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Category:INTERNAL OR EXTERNAL MEMORANDUM
MONTHYEARML20211H4441999-08-27027 August 1999 Notification of Significant Meeting with Util on 990916 & 17 in Arlington,Tx to Improve Utility & NRC Understanding of Industry & Regulatory Perspectives on Current Issues ML20209G2421999-07-14014 July 1999 Notification of 990722 Meeting with License in Rockville, MD to Discuss Changes in EOI Licensing Organization Including Division of Responsibilities within New EOI Corporate Licensing Group ML20203J5931999-02-17017 February 1999 Notification of Significant Licensee Meeting with Util on 990329 Re NRC Plant Performance Review Summary Meeting ML20203A5081999-02-0505 February 1999 Notification of 980226 Meeting with Texas Utils Electric Co, Southern California Edison & NPPD Re Control of Hazard Barrier Tr, .Agenda Encl ML20195H9221998-11-17017 November 1998 Forwards Exam Repts 50-445/98-301 & 50-446/98-301 Conducted on 980619-26 with as Given Written Exams Encl,Designated for Distribution ML20153B0331998-09-18018 September 1998 Notification of 980929 Meeting with Texas Utilities Electric Co in Rockville,Md to Discuss Licensee Proposed App K Exemption Request & Topical Rept Submitted in Support of Exemption Request ML20236G8291998-07-0202 July 1998 Notification of 980720 Meeting W/Util in CPSES Nuclear Operations Support Facility Lab Annex to Discuss Midloop Operations During Last Refueling Outage ML20236F7611998-06-29029 June 1998 Notification of 980714 Meeting W/Util in Rockville,Md to Discuss Methods of ECCS Analyses & Licensing Submittals Required for Proposing Exemption to Appendix K & Power Uprate License Amend ML20217M9351998-04-0606 April 1998 Notification of Licensee Meeting W/Util on 980407 in Arlington,Tx Re Status of Licensee Actions in Response to GL 96-01 ML20202E6791997-12-0202 December 1997 Notification of 971209 Meeting W/Texas Utilities Electric Co in Rockville,Maryland to Discuss risk-informed Inservice Testing Request for Addl Info Responses, ML20202B1421997-11-26026 November 1997 Notification of 971115 Meeting W/Util in Arlington,Texas to Discuss Recent Unit 2 Refueling/Maint Outage at TU Electric Comanche Peak Plant ML20212G3921997-10-27027 October 1997 Notification of 971112 Meeting W/Util to Discuss Util 970228 Responses to Remaining Three Open Items Listed in NRC Safety Evaluation on Cable Functionality, .Reissued Due to Change of Cc:List ML20203C1181997-10-24024 October 1997 Discusses OI Rept 4-97-027 Re Falsification of Thermolag Matl Insp Records.Allegation Not Substantiated Therefore Enforcement Action Not Appropriate ML20212B7261997-10-16016 October 1997 Notification of 971031 Meeting W/Util in Arlington,Tx Re Predecisional Enforcement Conference ML20206E3401997-09-19019 September 1997 Requests That NRR Conduct Review of Licensee Backfit Claim to Determine of plant-specific Backfit Exists & Submits Recommended Actions to Be Taken If One Does Exists ML20217R1561997-08-28028 August 1997 Informs That GL 96-04 Did Not Require Response for Licensee That Did Not Have Boraflex in Sf Racks ML20237B9901997-07-0303 July 1997 Informs That on 970529-30,NRC Team Attended Severe Accident Mgt Implementation Demonstration at Comanche Peak Steam Electric Station,In Granbury,Tx ML20137C9201997-03-20020 March 1997 Forwards Documentation of Meeting Conducted in Region 4 Office on 970225 to Discuss NRC Enforcement Policy as Applied to Nonescalated Enforcement ML20134N2911996-11-22022 November 1996 Notification of 961205 Meeting W/Util in Arlington,Tx to Discuss Responses to Open Items Listed in NRCs Safety Evaluation on Cable Functionality at Plant, ML20134L9821996-11-19019 November 1996 Notification of Licensee Meeting W/Util on 961204 to Discuss Revision 25 to Emergency Plan ML20128P3011996-10-10010 October 1996 Forwards Analysis of Financial Qualifications & Antitrust Reviews & Input to SER on Proposal to NRC by Tuec for Tx Utilities Corp ML20129E9031996-10-0101 October 1996 Notification of 961002 Meeting W/Util in Rockville,Md Re License Amend Request 96-005,inverters & Battery Chargers Mod ML20135A2801996-04-10010 April 1996 Discusses Director'S Decision Re Actions Requested by Petitioners W/Regard to Use of Thermo-Lag by Reactor Licensees.Petitioners Requested Immediate Shutdown of Reactors Using Thermo-Lag ML20078H7831994-11-0707 November 1994 Forwards Rev 11 to CPSES ODCM & Receipt Acknowledgement Sheet ML20059K5261994-01-21021 January 1994 Notification of 940203 Meeting W/Util in Arlington,Tx to Discuss Realignment of Nuclear Overview Functions ML20059K4921994-01-21021 January 1994 Notification of 940204 Meeting W/Util in Glen Rose,Tx to Discuss Unit 1 Outage Related Activities ML20058C5451993-11-22022 November 1993 Notification of 931202 Enforcement Conference Re Reactor Coolant Spill Inside Containment on 931026 ML20058N1471993-10-0505 October 1993 Notification of 931006 Meeting W/Util in Rockville,Md to Discuss Implementation of Std TSs for Both Units ML20057C9801993-09-27027 September 1993 Discusses 930927 Press Conference Re J O'Connor Announcement That Util Settled Six Rate Matters & Appeals Before Illinois Courts & Commerce Commission by Agreeing to Refund Listed Amount to Customers Over Next 12 Months ML20057A8271993-09-13013 September 1993 Notification of 930920 Meeting W/Util in Rockville,Md to Discuss Fire Barrier Testing & Implementation on Unit 1 ML20056H2941993-09-0101 September 1993 Notification of 930916 Meeting W/Util in Comanche Peak Steam Electric Station to Discuss Safe Shutdown Risk & Other Issues Associated W/Scheduled Oct 1993 Refueling Outage ML20056E4571993-08-0505 August 1993 Forwards Technical Review Rept Re, Tardy Licensee Actions Initiated Because of Delayed Replacement of Batteries in Uninterruptible Power Supplies at Plant ML20128F3531993-02-0202 February 1993 Discusses Emergency Motion to Stay Issuance of low-power Ol.Motion Requested That Commission Issue Order Staying Issuance of Low Power License & Grant Petitioners Chance to Review Withheld Documentation Re Settlement Agreements ML20128D5741993-01-27027 January 1993 Forwards Sworn Joint Affidavit of I Barnes & Ft Grubelich ML20127L9121993-01-26026 January 1993 Forwards NRC Staff Reply to Cfur Request for Publication of Proposed Action Re Licensing of Unit 2.Sworn & Executed Affidavits of I Barnes & Ft Grubelich Will Be Filed as Soon as Possible ML20127H4811993-01-18018 January 1993 Notification of 930121 Meeting W/Util in Rockville,Md to Discuss Fire Protection issues,Thermo-lag Installation Issues & Test Reports ML20127D6951993-01-13013 January 1993 Notification of Significant Licensee Meeting W/Util on on 930122 to Discuss Results of ORAT Insp ML20127C4861993-01-11011 January 1993 Notification of 920115 Public Mgt Meeting W/Util in Region IV Ofc to Discuss CPSES Temporary Mod Program ML20126H3491992-12-29029 December 1992 Notification of Significant Licensee Meeting W/Util on 930107 to Discuss Plant Monthly Status of Const & Licensing Activities ML20126K7681992-12-24024 December 1992 Forwards Part of Earlier Submittal by TU Electric for Distribution as Was Done for Previous Submittal Re ME215 Sapcas Computer Code.Proprietary Abstract Also Encl.Abstract Withheld ML20126F4161992-12-18018 December 1992 Notification of 930107 Meeting W/Util in Rockville,Md to Discuss Design & Operability of Alternate Min Recirculation Path in Highhead Pressure Safety Injection Sys ML20126D9061992-12-14014 December 1992 Notification of 921217 Meeting W/Util in Rockville,Md to Discuss Fire Protection Issues at Plant ML20057C9921992-10-26026 October 1992 Partially Withheld Memo Discussing Rape Allegation at Plant ML20127F5051992-10-21021 October 1992 Discusses 921020 Telcon W/R Feldman of Thermal Science,Inc (TSI) Re 921018 Rept Made by Util That Less than 10 of 2,000 Conduit Sections Provided by TSI Showed Signs of Delamination & Some Had Occluded Porosity in Cross Sections IR 05000445/19920181992-07-0606 July 1992 Discusses Allegation RIV-92-A-0016 Reviewed During Insp Repts 50-445/92-18 & 50-446/92-18 Re Disposal of Radioactive Matl in Landfill Located on Licensee Property ML20057B4601992-05-15015 May 1992 Discusses Telcon W/Rm Dow Re Plant ML20057B1881991-04-18018 April 1991 Discusses 910405 Telcon W/Alleger Re Security Sys at Plant ML20029A4071991-02-13013 February 1991 Forwards Correspondence sign-off Sheet for LER 90-036-01. Suppl Acceptable for Submittal to NRC ML20057B1781991-02-0505 February 1991 Discusses Allegations Made by M Dow Re Scores of Security, Safety Violations & Allegation of Sexual Harassment at Plant ML20065K0251990-11-0707 November 1990 Forwards Amend 2 to Tech Specs,Modifying Tables 2.2-1 & 3.3-3 Re Neutron Flux Meter Setpoints 1999-08-27
[Table view] Category:MEMORANDUMS-CORRESPONDENCE
MONTHYEARML20211H4441999-08-27027 August 1999 Notification of Significant Meeting with Util on 990916 & 17 in Arlington,Tx to Improve Utility & NRC Understanding of Industry & Regulatory Perspectives on Current Issues ML20209G2421999-07-14014 July 1999 Notification of 990722 Meeting with License in Rockville, MD to Discuss Changes in EOI Licensing Organization Including Division of Responsibilities within New EOI Corporate Licensing Group ML20203J5931999-02-17017 February 1999 Notification of Significant Licensee Meeting with Util on 990329 Re NRC Plant Performance Review Summary Meeting ML20203A5081999-02-0505 February 1999 Notification of 980226 Meeting with Texas Utils Electric Co, Southern California Edison & NPPD Re Control of Hazard Barrier Tr, .Agenda Encl ML20195H9221998-11-17017 November 1998 Forwards Exam Repts 50-445/98-301 & 50-446/98-301 Conducted on 980619-26 with as Given Written Exams Encl,Designated for Distribution ML20153B0331998-09-18018 September 1998 Notification of 980929 Meeting with Texas Utilities Electric Co in Rockville,Md to Discuss Licensee Proposed App K Exemption Request & Topical Rept Submitted in Support of Exemption Request ML20236G8291998-07-0202 July 1998 Notification of 980720 Meeting W/Util in CPSES Nuclear Operations Support Facility Lab Annex to Discuss Midloop Operations During Last Refueling Outage ML20236F7611998-06-29029 June 1998 Notification of 980714 Meeting W/Util in Rockville,Md to Discuss Methods of ECCS Analyses & Licensing Submittals Required for Proposing Exemption to Appendix K & Power Uprate License Amend ML20217M9351998-04-0606 April 1998 Notification of Licensee Meeting W/Util on 980407 in Arlington,Tx Re Status of Licensee Actions in Response to GL 96-01 ML20202E6791997-12-0202 December 1997 Notification of 971209 Meeting W/Texas Utilities Electric Co in Rockville,Maryland to Discuss risk-informed Inservice Testing Request for Addl Info Responses, ML20202B1421997-11-26026 November 1997 Notification of 971115 Meeting W/Util in Arlington,Texas to Discuss Recent Unit 2 Refueling/Maint Outage at TU Electric Comanche Peak Plant ML20212G3921997-10-27027 October 1997 Notification of 971112 Meeting W/Util to Discuss Util 970228 Responses to Remaining Three Open Items Listed in NRC Safety Evaluation on Cable Functionality, .Reissued Due to Change of Cc:List ML20203C1181997-10-24024 October 1997 Discusses OI Rept 4-97-027 Re Falsification of Thermolag Matl Insp Records.Allegation Not Substantiated Therefore Enforcement Action Not Appropriate ML20212B7261997-10-16016 October 1997 Notification of 971031 Meeting W/Util in Arlington,Tx Re Predecisional Enforcement Conference ML20206E3401997-09-19019 September 1997 Requests That NRR Conduct Review of Licensee Backfit Claim to Determine of plant-specific Backfit Exists & Submits Recommended Actions to Be Taken If One Does Exists ML20217R1561997-08-28028 August 1997 Informs That GL 96-04 Did Not Require Response for Licensee That Did Not Have Boraflex in Sf Racks ML20237B9901997-07-0303 July 1997 Informs That on 970529-30,NRC Team Attended Severe Accident Mgt Implementation Demonstration at Comanche Peak Steam Electric Station,In Granbury,Tx ML20137C9201997-03-20020 March 1997 Forwards Documentation of Meeting Conducted in Region 4 Office on 970225 to Discuss NRC Enforcement Policy as Applied to Nonescalated Enforcement ML20134N2911996-11-22022 November 1996 Notification of 961205 Meeting W/Util in Arlington,Tx to Discuss Responses to Open Items Listed in NRCs Safety Evaluation on Cable Functionality at Plant, ML20134L9821996-11-19019 November 1996 Notification of Licensee Meeting W/Util on 961204 to Discuss Revision 25 to Emergency Plan ML20128P3011996-10-10010 October 1996 Forwards Analysis of Financial Qualifications & Antitrust Reviews & Input to SER on Proposal to NRC by Tuec for Tx Utilities Corp ML20129E9031996-10-0101 October 1996 Notification of 961002 Meeting W/Util in Rockville,Md Re License Amend Request 96-005,inverters & Battery Chargers Mod ML20135A2801996-04-10010 April 1996 Discusses Director'S Decision Re Actions Requested by Petitioners W/Regard to Use of Thermo-Lag by Reactor Licensees.Petitioners Requested Immediate Shutdown of Reactors Using Thermo-Lag ML20078H7831994-11-0707 November 1994 Forwards Rev 11 to CPSES ODCM & Receipt Acknowledgement Sheet ML20059K4921994-01-21021 January 1994 Notification of 940204 Meeting W/Util in Glen Rose,Tx to Discuss Unit 1 Outage Related Activities ML20059K5261994-01-21021 January 1994 Notification of 940203 Meeting W/Util in Arlington,Tx to Discuss Realignment of Nuclear Overview Functions ML20058C5451993-11-22022 November 1993 Notification of 931202 Enforcement Conference Re Reactor Coolant Spill Inside Containment on 931026 ML20058N1471993-10-0505 October 1993 Notification of 931006 Meeting W/Util in Rockville,Md to Discuss Implementation of Std TSs for Both Units ML20057C9801993-09-27027 September 1993 Discusses 930927 Press Conference Re J O'Connor Announcement That Util Settled Six Rate Matters & Appeals Before Illinois Courts & Commerce Commission by Agreeing to Refund Listed Amount to Customers Over Next 12 Months ML20057A8271993-09-13013 September 1993 Notification of 930920 Meeting W/Util in Rockville,Md to Discuss Fire Barrier Testing & Implementation on Unit 1 ML20056H2941993-09-0101 September 1993 Notification of 930916 Meeting W/Util in Comanche Peak Steam Electric Station to Discuss Safe Shutdown Risk & Other Issues Associated W/Scheduled Oct 1993 Refueling Outage ML20056E4571993-08-0505 August 1993 Forwards Technical Review Rept Re, Tardy Licensee Actions Initiated Because of Delayed Replacement of Batteries in Uninterruptible Power Supplies at Plant ML20128H2931993-02-10010 February 1993 Staff Requirements Memo Re Emergency Motion to Stay Issuance of low-power Operating License.Staff Issued Order Denying Motion ML20128E4301993-02-0505 February 1993 Staff Requirements Memo Re 930129 Affirmation/Discussion & Vote on SECY-93-016 Discussing FRN Concerning Proposed Issuance of OL ML20062J1941993-02-0303 February 1993 Board Notification 93-001:notifies of 930202 Emergency Motion to Stay Issuance of low-power OL Requesting Listed Items Including Issue Order Staying Issuance of License ML20128F3531993-02-0202 February 1993 Discusses Emergency Motion to Stay Issuance of low-power Ol.Motion Requested That Commission Issue Order Staying Issuance of Low Power License & Grant Petitioners Chance to Review Withheld Documentation Re Settlement Agreements ML20128D5741993-01-27027 January 1993 Forwards Sworn Joint Affidavit of I Barnes & Ft Grubelich ML20127L9121993-01-26026 January 1993 Forwards NRC Staff Reply to Cfur Request for Publication of Proposed Action Re Licensing of Unit 2.Sworn & Executed Affidavits of I Barnes & Ft Grubelich Will Be Filed as Soon as Possible ML20127H4811993-01-18018 January 1993 Notification of 930121 Meeting W/Util in Rockville,Md to Discuss Fire Protection issues,Thermo-lag Installation Issues & Test Reports ML20127D6951993-01-13013 January 1993 Notification of Significant Licensee Meeting W/Util on on 930122 to Discuss Results of ORAT Insp ML20127C4861993-01-11011 January 1993 Notification of 920115 Public Mgt Meeting W/Util in Region IV Ofc to Discuss CPSES Temporary Mod Program ML20126H3491992-12-29029 December 1992 Notification of Significant Licensee Meeting W/Util on 930107 to Discuss Plant Monthly Status of Const & Licensing Activities ML20126K7681992-12-24024 December 1992 Forwards Part of Earlier Submittal by TU Electric for Distribution as Was Done for Previous Submittal Re ME215 Sapcas Computer Code.Proprietary Abstract Also Encl.Abstract Withheld ML20126F4161992-12-18018 December 1992 Notification of 930107 Meeting W/Util in Rockville,Md to Discuss Design & Operability of Alternate Min Recirculation Path in Highhead Pressure Safety Injection Sys ML20126D9061992-12-14014 December 1992 Notification of 921217 Meeting W/Util in Rockville,Md to Discuss Fire Protection Issues at Plant ML20057C9921992-10-26026 October 1992 Partially Withheld Memo Discussing Rape Allegation at Plant ML20127F5051992-10-21021 October 1992 Discusses 921020 Telcon W/R Feldman of Thermal Science,Inc (TSI) Re 921018 Rept Made by Util That Less than 10 of 2,000 Conduit Sections Provided by TSI Showed Signs of Delamination & Some Had Occluded Porosity in Cross Sections IR 05000445/19920181992-07-0606 July 1992 Discusses Allegation RIV-92-A-0016 Reviewed During Insp Repts 50-445/92-18 & 50-446/92-18 Re Disposal of Radioactive Matl in Landfill Located on Licensee Property ML20057B4601992-05-15015 May 1992 Discusses Telcon W/Rm Dow Re Plant ML20057B1881991-04-18018 April 1991 Discusses 910405 Telcon W/Alleger Re Security Sys at Plant 1999-08-27
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Docket Nos.: 50-445 and 50-446 JUN 2 51985 MEMORANDUM FOR: Vincent S. Noonan, Director for Comanche Peak Project. DL FROM: S. B. Burwell, Project Manager Licensing Branch No. 1, DL
SUBJECT:
FORTHCOMING MEETING WITH TEXAS UTILITIES TO AUDIT THE COMANCHE PEAK DIESEL GENERATOR RELIABILITY PROGRAM DATE & TIME: Monday, July 1, 1985 Tuesday, July 2, 1985 1:00 p.m. - 5:00 p.m. 8:30 a.m. - 4:00 p.m.
LOCATION: Visitors Center / Nuclear Operations Support Facility Comanche Peak Steam Electric Station, F. M. 201 Glen Rose, Texas PURPOSE: Audit the design review / quality revalidation (DR/QR) program for the Comanche Peak diesel generators manufactured by Trans-america Delaval, Inc. (TDI), a part of Phase 2 of the TDI Owners Group Prgram. The enclosed questions will be used as an agenda. Open issues identified in SSER No. 6 Section 9.5.9 I may be discussed.
PARTICIPANTS: NRC APPLICANT S. Burwell D. Woodlan C. Berlinger R. Haskovec D. Persinko C. Ray, et. al.
NRC Consultants D. Dir. gee H. Hardy P. Louzecky A. Wendell ORIGINAL SIrJED BYa S. B. ,9urwell, Project Manager Licensing Branch No. 1 Division of Licensing
Enclosure:
As stated DISTRIBUTION:
See attached page cc: See next page LB#1:DL - LB . P :DL CP:TRT.
SBurwell:kab BJYbTnqblood C ammell VNoon 06/$/85 06 85 6/f /85 06 /8'5 8507050256 850625 gDR ADOCK 050 9
. t
- COMANCHE PEAK JUN 2 5 B65 Mr. M. D. Spence President Texas Utilities Generating Company 400 N. Olive St., L.B. 81 Dallas, Texas 75201 cc: Nicholas S. Reynolds, Esq. Mr. H. Snannon Phillips Bishop, Liberman, Cook, Resident Inspector / Comanche Peak Purcell & Reynolds Nuclear Power Station 1200 Seventeenth Street, N. W. c/o U. S. Nuclear Regulatory Washington, D. C. 20036 Commission 4
P. O. Box 38 Robert A. Wooldridge, Esq. Glen Rose, Texas 76043 Worsham, Forsythe, Sampels &
Wooldridge Regional Administrator 2001 Bryan Tower, Suite 2500 U. S. NRC, Region IV Dallas, Texas 75201 611 Ryan Plaza Drive Suite 1000 Mr. Homer C. Schmidt Arlington, Texas 76011 Manager - Nuclear Services Texas Utilities Generating Company Lanny A. Sinkin Skyway Tower 3022 Porter Street, N. W. #304 400 North Olive Street Washington, D. C. 20008 L. B. 81 Dallas, Texas 75201 B. R. Clements Vice President Nuclear Mr. Robert E. Ballard, Jr. Texas Utilities Generating Company Director of Projects Skyway Tower Gibbs and Hill, Inc. 400 North Olive Street, LB#81 11 Penn Plaza Dallas, Texas 75201 New York, New York 10001 Ms. Billie Pirner Garde Mr. A. T. Parker Citizens Clinic Director Westinghouse Electric Corporation Government Accountability Project P. O. Box 355 1901 Que Street, N. W.
Pittsburgh, Pennsylvania 15230 Washington, D. C. 20009 Renea Hicks, Esq. David R. Pigott, Esq.
Assistant Attorney General Orrick, Herrington & Sutcliffe Environmental Protection Division 600 Montgomery Street P. O. Box 12548, Capitol Station San Francisco, California 94111 Austin, Texas 78711 Anthony Z. Roisman, Esq.
Mrs. Juanita Ellis, President Trial Lawyers for Public Justice Citizens Association for Sound 2000 P. Street, N. W. Suite 611 Energy Washington, D. C. 20036 1426 South Polk Dallas, Texas 75224
- - - , . . , . . . . , . - - . - - . , . , , . _ , _ . . - , , - - , . , . . n.-;-.-- , , , , . , . . - - - . , - , . - - , - . ,
f COMANCHE PEAK JUN 2 5 E85 cc: Ms. Nancy H. Williams CYGNA 101 California Street San Francisco, California 94111 Mr. Dennis Kelley Resident Inspector - Comanche Peak c/o U. S. NRC P. O. Box 1029 Granbury. Texas 76048 Mr. John W. Beck Manager - Licensing Texas Utilities Electric Company Skyway Tower 400 N. Olive Street L. B. 81 Dallas, Texas 75201 Mr. Jack Redding Licensing Texas Utilities Generating Company i
4901 Fairmont Avenue Bethesda, Maryland 20814 -
! William A. Burchette, Esq.
[ .4eron, Burchette, Ruckert & Rothwell
! Suite 700 1025 Thomas Jefferson St., N. W.
Washington, D. C. 20007 i
Mr. James McGaughy Southern Engineering Company of Georgia 1800 Peachtree Street. H. W.
Atlanta, Georgia 30367-8301 1
_ -- .. - . , , - - _ . ..-.r-._,__.- ....,_,_,_m,, _ , . . -. . _ - - , _ . _ , .-___, --. - - -_ , _ . - _ _ , -,_-_-__v . . _ , ._-
I
, ENCLOSURE o
OUEST10NS RAIS1'O lid.CpSES OR/QR AU0lf REVIEW CP102 - Generator Controla _
In the opinion of the Pfit. Mviewers, the analysis Nported for the generator controls does not meet the objective of the OR/QR effort, priserily because i the methodology followed was too Itaited in scope, It addresses only four of
[ the se'nerators control' components and leaves many out that are critical to system reliability. -
Desien/Qualit.v Concerns Generally most voltage regulator and exciter fatfure modes are considered crittcal to the overall reliability of the diesel generator, especfally those
. tavolving common mode effects. Ceanents pertinent to the results and r
eenclusions of the Comanche Peak OR/QR report acet
! e Diedes and SCRs - States that current ratings are odequate . subject to ,
proper eeoling. Does not address voltage ratings. At least four failuro i l incidents Itsted in the 800 CTS are unexplained as to probable failure l bedes. One failure related to out-of-phase paralleling, it may have been caused by the sustained overvoltage conditions privalent in such events.
The temperature sonitoring provisions of Attachment 4 would not preclude
- the occurmnee of a failure during en emergency operatine condition. It is recommended that tests be implemented to positively ideni.ify over- .
- temperature conditions and permanent corrective actions taken as required.
This effort should be oocamplished by TUGC0 as soon se practical.
o Field fleshing relay. voltage specifications in Attachment 1 may not be adequate. A nominal voltage rating equal to or lower then' the lowest '
A
~eApacted
. dropping resistor by-passed by a normally closed relay contact should use battery voltage should be Speojfied to insure relay pick-up. be to prevent coil demate when eneroiand at higher volta This is standard practice and is needed to insure relay pick ge levels.up under conditions and to preclude relay coil overheating under maximum voltage -
7 -
conditions.
o Rather than relying only on a device such as Glyptol lacquer to monitor festener tightness, positive actions should be taken to insure such tightness. Fostener lockine devices'such as the use of double nuts or e bonding agent such as 40CTI1E U 1 (Lectite Corporation, Newington, j
connecticut 06111) are more positive. -
i o . Substitution of lockable pignttonmeters may be preferred to monitoring by use of Glyptol lacquer.
o f.abinet ventilation -- forced ventilation can creste new reliability problems by sucking-in large quantities of Ifnt and dirt if the cabinet is en the suetion side of the fan (s), .The presence of vent filters would not help if other openings such as enclosure joints.. enused fastener holes, or openings eroved sable penetrations bypass the filters. These problems require much attention to detail and can be avoided by instellino the fans '
so they discharge into the sabinet through filters or with filters en the
2 r
suction cabinet through filters or with filters on the suction side. Or perhaps forced ventilation could be avoided by relocatiing temperature-critical components to the bottom of the enclosure where air temperatures ~
are 1 ewer.
o Power supply Sypassing -- The resoenendations for power supply bypassing
- were made without an apparent knowledge of the energy levels of transient overvoltages to be suppressed. The EDGCTS shows incidents involving large voltage levels tospikes, An investigation insum edequate should be semiconductor made toTUGC0 protection, assessshov1d such energy give t his e high prferity for resolution.
o Current Feedback Signal - The need for this recommendation is not apparent from available performance date. -
o The status remarks of the EDGCT3 designated fifteen t'ncidents ss random i
failures havine no relevance to Comenche Peak reltability. These random failures include four fuseholder fativres and seven relay or relay contact l
failures representing discernible feiture patterns which should be l investigated. No effort appears to have been made to identify and document ell probable failure. modes on other listed incidents. Most of these l
l incidents caused outape of the emerpency generator, therefore their impact
.should have been cons <dered critice to reliability.
F-068 - Intercooler The report dfd not confirm that the heat rejection ca ncity of the cooler is ,ie adequate for the application. In the case of the tur >ocharger thte was done v test leg's. A related concern id whether the cooler will function adequately if
~
it were 102 (example) fouled. .00-420 - Lube 011 Pressure Reeuiator.v Valve The QR inspectfon reports apparently were not available to the Owners' Group Review Team. Does the conclusion regarding edequacy of the component still remain on*open guestion? ,
00-6_21h-Fue)011OrtoTank Can TUGC0 (tre that fuel return entry is not by means of an open funnel which also can e it dirt?
02-3108 - Crankshaft Bearina She1Ts The etnimum oil film thickness of'147 microtnches is about 10% below the u pected minious velve for W 1evel of filtration pertaining to CP5E3. .Noreover, if a 10 micron filter is used it will pass dirt ht is twice the size of the of T f f1m thickness.
bearing shell crush (radial interfarence) and side location, and Normally,f details o the design of oil holes and grooves are considered in a design review because h oe are fundamental to strength. Inbefcation and cooling e.f the bearing. Why was this not done?
-.-n.,--,-,--_n ,- -- - . , - , , - - - . - - . _n,.,,,,,-n,,,--_ _ mm w_
__m ,w--
t Was anything The QR makes no direct reference to hardware cheeks (inspections).
done in this regard?
02-310C - Crankshaft Thrust learine Rinet
! The DR did not address emiel vibretton as a source of thrust bearing feeding.
This can be e significent force. Please explain. ,
The QR makes no reference to inspections. Were any done?
02-336B - Front Geor' Basket /Soltina Was this l The QR does not confirm %et bolts were toreved to 60 ft-lbs.
confirmed?
l 02-341C - piston Pin Assembly The Qlt indicates a complete inspection of pisten pins on E00-01 win l
50G-42 was inspected on all right bank pins with -
fi
' unsatisfactory satisfactory results. results.In vfew of the ensatisfactory(o.ndings s.. River Send)T Canen 100-0 siefler unsettsfeetory results on other 101 engines 500-007 TUSCO., explain why s11 pins were not inspected on The application of chrome p1 sting con reduce the fetigue strength of steels.
Wes this cons (dered in % e DR7 i
02-3803 - tahaust Manifold Soltine and Saskets There het engine parts, have been e number of instances of ffres savsed by fapin It is considered head to e point inside of Ge exhaust senifold shield.imprtent tha en uust elbows. In particular all piping Jefnts shov1d be shocked to insureuse Possible that sprey could not tap noe on hot surfaces if a lenk developed.
of shrouded Joints shout 6e considered. .02-420 lEnotneDrivenLubs011 Puma It is noted that the piasp body end nor:1e Did are tho DR made of cast canfire theseiront presumably ports can Me sounting fienges are also of cast iron.
withstand seismic loed?
02-5404.8.C - Lube 011 Sumo Tank - Strainer MASAO 2 The OR did not address acceesibility for seir.tenance to v Can TU0C0 comment en thief meintaining systes cleanliness end. tightness. ,
02 689 - Off-Eneine Alers Sensors - W(rinn The QR did not confirm thet wirlng (items 2. Si and 4) seet IEEE 383 i requirements.
l l
i
\ ,
4-02-7174.H.! - Ausiliarv Subbese Gaskets. Bottino, Fittinas_
The QR did not include a walkdown to confirm the absence of -low spots thet could trap sludge or foretgn setter. Can TUGC0 confirm this?
02-410A - Misc. teutoment - Aux. Jacket Water Puno The OR makes no mention of the capacit oftheauxiliary(orenginedriven)
Jacket water pumps. Are they edequate .
02-810C - Jacket Water Meat Exchancer Wee 'is no indication that the heet exchenger performance will be adequete under the estremes of teeperature Wt might prevetl et TU0Co. % review does not correlate the performance of the various components of he system such as
~
the jacket water pump, strainers and thensostats. Are W y all compatiblef 02-410E . Jacket Water Standoise Heater P/oblems with W component were encountered at Shorehen. Can TUGC0 sonfirm that there is no similert.y between t the shorehen sad Cp5ES installations?02-820s - Aust1farv tube 011 puse The OR does not state est the capacity and pressure of'this pump is equal to that of Oc engine driven pump. TUGC0 should verify dis.
02-8200,E - Lube 011 Yeanware Strainer / Filter The OR did not verify Wt the stratner or filter. flew esosoity is equal te or
- greater than that of the prelvbe off pump (90 GPM). 100C0 should confirm this.
Note also that a plot of filter dp versus time would be a useful maintenance tools g.820F 6 Fuel Flow Lube 011 Filters 100C0 should verify that the filter capacity is sufficient for the engine delven -
lube oil pump (600 GPM). Also. %ere is no indication as to whether a relief valve and bypass around the filter is provided. If it is, the valve should be installed at. the top of the' filter to prevent the passage.ef dirt and sludge into the eAgine if the valve lifts. If %e engine is required to start when %e lobe oil heater 1s inoperative. it mey be necessary to have a bypass in order to -
insure that the engine will be Ivbefeated adequately under this cold start condition. In any case, the pressure drop should be checked and recorded at
' regular intervals so es to enticipate de necessity for a filter change. -
Appendix C tadteates a number of instances of excessive pressure drop serost s
filters which indleates Wt filter elements are not always changed when they j should be. ,
02-8206 - Lube 011 Heat (scheneer-f If We cooling water is too cold, eludse in W oil will deposit en the fins and i
reduce W heet exehanger espectty. Was this considered in the OR/047
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3-820H - Lube 011 Fuel hessure Strainer l
. TUSCO should confirm that the capacity is greater than or equel to that of the
' - engine driven tube oil pump (600 GPM). .
02-825A - fuel 011 Day Tank 4
There is no indication in the OR/QR that there.ts adequate means of removing water fra ne fuel oil to insure that W fuel injection pumps are protected.
A drein line at the bottee ei the day tank wovid be useful in view of the intermittent operation of the engine. Howevers even if the engine runs sentinuously for several hours at fulf lead, there will be insufficient stee for, water to settle in the de;r tank; TUGC0 should verify Wt there is means for stripping or filtering va",er from the fuel ott.
! M-83SA - Startina Air Skid Base. Tank Relief Valve. Float Tras and Tank TU0C0 should verify W4 there is adequate eccessibility to: the air valves and fToat traps.for saintenance. In addition..it is noted thet the starging air relief velve capacity is slightly greeter then the compressor espasity. TUGC0 should verify that it is not possible to connect more then one sempressor to
- each air tank.
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