ML19282C176

LER 79-012/03L-0 on 790214:review of Solid State Protective Sys Train A/B Operability Test Indicated That Portion of Program Did Not Verify Spray Test Actuation Logic.Caused by Sys Train Design Change.Procedure Modified

ML19282C176
Person / Time
Site:	Farley
Issue date:	03/16/1979
From:	Hairston W ALABAMA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19282C172	List: ML19282C171 ML19282C176
References
LER-79-012-03L, LER-79-12-3L, NUDOCS 7903210139
Download: ML19282C176 (3)

Text

F OllM s.G U. S. NUCLEAR REGULATORY COM%11SSION l s

) ,

1 -

LICENSEE EVENT REPORT CONIROL DLOCK: [)) i l l l lh c

(PLE ASE PRINT OR TYPE ALL REQUIRED INFOW.1 ATION) b [^ j L l J,jM F l 1 l@l 0 l0 l -l0 LICL l0 t.SL l0NuvaL l0 Hl0 0 0 @l26 4 l LICEr.5L 2.>

1 l 1 TlYPE 1l JoI lOL I !G t.1 CAI bd

'l 14CC We t CODE 14 15 it Ej N l L l@l 0lti l5 l 0 l DOCKE 010T NUMBE l 3 lH 4 l 8 l@M (M 2 l EVENT1 l 4DATEl 7 l 9 ]@l 0 l 3

/4 ~15 l 1 DATE HEPORT l 6 l 7 80] 9 l@

o f, J G1 EVEN T DESCRIPTION AND PROBADLE CONSEQUENCES h El L0n _2._i4-79. a review or FxP-1-sTP-33.0 (soi ta state Prot. system Train A/n Op. Test) i TXJ l indicated tnat a portion of the STP (performed between 9/78 and 2/79) did not verify l fj] [ cont. spray test actuation logic as required by Tech. Spec. 4.3.2.1.1. A retest on l 9 l 2-14-79 verified that the cont. spray actuation logic was operable f rom the period of l fB i 9/78 to 2/79. Health / safety of the general public were not affected.

1] L I I

ED L 60 h 9 SYSTEM CAUSE CAUSE COYP. VALVE CODE Cc0E OU3 CODE COWOP.ENT CODE SUE:CCDE SU3 CODE 3 b 9 ls I al@ LDJ@ l z l@ Iz Iz Iz Iz Iz Iz l@ 08 L zJ @

10 11 12 13 les l'J 20 SEQUE N TI AL OCCUH R E N CE REPO tT f4EVtSION

._ EVENT YEAR REPOHTFwO. CODE TYPE No.

O ,"ty2s r a q 317 19 I

__ 21 22 l-l 23 LO li 12 26I 24 l-1 2/

10131 2J 23 ItI 3) l-j 31 LOJ 32 ACl # ON FUTURE CHECT Sa uT DO /.N ATT ACHYE N T NPRD 4 FRIME COMP. COWONENT TAKEN ACT'T4 04 PL ANT V E T r%D HOURS 4 SUBVsTTLD FORM bu9. SUPPLIE H MANUFACTURER isl@Lr J@

33 3 -1 _

Lxj@

35 tzJO 36 10 010 l o 1 31 43 IV l@

41 LE18 42 Iz 43 l@ z 19 19 1947l @

44 CAUSE DEF.CRIPTION AND COrutECTIVE ACTIONS gj }A SSPS design change implemented in 9/78 inadvertent 1v disab' led the cont . nnrav innorI

{q l relay test circuitry. This was not detected until 2-14-79 due to confusine wordina I g of the cont, spray test acceptance criteria in FNP-1-STP-33.0. Upon detection a l g g chant;e was issued to the STP to verify operability of the cont. spray input relays andl B Lto clarify accentance criterta.

e o eo SIA  % PUtiE st O THEFI S T A TUS t Y DISCOVEHY DESCRIPTION E @ l0 l 918_ hl NA 1. b))]hl Surv. Too Prnenchirn n ov i m , 1 A TlVITY CO TENT P LC ASE D OF HE L E ACF AMOUNT OF ACTIVITY LOC ATION OF RELE A';E E Lzj @ trJ@l s 9 IJ 11 x^

44 l

45 m

E3 I

l'L RSUW L f XPOSURES Nutta EH TYPE to D 'I Il O N -

li *1010101@lzl@l x^

l n ,:5UN.J'~UL s m ,. et n otSCHiPriO.@

bJF l3o l 01 OJ@l12 x^ -

11 00 l

t O',5 o, O,i DAY AGE To F ACILIT Y T Y Pl' D E F.C DIP i t uf)

E LzJ81 f ' . Ifn NA I 11 0 Otm i til l V ggg gc,[ gyty jg '@g["'g'"

,, 9 .m 7903210133 i os mi i i ii i i i iiiiiij so ;;

N WE OF PHtfAhE H N 0- IIsli rst on. TTI PHONE. (205) 899-5156

. JI .

ALABAMA POWER COMPANY JOSEPli M. FARLEY NUCLEAR PLANT DOCKET NO. 50-343 ATTACilMENT TO LER 79-012/03L-0 Facility: Joseph M. Farley Unit 1

'tepo r t Da t e : 3/16/79 Event Date: 2/14/79 Identification of Event on 2-14-79, a review of FNP-1-SIP-33.0 (Solid State Prot. System Train A/B Op. Test) indicated that a portion of the STP (performed between 9/78 and 2/?9) did not verify cont. spray test actuation logic as required by Tech. Spec. 4.3.2.1.1.

Conditions Prior to Event The unit was in mode 1 at 98% power.

Description of Event on 2-14-79, a review of FNP-1-STP-33.0 (Solid State ProL. System Train A/B Op. Test) indicated that a portion of the STP (performed between 9/78 and 2/79) did not verify cont. spray test actuation logic as required by Tech. Spec. 4.3.2.1.1. A retest on 2-14-79 verified that the cont. spray test actuation logic was operable.

Analy.cis of Event A review on 2-14-79 by the Operations Superintendent revealed that the acceptance criteria for containment spray SSPS input relay testing had not been met for 4 months due to the " sign-off"/ acceptance criteria requirements in step 5.8.2 of FNP-1-STP-33.0 being unclear.

Temporary jumpers were used to activate the containment spray test circuitry and verify operability of the contcinment spray instrument channels on both train A and B of SSPS. SSPS wiring was checked and it was verified that the operability of protective circuits was not affected.

Due to design error, the SSPS containment spray test feature had inadvertently been made. inoperable when a design change on the SSPS was implemented.during the September Turbine Outage.

In that the protective functions of the instrument channels were not eliminated by the design change, the health and safety of the public were not affected.