ML19308D388

LER 77-158/03L-0:on 771227,3B Emergency Diesel Generator Failed to Start During Monthly Surveillance Test SP-354. Caused by Foriegn Matter Preventing Governor to Function Properly.Servo Booster Cleaned & Tested

ML19308D388
Person / Time
Site:	Crystal River
Issue date:	01/17/1978
From:	Stewart W FLORIDA POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19308D383	List: ML19308D382 ML19308D388
References
LER-77-158-03L, LER-77-158-3L, NUDOCS 8002270838
Download: ML19308D388 (2)

Text

l I

. +

.m -

+ .

~

Nac 7 oRM 3G4 (. U.s. NUCLCAR RtCULAToRY CoMMiS loN 87 773 LICENSEE EVENT REPORT EXHIBIT A CoNinokstoCm I, tri. tass eneNr on Type ALL atouinao s.asonMaricN I

l- 1 I I .l@

g T,o.,Til lF l LI q Rl Pi .. 3 n lgl 0 l 0l uc ;O m .! Og0; 0l0 ga go;Oggl4; 1[i i ;1;g[ g;g

...  :. sic w. .... u - s.,

u,.aun coi con'T l t

t, o.L.J. "'*O L.L,_J@l 0ooc.., ..

t 5! w0u.i -!0 l 3;012 . gg 1,2 2; 7 ; 7;

.n..... ,. u 7g[ ...o0; 1,1; 7,7 ; 8 ;g

.o... .,

EV(Nr otsCAlPTIoN ANo PMc8ASLL CONSEQUENCE 5 to g In mode 1 operation, while part g the Monthly Diesel Test 'Surve111anca , ,

o t

g , Procedure SP-354, the "3B" emergency diesel generator failed to start ,

m , contrary to Tech Spec 3.8.1.1.1. No safety implications as redundant "3A" ,

Cable Tunnel Surveillance, m , diesel generator available and operable. ,

SP-322 and Breaker Verification SP-321, performed and "3B" emergency diesel This is the g , generator restored operable at 1839 on 27 December 1977. ,

, third occurrence of this event. ,

'SEE ss's"*cs #

e Ne-Es c$Tishi N lg g ]esg I El E lg h.. sg lBl@ lMI 1 g ITTT1 ocw . ,.,.C

u. ,.: ,,

, ua,u ~,.. u c==. um..o,

.u~r na. u .. a. .. .

O ,a,g,.;; I 71 71 l-- J l ilsI si 1/l n L,Q L3) a LL) u L. -d LQJ u

_a u u  :.  :. . 2 as ac 0 0 a f aTk woJa$On ""u.WW . i'?d "i">' ?.'ii~ T~rs' -

LB.J@l,.ZJ@

u .

IZ!@

.

. .W@ . ,1,0 ' 0 8 0 ! O.I L..Y.J @lN!@ .,

lNl@ lWl2!910l@

CAuss essCaiericN 4=c CanaECnvr scricss

,,,, i Maintenance determined that oreign matter (small pieces of ins lation ,

, material) had prevented the governor from working. properly. The governor ,

., servo booster was disassemb.'.ed, cleaned, reassembled, and tested satisfactoy-

,,,,,,g ily. The governor for the "3A" diesel was inspected and the governor oil g

,,- , ,for both diesels was changed. ,

r . r .o 3a  % 8%"Mtu CT=t.tTATV3 i;a  ; 3;;*. g v ;33;.e.,--)4 g g@ l 1 } 01 01@l u o NA l (B,J@l

=

Operator observation m

I r s ,g,,,,n ,gg .,,,

• • 4 utsus :e ntr ue socar.n o. .v.aasa @

i e y [Jj@l avr.'st:e NA acTiure @I I MA I

o,s/6 ..osOis -

,,v.,n . on zu -n o,@

l t i 10 1010!@l ,_J@l NA I

33.u't ,,,Jiusiu .- es@

,t vu NA l i T11010 t Ol@l.: ,, -

W.5,:'

R [Z.,,J@q j ,t;'i,';.? *"'" @ NA I 83 f . . 0

5C'

l l p q , g, ,7t @' %',':...,,as @

~ NA ,  ! ! i ii ###I l <- ., w agAyg ce p.gpaggp Y P C

• A"-e w e .1 p CNE

-(SEE ATTACHED SUPPLEMENTARY INFO MATICN SHEET)

W[

\ .

-g.9 9 g gqq }l 4 a

-- - - - - - , - - - - - - ~ ~ - - , , , - , . . . - . . , - - . - - , , - , - - , _ , -y- g .,,-_n--, y--

n-

, SUPPLEMENTARY INFORMATION Report No.: 50-302/77-158/03L-0 -

2. Facility: Crystal River Unit #3 .

3. Report Date: 17 January 1978

4. Occurrence Date: 27 December 1977

5. Identification of Occurrence:

The "3B" emergency diesel gene::ator failed to start contrary to Technical Specification 3.8.1.1.b.

6. Conditions Prior to Occurrence:

Mode 1 power operation.

7. Description of Occurrence:

At 0705, while redng the Monthly Emergency Diesel Generator Surveillance I Procedura, SP-354B, "3B" emergency diesel generator failed to start for the 3 mechanalysis run. The Crystal River Units 1 & 2 Shift Supervisor was notified of entry into the 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> Action Statement of Technical Specification 3.8.1.1 and to perform the Cable Tunnel Surveillance SP-322. The Breaker Verification Surveillance SP-321 was initiated and the operability of "3A" emergency diesel l generator was verified. Maintenance Work Request 0-5874 was initiated and the "each 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />" surveillance requirement was met until the "3B" emergency diesel was resnored operable at 1839 on 27 December 1977.

8. Designation of Apparent Cause: ,

i Maintenance revealed that foreign matter in the governor was the cause of this event. '

9. Analysis of Occurrence:

There were no safety implications to the plant or general public, as the "3A" emergency diesel generator was available and demonstrated operable.

10. Corrective Action:

No corrective action taken as cleaning of .the governor restored "3B" diesel generator operable. "3A" diesel governor was inspected and the oil for both diesels was changed. *

11. Failure Data:

This is the third occurrence of this event as reported by LER's 77-94 and 77-128.

)

J