Site Problem Rept 161:during Ultrasonic Insp of 1A Flywheel, Insp Cover Bolt Was Trapped Between Flywheel & Shroud Covering Flywheel,Preventing Shaft Rotation.Bolt Removed & Flywheel Inspected| ML20136C042 |
| Person / Time |
|---|
| Site: |
Three Mile Island  |
|---|
| Issue date: |
12/21/1977 |
|---|
| From: |
Culberson D, Pletke L, Rise D
BABCOCK & WILCOX CO. |
|---|
| To: |
|
|---|
| References |
|---|
| TASK-TF, TASK-TMR 161, PROB-771221, NUDOCS 7909140284 |
| Download: ML20136C042 (2) |
|
|
|---|
Category:PROBLEM/MAINTENANCE REPORT
MONTHYEARML20136C2051979-03-23023 March 1979
Summary Work List Re Various Instruments & Sys. Radiological Ref 130
ML20125D8921979-02-20020 February 1979
on 780329,reactor Tripped on Pump Power Trip,Followed by Rapid Depressurization of Rcs.Caused by De Energizing of Vital Power Supply 2-4.Review Underway Re Isolation, Surveillance & Operating Procedures
ML20136C0651979-02-20020 February 1979
Site Problem Rept 198 Re Inability to Adjust Delta Flux Difference Amplifiers to Obtain K Factors Greater than Five Per Results of Tp 800/18,power Imbalance Detector Correlation Test.Old & New Wiring Diagrams Encl
ML20136C0871978-10-15015 October 1978
Site Problem Rept 191 Re a & B Makeup Pump Gear Lube Oil Sys.Bearing Pressure Not Obtainable Due to Installed Pressure Gauge Located Downstream of Spray Throttle Valve. Addl Gauges Installed Per Attached Diagram
ML20136C0381978-07-12012 July 1978
Site Problem Rept 174 Re Zero Ground Condition Discovered in 2A Reactor Coolant Pump Motor Between Upper & Lower Bearing Housings & Motor Casing.Caused by Positioning of Burns & Roe Oil Spill Retainer Housing
ML20136C6991978-05-16016 May 1978
Work Request Approval for Calibr & Installation of Probes for Reactor Coolant Pump
ML20136C6671978-05-10010 May 1978
Application to Remove Auxiliary Bldg Sump Pump WDL-T-5 from Svc for Replacement of Ruptured Disc
ML20125B4531978-04-28028 April 1978
Startup Problem Rept 2690:on 780222,WDL-C-1A/B Tube Side Did Not Have Proper Overpressure Protection.Burns & Roe Proposed Solution on 780405.Action Completed Satisfactorily on 780428
ML19212A4761978-03-16016 March 1978
Chronological Summary of safety-related Maint & Operating Experience for 12-month Period Ending 771231
ML20125B4581978-03-15015 March 1978
Startup Problem Rept 5314:on 780314,radwaste Gas Release Rate of 90 Scfm Could Not Be Obtained.On 780317,flow Rate of 65 Scfm Determined Acceptable by Burns & Roe
ML19252A2921978-01-20020 January 1978
Responds to NRC 780105 Questionnaire Re Standby Diesel Generator Unit Reliability
ML20136C0611978-01-0606 January 1978
Site Problem Rept 152,Revision 1,re Failure of Makeup Pump Gear Oil Cooler to Meet Spec CS3-113 Paragraph 3.5 of Tubular Exchanger Manufacturers Association Stds.Spec Incomplete & Will Be Revised.Supporting Matl Encl
ML20136C0421977-12-21021 December 1977
Site Problem Rept 161:during Ultrasonic Insp of 1A Flywheel, Insp Cover Bolt Was Trapped Between Flywheel & Shroud Covering Flywheel,Preventing Shaft Rotation.Bolt Removed & Flywheel Inspected
ML20136C0461977-12-13013 December 1977
Site Problem Rept 157 Re Bump on Stuffing Box Seating Surface Formed by Depression of Lower Gasket Seating Surface During Disassembly of 1A Reactor Coolant Pump.Caused by Pressure Used to Break 1B & 2B Pumps Free
ML20125B4781977-11-17017 November 1977
Startup Problem Rept Re Condensate
ML20136C0481977-11-0808 November 1977
Site Problem Rept 149 Re Difference in Actual Range Between Hot & Cold Marks in Constant Load Supports of Reactor Coolant Pumps & Specified Range.Startup Problem Repts 2299 & 2436 Re Reactor Coolant Sys Encl
ML20136C6771977-10-26026 October 1977
Surveillance Rept of RCS Valve RC-RV-2 from Mechanical Maint Dept.Work Requests Encl
ML20136C0961977-09-29029 September 1977
Site Problem Rept 125,Revision 1,re Failure of Matl in Makeup Pump Stretched Studs to Meet Requirements of Certificate of Conformance.Ke Moore 790712 Memo to RP Williamson Re Necked Makeup Pump Case Stud Encl
ML20136C0921977-09-0101 September 1977
Site Problem Rept 135 Re Malfunctioning of Tektro Pressure Control Valve for High Pressure Lube Oil Sys on Reactor Coolant Pump Motor 1A.Valve Disassembled & Cleaned,But Will Not Hold Pressure & Will Not Relieve
ML20136C7331977-08-30030 August 1977
TMI Startup Problem Rept on 770830:valve RC-V2 Cracked Off Seat & RC-R2 Started Relieving Pressure.Solenoid Plunger Realigned & New Springs Installed.Work Requests & Notes Encl
ML20136C0781977-08-11011 August 1977
Site Problem Rept 111 Re Corrections to Computer Point Listing.Bailey 855 Startup Problem Rept 2084 Encl
ML20136C0841977-06-24024 June 1977
Site Problem Rept 109 Re Reactor Protection Sys & Resistance Temp Detector Re Test Data.Resistance Temp Detector Retested & Reworked W/Design Improvement Retested.Results Encl
ML20136C0571977-06-20020 June 1977
Site Problem Rept 127 Re Standpipe Gasket Interference W/ Shaft in 2B Reactor Coolant Pump Motor.Pan Was Dropped,New Gaskets & New O-ring Installed.Motor Subsequently Was Successfully no-load Run.No Further Action Required
ML20136C0351977-06-20020 June 1977
Site Problem Rept 127 Re Standpipe Gasket Interfering w/2B Reactor Coolant Pump Shaft on 770516.Pan Dropped & New Gaskets & New O-ring Installed.Motor Subsequently Successful During no-load Run.No Further Action Required
ML20136C0671977-02-28028 February 1977
Site Problem Rept 113 Re Reactor Protection Sys Inputs. Startup Problem Rept 2089 & Response Encl
ML20136C0751977-02-0707 February 1977
Site Problem Rept 112 Re Safety Features Actuation Sys & Reactor Protection Sys Errors.Startup Problem Repts 2087 & 2088 Encl
ML19249F1751975-08-13013 August 1975
Energy Absorption in Size 24 Figure 607 Valve Seat & Disk.
ML19276H2131973-09-0606 September 1973
Rept on Containment Bldg Vertical Tendon Upper Bearing Plates.
ML19276H2111972-06-30030 June 1972
Containment Bldg Ring Girder Const & Repair,Addendum 2.
ML19276H1091969-05-0909 May 1969
Summary of Factory Tests,Reactor Bldg Fan Assemblies, Prepared by American Air Filter Co
1979-03-23
[Table view]
Category:TECHNICAL SPECIFICATIONS & TEST REPORTS
MONTHYEARML20211M6651999-09-0101 September 1999
Errata Page 4-45,reflecting Proposed Changes Requested in
ML20211D1551999-08-20020 August 1999
Proposed Tech Specs Pages,Revising Degraded Voltage Relay as-left Setpoint Tolerances
ML20210S7691999-08-12012 August 1999
Rev 10 to 6610-PLN-4200.02, TMI Emergency Dose Calculation Manual
ML20210J1261999-07-29029 July 1999
Proposed Tech Specs Revising ESF Sys Leakage Limits in post-accident Recirculation Surveillance TSs
ML20195E6201999-06-0404 June 1999
Proposed Tech Specs,Modifying Conditions Which Allow Reduction in Number of Means for Maintaining Decay Heat Removal Capability During Shutdown Conditions
ML20206R1171999-05-13013 May 1999
Proposed Tech Specs Section 3.1.1,incorporating Administrative Updating & Changing Bases Statement
ML20206R6531999-05-13013 May 1999
Rev 39 to TMI Modified Amended Physical Security Plan
ML20205H0781999-04-0101 April 1999
Proposed Tech Specs Adding LCO Action Statements,Making SRs More Consistent with NUREG-1430,correcting Conflicts or Inconsistencies Caused by Earlier TS Revs & Revising SFP Sampling
ML20204B5291999-03-12012 March 1999
Rev 9 to 6610-PLN-4200.02, TMI Emergency Dose Calculation Manual (Edcm)
ML20203B0511999-02-0202 February 1999
Proposed Tech Specs Expanding Scope of Systems & Test Requirements for post-accident RB Sump Recirculation ESF Systems & Increasing Max Allowable Leakage of TS 4.5.4 for Applicable Portions of ESF Systems Outside of Containment
ML20196G4861998-12-0303 December 1998
Non-proprietary Proposed Tech Specs,Consenting to Transfer & Authorization for Amergen to Possess,Use & Operate TMI-1 Under Essentially Same Conditions & Authorizations Included in Existing License
ML20196H5361998-12-0303 December 1998
Proposed Tech Specs Reflecting Decrease in RCS Flow Resulting from Revised Analysis to Allow Operation of Plant with 20% Average Level of SG Tubes Plugged Per SG
ML20196F8661998-11-25025 November 1998
Proposed Tech Specs Revised Pages for TS Change 277 Changing Surveillances Specs for OTSG ISI for TMI Cycle 13 RFO Exams Which Would Be Applicable for One Cycle of Operation Only. with Certificate of Svc
ML20154P8661998-10-19019 October 1998
Proposed Tech Specs,Providing Allowable RCS Specific Activity Limit Based on OTSG Insp Results Performed Each Refueling Outage
ML20154Q6271998-10-19019 October 1998
Proposed Tech Specs Adding Operability & SRs for Remote Shutdown Sys Similar to Requirements in NUREG-1430, Std Tech Specs - B&W Plants, Section 3.3.18
ML20154D5491998-10-0101 October 1998
Cancellation Notification of Temporary Change Notice 1-98-0066 to Procedure 6610-PLN-4200.02
ML20206C0911998-09-0101 September 1998
Rev 17 to Odcm
ML20249B2421998-06-11011 June 1998
Proposed Tech Specs Re Alternate High Radiation Area Control
ML20216E9751998-04-13013 April 1998
Emergency Dose Assessment Users Manual, for Insertion Into Rev 7 of Edcm
ML20216E9491998-04-0909 April 1998
Rev 7,Temporary Change Notice 1-98-003 to 6610-PLN-4200.02, Edcm, Changing Pages 2 & 57 & Adding New Emergency Dose Assessment Users Manual
ML20217J8201998-03-25025 March 1998
Proposed Tech Specs Page 6-1,reflecting Change in Trade Name of Owners & Operator of TMI-1 & Correcting Typo
ML20217E5311998-03-23023 March 1998
Proposed Tech Specs Pages for Section 3.1.2 to Incorporate New Pressure Limits for Reactor Vessel IAW 10CFR50,App G for Period of Applicability Through 17.7 EFPY
ML20202B2061998-01-30030 January 1998
Rev 7,Temporary Change Notice 1-98-0013 to 6610-PLN-4200.02, Edcm
ML20198T4721997-12-31031 December 1997
TMI-1 Cycle 12 Startup Rept
ML20217G0201997-10-0303 October 1997
Proposed Tech Specs Re Revised Pages 4-80 & 4-81 Previously Submitted
ML20211F3781997-09-24024 September 1997
Proposed Tech Specs Revising Steam Line Break Accident Dose Consequence
ML20211C2431997-09-19019 September 1997
Proposed Tech Specs Re Decay Heat Removal Sys Leakage
ML20211C3421997-09-19019 September 1997
Proposed Tech Specs Pages 3.8-3.9b to TS Section 3.1.4 Providing More Restrictive Limit of 0.35 Uci/Gram Dose Equivalent I-131 & Clarifying UFSAR Analysis
ML20210K0011997-08-14014 August 1997
Proposed Tech Specs Revising TMI-1 UFSAR Section 14.1.2.9 Environ Dose Consequences for TMI-1 Steam Line Break Analysis
ML20141J4051997-08-12012 August 1997
Proposed Tech Specs Revising Surveillance Specification for Once Through Steam Generator Inservice Insp for TMI-1 Cycle 12 Refueling (12R) Exams Applicable to TMI-1 Cycle 12 Operation
ML20198E7941997-07-30030 July 1997
Proposed Tech Specs Incorporating Addl Sys Leakage Limits & Leak Test Requirements for Systems Outside Containment Which Were Not Previously Contained in TS 4.5.4 Nor Considered in TMI-1 UFSAR DBA Analysis Dose Calculations for 2568 Mwt
ML20151K2071997-07-25025 July 1997
Revised TS Page 6-19 Replacing Corresponding Page Contained in 970508 Transmittal of TS Change Request 264
ML20217M7251997-06-22022 June 1997
Rev 16 to Procedure 6610-PLN-4200.01, Odcm
ML20141E1491997-05-0808 May 1997
Proposed Tech Specs,Consisting of Change Request 264, Incorporating Addl NRC-approved Analytical Methods Used to Determine TMI-1 Core Operating Limits
ML20140E2471997-04-21021 April 1997
Proposed Tech Specs 3.3.1.2,changing Required Borated Water in Each Core Flood Tank to 940 ft,4.5.2.1.b,lowering Surveillance Acceptance Criteria for ECCS HPI Flow to 431 Gpm & 3.3.1.1.f Re Operability of Decay Heat Valves
ML20134M1211997-02-0707 February 1997
Proposed Tech Specs,Incorporating Certain Improvements from Revised STS for B&W plants,NUREG-1430
ML20133D2821996-12-24024 December 1996
Proposed Tech Specs 3.15.3 Re Auxiliary & Fuel Handling Bldg Air Treatment Sys
ML20132F3301996-12-16016 December 1996
Proposed Tech Specs,Reflecting Change in Legal Name of Operator of Plant from Gpu Corp to Gpu Inc & Reflecting Plant License & TS Registered Trade Name of Gpu Energy
ML20135D0991996-12-0303 December 1996
Proposed Tech Specs Incorporating Certain Requirements from Revised B&W Std TS,NUREG-1430
ML20135C5321996-12-0202 December 1996
Proposed Tech Specs Re Relocation of Audit Frequency Requirements
ML20128H4121996-10-0303 October 1996
Errata to Proposed Ts,Adding Revised Table of Contents & Making Minor Editorial Corrections
ML20117H0451996-08-29029 August 1996
Proposed Tech Specs,Consisting of Change Request 257, Incorporating Certain Improvements from STS for B&W Plants (NUREG-1430)
ML20113D1971996-06-28028 June 1996
Proposed Tech Specs,Consisting of Change Request 259, Allowing Implementation of Recently Approved Option B to 10CFR50,App J
ML20112C8791996-05-24024 May 1996
Proposed Tech Specs Re Pages for App A.Certificate of Svc Encl
ML20138B4641996-05-0606 May 1996
Rev 14 to Procedure 6610-PLN-4200.01, Odcm
ML20101R1571996-04-10010 April 1996
Proposed Tech Specs,Revising Addl Group of Surveillances in Which Justification Has Been Completed
ML20100J6931996-02-22022 February 1996
Proposed Tech Specs,Consisting of Change Request 254, Revising Proposed TS Page 4-46 on Paragraph 4.6.2 That Provides Addl Testing Requirements in Case Battery Cell Parameters Not Met
ML20096F0521995-12-31031 December 1995
TMI-1 Cycle 11,Startup Rept
ML20095J2311995-12-21021 December 1995
Proposed Tech Specs,Raising Low Voltage Action Level to 105 Volts DC
ML20092M1941995-09-21021 September 1995
TMI-1 Pump & Valve IST Program
1999-09-01
[Table view] |
Text
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REPORT TRA!!S!!ITTAL l I
I FILE: 13-4 -/6/ l 70: 6/u?n't.' < o., , mo z. For D3stribution CONTRACT NO: 620-0006 l S . jl. Klein - Quality Assurance .
3pg ,g j Central Engineering Files TI'I'LE A B m m'd l J. Q fg y,p f. Ta1.k Enginecr ,py, l
- t. . /P. 19 )r ry t ~ Propc t flanaccr DATE: _2 -/ - 7/7 j STATUS CODE ( l l
%:' C2.~;:x:sn*CX ?MM -
f.M. XTwi.>Eoy l L. C. Rogers - MET. ED. I 1
F. R. Faist - TOLEDO i J. R. Bohart - Intl. Support J. . L. Donnell - 0FR 1 1
B. A. Karrasch - Plant Integration 1
Attached is one copy of' Site Prob 1cm Report No. _ /// which was processed
. on Contract 620-00 06 . Future contracts have been reviewed for the potential of a similar prob 1cm. This problera is/is not considered appJiegbJ e to j other contracts _.
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REMARKS:
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De i ci s ? In. { 12/8/77 13 O m tcci 161 0 PIE.70 pax! P0 [lAL/ 60. CHOLP NO. Liv,. LU.
.. VENDOR Allin-Chalmerc 4 2. 33 O'l PRODLfH CONIACT // .
TITLE (HA/. 30 CH!PACTEES) prF...' .1A ic1.7..ew.<< . T L a. W. .r."un a~..n 'l. D. Ccrbin. -
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DESCRIPil0h Of P ;i O B L E H :
During UT innpectiona of the 1A flywheel, an inspection cover bolt vac inadvertently trapped between the flywheel and the chroud coverind the flywheel. This prevented rotation of the chaft.
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I di o-S T A T U S - t.C i l o ti 10 DATE. INCLUDidG PEES 0N5 C0hTACTED:
a Contacted R. Williascon, J. Thornhill, and Allic-Chalnern. The backntop han been disconnected and the flywheel was rotated backward in order to retrieve the bolt.
The specific location where the belt lays on the flywheel ic being thorcuchly UT'd to diccover any poccible da.r.ac.e. The r.otor har been put back in operatinc
_anler. Th e r e V3r C._n2_.J.U'_.iu2*mr.;'A nn n Y" null 01 Ml1IL- tri>
FURTHER ACTION PLCOHHENDED SY Stif PERS0rNEL:
Engineering evaluation of ar.y further incpections required.
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RESOLVil0N:
SEE A TTA C H.~D COPY OF SPR (PG. 2 oF G Fo I: 12Eso t u rtoo gy .f. 6 . T'14012 N 4 t L C. l3. DCM PSEY.
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PRIPARED BY / DATE APPROYED BY DATE a.UYg!U.A.htAbts
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COSI CA1EGORf Fl[tD CHANGE REQ f.C.A. NO.
S I C'N i f . DElICllNCY ONORH OTHfR C CYES NO [g o.4 94 g yl S ho (g Si1E C0HPLE110N FLPORT: DEilAl10NS:
? . '." ' O NONE SP R k I V N O. [~]
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Jeracy Central 1.M/:,; . .{./ M2f8/T7 13 - C20-oc06 161 0 l y[nooi P.v. no. em c0Tli^st no. a oue 80. 54 nu.
Allin.Cha]nerc 4 "?. 33 CPI
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PROCLLH C01114C1 i
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I DESCRIPil0H Of PROBLEM:
During UT incpections of the 1A flywheel, an incpection cover bolt van !
inadvertently trapped between the flyvhec1 and the chroud covering the i flywheel. Thic prevented rotatien of the chaft. l p
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STAlV$-AC110H 10 DATE, lHCLUDitiG PERSOMS C0)(TACTED: .I E
l r"- Contacted R. Williamson, J. Thornhill, and A111c-Chair.cro. The backstop han been disconnected and the flywhccl was rotated bachvard in order to retrieve the bolt. !
, The specific location where the bolt lays on the f.lywheel ic being thorouChly !
UT'd to discover any possibic damage. The motor han been put back in operating I
.ordcr. Titero vqr.c_na. UT 4 a . r "~ ~ a "anu.1 t 0 f' t hir.-ird -
( U f T il E R AC110N RE C0HiliND EO SY Si1E PERSONNEL:
Engineering evaluation of any further inspections required.
z RESoLU11OH:
Our interpretation of the statement "no UT instances" is that there are "no reportable UT indications". We have also been informed verba.11y that there are no visibic marks on the flywhcc1 caused by the trapped bolt.
We see no need for any further inspection of the subject flyuheel.
APPROVED BY DATE
- f 0 BY ////r D A T E
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[ [y j [W[D cy / f f DATE a:
COSI CAllCORY flELD CllANGE REQ f.C.A. NO.
SIGNif. OlfICIIECY O ttoni diner O OYtS N0 0 09- OYtS
- LJ SilE COMPLC110N REPORT: O!VIAll0NS:
O NONE SPR f.IV KO. O r.
DAll COMPLLl[0:
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- E0HPLE1ED By DATE w
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