring operability.
8.
Designation of Apparent Cause of Occurrence:
The newly installed governor did not respond fast enough using Main Steam as a power source.
9.
Analysis of Occurrence:
There were no adverse safety consequences resulting from this occurrence as the OT Steam Generator levels were high.
Redundancy was maintained by the motor driven EFWP which was determined to be available and operable, and the Steam D tven Emergency Feed Pump was operable manually on Main Steam 'and remotely on Auxiliary Steam.
10.
Corrective Action:
Leave the Turbine driven EFWP lined up on Auxiliary Steam and an engineer-ing evaluation be made of the. governor.
11.
Failure Data:
j This is the secon,d occurrence of this type (refer to LER 77-24).-
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