ML18110A897: Difference between revisions

From kanterella
Jump to navigation Jump to search
(Created page by program invented by StriderTol)
(Created page by program invented by StriderTol)
 
Line 17: Line 17:


=Text=
=Text=
{{#Wiki_filter:3 NIIC Fo<<M.195 l I2 76$NRC DISTRIBUTION roA=RT 50 DO U.S.NUCLL'AA REGULATORY COMMISSION Cl(ET MATERIAL DOCKET,NUMOLA Wo-z zw FILE NUMAEA INCIDENT REPORT TO: Mr.Norman C.Moseley FROM: Florida Power 5 Light Company Miami, Florida A~Di Schmidt DATE OF DOCUMENT 3/18/77 DATE RECEIVED 4/1/77 LETTER gOAIOINAL Hcor Y DESCAIPTION ONOTORIZEO RFUNC LASS IF I E D PAOP INPUT FOAM ENCLOSURE NUMOEA OF COPIES AECEIVED Ltr trans the following:
{{#Wiki_filter:3 U.S. NUCLL'AA REGULATORY COMMISSION DOCKET,NUMOLA NIIC Fo<<M.195 I2 76$
RCKNOWX,EDGED
l                                                                  Wo- z zw FILE NUMAEA NRC DISTRIBUTION roA=         RT 50 DO Cl(ET MATERIAL                         INCIDENT REPORT TO:                                           FROM:                                       DATE OF DOCUMENT Florida   Power 5   Light   Company             3/18/77 Mr. Norman C. Moseley                    Miami, Florida                             DATE RECEIVED A~ Di Schmidt                                     4/1/77 LETTER               ONOTORIZEO          PAOP                    INPUT FOAM          NUMOEA OF COPIES AECEIVED gOAIOINAL           RFUNC LASS IF I E D Hcor  Y DESCAIPTION                                                    ENCLOSURE
~~Licensee Event Report (RO 50-33'5/V7-10) on 2/17/77 concerning an alarm being received in the control room indicating, the circuit breaker for the<<C<<steam/riven auxiliafI feedwater pump steam valve cdntrol circuit tripped.~~~~~PLANT NAME: St.Luciq Unit No, 1 (1-P)(2-P)~RJL ,LIO NOT REMOVL('OTE:
                                                                                                          ~~
XF PERSOKKL EXPOSURE XS INVOLVED SEND DIRECTLY TO KREGER/J, COLLINS BRANCH CHIEF: 8 3 CYS FOR ACTION LXCo ASST,: M CYS ACRS CYS ROLQQ4Q S NT FOR ACTION/INFORMATION Ch A TI3<<REG EELE R~EcM (2)MIPC SCHROEDER/IPPOLXTO HOUSTON NOVAK/CHECK GRDIE S CASE BUTLER HANAUER TEDESCO/MACCARY EXSENHUT BAER SHAO VOLLMER/BUNCH KREGER/J COLLINS 3 ,INTERNAL D I STR I BUTION LPDR4 TIC: EXTERNAL DISTRIBUTION CONTRSL NUMI3ER~7 Q'Qi p/gi y7 N'/NAc ro<<M 106 I2 70) e r p i f ug 1"Y
Ltr trans     the following:                               Licensee Event Report (RO 50-33'5/V7-10) on 2/17/77 concerning an alarm being received in the control room indicating, the circuit breaker for the <<C<< steam /riven auxiliafI RCKNOWX,EDGED                                    feedwater pump steam valve cdntrol circuit tripped.   ~ ~ ~ ~ ~
~.(ti~~~j h.f Qllg FLORIDA POWER 8(LIGHT COMPANY March 18, 1977 PRN-LI-77-72 Mr.Norman C.Moseley, Director, Region Al."il f mph Office of Inspection and Enforcement U.S.Nuclear Regulatory Commission 230 Peachtree Street, N.W., Suite 1217 Atlanta, Georgia 30303
PLANT NAME:
St. Luciq Unit No,       1                       (1-P)       (2-P )               ~
RJL                                                                     XF PERSOKKL EXPOSURE XS INVOLVED
                    ,LIO NOT REMOVL('OTE:                         SEND DIRECTLY TO KREGER/J, COLLINS FOR ACTION/INFORMATION                                        TI3 BRANCH CHIEF:                               Ch  A 8 3 CYS FOR ACTION LXCo ASST,:
M     CYS ACRS       CYS ROLQQ4Q S NT
                                                  ,INTERNAL D I STR I BUTION
    <<REG EELE R
      ~EcM (2)                               3 MIPC SCHROEDER/IPPOLXTO HOUSTON NOVAK/CHECK GRDIE S CASE BUTLER HANAUER TEDESCO/MACCARY EXSENHUT BAER SHAO VOLLMER/BUNCH KREGER/J     COLLINS EXTERNAL DISTRIBUTION                                         CONTRSL NUMI3ER LPDR4                                                                                    ~
7 Q'Qi p   /gi y7 TIC:
N '/
NAc ro<<M 106 I2 70)


==Dear Mr.Moseley:==
p e r i
REPORTABLE OCCURRENCE 335-77-10 ST., LUCIE UNIT 1 DATE OF OCCURRENCE:
ug 1 "Y    f
FEBRUARY 17, 1977 STEAM DRIVEN AUXILIARY FEEDWATER PUMP The attached Licensee Event Report is being submitted in accordance with Technical Specification 6.9 to provide 30-day notification of the subject occurrence.
 
Very truly yours, D.Schmidt Vice President Power Resources MAS/cpc Attachment.
~ .( ti~ ~
cc: Robert Lowenstein, Esquire Director, Office of Inspection and Enforcement (30)Director, Office of Management Information and Program Control (3)'7'll'0'/~0'EOPLE...
          ~ j h.
SERVING PEOPLE  
f                                                                                          Qllg FLORIDA POWER 8( LIGHT COMPANY March 18, 1977 PRN-LI-77-72 Mr. Norman C. Moseley, Director, Region Office of Inspection and Enforcement A      l."il fmph U. S. Nuclear Regulatory Commission 230 Peachtree Street, N. W., Suite 1217 Atlanta, Georgia    30303
~~I C A l c~,,~),+<$+<C.i r
 
~"~ir~CONTROL 8LOCK: LICENSEE EVENT REPORT gP~SE PAINT ALL AEOUIAEO INFORMATION)
==Dear Mr. Moseley:==
UCENSEE NAME,[op)FLsLsi o 7'9 14 15 UCENSE NUMBER 0-0 0 0 0 0-0 0 25 UCENSE TYPE EVENT TYPF I, 1 1 1 1~0 26 30 31 32 REPORT REPORT CATEGORY TYPE SOURCE[OO1jcoN'r
 
~~L L 7 8 57 58 59 60 EVENT DESCRIPTION Jog OOCKET NUMBER~EVENT OATE REPORT OATE 0 0-0 0 2 l 7 7 61 68 69 74 75 80 7 8 9 I circuit breaker for the"C" steam d iven aux ia fe d at r um e 7 89[OD4}circuit ad s etio f t e circu t show t d te m 7 8 9 Qg sensin a d control circuit.The s orted erminal was re i ed an thp 7 aa controller re laced.ee ao 80 80 ao I 7 8 9 SYSTEM CAUSE COOE COOE[007]LHHJ~B o 7 8 9 10 11 12 CAUSE DESCRIPTION Q~g he v v COMPONENT COOE K T B R K~A 17'3 b COMPONENT MANUFD~iFER W 2 lo 44 47 N 4a 80 7 8 9 toom tri ed due to a shorted terminal caused b moisture buildu in a control box.7 8 9~10 80 ao OTHER STATUS NA AMOUNT OF ACTIVITY NA 7 8 9 LOSS OR DAMAGE TO FACILITY TYPE OESCRIPTION
REPORTABLE OCCURRENCE 335-77-10 ST., LUCIE UNIT 1 DATE OF OCCURRENCE:   FEBRUARY 17, 1977 STEAM DRIVEN AUXILIARY FEEDWATER PUMP The attached Licensee Event Report is being submitted in accordance   with Technical Specification 6.9 to provide 30-day notification of the subject occurrence.
~16~Z, 7 89 10 PUBLICITY 7 89 FACIUTY STATUS.%POWER EE.L~J 7.8 9.10 12 13 FORM OF ACTIVITY COATENT RELEASEO OF RELEASE KIH 7 8 9 10 11 PERSONNEL EXPOSURES , NUMBER TYPE OESCRIPTION
Very truly yours, D. Schmidt Vice President Power Resources MAS/cpc Attachment.
~~~oo o Lzj 7 8 9 11 12 13'EFISONNEL IN JURIFS Kl LZYJaJ PROBABLE CONSEQUENCES Q~g METHOO OF OISCOVERY 44 45 NA NA CISCOVERY OESCRIPTION LOCATION OF RELEASE NA ao ao ao 80 ao 7 8 9 ADDITIONAL FACTORS Q~I See a e two for continuation of Event Descri tion.7 89.ao 80 7 89 NAME.M.A.Scho man PHONE.305/552-3779 GPO 441 80 t REPORTABLE-OCCURRENCE 335-77-10 LICENSEE EVENT REPORT.PAGE T)'(0 EVENT DESCRIPTION (Continued)
cc:   Robert Lowenstein, Esquire Director, Office of Inspection and Enforcement       (30)
During the time the"C" auxiliary feedwater pump was out of service, both electric-driven auxiliary feedvrater pumps were operable as required by Technical Specification 3.7.1.2.The"C" auxiliary feedwater pump was returned to'operable status within 72 hours as required by the Technical Specification.
Director, Office of Management Information and Program Control (3)
This was the fifth reportable occurrence associated with the steam driven auxiliary feedwater pump.Two previous occurrences involved an open circuit in a solder joint (335-76-11) and a wiring diagram error (335-76-13) and are unrelated.
                                                                                      '7
The other three occurrences (335-76-22, 335-76-36 and 335-7>6-47) are related in that they involve control circuit corrosion.
                                                                                        'll'0'/~0'EOPLE...
Action taken since the last reportable occurrence (335-76-47) has been the completion of jerouting of nearby steam drains away from the vicinity of the turbine.c)I Other means of long term corrective action are being studied.One possibility'~
SERVING PEOPLE
under consideration to further correct the situation is to replace the+resent
 
~junction boxes and relocate them to a position off the turbine, making:<hem less susceptible to the effects of heat and moisture buildup.This will require a cold shutdown of the plant of sufficient duration to permit accomplishment.
                    ~ ~
(-335-77-10).
I C
C I 4J Bm a~A~~Cfl~CO~tel~C I~j}}
c~,,~
r
      ),
        +
A    l
          <$ +< C.i
 
LICENSEE EVENT REPORT
~ "~ir     ~
CONTROL 8LOCK:                                                                       gP ~SE PAINT ALL AEOUIAEO INFORMATION)
UCENSEE                                                                                       UCENSE
[op) FLsLsi EVENT NAME,                                            UCENSE NUMBER                                 TYPE                  TYPF 0                       0 7'9                                                        o    0           0 0   0   0           0       I, 1     1     1   1     ~0
                      ~
14          15                                            25    26                     30   31     32 REPORT             REPORT CATEGORY         TYPE             SOURCE               OOCKET NUMBER                    ~  EVENT OATE                      REPORT OATE
[OO1jcoN'r                         ~L                   L       0       0     0                     0 2     l   7          7 7   8            57        58      59                60      61                               68   69                         74   75                   80 I
EVENT DESCRIPTION Jog 7   8 9                                                                                                                                                         ao circuit         breaker                 for the     "C" steam d iven aux             ia     fe d   at r     um         e 7 89                                                                                                                                                             80 7
[OD4}
8 9 circuit           ad                               s   etio     ft    e circu   t show               t   d   te   m 80 7
Qg aa sensin         a d   control circuit.                     The s   orted       erminal was re         i ed     an     thp               ee ao controller re laced.                                                                                                                               I 7   8 9                                                                                                                                                         80 SYSTEM           CAUSE                                                                       COMPONENT COOE         COOE                      COMPONENT COOE                                 MANUFD~iFER
[007]
7 8 9 10 LHHJ CAUSE DESCRIPTION
                                ~B 11        12 o          K   T B   R   K 17   '3~A 44 W   2     lo 47 N
4a Q~g              he              v v                                          b 7  8 9                                                                                                                                                          80 toom 7 8 9 tri       ed due       to       a       shorted terminal caused b moisture buildu                         in     a   control box.
ao
  ~10 7 89 FACIUTY                                                                     METHOO OF STATUS         .   % POWER                           OTHER STATUS          OISCOVERY                      CISCOVERY OESCRIPTION EE         . L~J                                                     NA
: 7. 8           9     .         10                     12 13                                                                                                 ao FORM OF ACTIVITY         COATENT RELEASEO         OF RELEASE                      AMOUNT OF ACTIVITY                                          LOCATION OF RELEASE KIH                                                               NA                                                                NA 7   8           9                 10     11                                             44      45 PERSONNEL EXPOSURES
                , NUMBER             TYPE               OESCRIPTION
  ~~ ~oo                   o       Lzj 7   8 9                   11     12                                                                                                                           ao INJURIFS    13'EFISONNEL Kl LZYJaJ                                                                                   NA ao PROBABLE CONSEQUENCES Q~g                                                                                         NA 7    8 9                                                                                                                                                        80 LOSS OR DAMAGE TO FACILITY TYPE          OESCRIPTION
  ~16      ~Z, 7    89              10                                                                                                                                          ao PUBLICITY 7   8 9                                                                                                                                                       .ao ADDITIONAL FACTORS 7
Q~ I89    See         a e two         for continuation of                     Event Descri       tion.
80 7     89                                                                                                                                                         80 NAME. M.       A. Scho                 man                                             PHONE. 305/552-3779 GPO 441
 
REPORTABLE- OCCURRENCE t
335-77-10 LICENSEE EVENT REPORT
. PAGE T)'(0 EVENT DESCRIPTION (Continued)
During the time the "C" auxiliary feedwater pump was out of service, both electric-driven auxiliary feedvrater pumps were operable as required by Technical Specification 3.7.1.2. The "C" auxiliary feedwater pump was returned to'operable status within 72 hours as required by the Technical Specification.
This was the fifth reportable occurrence associated with the steam driven auxiliary feedwater pump. Two previous occurrences involved an open circuit in a solder joint (335-76-11) and a wiring diagram error ( 335-76-13) and are unrelated. The other three occurrences (335-76-22, 335-76-36 and 335-7>6-47) are related in that they involve control circuit corrosion. Action taken since the last reportable occurrence (335-76-47) has been the completion of jerouting of nearby steam drains away from the vicinity of the turbine.         c       )I Other means of long term corrective action are being studied. One possibility'~
under consideration to further correct the situation is to replace the+resent   ~
junction boxes and relocate them to a position off the turbine, making:<hem less susceptible to the effects of heat and moisture buildup. This will require a cold shutdown of the plant of sufficient duration to permit accomplishment. (-335-77-10).
 
C I
4J Bm a~
A
~Cfl
~CO
    ~
I ~j
~  tel
~C}}

Latest revision as of 08:19, 21 October 2019

LER 1977-010-00 for St. Lucie Unit 1, Steam Driven Auxiliary Feedwater Pump
ML18110A897
Person / Time
Site: Saint Lucie NextEra Energy icon.png
Issue date: 03/18/1977
From: Schmidt A
Florida Power & Light Co
To: Moseley N
NRC/IE, NRC/RGN-II
References
PRN-LI-77-72 LER 1977-010-00
Download: ML18110A897 (7)
v • d • e


Text

3 U.S. NUCLL'AA REGULATORY COMMISSION DOCKET,NUMOLA NIIC Fo<<M.195 I2 76$

l Wo- z zw FILE NUMAEA NRC DISTRIBUTION roA= RT 50 DO Cl(ET MATERIAL INCIDENT REPORT TO: FROM: DATE OF DOCUMENT Florida Power 5 Light Company 3/18/77 Mr. Norman C. Moseley Miami, Florida DATE RECEIVED A~ Di Schmidt 4/1/77 LETTER ONOTORIZEO PAOP INPUT FOAM NUMOEA OF COPIES AECEIVED gOAIOINAL RFUNC LASS IF I E D Hcor Y DESCAIPTION ENCLOSURE

~~

Ltr trans the following: Licensee Event Report (RO 50-33'5/V7-10) on 2/17/77 concerning an alarm being received in the control room indicating, the circuit breaker for the <<C<< steam /riven auxiliafI RCKNOWX,EDGED feedwater pump steam valve cdntrol circuit tripped. ~ ~ ~ ~ ~

PLANT NAME:

St. Luciq Unit No, 1 (1-P) (2-P ) ~

RJL XF PERSOKKL EXPOSURE XS INVOLVED

,LIO NOT REMOVL('OTE: SEND DIRECTLY TO KREGER/J, COLLINS FOR ACTION/INFORMATION TI3 BRANCH CHIEF: Ch A 8 3 CYS FOR ACTION LXCo ASST,:

M CYS ACRS CYS ROLQQ4Q S NT

,INTERNAL D I STR I BUTION

<<REG EELE R

~EcM (2) 3 MIPC SCHROEDER/IPPOLXTO HOUSTON NOVAK/CHECK GRDIE S CASE BUTLER HANAUER TEDESCO/MACCARY EXSENHUT BAER SHAO VOLLMER/BUNCH KREGER/J COLLINS EXTERNAL DISTRIBUTION CONTRSL NUMI3ER LPDR4 ~

7 Q'Qi p /gi y7 TIC:

N '/

NAc ro<<M 106 I2 70)

p e r i

ug 1 "Y f

~ .( ti~ ~

~ j h.

f Qllg FLORIDA POWER 8( LIGHT COMPANY March 18, 1977 PRN-LI-77-72 Mr. Norman C. Moseley, Director, Region Office of Inspection and Enforcement A l."il fmph U. S. Nuclear Regulatory Commission 230 Peachtree Street, N. W., Suite 1217 Atlanta, Georgia 30303

Dear Mr. Moseley:

REPORTABLE OCCURRENCE 335-77-10 ST., LUCIE UNIT 1 DATE OF OCCURRENCE: FEBRUARY 17, 1977 STEAM DRIVEN AUXILIARY FEEDWATER PUMP The attached Licensee Event Report is being submitted in accordance with Technical Specification 6.9 to provide 30-day notification of the subject occurrence.

Very truly yours, D. Schmidt Vice President Power Resources MAS/cpc Attachment.

cc: Robert Lowenstein, Esquire Director, Office of Inspection and Enforcement (30)

Director, Office of Management Information and Program Control (3)

'7

'll'0'/~0'EOPLE...

SERVING PEOPLE

~ ~

I C

c~,,~

r

),

+

A l

<$ +< C.i

LICENSEE EVENT REPORT

~ "~ir ~

CONTROL 8LOCK: gP ~SE PAINT ALL AEOUIAEO INFORMATION)

UCENSEE UCENSE

[op) FLsLsi EVENT NAME, UCENSE NUMBER TYPE TYPF 0 0 7'9 o 0 0 0 0 0 0 I, 1 1 1 1 ~0

~

14 15 25 26 30 31 32 REPORT REPORT CATEGORY TYPE SOURCE OOCKET NUMBER ~ EVENT OATE REPORT OATE

[OO1jcoN'r ~L L 0 0 0 0 2 l 7 7 7 8 57 58 59 60 61 68 69 74 75 80 I

EVENT DESCRIPTION Jog 7 8 9 ao circuit breaker for the "C" steam d iven aux ia fe d at r um e 7 89 80 7

[OD4}

8 9 circuit ad s etio ft e circu t show t d te m 80 7

Qg aa sensin a d control circuit. The s orted erminal was re i ed an thp ee ao controller re laced. I 7 8 9 80 SYSTEM CAUSE COMPONENT COOE COOE COMPONENT COOE MANUFD~iFER

[007]

7 8 9 10 LHHJ CAUSE DESCRIPTION

~B 11 12 o K T B R K 17 '3~A 44 W 2 lo 47 N

4a Q~g he v v b 7 8 9 80 toom 7 8 9 tri ed due to a shorted terminal caused b moisture buildu in a control box.

ao

~10 7 89 FACIUTY METHOO OF STATUS .  % POWER OTHER STATUS OISCOVERY CISCOVERY OESCRIPTION EE . L~J NA

7. 8 9 . 10 12 13 ao FORM OF ACTIVITY COATENT RELEASEO OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE KIH NA NA 7 8 9 10 11 44 45 PERSONNEL EXPOSURES

, NUMBER TYPE OESCRIPTION

~~ ~oo o Lzj 7 8 9 11 12 ao INJURIFS 13'EFISONNEL Kl LZYJaJ NA ao PROBABLE CONSEQUENCES Q~g NA 7 8 9 80 LOSS OR DAMAGE TO FACILITY TYPE OESCRIPTION

~16 ~Z, 7 89 10 ao PUBLICITY 7 8 9 .ao ADDITIONAL FACTORS 7

Q~ I89 See a e two for continuation of Event Descri tion.

80 7 89 80 NAME. M. A. Scho man PHONE. 305/552-3779 GPO 441

REPORTABLE- OCCURRENCE t

335-77-10 LICENSEE EVENT REPORT

. PAGE T)'(0 EVENT DESCRIPTION (Continued)

During the time the "C" auxiliary feedwater pump was out of service, both electric-driven auxiliary feedvrater pumps were operable as required by Technical Specification 3.7.1.2. The "C" auxiliary feedwater pump was returned to'operable status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> as required by the Technical Specification.

This was the fifth reportable occurrence associated with the steam driven auxiliary feedwater pump. Two previous occurrences involved an open circuit in a solder joint (335-76-11) and a wiring diagram error ( 335-76-13) and are unrelated. The other three occurrences (335-76-22, 335-76-36 and 335-7>6-47) are related in that they involve control circuit corrosion. Action taken since the last reportable occurrence (335-76-47) has been the completion of jerouting of nearby steam drains away from the vicinity of the turbine. c )I Other means of long term corrective action are being studied. One possibility'~

under consideration to further correct the situation is to replace the+resent ~

junction boxes and relocate them to a position off the turbine, making:<hem less susceptible to the effects of heat and moisture buildup. This will require a cold shutdown of the plant of sufficient duration to permit accomplishment. (-335-77-10).

C I

4J Bm a~

A

~Cfl

~CO

~

I ~j

~ tel

~C

Retrieved from "https://kanterella.com/w/index.php?title=ML18110A897&oldid=1936567"