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| issue date = 08/06/1976
| issue date = 08/06/1976
| title = LER 1976-034-00 for St. Lucie Unit 1, in Order to Compensate for Errors Found in NSSS Vendor'S Strikin II Computer Code, Several Instrumentation and Control Setpoints Were Adjusted
| title = LER 1976-034-00 for St. Lucie Unit 1, in Order to Compensate for Errors Found in NSSS Vendor'S Strikin II Computer Code, Several Instrumentation and Control Setpoints Were Adjusted
| 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/IE, NRC/RGN-II
| addressee affiliation = NRC/IE, NRC/RGN-II
| docket = 05000335, 05000389
| docket = 05000335, 05000389
Line 17: Line 17:


=Text=
=Text=
{{#Wiki_filter:NRC Pv>1M 106 g.voI U.S.NUCLEAR REGULATORY C SION DOCKET NUMBER 50-335 NRC DISTRIBUTION FoR PART 60 DOCKET MATERIAL FILE NUMBER INCIDIWT RI"PORT TO: Mr.Norman C.Moseley FROM: Florida'Power
{{#Wiki_filter:NRC   Pv>1M 106                                         U.S. NUCLEAR REGULATORY C           SION   DOCKET NUMBER g.voI                                                                                                      50-335 FILE NUMBER NRC DISTRIBUTION FoR PART 60 DOCKET MATERIAL                                             INCIDIWT RI"PORT TO:                                               FROM:                                               DATE OF DOCUMENT Florida'Power     & Light     Company                 8/6/76 Mr. Norman C. Moseley                      Miami, Florida                                   DATE RECEIVED A. D S'chmidt                                         9/l/76 LFTTER                 QNOTORIZED              PROP                    INPUT FORM                  NUMBER OF COPIES RECEIVED jgoRIDINAL C3coPY g UN C LASS IF I E D I
&Light Company Miami, Florida A.D S'chmidt DATE OF DOCUMENT 8/6/76 DATE RECEIVED 9/l/76 LFTTER jgoRIDINAL C3coPY DESCRIPTION QNOTORIZED g UN C LASS IF I E D PROP INPUT FORM~8~g~j~I ENCLOSURE NUMBER OF COPIES RECEIVED.One signed~I l~myv Ltr.trans the following:
                                                                                        ~ 8 ~g ~ j ~
PLANT mIE't.Lucie Nl (l-P)Licensee Event Report (RO 50-335-76-34) on 7/6/76 concerning corrective measures taken to compensate for errors found in the NSSS vendor's STRIKIN II computer code.ACKNOWLEDGED
One signed
('-').DONOV H,ZMOVZ NOTE: IF PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY TO KREGER/J.COLLINS BRANCH CHIEF: W Cr8 1OR ACTION LIC..ASST.:
                                                                                                                          ~     I l~myv DESCRIPTION                                                      ENCLOSURE Ltr. trans the following:                                     Licensee Event Report (RO 50-335-76-34) on 7/6/76 concerning corrective measures taken to compensate for errors found in the NSSS vendor's STRIKIN             II computer code.
W CYS ACRS CYS HOLDING S Ziemann Di s TO LA FOR ACTION/INFORMATION 9 2 76 RJL INTERNAL D IST R I BUTION NRC PDR IREE 2 MIPC SCHROEDER IPPOLITO HOUSTON NOVAK CHECK GRIMES CASE~~TEDESCO MACCARY EISENHUT SHAO VOLIZER BUNCH GER J.COLLINS LPDR: Ft.Pierce Fla.TIC: EXTERNAL DISTRIBUTION CONTROL NUMBER~g pig%>11 Irrwa 0 I F~4 5 ffpJp li i)v g/(llig pl~E W1 cas P.O.SOX 0I3I00, MIAMI, FLORIDA 33IO'I~gagulaelIX@~'"'-~gilllg~=-"O'a FLORIDA POWER 5 LIGHT COMPANY August 6, 1976 PRN-LI-76-199 tt Mr.Norman C.Moseley, Director, Region XI Office of Inspection and Enforcement U.S.Nuclear Regulatory Commission 230 Peachtree Street, N.W., Suite 818 Atlanta, Georgia 30303
ACKNOWLEDGED (l-P)      ('-') .DONOV H,ZMOVZ PLANT                                                        NOTE:     IF PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY TO KREGER/J .COLLINS mIE't.
Lucie Nl FOR ACTION/INFORMATION            9 2 76                      RJL BRANCH   CHIEF:                     Ziemann W   Cr8 1OR ACTION LIC..ASST.:                           Di s W       CYS ACRS     CYS     HOLDING S         TO   LA INTERNAL D IST R I BUTION NRC PDR IREE 2 MIPC SCHROEDER IPPOLITO HOUSTON NOVAK CHECK GRIMES CASE                                                                                                                     ~     ~
TEDESCO MACCARY EISENHUT SHAO VOLIZER BUNCH GER J. COLLINS EXTERNAL DISTRIBUTION                                                CONTROL NUMBER LPDR:   Ft. Pierce     Fla.                                                                                           ~
g pig %>11 TIC:                                                                                                                      Irrwa


==Dear Mr.Moseley:==
0 I
~If,"P g,S,~+~~INI08 C~I~IIaII REPORTABLE OCCURRENCE 335-76-34 ST.LUCIE UNIT 1 DATE OF OCCURRENCE:
F
JULY 6, 1976 LOCAL POWER DENSITY ALARM SETPOINT The attached Licensee Event Report is being submitted in accordance with Technical Specification 6.9 to provide 30-day notification of the subject.occurrence.
                                    ~ 4 5 ffpJp li i) v g/( llig pl
Very truly yours, D.Schmidt Vice President Power Resources MAS/bfp Attachment cc: Jack R.Newman, Esquire Director, Office of Inspection and Enforcement (30)Director, Office of Management Information and Program Control (3)HELPING BUILD FLORIDA
~ E W1


CONTROL BLOCK: LICENSEE EVENT REPORT (PLEASE PRINT ALL RECIUIRED INFORMATION)
P.O. SOX 0I3I00, MIAMI, FLORIDA 33IO'I cas                        ~gagulaelIX@~'"
LK4ENSEE NAME[OD1]8 L S L S 1 0 7 89 14 15 LICENSE NUMBER 0-0 0 0 0 0-0 0 25 UCENSE TYPE EVENT TYPE 4 1 1 1 1~03 26 30 31 32 , CATEGORY TYPE SOURCE REPORT REPORT~DOCKET NUMBER EVENT OATE REPORT OATE QpgooN7~~L~L p 5 p p 3 3 5 0 7 0 6 7 6 0 8 0 6 7 6 7 8 57 58 59 60 61 68 69 74 75 80 EVENT DESCRIPTION
                                                                    ~          ~gilllg
[pp~]In order to compensate for errors found in the NSSS Vendor's STRIKIN II 7 8 9 80[QQ3]computer code (see LER 335-7 6-3 1), several instrumentation and control 7 8 9~80 top~]setpoints were adjusted.The adjustment factor for the core local 7 8 9 80[0D~]ower densit alarm was 1.24 however on Jul 6 a nonconservative 7 8 9 80 gg value of 1.1 was set into the instrumentation.
                                                                                =-"O'a FLORIDA POWER  5 LIGHT COMPANY August 6, 1976 PRN-LI-76-199 tt
The error was found 80 7 8 9 PRME SYSTEM CAUSE COMPONENT COMPONENT COBE COBE COMPONENT COOE SUPPUER MANUFACTURER
                                                                    ~If,"P Mr. Norman C. Moseley, Director, Region XI Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission 230 Peachtree Street, N.W., Suite    818 Atlanta, Georgia 30303                                      g,S, ~+~~INI08 C~I ~IIaII
~I~AANNUNCNF120 7 8 9 10 11 12 17" 43 44 47 CAUSE DESCRIPTION
 
~0 8 A nonconservative adjustment factor was set into N 48 the Incore Detector 80 A memorandum which lists the ro er 7 8 9[oO~]S stem because of ersonnel error.7 8 9 80 ,Q~O set oin a d r ss'm OTHER STATUS N/A AMOUNT OF ACTIVITY N/A PROBABLE CONSEQUENCES
==Dear Mr. Moseley:==
[<is]7 8 9 LOSS OR DAMAGE TO FACILITY TYPE OESCRIPTION HE LzJ 7 89 10 PUBLICITY 7 89 FACRJTY STATUS 5 POWER~B~08 0 7 8 9 10 12 13 FORM OF ACTIViTY COATENT RELEASEO OF RELEASE Q~g z z 7 8 9 10 11 PERSONNEL EXPOSURES NUMBER TYPE OESCRIPTION
 
~z~00 8 7 8 9 11 12 13 PERSONNEL INJURIES EH.LoL~7 89 11 12 METHOO OF OISCOVERY C 44 45 46 44 45 N/A N A N/A DISCOVERY OESCRIPTION N/A LOCATION OF RELEASE N/A 80 80 80 80 80 80 80 7 89 ADDITIONAL FACTORS'ee a e two for continuation of Event Descri tion and Cause~80 7 8 9 Description.
REPORTABLE OCCURRENCE 335-76-34 ST. LUCIE UNIT 1 DATE OF OCCURRENCE:  JULY 6, 1976 LOCAL POWER DENSITY ALARM SETPOINT The  attached Licensee Event Report is being submitted in accordance with Technical Specification 6.9 to provide 30-day notification of the subject. occurrence.
~99 7 89 NAME: M.A.Schoppman 305/552-3779 PHONE'0 GPO Spl GOT REPORTABLE OCCURRENCE 335-76-34 LICENSEE EVENT REPORT Pa e Two Event Descri tion (Continued):
Very  truly  yours, D. Schmidt Vice President Power Resources MAS/bfp Attachment cc:   Jack R. Newman, Esquire Director, Office of Inspection and Enforcement              (30)
approximately 8 hours later during a review of the setpoints, ,and the setpoint for the core local power density alarm was corrected.
Director, Office of Management Information and Program Control (3)
Review of the Digital Data Processor printout for this 8 hour period showed that there was no time during which operation was in noncompliance with the requirements of Technical Specification 3.2.1 for a revised linear heat rate limit of 12.7 kw/ft.This was the first occurrence of this type at St.Lucie Unit, l.(335-76-34)
HELPING BUILD FLORIDA
Cause Description (Continued):
 
LICENSEE EVENT REPORT CONTROL BLOCK:                                                                          (PLEASE PRINT ALL RECIUIRED INFORMATION)
LK4ENSEE                                                                                         UCENSE                EVENT NAME                                             LICENSE NUMBER                                TYPE                TYPE
[OD1]       8     L   S             L   S     1         0 0   0       0   0 0     0   0       0       4   1   1 1       1     ~03 89
                        ~
7                                              14      15                                              25    26                   30   31     32 REPORT      REPORT
                    , CATEGORY                 TYPE     SOURCE         ~
DOCKET NUMBER                         EVENT OATE                     REPORT OATE QpgooN7                                   ~L         ~L         p 5     p         p 3     3   5       0   7   0   6 7     6       0   8   0     6   7   6 7     8           57     58               59         60     61                                 68   69                       74   75                       80 EVENT DESCRIPTION
[pp~]         In order to compensate for errors found in the NSSS Vendor's STRIKIN II 7     8 9                                                                                                                                                       80
[QQ3]
computer code ( see LER 335-7 6-3 1 ), several instrumentation and control 7     8 9                                         ~
80 top~]         setpoints were adjusted. The adjustment factor for the core local 7 8 9                                                                                                                                                             80
[0D~]           ower densit alarm was 1.24 however on Jul 6 a nonconservative 7     8 9                                                                                                                                                         80 gg           value of 1.1 was set into the instrumentation. The error was found 7 8       9                                                                         PRME                                                                         80 7
              ~I~AANNUNCNF120 8 9 10 SYSTEM COBE CAUSE COBE 11           12 COMPONENT COOE 17 COMPONENT SUPPUER 43         44 COMPONENT MANUFACTURER 47 N
48 CAUSE DESCRIPTION
    ~0   8         A   nonconservative adjustment factor was set into the Incore Detector 7     8 9                                                                                                                                                         80
[oO~]         S stem because                           of ersonnel error. A memorandum which lists the ro er 7     8 9                                                                                                                                                         80
  ,Q~O             set oin a d r ss                                               'm 7     89                                                                                                                                                         80 FACRJTY                                                                     METHOO OF STATUS                     5 POWER                 OTHER STATUS          OISCOVERY                      DISCOVERY OESCRIPTION
                  ~B                     ~08           0                 N/A                  C                                N/A 7     8       9                     10               12 13                         44      45      46                                                        80 FORM OF ACTIViTY           COATENT RELEASEO         OF RELEASE                    AMOUNT OF ACTIVITY                                          LOCATION OF RELEASE Q~g               z                     z                             N/A                                                    N/A 7     8       9                       10     11                                     44      45                                                              80 PERSONNEL EXPOSURES NUMBER                   TYPE       OESCRIPTION
    ~z ~00                                   8                                             N/A 7     8 9               11             12     13                                                                                                               80 PERSONNEL INJURIES EH.
7    89 LoL~         11           12 N A 80 PROBABLE CONSEQUENCES
[<is]                                                                                    N/A 7    8 9                                                                                                                                                        80 LOSS OR DAMAGE TO FACILITY TYPE      OESCRIPTION 7
HE89LzJ            10                                                                                                                                            80 PUBLICITY 7     89                                                                                                                                                       ~ 80 ADDITIONAL       FACTORS'ee 7
a e two                   for continuation of Event Descri tion                                 and Cause 8 9
~99 Description.
7       89 NAME:
M.A.Schoppman                                           PHONE'0  305/552-3779 GPO   Spl GOT
 
REPORTABLE OCCURRENCE 335-76-34 LICENSEE EVENT REPORT Pa e Two Event Descri tion (Continued):
approximately 8 hours later during a review of the setpoints,
,and the setpoint for the core local power density alarm was corrected. Review of the Digital Data Processor printout for this 8 hour period showed that there was no time during which operation was in noncompliance with the requirements of Technical Specification 3.2.1 for a revised linear heat rate limit of 12.7 kw/ft. This was the first occurrence of this type at St. Lucie Unit, l.   (335-76-34)
Cause Description (Continued):
distributed for review by appropriate personnel.}}
distributed for review by appropriate personnel.}}

Latest revision as of 03:26, 3 February 2020

LER 1976-034-00 for St. Lucie Unit 1, in Order to Compensate for Errors Found in NSSS Vendor'S Strikin II Computer Code, Several Instrumentation and Control Setpoints Were Adjusted
ML18113A320
Person / Time
Site: Saint Lucie  NextEra Energy icon.png
Issue date: 08/06/1976
From: Schmidt A
Florida Power & Light Co
To: Moseley N
NRC/IE, NRC/RGN-II
References
PRN-LI-76-199 LER 1976-034-00
Download: ML18113A320 (7)
v • d • e


Text

NRC Pv>1M 106 U.S. NUCLEAR REGULATORY C SION DOCKET NUMBER g.voI 50-335 FILE NUMBER NRC DISTRIBUTION FoR PART 60 DOCKET MATERIAL INCIDIWT RI"PORT TO: FROM: DATE OF DOCUMENT Florida'Power & Light Company 8/6/76 Mr. Norman C. Moseley Miami, Florida DATE RECEIVED A. D S'chmidt 9/l/76 LFTTER QNOTORIZED PROP INPUT FORM NUMBER OF COPIES RECEIVED jgoRIDINAL C3coPY g UN C LASS IF I E D I

~ 8 ~g ~ j ~

One signed

~ I l~myv DESCRIPTION ENCLOSURE Ltr. trans the following: Licensee Event Report (RO 50-335-76-34) on 7/6/76 concerning corrective measures taken to compensate for errors found in the NSSS vendor's STRIKIN II computer code.

ACKNOWLEDGED (l-P) ('-') .DONOV H,ZMOVZ PLANT NOTE: IF PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY TO KREGER/J .COLLINS mIE't.

Lucie Nl FOR ACTION/INFORMATION 9 2 76 RJL BRANCH CHIEF: Ziemann W Cr8 1OR ACTION LIC..ASST.: Di s W CYS ACRS CYS HOLDING S TO LA INTERNAL D IST R I BUTION NRC PDR IREE 2 MIPC SCHROEDER IPPOLITO HOUSTON NOVAK CHECK GRIMES CASE ~ ~

TEDESCO MACCARY EISENHUT SHAO VOLIZER BUNCH GER J. COLLINS EXTERNAL DISTRIBUTION CONTROL NUMBER LPDR: Ft. Pierce Fla. ~

g pig %>11 TIC: Irrwa

0 I

F

~ 4 5 ffpJp li i) v g/( llig pl

~ E W1

P.O. SOX 0I3I00, MIAMI, FLORIDA 33IO'I cas ~gagulaelIX@~'"

~ ~gilllg

=-"O'a FLORIDA POWER 5 LIGHT COMPANY August 6, 1976 PRN-LI-76-199 tt

~If,"P Mr. Norman C. Moseley, Director, Region XI Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission 230 Peachtree Street, N.W., Suite 818 Atlanta, Georgia 30303 g,S, ~+~~INI08 C~I ~IIaII

Dear Mr. Moseley:

REPORTABLE OCCURRENCE 335-76-34 ST. LUCIE UNIT 1 DATE OF OCCURRENCE: JULY 6, 1976 LOCAL POWER DENSITY ALARM SETPOINT 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/bfp Attachment cc: Jack R. Newman, Esquire Director, Office of Inspection and Enforcement (30)

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

HELPING BUILD FLORIDA

LICENSEE EVENT REPORT CONTROL BLOCK: (PLEASE PRINT ALL RECIUIRED INFORMATION)

LK4ENSEE UCENSE EVENT NAME LICENSE NUMBER TYPE TYPE

[OD1] 8 L S L S 1 0 0 0 0 0 0 0 0 0 4 1 1 1 1 ~03 89

~

7 14 15 25 26 30 31 32 REPORT REPORT

, CATEGORY TYPE SOURCE ~

DOCKET NUMBER EVENT OATE REPORT OATE QpgooN7 ~L ~L p 5 p p 3 3 5 0 7 0 6 7 6 0 8 0 6 7 6 7 8 57 58 59 60 61 68 69 74 75 80 EVENT DESCRIPTION

[pp~] In order to compensate for errors found in the NSSS Vendor's STRIKIN II 7 8 9 80

[QQ3]

computer code ( see LER 335-7 6-3 1 ), several instrumentation and control 7 8 9 ~

80 top~] setpoints were adjusted. The adjustment factor for the core local 7 8 9 80

[0D~] ower densit alarm was 1.24 however on Jul 6 a nonconservative 7 8 9 80 gg value of 1.1 was set into the instrumentation. The error was found 7 8 9 PRME 80 7

~I~AANNUNCNF120 8 9 10 SYSTEM COBE CAUSE COBE 11 12 COMPONENT COOE 17 COMPONENT SUPPUER 43 44 COMPONENT MANUFACTURER 47 N

48 CAUSE DESCRIPTION

~0 8 A nonconservative adjustment factor was set into the Incore Detector 7 8 9 80

[oO~] S stem because of ersonnel error. A memorandum which lists the ro er 7 8 9 80

,Q~O set oin a d r ss 'm 7 89 80 FACRJTY METHOO OF STATUS 5 POWER OTHER STATUS OISCOVERY DISCOVERY OESCRIPTION

~B ~08 0 N/A C N/A 7 8 9 10 12 13 44 45 46 80 FORM OF ACTIViTY COATENT RELEASEO OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE Q~g z z N/A N/A 7 8 9 10 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE OESCRIPTION

~z ~00 8 N/A 7 8 9 11 12 13 80 PERSONNEL INJURIES EH.

7 89 LoL~ 11 12 N A 80 PROBABLE CONSEQUENCES

[<is] N/A 7 8 9 80 LOSS OR DAMAGE TO FACILITY TYPE OESCRIPTION 7

HE89LzJ 10 80 PUBLICITY 7 89 ~ 80 ADDITIONAL FACTORS'ee 7

a e two for continuation of Event Descri tion and Cause 8 9

~99 Description.

7 89 NAME:

M.A.Schoppman PHONE'0 305/552-3779 GPO Spl GOT

REPORTABLE OCCURRENCE 335-76-34 LICENSEE EVENT REPORT Pa e Two Event Descri tion (Continued):

approximately 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> later during a review of the setpoints,

,and the setpoint for the core local power density alarm was corrected. Review of the Digital Data Processor printout for this 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> period showed that there was no time during which operation was in noncompliance with the requirements of Technical Specification 3.2.1 for a revised linear heat rate limit of 12.7 kw/ft. This was the first occurrence of this type at St. Lucie Unit, l. (335-76-34)

Cause Description (Continued):

distributed for review by appropriate personnel.

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