05000348/LER-1981-043-03, /03L-0:on 810602,sequencer Associated W/Diesel Generator Failed to Meet Time Requirement for Picking Up Step 2.Caused by Setpoint Drift.Agastat Timer Adjusted & Sequencer Returned to Svc

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/03L-0:on 810602,sequencer Associated W/Diesel Generator Failed to Meet Time Requirement for Picking Up Step 2.Caused by Setpoint Drift.Agastat Timer Adjusted & Sequencer Returned to Svc
ML20009F919
Person / Time
Site: Farley Southern Nuclear icon.png
Issue date: 07/01/1981
From: Hairston W
ALABAMA POWER CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20009F907 List:
References
LER-81-043-03L, LER-81-43-3L, NUDOCS 8108030165
Download: ML20009F919 (1)
v • d • e


LER-1981-043, /03L-0:on 810602,sequencer Associated W/Diesel Generator Failed to Meet Time Requirement for Picking Up Step 2.Caused by Setpoint Drift.Agastat Timer Adjusted & Sequencer Returned to Svc
Event date:
Report date:
3481981043R03 - NRC Website
v • d • e

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SOURCE 60 6

COCK ET NUMBER 68 69 EV ENT CATI 74

,5 REPORT CATE 80 EVENT OF. SCRIPT 1CN AND PRCSABLE CCNSECUENCES h o i 2 I l At 1406 on 6/2/81, while performing FNP-1-STP-28.1 (Diesel Generator 1C (2C) Operability l 0 ;3; l Test), a sequencer (B1H) associated with diesel generator 1C failed to meet the time re-i o,4 l lquirement for picking up step 2.

(Note: At this time D.G.

1B had been taken out of.

g

o ;3; l service in order to perform maintenance). Tech. Spec. 3.8.1.1, in part, requires the y

! o is } l BlH sequencer to be operable.

Tech. Spec. 3.8.1.1 action statement requirements were l

! _o i 7 l l me t.

similar occurrence was reported in Unit 1 LER.80-052/03L-0. This LER is j

io,3l l applicable to both Units 1 and 2 of FNP.

l E

$ 9 80 SYSTEM

CAUSE

CAUSE COMP.

VALVE CCCE CCCE SU8CCCE CCMPCNENT CCC E SU8CCCE SU8CCCE fo I 91 lE lE l h W h lZ lh lR lE lL l Al Y l X lh lM lh l Z lh i

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10 11 12 13 18 13 20 SEQUENTi AL OCCURRENCE REPCRT REVISION LER/Ro EVENT Y E A R REPCRT No.

CCCE TYPE No, h aE l8l1l l_l l0l4[3l l/l 10l3l lLl l-l l 0l T

y 21 22 23 24 26 27 23 23 30 31 32 CTICN CNP r

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SUP ( ER MANUFA RER

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i zie,ioioioi i i "ie i" is i^ ie i ^ i 1 i o i9 ie CAUSE CESCRIPTICN ANC CCARECTIVE ACTIONS h

!iiol lThis incident is attributable to setpoint drift. The agastat timer was adjusted and the l ti;i; jBlH sequencer was returned to service at 1845 on 6/2/81.

1 i ! 21 l

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It 131 I l

l i + 41 I i

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% PC*aE R QTH ER STATUS i

RY CISCCVERY CESCRIPTION 11 i 5 ! l E lh l 1l 0 l 0 lhl NA l

l B l@l Performance of STP l

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meteasEC -FaELEAsE is l l Z l h JQl l

NA l

NA l1 PERSCN.YEt ExPosd5ES CEsCRimCu h NuuSeR TvPE ji l 7 l l 0 l 0 l 0 l@l Z l@l NA l

1.

PERSCuN E t iN;u'd ES 7

8 '

NUMSER CESCaiPTION g i j a j l 010 l 0 [@l NA l

7 8 9 11 12 80 l/

t LCSS Ce CR CAuACE TC SAC:uTv y TYPE CESCRIPTICN b9 lZl@(__

NA l

1 8 9 10 30 CESCRimCN @

8108030165Ohhg NRC WE N ISSU E i 2 i o l l N hl

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NA -

PDR ADOCK 05 POR jlIIIIIIIIIIll2 g

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8 9 to 68 69 80 &

NAME OF PREPA'RER

'PHCN E:(20 D 899-5156 2,

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