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=Text=
=Text=
{{#Wiki_filter:* ****
{{#Wiki_filter:consumers
* consumers Power company General' Offices: Zl2 West Michigan Avenue, Jackson, Michigan 49201
* Power company General' Offices: Zl2 West Michigan Avenue, Jackson, Michigan 49201
* Area Code 517 788-0550 August 26, 1977 J.legu\atory Mr James G Keppler Office of Inspection and Enforcement Region III US Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 DOCKET 50-255, LICENSE DPR-20 -PALISADES PLANT -GR-77-038  
* Area Code 517 788-0550 August 26, 1977 File Cy.
-ABNORMAL DEGRADATION OF CONTAINMENT I BOUNDARY File Cy. Attached is a reportable occurrence relating to degradation of a containment boundary for the Palisades Plant. The event was reported by Telex on August 15, 1977. David P Hofi'man Assistant Nuclear Licensing Administrator CC: ASchwencer, USNRC LICENSEE EVENT REPOR,. , Palisades CONTROL BLOCK: -.I _...___...I
J.legu\atory
__...I __._I _l__.1 [PLEASE PRINT ALL REQUIRED INFORMATION]
                                            ~---*-*
UCENse NAME 01,1 Ml II Pl Al Lil I 7 8 9 14 1 6 l.ICENSE NUMBER' lo Io 1-1 ol ol ol ol ol-lo lo I 15 25 NUMBER LICENSE TYPE 14111111111 26 30 EVENT CATE EVENT TYPE Io 11 I 31 32 REPORT CATE @m.coN'T f*T_*_I 7 B 57 58 1015101-101215151 I o I 8 I ii 4 I 7 I 1 I lol8l2l6l1l1I 61 68 69 74 75 BO EVENT DESCRIPTION 10121 I During the quarterly testing of the containment penetration No 4, purge air exhaust, 7 8 9 lal3I I the penetration did not hold the minimum required pressure per Tech Spec 4.5.2. The 7 B 9 lol41 1 *plant was. shut down within the required 48 hours and repairs initiated to repair 7 B 9 lal51 I Fisher Continental butterfly valve (CV-1805). 7 8 9 lfilID 7 8 9 SYSTEM CAUSE cccE cocE @E}lslDl*W COMPONENT COCE lvlAILlvlElxl PRIME COMPONENT SUPPLIER w COMPONENT MANUFACTURER IF 11 121 5 I 7 8 9 10 11 12 17 43 44 47 CAUSE DESCRIPTION (ER-77-038)
Mr James G Keppler Office of Inspection and Enforcement Region III US Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 DOCKET 50-255, LICENSE DPR     PALISADES PLANT - GR-77-038 -
VIOl.ATION L!J 48 I 80 I 80 .I 80 I 80 80 falal I The valve is a 48" butterfly valve with pressurized rubber seats. Inspection of the I . 7 8 9 80 lalsl I seat showed that it was badly worn from interaction with.the valve disc. Normal wear I. 80 _I _ma ___ y_h_a_v_e_b_e_e_n_c_o_m
ABNORMAL DEGRADATION             OF CONTAINMENT I
__ p_o._un......,d_e_d_b
BOUNDARY Attached is a reportable occurrence relating to degradation of a containment boundary for the Palisades Plant. The event was reported by Telex on August 15, 1977.
__ y_im_p __ r_o .... p ... e_r_t_i_*mi_*_n  
    ~MuPfl 46~
.... g..._o_f_t_h_e_v_a_l_v_e_s_e_a_t
David P Hofi'man Assistant Nuclear Licensing Administrator CC:   ASchwencer, USNRC
__ p_r_e_s..,.s_ur  
 
..... _i_z_at_i_on_'w_it_h
LICENSEE EVENT REPOR,.
_ _,... _ _.I 8 9 FACILITY METHOO OF (contd on Line 18) 80 STATUS % POWER OTHER STATUS CISCCVERY CISCOVERY DESCRIPTION L!J I ii 0 I 0 I  
        ,                                                                                                                                       Palisades CONTROL           BLOCK: -.I_...___...I__...I__._I_l__.1                                         [PLEASE PRINT ALL REQUIRED INFORMATION]
.... d_. _ ___.I w .._I ______ N_A __ _,_ ___
1                              6 UCENse                                                                                                       LICENSE                      EVENT NAME                                           l.ICENSE NUMBER'                                              TYPE                        TYPE 01,1     Ml II Pl Al               Lil       I lo Io 1-1 ol ol ol ol ol-lo lo I                                       14111111111                        Io 11 I 7    8 9                                  14        15                                                           25     26                       30         31    32 COCK~        NUMBER                                EVENT CATE                             REPORT CATE
* 9 10 12 13 44 45 46 80 EE] 7. 8 FORM OF ACTIVITY.
    @m.coN'T         f*T_*_I                                   1015101-101215151                                       I o I 8 I ii 4 I 7 I 1 I lol8l2l6l1l1I 7    B          57    58                                61                                             68     69                           74         75                         BO EVENT DESCRIPTION 10121   I During the quarterly testing of the containment penetration No 4, purge air exhaust,                                                                                         I 7     8 9                                                                                                                                                                             80 lal3I I the penetration did not hold the minimum required pressure per Tech Spec 4.5.2.                                                                                       The       I 7     B 9                                                                                                                                                                             80 lol41 1*plant was. shut down within the required 48 hours and repairs initiated to repair                                                                                               .I 7 B 9                                                                                                                                                                                 80 lal51 I Fisher Continental butterfly valve (CV-1805).                                                                                                     (ER-77-038)                    I 7 8 9                                                                                                                                                                                 80 lfilID 7 8 9                                                                                                                                                                                 80 PRIME SYSTEM       CAUSE                                                     COMPONENT                    COMPONENT cccE         cocE                                                       SUPPLIER                  MANUFACTURER              VIOl.ATION w
CONTENT rn REl.EASEC OF REI.EASE AMOUNT OF ACTIVITY L!J W ___ N_A ___ ....,.I 7 8 9 10 11 44 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION 45 l.OCATION OF REI.EASE NA 80 010101 L!J .,....__N_A
COMPONENT COCE
_____________________________________ 7 8 9 11 12 13 80 PERS'ONNEL INJURIES NUMBER DESCRIPTION 12]] I 0 I 0 I 0 I .,....__N_A
  @E}lslDl*W                                 lvlAILlvlElxl                                                   IF 11     121 5   I           L!J 7     8 9 10               11           12                             17             43               44                 47           48 CAUSE DESCRIPTION falal I     The valve is a 48" butterfly valve with pressurized rubber seats.                                                                       Inspection of the                   I.
______________________________________________
7   8 9                                                                                                                                                                             80 lalsl I     seat showed that it was badly worn from interaction with.the valve disc.                                                                               Normal wear           I.
__. 7 8 9 11. 12 80 . -. .. --. -.. PROBABLE CONSEQUENCES m NA .. 7 8 9 80 LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION ll1fil NA 7 8 9 80 PUBLICITY IIB NA 7 8 9
~9                                                                                                                                                                                        80
* ADDITIONAL FACTORS Continued from "Cause Description" I valve closure.
~ _I_ma        ___y_h_a_v_e_b_e_e_n_c_o_m__p_o._un......,d_e_d_b__y_im_p__r_o....p...e_r_t_i_*mi_*_n....g..._o_f_t_h_e_v_a_l_v_e_s_e_a_t__p_r_e_s..,.s_ur
* The valve is designed so that after the valve is fully closed, 7 8 9 ber seat is to the seat against the valve disc. Inspection E]fil I cedures been modified to proper timing of seat pressurization. 7 8 9 80 the rub-I 80 pro-80}}
                                                                                                                                                        ....._i_z_at_i_on_'w_it_h_ _,..._ _.I 8 9   FACILITY                                                                         METHOO OF                                           (contd on Line 18)                   80 EE]
: 7. 8 STATUS L!J 9                10
                                      % POWER I ii 0 I 0 I 12 13 OTHER STATUS L~~~=iii....d_._             ___.I 44 w
CISCCVERY 45        46 CISCOVERY DESCRIPTION
                                                                                                                    . _I______N_A_ __,__ _ _~I
* 80 FORM OF ACTIVITY.       CONTENT 7
rn   8 REl.EASEC L!J 9
OF REI.EASE W
10        11 AMOUNT OF ACTIVITY
                                                ~I_ _ _N_A_ _ _. . ,.I 44             45 l.OCATION OF REI.EASE NA 80 PERSONNEL EXPOSURES
  ~I NUMBER 010101             L!J TYPE          DESCRIPTION
                                                .,....__N_A_____________________________________-------~
7     8 9               11       12       13                                                                                                                                       80 PERS'ONNEL INJURIES NUMBER             DESCRIPTION 12)) I 0 I 0 I 0 I             .,....__N_A________________________________________________.
7     8 9
                    . -. 11. 12 80 m PROBABLE CONSEQUENCES NA           ..
7     8 9                                                                                                                                                                             80 LOSS OR DAMAGE TO FACILITY TYPE         DESCRIPTION 7ll1fil89~                NA 10~----------------------------------------------------------------------------1                                                                                  80 PUBLICITY IIB           NA 7     8 9                                                                                                                                                                             80
* ADDITIONAL FACTORS                   Continued from "Cause Description"
~ I valve closure.
* The valve is designed so that after the valve is fully closed, the rub-I 7 8 9                                                                                                                                                                                 80 ber seat is press~ized to *f;~~e the seat against the valve disc. Inspection pro-E]fil I cedures hav~ been modified to emph~size proper timing of seat pressurization.
7 8 9                                                                                                                                                                                 80}}

Latest revision as of 03:41, 17 March 2020

License Event Report 1977-038-00 Re Abnormal Degradation of Containment Boundary
ML18348A220
Person / Time
Site: Palisades Entergy icon.png
Issue date: 08/26/1977
From: Hoffman D
Consumers Power Co
To: James Keppler
NRC/RGN-III
References
LER 1977-038-00
Download: ML18348A220 (2)
v • d • e


Text

consumers

  • Power company General' Offices: Zl2 West Michigan Avenue, Jackson, Michigan 49201
  • Area Code 517 788-0550 August 26, 1977 File Cy.

J.legu\atory

~---*-*

Mr James G Keppler Office of Inspection and Enforcement Region III US Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 DOCKET 50-255, LICENSE DPR PALISADES PLANT - GR-77-038 -

ABNORMAL DEGRADATION OF CONTAINMENT I

BOUNDARY Attached is a reportable occurrence relating to degradation of a containment boundary for the Palisades Plant. The event was reported by Telex on August 15, 1977.

~MuPfl 46~

David P Hofi'man Assistant Nuclear Licensing Administrator CC: ASchwencer, USNRC

LICENSEE EVENT REPOR,.

, Palisades CONTROL BLOCK: -.I_...___...I__...I__._I_l__.1 [PLEASE PRINT ALL REQUIRED INFORMATION]

1 6 UCENse LICENSE EVENT NAME l.ICENSE NUMBER' TYPE TYPE 01,1 Ml II Pl Al Lil I lo Io 1-1 ol ol ol ol ol-lo lo I 14111111111 Io 11 I 7 8 9 14 15 25 26 30 31 32 COCK~ NUMBER EVENT CATE REPORT CATE

@m.coN'T f*T_*_I 1015101-101215151 I o I 8 I ii 4 I 7 I 1 I lol8l2l6l1l1I 7 B 57 58 61 68 69 74 75 BO EVENT DESCRIPTION 10121 I During the quarterly testing of the containment penetration No 4, purge air exhaust, I 7 8 9 80 lal3I I the penetration did not hold the minimum required pressure per Tech Spec 4.5.2. The I 7 B 9 80 lol41 1*plant was. shut down within the required 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> and repairs initiated to repair .I 7 B 9 80 lal51 I Fisher Continental butterfly valve (CV-1805). (ER-77-038) I 7 8 9 80 lfilID 7 8 9 80 PRIME SYSTEM CAUSE COMPONENT COMPONENT cccE cocE SUPPLIER MANUFACTURER VIOl.ATION w

COMPONENT COCE

@E}lslDl*W lvlAILlvlElxl IF 11 121 5 I L!J 7 8 9 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION falal I The valve is a 48" butterfly valve with pressurized rubber seats. Inspection of the I.

7 8 9 80 lalsl I seat showed that it was badly worn from interaction with.the valve disc. Normal wear I.

~9 80

~ _I_ma ___y_h_a_v_e_b_e_e_n_c_o_m__p_o._un......,d_e_d_b__y_im_p__r_o....p...e_r_t_i_*mi_*_n....g..._o_f_t_h_e_v_a_l_v_e_s_e_a_t__p_r_e_s..,.s_ur

....._i_z_at_i_on_'w_it_h_ _,..._ _.I 8 9 FACILITY METHOO OF (contd on Line 18) 80 EE]

7. 8 STATUS L!J 9 10

% POWER I ii 0 I 0 I 12 13 OTHER STATUS L~~~=iii....d_._ ___.I 44 w

CISCCVERY 45 46 CISCOVERY DESCRIPTION

. _I______N_A_ __,__ _ _~I

  • 80 FORM OF ACTIVITY. CONTENT 7

rn 8 REl.EASEC L!J 9

OF REI.EASE W

10 11 AMOUNT OF ACTIVITY

~I_ _ _N_A_ _ _. . ,.I 44 45 l.OCATION OF REI.EASE NA 80 PERSONNEL EXPOSURES

~I NUMBER 010101 L!J TYPE DESCRIPTION

.,....__N_A_____________________________________-------~

7 8 9 11 12 13 80 PERS'ONNEL INJURIES NUMBER DESCRIPTION 12)) I 0 I 0 I 0 I .,....__N_A________________________________________________.

7 8 9

. -. 11. 12 80 m PROBABLE CONSEQUENCES NA ..

7 8 9 80 LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION 7ll1fil89~ NA 10~----------------------------------------------------------------------------1 80 PUBLICITY IIB NA 7 8 9 80

  • ADDITIONAL FACTORS Continued from "Cause Description"

~ I valve closure.

  • The valve is designed so that after the valve is fully closed, the rub-I 7 8 9 80 ber seat is press~ized to *f;~~e the seat against the valve disc. Inspection pro-E]fil I cedures hav~ been modified to emph~size proper timing of seat pressurization.

7 8 9 80

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