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| issue date = 03/18/1976
| issue date = 03/18/1976
| title = LER 1976-003-00 for St. Lucie Unit 1, a Design Error in Engineered Safety Features Actuation System
| title = LER 1976-003-00 for St. Lucie Unit 1, a Design Error in Engineered Safety Features Actuation System
| author name = Schmidt A D
| author name = Schmidt A
| author affiliation = Florida Power & Light Co
| author affiliation = Florida Power & Light Co
| addressee name = Moseley N C
| addressee name = Moseley N
| addressee affiliation = NRC/RGN-II
| addressee affiliation = NRC/RGN-II
| docket = 05000335
| docket = 05000335
Line 17: Line 17:


=Text=
=Text=
{{#Wiki_filter:NRC FORM 195 I2-76)L U.S.NUCLEAR REGULATORY COI MISSION DOCKET NUMBER;ro: MR N C MOSELEY FLORIDA POWER&LIGHT CP HIAHI,, FLA....A D SCHMIDT/LETTER+ORIGINAL CI COP Y 0 NOTOR IZED~NC LASS IF I ED PROP INPUT FORM NRC DISTRIBUTION FDR PART 50 DOCKET MATERIAL FILE NUMBER INCIDENT REPORT DATE OF DOCUMENT 3,-19-"t t DATE RECEIVED 3-Q4-7 t'UMBER OF COPIES RECEIVED Signs DESCRIPTION LTR TRANS THE FOLLOWING...
{{#Wiki_filter:NRC FORM 195                                         U.S. NUCLEAR REGULATORY COI MISSION DOCKET NUMBER I2-76)
ENCLOSURE/LICENSEE EVENT REPORT 50-335/76-3 ON 3-8-76 RE ESFAS'IRCUITRY DESIGN ERROR THAT CAUSED LOSS OF POWER CAUSING SIGNALS TO GO TO THE BYPASS MODE....PLANT NAME: NOTE: IF PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY TO KREGER/J, COLLINS SAFETY BRANCH CHIEF:~*LIC.ASST:~W/CYS ACRS CYS HOLDING/i',o ENT TO LA FOR ACTION/INFORMATION ENVIRO INTERNAL D IST RI BUTION NRC PDR 6 E 2 SCHROEDER/IPPOLITO NOVAK CHECK MES S lF E TEDE CO MACCA BAER SHAD VOLLMER BUNG KRE ER J OL NS LPDR TIC NSIC EXTERNAL DISTRIBUTION CONTROL NUMBER NRC FORM 195 I2.76) t l~q~x(P/g P.O.BOX 013100 MIAMI, FLA.33101 keZIilatop g os(et p]1 ,<<>>'IS~~V 4/Ill M~RP 6 l9 4.S.llllaSm SSGu4ggJQI
L FILE NUMBER NRC DISTRIBUTION FDR PART 50 DOCKET MATERIAL                                INCIDENT REPORT
~/CONNISSIOQ Mell Seel leSS Mr.Norman C;.os~/+rector, Region II Office of Inspec~hid
;ro:                                                 FLORIDA POWER & LIGHT CP           DATE OF DOCUMENT HIAHI,, FLA....                         3,-19-"t t MR N C MOSELEY                                                                    DATE RECEIVED A D SCHMIDT                              3-Q4   -7
~~and Enforcement U.S.Nuclear FRegulatory Commission 230 Peachtree Street, N.W., Suite 818 Atlanta, Georgia 30303 FLORIDA POWER 5 LIGHT COMPANY March 18, 1976 PRN-LI-7-54~
/LETTER                  0 NOTOR IZED          PROP                  INPUT FORM                  OF COPIES RECEIVED t'UMBER
    +ORIGINAL            ~NC LASS IF I ED CI COP Y                                                                                    Signs DESCRIPTION                                                   ENCLOSURE
                                                                    /
LTR TRANS THE FOLLOWING...                                   LICENSEE EVENT REPORT   50-335/76-3   ON 3-8-76   RE ESFAS'IRCUITRY DESIGN ERROR THAT CAUSED LOSS OF POWER CAUSING SIGNALS TO GO TO THE BYPASS MODE....
PLANT NAME:                                                     NOTE:     IF PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY TO KREGER/J, COLLINS
    ~*
W/
ACRS SAFETY BRANCH CHIEF:
LIC. ASST:
CYS CYS
                    ~
HOLDING/ ENT TO LA i',o FOR ACTION/INFORMATION               ENVIRO INTERNAL D IST RI BUTION NRC PDR 6 E 2 SCHROEDER/IPPOLITO NOVAK CHECK MES S     lF E TEDE CO MACCA BAER SHAD VOLLMER BUNG KRE ER J         OL NS EXTERNAL DISTRIBUTION                                       CONTROL NUMBER LPDR TIC NSIC NRC FORM 195 I2.76)


==Dear Mr.Moseley:==
t l~q
REPORTABLE OCCURRENCE 335-76-3 ST.LUCIE UNIT 1 DATE OF OCCURRENCE:
    ~x(
MARCH 8, 1976 DESIGN ERROR IN ENGINEERED SAFETY FEATURES ACTUATION SYSTEM The attached Licensee Event Report is being submitted in accordance with Technical Specification 6.6.l.a to provide prompt notification of the subject occurrence.
P
Very truly yours, A.D.Schmidt.Vice President Power Resources'AS/cpc Attachment u'I cc: Jack R.Newman, Esquire Director, Office of Inspection and Enforcement (40)Director, Office of Management Information and ,Program Control (3')HELPING BUILD FLORIDA p O.
  /g
UCENSEE NAME F L S I ,7 89.CATEGORY[001]coNT~7 8 57 58 S 1 0 14 15 REPORT.REPORT 59 60 ,r CONTROL BLOCK: LICENSEE EVENT REPORT t (P E PAINT ALL REQUIRED INFOAMATION3 6 UCENSE EVENT UCENSE NUMBER TYPE TYPE 0-0 0 0 0-0 0 4 1 1 1 1~0011 25 26 30 31 32 OOCKET NUMBER~EVENT OATE REPORT OATE 0 5 0-0 3 5 0 3 0 8 7 6 0.3 1 8 7 6 61 68 69 74" 75 80 EVENT DESCRIPTION Durin oreogerational core loadi an e ineering review by the FPL General Office 7 8 9[00~]E ineeri 80 Staff indicated that upon loss of TIovrer all ESFAS signals would go to the 7 8 9 80 toD4]b ass mode vrhereas onl the CSAS and RAS signals should do so.FSAR Section 7.3.1.4 7 8 9 80[OD~]re uires that si als other than CSAS and RAS go to the trip mode upon loss of povrer.7 8 9[oat)This is the first occurrence of this type.(335-76-3)..
 
80 7 8 9 SYSTEM.CAUSE COOE COOE COMPONENT COOE[QD>]~IB~B I N S T R 7 8 9 10 11 12 CAUSE DESCRIPTION tOOI This occurrence vras caused b 7 8 9 tODS]pr'RME~'80 COMPONENT COMPONENT SUPPUER MANUFACTURER VXKATKIN U A C 5 6 0 N 17 43'4 47 48 an ESFAS circuitr desi error.All ESFAS si als were 80 f ovrer Circuit modifications are bei 7 8 9 made.to compel vrith FSAR Section 7.3.1.4 and vrill be completed before entering 80 OTHER STATUS NA NA NA 7 89 FACIUTY STATUS%POWER Q~g~B~oo o 7 8 9 10 12 13 FORM OF ACTIVITY CONTENT RELEASEO OF RELEASE AMOUNT OF ACTIVITY Q>g z~z NA 7 8 9 10 11 PERSONNEL EXPOSURES NUMBER TYPE OESCRIPTION
P.O. BOX 013100 MIAMI,FLA. 33101 keZIilatop g os(et  p]1 FLORIDA POWER 5 LIGHT COMPANY
~~~~oo o z 7 89 11 12 13 PERS'ONNEL INJURIES OESCRIPTION Q4]0 0 0 7 8 9 11 12 PROBABLE CONSEQUENCES Q~g NA 44 45 80 60 80 METHOO OF 80 OISCOVERY OISCOVERY OESCRIPTION c'ngineering revievr of ESF circuitry 44 45 46 80.LOCATION OF RELEASE NA.7 89 LOSS OR DAMAGE TO FACILITY TYPE OESCRIPTION z 7 89 10 PUBLICITY 7 89 NA NA 80 80~80 ADDITIONAL FACTORS'~g Cause Descrintion Cont.: Technical S ecification mode 4.7 89 80 7 89 M.A.S ChO man 80 PHONE: CFO 4~)~SOT f%Ql J'gg}}
                                ,<<>>  'IS~                                          March 18, 1976
                          ~V          4 /Ill                                          PRN-LI-7 -54      ~
M~RP 6 l9 4.S. llllaSm SSGu4ggJQI CONNISSIOQ
                                                        ~/
Mell Seel leSS Mr. Norman                  C;. os~ /+rector,                Region  II Office of Inspec~hid ~~and Enforcement U. S. Nuclear FRegulatory Commission 230 Peachtree Street, N. W., Suite 818 Atlanta, Georgia 30303
 
==Dear Mr. Moseley:==
 
REPORTABLE OCCURRENCE           335-76-3 ST. LUCIE UNIT 1 DATE OF OCCURRENCE:               MARCH 8, 1976 DESIGN ERROR IN ENGINEERED SAFETY FEATURES ACTUATION SYSTEM The attached Licensee Event Report is being submitted in accordance with Technical Specification 6.6.l.a to provide prompt notification of the subject occurrence.
Very truly yours, A. D. Schmidt.
Vice President Power Resources'AS/cpc Attachment u'I cc:   Jack R. Newman, Esquire Director, Office of Inspection and Enforcement                                       (40)
Director, Office of Management Information and
                        ,Program Control (3')
HELPING BUILD FLORIDA
 
p O.
t
,r LICENSEE EVENT REPORT CONTROL BLOCK:                                                                         (P     E PAINT ALL REQUIRED INFOAMATION3 6
UCENSEE                                                                                          UCENSE               EVENT NAME                                          UCENSE NUMBER                                     TYPE                 TYPE F    L    S            I    S    1        0   0      0     0 0     0       0         0       4     1   1   1   1     ~0011
    ,7 89
                    ~
14    15                                              25     26                   30   31     32 REPORT. REPORT
                  . CATEGORY                                              OOCKET NUMBER                           ~ EVENT OATE                     REPORT OATE
[001]coNT                                                  0   5   0   0             3     5       0   3 0 8 7           6       0. 3   1   8   7       6 7  8        57        58              59      60      61                                 68     69                       74 " 75                             80 EVENT DESCRIPTION Durin oreogerational core loadi                                     an e     ineering review by the               FPL General       Office 7   8 9                                                                                                                                                           80
[00~]   E     ineeri                   Staff indicated that             upon loss       of   TIovrer   all   ESFAS   signals would go to the 7   8 9                                                                                                                                                           80 toD4]   b     ass mode                   vrhereas     onl the     CSAS   and RAS       signals should           do so. FSAR   Section 7.3.1.4 7   8 9                                                                                                                                                           80
[OD~]   re uires that si als other than CSAS and RAS go to the                                                 trip mode     upon loss       of   povrer.
7   8 9                                                                                                                                                         80
[oat)   This is the first occurrence of this type. (335-76-3)..
7   8 9                                                                                                                         '
pr'RME
                                                                                            ~                                                                        80 SYSTEM     . CAUSE                                               COMPONENT              COMPONENT COOE         COOE                     COMPONENT COOE             SUPPUER              MANUFACTURER            VXKATKIN
[QD>]
7
            ~IB 8 9 10
                            ~B 11              12 I   N     S   T   R   U 17 A
43        '4    C 5    6    0 47 N
48 CAUSE DESCRIPTION tOOI     This occurrence                       vras caused b         an ESFAS     circuitr         desi       error. All ESFAS si als             were 7 8 9                                                                                                                                                            80 tODS]
7  8 9 f     ovrer       Circuit modifications are bei 80 made     .to       compel           vrith   FSAR   Section 7.3.1.4 and             vrill be     completed before entering 7   89     FACIUTY                                                                   METHOO OF 80 STATUS                     % POWER                 OTHER STATUS          OISCOVERY                          OISCOVERY OESCRIPTION Q~g 8      9
                ~B                       ~oo         o                   NA                    c        'ngineering          revievr of    ESF    circuitry 80.
7                                 10             12 13                           44      45      46 FORM OF ACTIVITY           CONTENT RELEASEO         OF RELEASE                 AMOUNT OF ACTIVITY                                               LOCATION OF RELEASE Q>g         z                       ~z                       NA                                                              NA 7   8     9                         10     11                                   44        45                                                                  80 PERSONNEL EXPOSURES NUMBER                   TYPE     OESCRIPTION
    ~~~   ~oo         o                 z                                 NA 7 89                   11             12     13                                                                                                                   60 PERS'ONNEL INJURIES OESCRIPTION Q4]     0   0     0                                                   NA 7   8 9               11           12                                                                                                                           80 PROBABLE CONSEQUENCES Q~g                                                                     NA
  .7   89                                                                                                                                                           80 LOSS OR DAMAGE TO FACILITY TYPE       OESCRIPTION z                                                               NA 7   89         10                                                                                                                                               80 PUBLICITY NA 7   89                                                                                                                                                         ~ 80 ADDITIONAL       FACTORS'~
g   Cause       Descrintion                   Cont.   :   Technical     S ecification         mode     4.
7   89                                                                                                                                                           80 7   89                                                                                                                                                           80 M. A. S ChO   man                                                 PHONE:
CFO   4~) ~ SOT
 
J' f% Ql gg}}

Latest revision as of 07:20, 21 October 2019

LER 1976-003-00 for St. Lucie Unit 1, a Design Error in Engineered Safety Features Actuation System
ML18110A679
Person / Time
Site: Saint Lucie NextEra Energy icon.png
Issue date: 03/18/1976
From: Schmidt A
Florida Power & Light Co
To: Moseley N
NRC/RGN-II
References
PRN-LI-76-54 LER 1976-003-00
Download: ML18110A679 (6)
v • d • e


Text

NRC FORM 195 U.S. NUCLEAR REGULATORY COI MISSION DOCKET NUMBER I2-76)

L FILE NUMBER NRC DISTRIBUTION FDR PART 50 DOCKET MATERIAL INCIDENT REPORT

ro
FLORIDA POWER & LIGHT CP DATE OF DOCUMENT HIAHI,, FLA.... 3,-19-"t t MR N C MOSELEY DATE RECEIVED A D SCHMIDT 3-Q4 -7

/LETTER 0 NOTOR IZED PROP INPUT FORM OF COPIES RECEIVED t'UMBER

+ORIGINAL ~NC LASS IF I ED CI COP Y Signs DESCRIPTION ENCLOSURE

/

LTR TRANS THE FOLLOWING... LICENSEE EVENT REPORT 50-335/76-3 ON 3-8-76 RE ESFAS'IRCUITRY DESIGN ERROR THAT CAUSED LOSS OF POWER CAUSING SIGNALS TO GO TO THE BYPASS MODE....

PLANT NAME: NOTE: IF PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY TO KREGER/J, COLLINS

~*

W/

ACRS SAFETY BRANCH CHIEF:

LIC. ASST:

CYS CYS

~

HOLDING/ ENT TO LA i',o FOR ACTION/INFORMATION ENVIRO INTERNAL D IST RI BUTION NRC PDR 6 E 2 SCHROEDER/IPPOLITO NOVAK CHECK MES S lF E TEDE CO MACCA BAER SHAD VOLLMER BUNG KRE ER J OL NS EXTERNAL DISTRIBUTION CONTROL NUMBER LPDR TIC NSIC NRC FORM 195 I2.76)

t l~q

~x(

P

/g

P.O. BOX 013100 MIAMI,FLA. 33101 keZIilatop g os(et p]1 FLORIDA POWER 5 LIGHT COMPANY

,<<>> 'IS~ March 18, 1976

~V 4 /Ill PRN-LI-7 -54 ~

M~RP 6 l9 4.S. llllaSm SSGu4ggJQI CONNISSIOQ

~/

Mell Seel leSS Mr. Norman C;. os~ /+rector, Region II Office of Inspec~hid ~~and Enforcement U. S. Nuclear FRegulatory Commission 230 Peachtree Street, N. W., Suite 818 Atlanta, Georgia 30303

Dear Mr. Moseley:

REPORTABLE OCCURRENCE 335-76-3 ST. LUCIE UNIT 1 DATE OF OCCURRENCE: MARCH 8, 1976 DESIGN ERROR IN ENGINEERED SAFETY FEATURES ACTUATION SYSTEM The attached Licensee Event Report is being submitted in accordance with Technical Specification 6.6.l.a to provide prompt notification of the subject occurrence.

Very truly yours, A. D. Schmidt.

Vice President Power Resources'AS/cpc Attachment u'I cc: Jack R. Newman, Esquire Director, Office of Inspection and Enforcement (40)

Director, Office of Management Information and

,Program Control (3')

HELPING BUILD FLORIDA

p O.

t

,r LICENSEE EVENT REPORT CONTROL BLOCK: (P E PAINT ALL REQUIRED INFOAMATION3 6

UCENSEE UCENSE EVENT NAME UCENSE NUMBER TYPE TYPE F L S I S 1 0 0 0 0 0 0 0 0 4 1 1 1 1 ~0011

,7 89

~

14 15 25 26 30 31 32 REPORT. REPORT

. CATEGORY OOCKET NUMBER ~ EVENT OATE REPORT OATE

[001]coNT 0 5 0 0 3 5 0 3 0 8 7 6 0. 3 1 8 7 6 7 8 57 58 59 60 61 68 69 74 " 75 80 EVENT DESCRIPTION Durin oreogerational core loadi an e ineering review by the FPL General Office 7 8 9 80

[00~] E ineeri Staff indicated that upon loss of TIovrer all ESFAS signals would go to the 7 8 9 80 toD4] b ass mode vrhereas onl the CSAS and RAS signals should do so. FSAR Section 7.3.1.4 7 8 9 80

[OD~] re uires that si als other than CSAS and RAS go to the trip mode upon loss of povrer.

7 8 9 80

[oat) This is the first occurrence of this type. (335-76-3)..

7 8 9 '

pr'RME

~ 80 SYSTEM . CAUSE COMPONENT COMPONENT COOE COOE COMPONENT COOE SUPPUER MANUFACTURER VXKATKIN

[QD>]

7

~IB 8 9 10

~B 11 12 I N S T R U 17 A

43 '4 C 5 6 0 47 N

48 CAUSE DESCRIPTION tOOI This occurrence vras caused b an ESFAS circuitr desi error. All ESFAS si als were 7 8 9 80 tODS]

7 8 9 f ovrer Circuit modifications are bei 80 made .to compel vrith FSAR Section 7.3.1.4 and vrill be completed before entering 7 89 FACIUTY METHOO OF 80 STATUS  % POWER OTHER STATUS OISCOVERY OISCOVERY OESCRIPTION Q~g 8 9

~B ~oo o NA c 'ngineering revievr of ESF circuitry 80.

7 10 12 13 44 45 46 FORM OF ACTIVITY CONTENT RELEASEO OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE Q>g z ~z NA NA 7 8 9 10 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE OESCRIPTION

~~~ ~oo o z NA 7 89 11 12 13 60 PERS'ONNEL INJURIES OESCRIPTION Q4] 0 0 0 NA 7 8 9 11 12 80 PROBABLE CONSEQUENCES Q~g NA

.7 89 80 LOSS OR DAMAGE TO FACILITY TYPE OESCRIPTION z NA 7 89 10 80 PUBLICITY NA 7 89 ~ 80 ADDITIONAL FACTORS'~

g Cause Descrintion Cont.  : Technical S ecification mode 4.

7 89 80 7 89 80 M. A. S ChO man PHONE:

CFO 4~) ~ SOT

J' f% Ql gg

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