ML17289A785: Difference between revisions

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=Text=
=Text=
{{#Wiki_filter:ACCELERATED DISTRIBUTION DEMON TION SYSTEM REGULAYG.NFOIDIATION DZSTRZBUTIO
{{#Wiki_filter:ACCELERATED DISTRIBUTION DEMON                                           TION SYSTEM REGULAYG         .NFOIDIATION DZSTRZBUTIO   . YSTEM (RIDE)
.YSTEM (RIDE)ACC'~L"SSION NBR:9208140137 DOC.DATE: 92/07/30 NOTARIZED:
ACC'~L"SSION NBR:9208140137             DOC.DATE: 92/07/30   NOTARIZED: NO         DOCKET E'ACCIf:50-.,397 WPPSS Nuclear Project, Unit 2, Washington Public Powe                 05000397 AUTg.NAME               AUTHOR     AFFILIATION SWANK                   Washington Public Power Supply System RECIP.NAME               RECIPIENT AFFILIATION GOULD,C.               NRC No Detailed Affiliation Given
NO E'ACCIf:50-.,397 WPPSS Nuclear Project, Unit 2, Washington Public Powe AUTg.NAME AUTHOR AFFILIATION SWANK Washington Public Power Supply System RECIP.NAME RECIPIENT AFFILIATION GOULD,C.NRC-No Detailed Affiliation Given DOCKET 05000397


==SUBJECT:==
==SUBJECT:==
Part 21 Rept 23965:on 920730,determined that Limitorque motor-operators had upper housing cover cap screws set at 100%of mfg rated thrust which could fail in svc.Caused by installation of Grade 1 or 2 instead of Grade 5 or 7 screws.DISTRIBUTION CODE: IE19D COPIES RECEIVED:LTR (ENCL 0 SIZE: (TITLE: Part 21 Rept (50 DKT)NOTES: RECIPIENT ID CODE/NAME PD5 LA DEAN,W.INTERNAL: AEOD/DSP/ROAB NRR/DRIS/RVIB9D RES/DSIR/EIB RGN2 RGN4 SECY VANDERMEL EXTERNAL: INPO RECORD CTR NSIC SILVER,E COPIES LTTR E CL 1 1 RECIPIENT ID CODE/NAME PD5 PD NRR~OE GCB11 , Ol RG RGN3 RGN5 NRC PDR COPIES LTTR ENCL NOTE TO ALL"RIDS" RECIPIENTS:
Part 21 Rept 23965:on 920730,determined that Limitorque motor-operators had upper housing cover cap screws set at 100% of mfg rated thrust which could fail in svc.Caused by installation of Grade 1 or 2 instead of Grade 5 or 7 screws.
PLEASE HELP US TO REDUCE WASTE!CONTACT THE DOCUMENT CONTROL DESK, ROOM P 1-37 (EXT.20079)TO ELIMINATE YOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEEDI TOTAL NUMBER OF COPIES REQUIRED: LTTR 18 ENCL POWER~REACTOR EVENT-'UMBER:
DISTRIBUTION CODE: IE19D               COPIES RECEIVED:LTR     ( ENCL   0 SIZE: (
23965 FACILITY".
TITLE: Part       21 Rept (50 DKT)
WASHINGTON NUCLEAR UNIT:[2][][]RX TYPE:[2]GE-5 NRC NOTIFIED BY: SWANK HQ OPS OFFICER: CHAUNCEY, GOULD.'EGION:
NOTES:
5 STATE: WA NOTIFICATION DATE NOTIFICATION TIME: EVENT DATE: EVENT TIME: LAST UPDATE DATE: 07/30/92 12:33[ET]07/30/92 12:33[PDT]
RECIPIENT               COPIES            RECIPIENT          COPIES ID CODE/NAME              LTTR E CL      ID CODE/NAME       LTTR ENCL PD5 LA                       1          PD5 PD DEAN,W.                       1 INTERNAL: AEOD/DSP/ROAB                                 NRR~OE      GCB11 NRR/DRIS/RVIB9D                                         , Ol RES/DSIR/EIB                             RG RGN2                                     RGN3 RGN4                                     RGN5 SECY VANDERMEL EXTERNAL: INPO RECORD CTR                               NRC PDR NSIC SILVER,E NOTE TO ALL "RIDS" RECIPIENTS:
07/30/92 EMERGENCY.
PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM P 1-37 (EXT. 20079) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEEDI TOTAL NUMBER OF COPIES REQUIRED: LTTR                   18   ENCL
CLASS NOT"-APPLICABLE,.-
 
10 CFR SECTION: CDEF,"21.21(b)(2)
POWER~ REACTOR                                                     EVENT-'UMBER:   23965 FACILITY". WASHINGTON NUCLEAR                                 5  NOTIFICATION DATE 07/30/92 UNIT:         [2] [ ] [ ]                             STATE: WA  NOTIFICATION TIME: 12:33 [ET]
-DEFECTS/NONCOMPLIANCE NOTIFICATIONS UNIT SCRAM CODE RX CRIT INIT PWR INIT RX MODE CURR PWR CURR RX MODE N 100 POWER OPERATION 100 POWER OPERATION EVENT TEXT THE FOLLOWING INFORMATION IS TAKEN FROM THE TRANSMITTED PART 21 REPORT.'IT HAS BEEN DETERMINED THAT CERTAIN LIMITORQUE BRAND MOTOR-OPERATORS AT WNP-2 HAD UPPER HOUSING COVER CAP SCREWS WHICH, HAD THE MOTOR-OPERATORS BEEN SET AT 1004 OF THE MANUFACTURER RATED THRUST, COULD HAVE FAILED IN-SERVICE.
RX TYPE:   [2] GE-5                                             EVENT DATE:         07/30/92 GOULD.'EGION:           EVENT TIME:         12:33[PDT]
THIS CONDITION WAS CAUSED BY THE INSTALLATION OF GRADE 1 OR 2 CAP SCREWS INSTEAD OF GRADE 5 OR 8.ALTHOUGH GRADE 1 OR 2 CAP SCREWS WERE FOUND IN SEVERAL MODELS OF LIMITORQUE MOTOR-OPERATORS, FAILURE OF THE CAP SCREWS IN-SERVICE DUE TO THE RATED THRUST LOADS WOULD ONLY BE POSTULATED FOR SMB-000 MODEL.'~pefppf>
NRC NOTIFIED BY: SWANK                                            LAST UPDATE DATE:  07/30/92 HQ OPS OFFICER:              CHAUNCEY, NOTIFICATIONS EMERGENCY. CLASS             NOT"-APPLICABLE,.-
p5pppg9'7 9207~p>DR PDOC~PDR)g}}
10 CFR SECTION:
CDEF,"21.21(b)(2)                 -
DEFECTS/NONCOMPLIANCE UNIT     SCRAM CODE RX           CRIT INIT   PWR   INIT RX MODE   CURR PWR   CURR RX MODE N                             100     POWER OPERATION     100     POWER OPERATION EVENT TEXT THE FOLLOWING INFORMATION               IS TAKEN FROM THE TRANSMITTED PART 21 REPORT.
  'IT   HAS BEEN DETERMINED THAT CERTAIN LIMITORQUE BRAND MOTOR-OPERATORS AT WNP-2 HAD UPPER HOUSING COVER CAP SCREWS WHICH, HAD THE MOTOR-OPERATORS BEEN SET AT 1004 OF THE MANUFACTURER RATED THRUST, COULD HAVE FAILED IN-SERVICE. THIS CONDITION WAS CAUSED BY THE INSTALLATION OF GRADE 1 OR 2 CAP SCREWS INSTEAD OF GRADE 5 OR 8. ALTHOUGH GRADE 1 OR 2 CAP SCREWS WERE FOUND IN SEVERAL MODELS OF LIMITORQUE MOTOR-OPERATORS, FAILURE OF THE CAP SCREWS IN-SERVICE DUE TO THE RATED THRUST LOADS WOULD ONLY BE POSTULATED FOR SMB-000 MODEL.'~pefppf>
9207 ~p p5pppg9'7 PDOC~               PDR
            >DR
      )
g}}

Latest revision as of 12:57, 29 October 2019

Part 21 Rept 23965:on 920730,determined That Limitorque motor-operators Had Upper Housing Cover Cap Screws Set at 100% of Mfg Rated Thrust Which Could Fail in Svc.Caused by Installation of Grade 1 or 2 Instead of Grade 5 or 7 Screws
ML17289A785
Person / Time
Site: Columbia Energy Northwest icon.png
Issue date: 07/30/1992
From: Swank
WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To: Gould C
NRC
References
REF-PT21-92 23965, NUDOCS 9208140137
Download: ML17289A785 (2)
v • d • e


Text

ACCELERATED DISTRIBUTION DEMON TION SYSTEM REGULAYG .NFOIDIATION DZSTRZBUTIO . YSTEM (RIDE)

ACC'~L"SSION NBR:9208140137 DOC.DATE: 92/07/30 NOTARIZED: NO DOCKET E'ACCIf:50-.,397 WPPSS Nuclear Project, Unit 2, Washington Public Powe 05000397 AUTg.NAME AUTHOR AFFILIATION SWANK Washington Public Power Supply System RECIP.NAME RECIPIENT AFFILIATION GOULD,C. NRC No Detailed Affiliation Given

SUBJECT:

Part 21 Rept 23965:on 920730,determined that Limitorque motor-operators had upper housing cover cap screws set at 100% of mfg rated thrust which could fail in svc.Caused by installation of Grade 1 or 2 instead of Grade 5 or 7 screws.

DISTRIBUTION CODE: IE19D COPIES RECEIVED:LTR ( ENCL 0 SIZE: (

TITLE: Part 21 Rept (50 DKT)

NOTES:

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR E CL ID CODE/NAME LTTR ENCL PD5 LA 1 PD5 PD DEAN,W. 1 INTERNAL: AEOD/DSP/ROAB NRR~OE GCB11 NRR/DRIS/RVIB9D , Ol RES/DSIR/EIB RG RGN2 RGN3 RGN4 RGN5 SECY VANDERMEL EXTERNAL: INPO RECORD CTR NRC PDR NSIC SILVER,E NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM P 1-37 (EXT. 20079) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEEDI TOTAL NUMBER OF COPIES REQUIRED: LTTR 18 ENCL

POWER~ REACTOR EVENT-'UMBER: 23965 FACILITY". WASHINGTON NUCLEAR 5 NOTIFICATION DATE 07/30/92 UNIT: [2] [ ] [ ] STATE: WA NOTIFICATION TIME: 12:33 [ET]

RX TYPE: [2] GE-5 EVENT DATE: 07/30/92 GOULD.'EGION: EVENT TIME: 12:33[PDT]

NRC NOTIFIED BY: SWANK LAST UPDATE DATE: 07/30/92 HQ OPS OFFICER: CHAUNCEY, NOTIFICATIONS EMERGENCY. CLASS NOT"-APPLICABLE,.-

10 CFR SECTION:

CDEF,"21.21(b)(2) -

DEFECTS/NONCOMPLIANCE UNIT SCRAM CODE RX CRIT INIT PWR INIT RX MODE CURR PWR CURR RX MODE N 100 POWER OPERATION 100 POWER OPERATION EVENT TEXT THE FOLLOWING INFORMATION IS TAKEN FROM THE TRANSMITTED PART 21 REPORT.

'IT HAS BEEN DETERMINED THAT CERTAIN LIMITORQUE BRAND MOTOR-OPERATORS AT WNP-2 HAD UPPER HOUSING COVER CAP SCREWS WHICH, HAD THE MOTOR-OPERATORS BEEN SET AT 1004 OF THE MANUFACTURER RATED THRUST, COULD HAVE FAILED IN-SERVICE. THIS CONDITION WAS CAUSED BY THE INSTALLATION OF GRADE 1 OR 2 CAP SCREWS INSTEAD OF GRADE 5 OR 8. ALTHOUGH GRADE 1 OR 2 CAP SCREWS WERE FOUND IN SEVERAL MODELS OF LIMITORQUE MOTOR-OPERATORS, FAILURE OF THE CAP SCREWS IN-SERVICE DUE TO THE RATED THRUST LOADS WOULD ONLY BE POSTULATED FOR SMB-000 MODEL.'~pefppf>

9207 ~p p5pppg9'7 PDOC~ PDR

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