05000364/LER-1981-008-03, /03L-0:on 810422,diesel Generator 2C Sequencer B2J Failed to Meet Time Requirements for Picking Up Step 2. Caused by Agastat Timer Setpoint Drift.Setpoint Adjusted

From kanterella
(Redirected from ML20004F643)
Jump to navigation Jump to search
/03L-0:on 810422,diesel Generator 2C Sequencer B2J Failed to Meet Time Requirements for Picking Up Step 2. Caused by Agastat Timer Setpoint Drift.Setpoint Adjusted
ML20004F643
Person / Time
Site: Farley Southern Nuclear icon.png
Issue date: 06/12/1981
From: Hairston W
ALABAMA POWER CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20004F638 List:
References
LER-81-008-03L, LER-81-8-3L, NUDOCS 8106190324
Download: ML20004F643 (1)
v • d • e


LER-1981-008, /03L-0:on 810422,diesel Generator 2C Sequencer B2J Failed to Meet Time Requirements for Picking Up Step 2. Caused by Agastat Timer Setpoint Drift.Setpoint Adjusted
Event date:
Report date:
3641981008R03 - NRC Website
v • d • e

text

.

LICENSEE E'.'.ciNT RE.: ORT

~ CONTROL BLOCK: l l

l l

l l lh (PLEASE PRINT OR TYPE ALL REQUIR!D INFORMATIOM 3

6 l0 I i l l A l L l J lM l F l 2 l@l 0 l 0 l -l 0 l 0 l 0 l 0 l 0 l-l0 l0 l@l4 l 1 l 1 l 1 l 1 l@l f sa@

l i

i 9 u:v.sEecose i.

is ucEussNuua R 2s 25 ucisSETv,E 20 3 CA:

' 'l l L @l Ol 5l 010 l 013 l 6 l 4 @l 014 I ?l218 l 1 @l 0 l 6 Il l 218 11 l@

$3vR E 4

63 68 COCK ET *.J..:a E R Ea 63 E VENT 0ATg 75 RgpCAT O AT E E0 EVENT OESCRIPTIOfJ AND PROSABLE CONSEQUENCES h lo ' fl i At 1250 on 4 /22/81. while nerforminz FNP-1-IIP-28.1 (Diesel Generator'1C(2C) Ooerabilitvl 10 l l Test), diesel generator 2C.was declared incoerable when the Unit 2 B2J sequencer failed I l o # 2 I l to meet the time requirements for picking up step 2.

Tech. Spec. 3.8.1.1 recuires -

[

.l o i s 1 [ two separate independent diesel generator sets and sequencers to be operable.

Tech.

I laesI l Spec. 3.8.1.1 action statement requirements were ret.

Health / safety of the oublic was

[

l 317 l l not af fected.

l laeail f

7 5 9 80 SYSTEM CASSE

CAUSE

Cov7 VALys CODE COCE SU3 CODE COMPONENT CODE 5U3:005 5U20CCE loea1 1 E l E lh lE lh l X ih lR lE l Ll Al Y l X lh lM lh lZ lh 7

4 9

10 11 12 13 18 13 20 SECUENTIAL OCCURRENCE REPCRT EEV' SON LER RO EVENT YEAR R EPO'4T NO.

CCOS TYPE No.

h,aEfjg l218l1l l-l l0 l0 l8 l l/l l0l3l l Ll l-l l O!

22 23 24 26 27 28 29 30 31 22 (CilCN FUTURE EFFECT SHUTOOWN ATTACHvENT NPR O-t PRIME COMP.

COVPN ENT TAf.(N ACTION oN PLANT V ETr= O 3 HCURS SUS?.!!TTED FCRM aO3.

S'.'P *'_I ER

'8ANL:A7. JRER a-

[I ]@lZ l@

lZ l@

l2l@

l 0 l0 l 01 0 l l Nl@

lNl@

l A l@

l Al 110 l 9 [(

33 J4 35 05 3/

40 el 42 43 24 47 cAUSE DESCR!PTION AND CCRCEOTIVE ACTIONS h J.tal IThe sequer.cer van si: in ticking up step 2 as a result of agastat timer setcoint drift.I Iiiil lThe agastat tirer set:: int was adjusted, the surveillance test successfully perfo red I

t,,7; land diesel generator 2C ias returned to service at 1345 on 4/22/Sl. This event occurredg i,.,, lduring Unit 2 start:Ip testing, and falls within the scope of a soecial corrective action l task force.

Preliminary results of the task force evlauntion have been sub::titted to NRC ii4 I I M. c., m m c., r,,

3-

, e I

a 3 60 7 ACitt TV METHOO C.t STATUS

% PCWE9 CD4ER $7ATUS ctSOCVERY C;SOOVERY DESCRIPTICN i 15 l l C l@ l0 l 0 l 0 l@l NA l

lB l@l Performan_e of surveillance st l

A!nviTY Co' RENT

'2 n

u 43 44 80 i t s l l Z I @ IZ l@l

..:w,T e, AcTivirY @ l ATisN c, Re.E235 @

c.E u AsEo c. RE u AsE tC:

NA l

NA l

r 2 9 to 13 44 45 J;l PER5CNNat. EXP03g7 E3 NUY8ER TYPE OE3CR;27 TON D t i 7 l l 0 l 0 l 0 !@l Z l@)

NA l

3 9 it 12 13 43 PERSONN EL aNJu-21 E $

If1V9ER

!; l l 0 l 0 l O]QlDESCR19TfCN NA J

8 9 11 12 60 LO33 05 CR CA'.tAGE To 74CiuTY A TYPE C ESCatP n ON ilIZ;@l NA l

9 9 to 50 SUstectTY iss;E0@loEsCRi Tio~ C,e 8106I'90.328 l 'l l l 1 I i 11 I I I J l; NRC USE CNLY a

NA 2iu 1 3 3 to 63 63 80

//7 A G Q B)h% 1 %S

Retrieved from "https://kanterella.com/w/index.php?title=05000364/LER-1981-008-03,_/03L-0:on_810422,diesel_Generator_2C_Sequencer_B2J_Failed_to_Meet_Time_Requirements_for_Picking_Up_Step_2._Caused_by_Agastat_Timer_Setpoint_Drift.Setpoint_Adjusted&oldid=4670746"