ML18348A211

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LER 1977-045-00 to Replace Improper Terminology Seal Bladder with Term Seal Ring, LER 1977-046-00 & LER 1977-048-00 Re Service Water Pump Check Valve Failure
ML18348A211
Person / Time
Site: Palisades Entergy icon.png
Issue date: 10/18/1977
From: Hoffman D
Consumers Power Co
To: James Keppler
NRC/RGN-III
References
LER 1977-045-00, LER 1977-046-00, LER 1977-048-00
Download: ML18348A211 (4)
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  • Power company General Offices: Z12 West Michigan Avenue, Jackson, Michigan 49201
  • Area Code 517 788-0550 October l8, l977 Mr James G Keppler Office of Inspection and Enforcement Region III US Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60l37 DOCKET 50-255 - LICENSE DPR PALISADES PLP~TT - ER-77-046, ER-77-048 Ali!D CORRECTED ER-77-045 Attached are two 30-day reportable occurrences, ER-77-046 and ER-77-048 which relate to a service water pump check valve failure and improper primary coolant low flow instrument settings. Event RepQrt 77-045 is being corrected to replace improper terminology "seal bladder" with the term "s.eal ring" because the valve in question does not have inflatable seals.

Event Report 77-048 is being submitted after the 30-day reporting deadline of September 15, l977 because it was not classified as reportable until October l+,

1977.

David P Hoffman Assistant Nuclear Licensing Administrator CC: ASchwencer, USNRC 0 CT 2 O 19_7l_

'CEN~EE EVENT REPORT Palisades

  • CONTROL BLOCK: I...._*~' ---L.l_.I_.1--'l.....__,I [PLEASE PRINT ALL REQUIRED INFORMATION)

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  • LICENSEE .. LICENSE EVENT
  • NAME LICENSE NUMBER TYPE TYPE

@El I Ml rl Pl Af tj aj lolol-10101010101-1 010 I 411 11 11 11 I 1° 1332I 7 8 9 14 15 25 26 30 31 REPOm: REPORT TYPE SOURCE OOCKeT NUMBER EVENT DATE REPORT CATE 7

@IT]coN'T 8

r *I 58*I 57

~

59 LB 60 1°151°1-1°1~15151 61 68

  • I 69 01 91 21 01 71 71 74 1110111817171 75 80 EVENT DESCRIPTION

@:@] I During test of service water pump P-7B, the discharge check valve failed closed

- - - -, 8-9 80 '--

loj3j I rendering the pump inoperable. Event reportable per Tech Spec 3.4.2. Redundant I 7 8 9 80 lol41 I pumps were in operation. Event is repetitive (ER-TT-19) check valve repaired and I 7 8 9 80 lolsl I pump tested satisfactorily on 9-20-77. (ER-77-46) I 7 8 9 80 lolsl 7 8 9 PR:ME 80 SYSTEM CAUSE COMPONENT COMPONENT COOE SUPPLIER MANUFACTURER VIOLATION w

CODE COMPONENT COOE 7

@EJ lwl Al 8 9 10 11 12 lvlAl1lvlElxl 17 w 43 IcI2 I5I5I 44' 47 L!J 48 CAUSE DESCRIPTION

!olel I .Check valve flapper stuck shut due to corroded hinge pin (CHAPMAN 16-inch split I 7 8 9 80

. ~9 I body check valve) . Annual PM to inspect and lubricate valve is expected to prevent I 8 9 80 o I -z.*e-cnrrence -- I 1 8 9 80 FACILITY METHOD OF STATUS  % POWER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION EE1 7 8 9

~ I 1 I 0 I 012I 10 13 N/A 44 I ~45 46 N/A 80 FORM OF ACTIVITY CONTENT rn 7 8 RELEASED l.!J 9

OF RELEASE

~I11 10 AMOUNT OF ACTIVITY N/A 44 I 45 N/A LOCATION OF RELEASE

.80 PERSONNEL EXPOSURES NUMBER TYPE OESCRIPTION

!Tifil I 01 01 q ~12 N/A 1*~3"'""."""" _________________,....______"'"".""""__________________________;,_____________ 8~0 7 8 9 11 PERS'ONNEL INJURIES NUMBER OESCjRIPTION 1EE]a 9I 01 01 911 1~2 N/A

____________ _,....____________________________________,....___,...._________,....________ e-'o PROBABLE CONSEQUENCES fil'fil 7 8 9 N/A 80 LOSS OR DAMAGE TO FACILITY 7OE. 8 w TYPE 9 .

DESCRIPTION N/A 10!::-_;..----------------------:---------------------------------------------__;, _______JBO PUBLICITY E0 N/A 89 80

  • ADDITIONAL FACTORS

~ N/A 7 B 9 80 7

!illB 9 80

~'

I .~ .

CONTROL BLOCK:j_

1

  • LICENSEE EVENT REPORT

_...__l_l_l___.l_I 6

  • Palisades

[PLEASE PRINT ALL REQUIRED INFORMATION)

LICENSEE LICENSE EVENT NAME LICENSE NUMBER TYPE TYPE

@III I Ml I I p I Al LI- II I 0 I 0 1-1 0 I 0 I 0 I 0 I 0 1-1 0 I 0 I .I 4I I I 1 I 1 I l *I lo 13 I 7 8 9. 14 15 25 26 30 31 32 REPORT REPORT TYPE SOURCE DOCKET NUMBER EVENT OATE REPORT OATE 7

@mcoN'T 8

r *I *I L1J 57 58 59 UJ 60 I ol 61 51 ol ~I o I 2 I 5 I 5 I I o I 8 I* 1 I 6 I 1 I 1 I I 1 I o I 1 I 8 I 1 I 1 I 68 69 74 75 80 EVENT DESCRIPTION 10!2! I During surveillance of low primary coolant flow detection channels, trip values for I 7 8 9 80 lol3I I 3 and 4 pump operating modes wer~ found to exceed limiting safety system settings I 7 8 9 80 lol41 I of spec. 2.3. Event is not repetitive. All flow transmitters supplying signals to I 7 8 9 80 lolsl J the low flow channels were replaced prior to start-up. (ER-77-048) I 7 8 9 . 80 lol6I 7 8 9 PRIME BO SYSTEM CAUSE COMPONENT COMPONENT COOE CODE COMPONENT COOE SUPPLIER MANUFACTURER V!CLATION

@01 rfAI 7 8 9 10 UJ11 I r I NI s I *Tl RI ul 12 17 LlJ 43 I B I 0 18 I 0 I 44 47 w48 CAUSE DESCRIPTION

!ale! J Cause was inaccurate signal from transmitter (Barton model 296 _with model 199 bellows) I 7 8 8 9 j which resulted from zero and span drift over the calibration interval. Replacement 6

80 l

I with different type instrument is e.xpected to prevent similar failures in the future. I 7 8 9 80 FACILITY METHOD OF ITEl8 7

w STATUS 9 10

% POWER I0 I 0 I 0 I 12 13 OTHER STATUS

'~N_/__

A _____....,.I 44 w

DISCOVERY 45 46 DISCOVERY DESCRIPTION l.,,.._.._N/_A_ _ _ _ _ _ _ _ ______,

80 FORM OF ACTIVITY CONTENT 7

rn 8 W

RELEASED 9

W OF RELEASE 10 11 AMOUNT OF ACTIVITY l___.N/_A_ _ _ _ _ _,

44 45 LOCATION OF RELEASE

_.N/_A_ _ _ _ _ _ _ _ _ _ ___,

aa PERSONNEL EXPOSURES

[ill] lolol al NUMBER L:fJ TYPE DESCRIPTION

_N_/A_____________________________________________.

7 8 9

  • 11 12 13 BO PERSONNEL INJURIES NUMBER DESCRIPTION

[!EJ jO!OI Oj .__N_/_A______________________________________....________~

7 8 9 11 12 80 rn 7 8 g PROBABLE CONSEQUEr-TCES N/A 80 LOSS. OR DAMAGE TO FACILITY TYPE DESCRIPTION 7l1jsj8 9~ N/A 10.,,......~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~8~0 PUBLICITY

. . . . N/A 80 ADDITIONAL FACTORS

~ N/A 7 8 9 80 IT@

7 8 9 60

A CORRECTED . *

~CENSEE EVENT REPORT Palisades CONTROL BLOCK: _I__.__...I_.l_.l__l___.I [PLEASE PRINT ALL REQUIRED INFORMATION]

1 6 LICENSEE LICENSE EVENT

,

  • NAME LICENSE NUMBER TYPE TYPE
  • a~ IMlrlPIAILl1I Io Io 1-1 ol ol o Io Io 1-1 o Io I l411l1l1l1I Io I1 I

. 7 8 9 14 15 25 26 30 31 32 REPOR! REPORT OOCKET NUMBER EVENT OATE REPORT CATE

@ill coN'T r *- 1

  • 1 TYPE SOURCE w

LLl lolsl ol~lol2lslsl lol9l11617171 lol9l2l9l7l1l 78 57 58 59 60 61 68 69 74 75 80 EVENT DESCRIPTION loj2j I Investigation has revealed that loss of the air supply to the containment building I 7 8 9 80 lol3l l.___P_ur_g_e_i_so_l_a_t_i_o_n_v_a_lv_*e_s_(_c_v_-_1_8_0_3_,_-__1_8_0_5_,_-_1_8_0_6_,_-_1_80_7_,_-_1_8_1_3_an_d_-_1_8_1_4_)_w __n_1_r_e_s_ul_*_t_ __,I 7 8 9 80 7lol418 9!.--____________

I in deuressurization .....,,..____________________

of the seal ..............____......______________

rings which could -=___........

cause _________

loss of containment integrityJ

"'""'"'"""""---=---=-.;.;---""'"""""""""---~8~0 lol51 I This failure mode had not been considered in the FSAR. Seal pressures are being I*

7 89 00 lolsl I checked once per shi~ to verify operability of seal ring air supply. (ER-77-045) I 7 8 9 PRIME corrected 80 SYSTEM CAUSE COMPON811T COMPONENT COOE COOE COMPONENT CODE SUPPLIER MANUFACTURER VlOlATXJN 7

lo'71 I sI D I W 8 9 10 11 12 lvlAILIVIElxJ 17 UJ 43 Ic l 5 44 18 11 I 47 w48 CAUSE DESCRIPTION Iola! l.__T_h_e_v_a_l_v_e_s_(_c_o_n_t_in_en_t_a_l_E_q_ui_._P_/_Typ __e_92_2_o_)_a_r_e_n_o_t_p_ro_v_1_*d_e_d_w_i_t_h_a_r_e_dun_d_a_n_t_a_i_r_ _ ___,I 7 8 9 80 lolsl ~I__s_up.._p.._l...:Y,__t_o_ma_i_n_t_a_i_n_,_s_e_al_r_i_*n_.g....._..p,_r_e_s_s_ur_e_._A_r_e_d_un_d_a_n_t_a_ir_s_o_ur_c_e_w_i_l_l_b_e_p._r_o_v_i_*d_e_d_a_s_ __.I 6rrN j

~9 soon as feasible.

8 00 l

FACILITY METHOD OF

% POllVER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION w

STATUS EEi8 L!.J Iii ol al ..........N~/A________~I 7 9 10 12 13 44 45 FORM OF ACTIVITY CONTENT 7

rn 8 RELEASED W

9 OF RELEASE W l_.....

10 11 AMOUNT OF ACTIVITY N/_A_ _ _ _ _I 44 45 N/A LOCATION OF RELEASE 80 PERSONNEL EXPOSURES NUMBER 11E)lololol 7 8 9 11 PERS.ONNEL INJURIES NUMBER DESCRIPTION lIEI I 01 0 I 0111 7 8 9 N/A 1~2-----------------------------------------8~0 PROBABLE CONSEQUENCES E1fi8l 9 7

NA 80 LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION IIlfil8 9~ 10~-N~/_A-------------------------------------------------------,~

7 80 PUBLICITY GEi N/A 7 8 9 80

  • ADDITIONAL FACTORS

~ N/A 7 8 9 80 illfil8 9 7 80

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