05000366/LER-1980-046-03, /03L-0:on 800404,during 18-month Surveillance Procedure HNP2-3832,loss of Sys Pressure Was Simulated on Diesel Generator 2C & Bus 2G.Generator Started But Did Not Tie to Bus.Caused by Personnel Error

/03L-0:on 800404,during 18-month Surveillance Procedure HNP2-3832,loss of Sys Pressure Was Simulated on Diesel Generator 2C & Bus 2G.Generator Started But Did Not Tie to Bus.Caused by Personnel Error

ML19309H193
Person / Time
Site:	Hatch
Issue date:	04/28/1980
From:	Coggin C GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19309H192	List: 05000366/LER-1980-046, Forwards LER 80-046/03L-0 05000366/LER-1980-046-03, /03L-0:on 800404,during 18-month Surveillance Procedure HNP2-3832,loss of Sys Pressure Was Simulated on Diesel Generator 2C & Bus 2G.Generator Started But Did Not Tie to Bus.Caused by Personnel Error
References
LER-80-046-03L-01, LER-80-46-3L-1, NUDOCS 8005090328
Download: ML19309H193 (2)

LER-1980-046, /03L-0:on 800404,during 18-month Surveillance Procedure HNP2-3832,loss of Sys Pressure Was Simulated on Diesel Generator 2C & Bus 2G.Generator Started But Did Not Tie to Bus.Caused by Personnel Error

Event date:
Report date:
3661980046R03 - NRC Website

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8 to 61 COCKET NUMBER fA 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h 10121 l Durina cold shutdown and while performina 18-month surveillance proced-1 10 :31 l ure HNP-2-3832 an LOSP was simulated on diesel generator 2C and bus 2G.

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IThe diesel generator started but did not tie to the bus as it should O 4 10 is t I through breaker 135540.

Due to personnel error the sync speed setting I

When the speed was readjusted the diesel generator tied to I

10181Iwas wrong.

non-repetftive occurrence.

There were I l0171 I the bus as it should.

nie te 3 iOisiino effects upon public~ health or safety.

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33 34 34 36 37 40 el 42 43 44 47 CAuSE DESCRIP7 ion AND CORRECTIVE ACTIONS h lil0llThe error was due to personnel not being aware of the change i n th e I

li lil l annunciator response procedure HNP-2-2299.

The change has been dis-I I

g l cussed and all of the operators are now aware of the proper response.

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Edvin I. H3tch Docket d:

50-?66

?!arrative Recort for L"P. 5 0-36 6 /1 n8 0-04 6 Dyaing c ol. d shutiovt tnd while perforning 1%,onth sit-v e i 1 -

lance p=ocedure H:IS

-) '3 3 3 ? an LOSP was s i'a u l a t e d on diesel gene"ator*2': and bus PG within 5,ti-itttes arte= s ?4-hou" f u '.1 load run on the diesel.

generato.

The diesel gene ato-started but did not tie to the bus to ca-ry the load.

Duains the intc" val between the ? !'-h ou a run' and the LO9? while the diese'. generator was shu t d o'in the sync speed alaam annunciat-ed, and personne'. adjusted the setting to clea" t'1 e alaan.

This was an ee"o".

The setting should 't it hs.v e been ch a-t M e d at thst tine.

This is ss pe-annuiciato= response paocedure HNP-?-2200 which had been accent 1.y revised.

Afte" the syne speed sett'.ng was changed it wts too lov to a l. '. o';r the diese1 a tea r

generatoa to come uo to the necesssrv speed.

Theae"oas, the diesel gene =ato= started the auto closing mechanism w o u '.d not' let the diesel generatoe output b r e a'< e a close.

After the LO.9P 9 t s initiated and the output breaker did not close it "ts noticed that the D/G speed was too '. o 9 P e r s o n n a. 1 "eadjusted the sync speed setting, and the output 5"eake" c1.osed tieing the diesel. geteaato" to the hus as it s h oul. d.

Afte" the eero-was c o"e c t e d the s u "v e i.11an c e procedure was "e'.nitiated and cully.

The plant is nov in complete cospleted success compitance.

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