ML19318C414: Difference between revisions

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N N: FO;1 M ;o ,                                                                                                                        U.S. NUCLEAR REGULATORY COMMISSION                  ;
N N: FO;1 M ;o ,                                                                                                                        U.S. NUCLEAR REGULATORY COMMISSION                  ;
   '7 O (7-77)                  -
   '7 O (7-77)                  -
LICENSEE EVENT REPORT
LICENSEE EVENT REPORT CONTROL BLOCK: l I
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o lh.                  (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) l io !'I3 h9 l L_ LICLNJEE 7
o lh.                  (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) l io !'I3 h9 l L_ LICLNJEE 7
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                             $f[$ l L l@l 0 l 5 l DOCKET t>0            61 0 l 0 NUMBERl 0 l 3 l 4 68      l 8@l  60 0 lEVENT 5 l DATE 2 l8 l 8 l0 @l  J4      75 8l0    l0 l6 l2 l580l@
                             $f[$ l L l@l 0 l 5 l DOCKET t>0            61 0 l 0 NUMBERl 0 l 3 l 4 68      l 8@l  60 0 lEVENT 5 l DATE 2 l8 l 8 l0 @l  J4      75 8l0    l0 l6 l2 l580l@
REPORT D ATE EVENT DESCEPTION AND PROB ABLE CONSEQUENCES h lo t a; i At 2200 on 5-28-80, during the performance of FNP-1-STP-11.6 (Residual Heat Removal l lo la 4 i            Valves Inservice Test), the 1A RHR Heat Exchanger discharge valve (FCV603A) failed tog g o i4 j l          stroke close. It remained in the required open position. As a result of being                                                                                    l go,,g)              unable to stroke the valve, it was declared inoperable. Tech. Spec. 3.5.2, in part,;
REPORT D ATE EVENT DESCEPTION AND PROB ABLE CONSEQUENCES h lo t a; i At 2200 on 5-28-80, during the performance of FNP-1-STP-11.6 (Residual Heat Removal l lo la 4 i            Valves Inservice Test), the 1A RHR Heat Exchanger discharge valve (FCV603A) failed tog g o i4 j l          stroke close. It remained in the required open position. As a result of being                                                                                    l go,,g)              unable to stroke the valve, it was declared inoperable. Tech. Spec. 3.5.2, in part,;
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_  l288 22l 0l l-l 23 l0 l3 l6 l 24              26 lfl 27 l 0l 3l 23        2J lLl 3J
_  l288 22l 0l l-l 23 l0 l3 l6 l 24              26 lfl 27 l 0l 3l 23        2J lLl 3J
[.__j 33 lol 32
[.__j 33 lol 32 KE    AC OP                O PL NT                MEr                        HOURS              S B i E        FoR        B. SUPPLIE            MANUFAC RER I B IhWh Wh JJ        34                    35 ISh 3d              'lll 0l 0l 0l 0l        40 yg 41 l Njg l Alg lR l3 l4 l 4[g 42                43            44            47 CAUSE DESC.41PTION AND CORRECTIVE ACTIONS li j o j i This event was caused by a cap screw connecting the valve actuator' to the valve shaf tl gl                  coming out.                'Ihe cap screw was replaced, the test successfully reperformed, and the j
    -
KE    AC OP                O PL NT                MEr                        HOURS              S B i E        FoR        B. SUPPLIE            MANUFAC RER I B IhWh Wh JJ        34                    35 ISh 3d              'lll 0l 0l 0l 0l        40 yg 41 l Njg l Alg lR l3 l4 l 4[g 42                43            44            47 CAUSE DESC.41PTION AND CORRECTIVE ACTIONS li j o j i This event was caused by a cap screw connecting the valve actuator' to the valve shaf tl gl                  coming out.                'Ihe cap screw was replaced, the test successfully reperformed, and the j
         ,,,,,;              valve was declared operable at 0950 on 5-29-80.                                                      The last STP was successfully                                ;
         ,,,,,;              valve was declared operable at 0950 on 5-29-80.                                                      The last STP was successfully                                ;
           ,,,i l            performed on 2-28-80.                              No cause could be determined for the cap screw coming out.                                                    g g;                  No maintenance had been performed that involved the cap screw since the plant was                                                                                ;
           ,,,i l            performed on 2-28-80.                              No cause could be determined for the cap screw coming out.                                                    g g;                  No maintenance had been performed that involved the cap screw since the plant was                                                                                ;
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       '      ' '                    ''                      ''                                                                                                                          8a
       '      ' '                    ''                      ''                                                                                                                          8a
                           .ERSONNE L IN3UL NuvsER                oESCRiaTiONh li p i 101 010 i3)I                                                                    NA                                                                                            l 7      8 9                    11        12                                                                                                                                        go 1.05S CF OR DA*JAGE TO FACILITY Q TYPE      DESCRIP TION                      v I i I:,I l Z l@l                                                                      NA l
                           .ERSONNE L IN3UL NuvsER                oESCRiaTiONh li p i 101 010 i3)I                                                                    NA                                                                                            l 7      8 9                    11        12                                                                                                                                        go 1.05S CF OR DA*JAGE TO FACILITY Q TYPE      DESCRIP TION                      v I i I:,I l Z l@l                                                                      NA l
7      4    's        10                                                                                                                                                        SQ
7      4    's        10                                                                                                                                                        SQ 2 n      ::sy t f@OESCRtPTION
* 2 n      ::sy t f@OESCRtPTION
_IN          l                                                                                                                            I      1111 t i l i l l i t t i 8 001010 VW#                                                        w. c. Hairston,111 t---                            m sarare m                                                      -_                                          e [205) 899-5156                                    =
_IN          l                                                                                                                            I      1111 t i l i l l i t t i
                                                                                                                                                              * ' "
8 001010 VW#                                                        w. c. Hairston,111 t---                            m sarare m                                                      -_                                          e [205) 899-5156                                    =


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6..
6..
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CAUSE DESCRIPTION AND CORRECTIVE ACTIONS - LER 80-036/03L-0 initially placed into operation. The cap screws in similar valves were checked and found to be satisfactory. This incident in considered to be an tsolated occurrence.
CAUSE DESCRIPTION AND CORRECTIVE ACTIONS - LER 80-036/03L-0 initially placed into operation. The cap screws in similar valves were checked and found to be satisfactory. This incident in considered to be an tsolated occurrence.
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Latest revision as of 07:06, 1 February 2020

LER 80-036/03L-0:on 800528,during Performance of RHR Valves Inservice test,1A RHR Heat Exchanger Discharge Valve Failed to Stroke Close.Caused by Cap Screw Connecting Valve Actuator to Valve Shaft Coming Out.Cap Screw Replaced
ML19318C414
Person / Time
Site: Farley Southern Nuclear icon.png
Issue date: 06/25/1980
From: Hairston W
ALABAMA POWER CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19318C411 List:
References
LER-80-036-03L, LER-80-36-3L, NUDOCS 8007010446
Download: ML19318C414 (2)
v • d • e


Text

. .

N N: FO;1 M ;o , U.S. NUCLEAR REGULATORY COMMISSION  ;

'7 O (7-77) -

LICENSEE EVENT REPORT CONTROL BLOCK: l I

l l l l l .

o lh. (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) l io !'I3 h9 l L_ LICLNJEE 7

IJlM CoGE l F l 1 lh! 0l 0l -l 0lLICENSE 14 is 0l 0l 0l 0l -l 0l 0l@l NU?/Siet 23 in 4l 1l 1l 1l 1l@l57 CAT LtCE.'.$E TYPE JO l

58 l@

COYT

~

lo!1!

$f[$ l L l@l 0 l 5 l DOCKET t>0 61 0 l 0 NUMBERl 0 l 3 l 4 68 l 8@l 60 0 lEVENT 5 l DATE 2 l8 l 8 l0 @l J4 75 8l0 l0 l6 l2 l580l@

REPORT D ATE EVENT DESCEPTION AND PROB ABLE CONSEQUENCES h lo t a; i At 2200 on 5-28-80, during the performance of FNP-1-STP-11.6 (Residual Heat Removal l lo la 4 i Valves Inservice Test), the 1A RHR Heat Exchanger discharge valve (FCV603A) failed tog g o i4 j l stroke close. It remained in the required open position. As a result of being l go,,g) unable to stroke the valve, it was declared inoperable. Tech. Spec. 3.5.2, in part,;

o 9; i requires the valve to be operable. Tech. Spec. 3.5.2 action statement requirements ;

l0l7ll were met. Health and safety of the public were not affected. l IOlai i I 7 6 3 80 DE CODE SUSC E COMPONENT CODE SLBC dE S E la191 7 8 l Cl Flh Wh l Z lh l Vl Al Ll Vl 0l Pl@ ]@ l Zl@

9 to 11 12 13 18 10 20 SEQUENTIAL OCCURRENCE REPORT REVISION

,_ EVENT YE AR REPORT No. CODE TYPE No.

h ,"LE jpg R RO

_ l288 22l 0l l-l 23 l0 l3 l6 l 24 26 lfl 27 l 0l 3l 23 2J lLl 3J

[.__j 33 lol 32 KE AC OP O PL NT MEr HOURS S B i E FoR B. SUPPLIE MANUFAC RER I B IhWh Wh JJ 34 35 ISh 3d 'lll 0l 0l 0l 0l 40 yg 41 l Njg l Alg lR l3 l4 l 4[g 42 43 44 47 CAUSE DESC.41PTION AND CORRECTIVE ACTIONS li j o j i This event was caused by a cap screw connecting the valve actuator' to the valve shaf tl gl coming out. 'Ihe cap screw was replaced, the test successfully reperformed, and the j

,,,,,; valve was declared operable at 0950 on 5-29-80. The last STP was successfully  ;

,,,i l performed on 2-28-80. No cause could be determined for the cap screw coming out. g g; No maintenance had been performed that involved the cap screw since the plant was  ;

7 3 3 80 STA $  % POWER OTHER STATUS Dis RY OISCOVERY DESCRIPTION I t iS8 I lE lh l 1l 0 l 0 l@l NA l W@l Operator observation l 7 1 12 13 44 43 46 63 AELEA5EO OF RELE ASE AP'OL'NT OF ACTIVITY LOCATION OF RELEASE l' H '; 'I z l @' llj@l NA l l NA l

' " 8 PwSnNELhPoseES -

NuuseR TvPE cESCRiPTiON@

l i l 71 10 1 01 Ol@l Z l@l NA [

' ' ' 8a

.ERSONNE L IN3UL NuvsER oESCRiaTiONh li p i 101 010 i3)I NA l 7 8 9 11 12 go 1.05S CF OR DA*JAGE TO FACILITY Q TYPE DESCRIP TION v I i I:,I l Z l@l NA l

7 4 's 10 SQ 2 n  ::sy t f@OESCRtPTION

_IN l I 1111 t i l i l l i t t i 8 001010 VW# w. c. Hairston,111 t--- m sarare m -_ e [205) 899-5156 =

~

6..

CAUSE DESCRIPTION AND CORRECTIVE ACTIONS - LER 80-036/03L-0 initially placed into operation. The cap screws in similar valves were checked and found to be satisfactory. This incident in considered to be an tsolated occurrence.

Y t

e en l

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