ML16342A756
| ML16342A756 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 04/05/1999 |
| From: | Brookman K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| NUDOCS 9904130065 | |
| Download: ML16342A756 (72) | |
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UNITED STATES NUCLEAR REGULATORYCOMMISSION REGION Iv 611 RYAN PLAZADRIVE, SUITE 400 ARLINGTON,TEXAS 76011<064 APR -5 l999 NOTICE OF LICENSEE MEETING Name of Licensee:
Name of Facility:
Dockets:
Date and Time of Meeting:
Location of Meeting:
Purpose of Meeting:
NRC Attendees:
Licensee Attendees:
Pacific Gas and Electric Company Diablo*Canyon 50-275; 50-323 April23, 1999 2 p.m. (PDT)
Embassy Suites Hotel 333 Madonna Road San Luis Obispo, CA 93401 Discuss the results of Plant Performance Review 99-01 Ken Brockman, Director, Division of Reactor Projects (DRP)
Linda Smith, Chief, Project Branch E, DRP Dave Proulx, Senior Resident Inspector, DRP Charles Hackney, State Liaison Officer Greg Rueger, Senior Vice President and General Manager Larry Womack, Vice President Nuclear Technical Services Dave Oatley, Vice President and DCPP Plant Manager BillCrockett, Manager, Nuclear Quality Services Jim Tomkins, Manager, Nuclear Safety Assessment and Licensing Jim Becker, Manager, Operation Services Dave Miklush, Manager, Engineering Services Steve Friedley, Manager, Site Services Bob Waltos, Manager, Maintenance Services NOTES:
(1)
This meeting is open to attendance by members of the general public.
(2)
Following the meeting, NRC officials willbe available to answer questions from reporters, state and local officials, and interested members of the public.
9904i30065 990405 PDR ADOCK 05000275 P
4 Pacific Gas and Electric Company (3)
NRC personnel, not listed above, that desire to attend this meeting should notify Linda Smith at (817) 860-8137 by COB on April 19.
Approved By:
Ke E. Bro n, D'tor vision of Reacto rojects CC:
Gregory M. Rueger, Senior Vice President and General Manager.
Nuclear Power Generation Bus. Unit Pacific Gas and Electric Company Nuclear Power Generation, B32 77 Beale Street, 32nd Floor P.O. Box 770000 San Francisco, California 94177 Dr. Richard Ferguson Energy Chair Sierra Club California 1100 lith Street, Suite 311 Sacramento, California 95814 Ms. Nancy Culver San Luis Obispo Mothers for Peace P.O. Box 164 Pismo Beach, California 93448 Chairman San Luis Obispo County Board of Supervisors Room 370 County Government Center San Luis Obispo, California 93408 Mr. Truman Burns>Mr. Robert Kinosian California Public Utilities Commission 505 Van Ness, Rm. 4102 San Francisco, California 94102 Robert R. Wellington, Esq.
Legal Counsel Diablo Canyon Independent Safety Committee 857 Cass Street, Suite D Monterey, California 93940
Pacific Gas and Electric Company Mr. Robert A. Laurie, Commissioner California Energy Commission 1516 Ninth Street (MS 31)
Sacramento, California 95814 Mr. Ed Bailey, Chief Radiologic Health Branch P. O. Box 942732, MS 178 Sacramento, Caiifornia 94234-7320 Mr. Steve Hsu Radiologic Health Branch State Department of Health Services P.O. Box 942732 Sacramento, California 94234 Christopher J. Warner, Esq.
Pacific Gas and Electric Company P.O. Box 7442 San Francisco, California 94120 David H. Oatley, Vice President Diablo Canyon Operations and Plant Manager Diablo Canyon Nuclear Power Plant P.O. Box 3 Avila Beach, California 93424 Managing Editor Telegram-Tribune 1321 Johnson Avenue P.O. Box 112 San Luis Obispo, California 93406 County Administrative Officer San Luis Obispo County Room 370, county Government Center San Luis Obispo, CA 93408
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Pacific Gas and Electric Company APR 5 l999 E-Mail To:
FOR
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PMNS PAB FJM BWS BAB2 SDB1 OE MAIL CAH GFS JAC1, CJG LAT, DLF, LJB1 CLG, LMB, NLH CMS, WSW PDP LPL NRC Attendees Mtg Announcement Coordinator DEDR A/D/NRR Acting, ADT/NRR Acting ADP/NRR Steve Bloom, Project Manager, NRR D/OE C. A. Hackney, RSLO G: F. Sanborn, EO RA Secretaries DRP Division DRS Division DNMS Division D. Papa P. Longdo cc:
DMB (IE 40)
OEDO RIV Coordinator (16E15)
ORA File RIV File D:DRP RSLO C:DRP/E LJSmith 3/Z'I /99 PAO
'IV:PE:DRP/E JFMelfi;df 3/~/99 BWHenderson CAHa ne EBr ckma
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/99 OFFICI L RECORD COPY DOCUMENT NAME: R:QDC'tDC4-23MN.DRP To receive co of document, indicate ln box: "C" = Co without enclosures "E" = Co with enclosures "N = No co
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Pacific Gas and Electric Company 4'R -5 j999 E-Mail To:
FOR
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NRC Attendees PMNS Mtg Announcement Coordinator PAB DEDR FJM
.A/D/NRR BWS Acting, ADT/NRR BAB2 Acting ADP/NRR SDB1 Steve. Bloom, Project Manager, NRR OEMAIL D/OE CAH C. A. Hackney, RSLO GFS G. F. Sanborn, EO JAC1, CJG RA Secretaries LAT, DLF, LJB1 DRP Division CLG, LMB, NLH DRS Division
'MS, WSW DNMS Division PDP D. Papa LPL P.
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OEDO IV Coordinator (16E15)
ORA File RIV File DOCUMENT NAME: R:QDCEDC4-23MN.DRP To receive co of document, Indicate In boxr "C" = Co without enclosures "E ~ Co with enclosures "N = No co RIV:PE:DRP/E JFMelfi;df 3/W/99 C:DRP/E LJSmith 3/Z'R /99 PAO RSLO 3/$ L /99
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/99 OFFICI L RECORD COPY BWHenderson CAHa ne D:DRP EBr kma
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, Item: ADAMS Document Library: ML ADAMS"HQNTAD01 ID: 003699863'1
Subject:
Diablo Canyon Unit 1, Emergency Diesel Generator 1-3 Valid Failure, Special Report 00-04, Body:
ADAMS DIST@PUTION NOTIFICATION.
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IE22 - 50.73/50.9 Licensee Event Report (LER), Incident Rpt, etc.
Docket: 05000275 Page 2
Pacific Gas and Electric Company March 29, 2000 PGRE Letter DCL-00-046 David H. Oatley Diablo Canyon Power Plant Vice President-Diablo Canyon PO. Box 56 Operations and Plant Manager Arila Beach. CA 93424 605.545.6000 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Docket No 50-275, OL-DPR-80 Diablo Canyon Unit 1 C
S ecial Re ort 00-04 Emer enc Diesel Generator 1-3 Valid Failure
Dear Commissioners and Staff:
Pursuant to the special reporting requirements of Diablo Canyon Power Plant Technical Specification (TS) 4.8.1.1.4, and NRC Regulatory Guide (RG) 1.108, Revision 1, PGRE is submitting this special report regarding a failure of Emergency Diesel Generator (EDG) 1-3, to start.
Using the guidance of RG 1.108, Sections B and C. 2. e, this event was evaluated and conservatively determined to be a valid failure. At the time, Unit 1 was in Mode 1. EDG 1-1 and 1-2 remained operable throughout the event and the allowable action time of 7 days was not exceeded.
ln accordance with RG 1.108, Section C. 3. b, the following information is provided:
1.
Diesel generator. involved: EDG 1-3 2.
Number of valid failures in last 100 EDG 1-3 valid tests:
1 3.
Cause of failure: Awire, required for a previous modification in 1993, was not installed in the alternate (nonessential) start circuit. The primary and alternate start circuits are in parallel and are separated (fuses installed), but energized by the same relay.
In the normal configuration (fuses installed), the missing wire did not affect EDG operability or prevent the EDG from starting using the primary starting circuit. However, when the circuits were isolated for testing by removing the primary start circuit fuses, and a start signal was transmitted to the alternate circuit only, the EDG failed to start.
0
Document Control De March 29, 2000 Page 2 P
Letter DCL-00%46 4.
Corrective measures taken: Wiring was added to the alternate start circuit and the EDG was started successfully using the primary and alternate circuits.'.
Length of time the EDG was unavailable: EDG 1-3 was declared inoperable from February 28, 2000, at 2235 PST to February 29, 2000, at 1905 PST, a total of 20 hours2.314815e-4 days <br />0.00556 hours <br />3.306878e-5 weeks <br />7.61e-6 months <br />, 30 minutes.
6.
Current surveillance test interval:
31 days.
- 7. Confirmation of proper test interval: The total number of valid failures in the last 100 tests for EDG 1-3 is 1. Thus, the 31 day test interval is in compliance with TS Table 4.8-1 and RG 1.108, Section C. 2. d.
This event was not considered risk significant and could not have adversely affected the health and safety of the public.
Sincerely, David H. Oatley cc:
Steven D. Bloom Ellis W. Merschoff David L. Proulx Diablo Distribution INPO TLH/2245/A0503633
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Item: ADAMS Document Library: ML ADAMS"HQNTAD01 ID'03694287:1
Subject:
Special Report 00-02: Results of Steam Generator Tube Eddy Current Inspections Durin g Unit I Ninth Refuelin Outage Body:
ADAMS DISTRIBUTION NOTIFICATION.
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Accession Number ML003694287.
Distri18.txt A001 - OR Submittal: General Distribution Docket: 05000275 Page 2
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~ Pacific Gas and g<g Electric Company March 15, 2000 PG8 E Letter DCL-00-040 Gregory M. Rueger 77 Beale Street,32nd Floor Senior Vice President and San Francisco, CA 94105 General ManaQer MailingAddress Nuclear Power Generation Mag Code B P.O. Box 770000 San Francisco, CA 94177 415.973.4684 Fax: 415.973.2313 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001 Docket No. 50-275, OL-DPR-80 Diablo Canyon Unit 1 S ecial Re ort 00-02: Results of Steam Generator Tube Edd Current Ins ections Durin Unit 1 Ninth Refuelin Outa e
Dear Commissioners and Staff:
=
In accordance with Diablo Canyon Power Plant Technical Specifications 6.9.2, "Special Reports," and 4.4.5.5b, "Steam Generators," this special report provides the results of steam generator (SG) tube eddy current inspections performed during the Unit 1 ninth refueling outage, completed in March, 1999.
The enclosed tables provide the number and extent of tubes inspected in each SG and the location and percent through-wall of each indication identified.
Sincerely, Gregory M. Rueger cc: Steven D. Bloom Ellis W. Merschoff David L. Proulx State of California Diablo Distribution (w/o enc.)
Enclosure DDM/469 eOSLtGSa8 i
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Enclosure PG8 E Letter DCL-00-040 SPECIAL REPORT 00-02 RESULTS OF STEAM GENERATOR TUBE EDDY CURRENT INSPECTIONS DURING UNIT 1 NINTH REFUELING OUTAGE
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Enclosure PG8 E Letter DCL-00-040 Introduction TS 4.4.5.5b requires that the results of steam generator (SG) tube inspections be submitted to the NRC within 12 months following completion of the inspection.
The report shall include:
1.
Number and extent of tubes inspected.
2.
Location and percent of wall thickness penetration for each indication of an imperfection.
3.
Identifications of tubes plugged.
Table 1 provides the number and extent of tubes inspected in each SG.
100% of tubes were full length inspected by bobbin coil, except for rows 1 and 2 U-bends which were inspected by rotating probes.
Table 2 provides the location and percent through-wall of each indication identified, and identifies the tubes that were plugged in the Unit 1 ninth refueling outage (1R9).
Notes:
1.
Free span indications (e.g., manufacturing burnish mark) that had eddy current signals traceable to preservice inspection data are not considered as reportable indications and are not included in this report.
2.
Bobbin distorted support signals that were not confirmed by Plus Point are not reportable indications and are not included in this report. A discussion of bobbin distorted support signals attributed to axial ODSCC are included in the 90 day report for voltage-based alternate repair criteria (ARC), submitted to the NRC in DCL-99-076 dated June 1, 1999.
Abbreviations and Terms The following provides a definition of abbreviations and terms used in Tables 1 and 2.
SG Row Col Location Inch Plugged Steam Generator Row Column SG location codes (see Figure 1 for definitions)
Distance above or below the center line of the TSP or the top of TS, inches Tube plugged in 1R9 Deplugged Tube was deplugged in 1R9 Bobbin RPC TSP TS Indication SAI SCI SVI Differential inside diameter coil probe Rotating probe Tube support plate Tubesheet Type of indication (either percent through wall or an Indication Code)
INDICATIONCODES Single axial indication (from+Point exam)
Note: SAI may be left in service for the following reasons:
~
Voltage-based ARC for axial ODSCC at TSP intersections
~
W'RC for axial PWSCC in WEXTEXtubesheet
~
Less than 40% through-wall axial PWSCC at dented TSP intersections Single circumferential Indication (from+Point exam)
, Single volumetric indication (from+Point exam)
1 Enclosure PG8 E Letter DCL-00-040 Table 1 Number and Extent of Tube Inspections During 1R9 SCOPE PROBE TYPE SG 11 SG 12 SG 13 SG 14 Full length (except Rows Bobbin 1 and 2 U-bends)
Rows 1 and 2 U-bends Plus Point Hot Leg top-of tubesheet Plus Point 100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%, plus 20% of Row 3 100%
Dented TSP intersections Plus Point 100% from 1H to3H, 20% at4H 100% from 1H to6H, 20% at 7H 20% at 1H 100% from 1H to 3H, 20% at 4H Distorted OD bobbin signals at TSP intersections Plus Point Voltage-based ARC Voltage-Voltage-Voltage-based ARC based ARC based ARC Distorted ID bobbin signals at TSP intersections Free span dings Plus Point Plus Point 100%
20% TSH to 3H 100%
20% TSH to 6H 100%
20% TSH to 1H 100%
20% TSH to 3H TSP ligament indications Plus Point 20% of baseline 20% of baseline 20% of baseline 20% of baseline
- I
Enclosure PGLE Letter DCL-00-040 Table 2 Location and Percent Through-Wall of Indications Identified During 1R9 SG Row 22 Column Indication SAI SVI SAI SAI SAI
- Location, TSH TSC 1H 1H 3H Inch
-1.28 17.57
-0.1
-0.01
-0.02 Status Plugged Plugged Plugged 14 23 19 35 30 24 30 28 34 14 42 36 43 20 44 44 17 28 44 44 25 27 27 28 28 28 28 28 37 37 38 29 40 40 40 20 29 41 41 19 29 12 15 17 19 20 21 24 24 27 29 30 30 33 34 34 35 35 37 37 40 40 40 41 41 41 41 41 41 41 42 43 43 43 43 44 44 44 44 45 SAI SAI SAI 16 SVI SAI SAI SVI SAI SAI 31 SAI 19 SAI 42 45 20 SAI 40 44 SAI SAI SAI SAI SAI SAI SAI SAI SAI SAI SAI SAI 33 37 34 SAI SAI 16 12 SCI SAI 1H 3H 3H 1C TSH 2H 2H TSH 3H 2H 2C 2H 7H 1H 2C 1C 7H 1H 2C 2C 1H 1H 1H 4H 1H 1H 1H 4H 1H 2H 3H 1H 7H 7H 7H TSH 2H 7H 7H TSH 1H
-0.05
-0.1 0.1
-0.21
-0.93
-0.05 0.06
-0.1
-0.27
-0.14 36.96
-0.08
-0.2
-0.26 35.06
-0.01
-0.26 0.2 0.02 0.05 0.05
-0.01 0.05
-0.05
-0.05
-0.02
-0.02 0.01 0.06 67.56 103.63 104.35
-8.38
-0.11 107.09 137.68 0.06
-0.04 Deplugged Plugged Plugged Plugged Plugged Plugged Deplugged Plugged Plugged Deplugged Deplugged Deplugged Deplugged Deplugged Deplugged Deplugged Deplugged Deplugged Deplugged Plugged Plugged Plugged Deplugged
-4
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t Enclosure PG&E Letter DCL-00-040 Table 2 Location and Percent Through-Wall of Indications Identified During 1R9 SG Row 42 23 37 26 27 28 28 28 20 46 22 22 39 39 39 46 44 39 20 44 42 44 45 44 43 44 25 25 42 43 Column 45 46 46 47 47 48 48 48 51 51 52 52 52 54 54 54 55 56 57 58 58 58 58 59 59 59 59 59 59 59 59 60 61 61 61 61 62 62 62 62 62 62 62 62 62 Indication SAI SAI 32 SAI SAI 21 24 15 SAI 33 SAI SAI SAI 22 31 22 30 20 SCI SAI SAI SAI SVI SAI SAI SAI SAI SAI 34 16 16 20 SAI SAI 45 SAI SAI SAI SAI SAI 23 29 26 37 Location 3H 1H 7H 1H 1H 7H 7H 7H 1H 1C 1H 1H 1H 7H 7H 7H 1C 2C 7H TSH 2H 1H 1H 2C 1H 1H 2H 2H 1H 1C 1C 2C 2C 1H 1H 1C 1C 1H 1H 1H 1H 1H 7H 7H 1C 1C Inch
-0.02 62.89
-0.03 0.11 50.69 73.39 84.95 0.12
-0.17 0.04 0.01 65.94 101.24 129.46
-0.3 0.22 130.87
-0.02 0.01 0.06
-0.07 0.06 0.05 0.05
-0.04
-0.04 0.04
-OA1
-0.03
-0.27
-0.21
-0.04
-0.03
-0.35
-0.38
-0.05 0.02
-0.07
-0.1 0.17 44 44 63.52
-0.31
-0.28 Status Deplugged Plugged Deplugged Deplugged Deplugged Plugged Deplugged Deplugged Deplugged Plugged Deplugged Deplugged Deplugged Deplugged Deplugged Deplugged Deplugged Plugged l
t
Enclosure PG8 E Letter DCL-00-040 Table 2 Location and Percent Through-Wall of Indications Identified During 1R9 SG Row Column 64 Indication SAI Location 1H Inch
-0.2 Status Deplugged 41 64 64 SAI 1H 2C
-0.09, Deplugged
-0.18 16 16 40 40 39 10 22 38 36 39 17 17 17 17 37 17 22 35 33 36 36 32 34 20 31 18 29 30 29 28 25 26 14 22 24 23 12 64 65 68 68 68 68 69 71 71 72 73 73 74 74 74 74 74 75 76 76 76 77 77 77 79 79 80 81 82 83 83 83 84 85 86 86 87 87 87 88 89 91 92 SVI 25 SAI SAI 19 27 43 SAI SAI 32 25 20 SAI SAI SAI SAI 20 SAI SAI 38 10 SAI 23 SAI SAI 30 17 28 10 SAI 34 20 23 29 1C 1C 1H 1H 7H 7H 1C 1H 2H 1C 2C 1C 7H 1H 3H 3H 1H 2C 1H 3H 2C 2C 2C 1C 1C 1C 2H 2C 1H 1H 2C 1C 2C 1C 2C 2C 2H 2C 2C 2C 2C 1C 2C
-0.28
-0.36
-0.01 0.17 68.08 102.83
-0.33
-0.09 0.02
-0.3
-0.18
-0.31 34.05
-0.1
-0.16
-0.12
-0.13
-0.09
-0.24 0.08
-0.22
-0.3
-0.18 0.31
-0.31
-0.22
-0.14
-0.02 0.02
-0.14
-0.25
-0.16
-0.06
-0.18
-0.19
-0.01
-0.09
-0.18
-0.22
-0.21
-0.22
-0.09 Plugged Deplugged Deplugged Plugged Deplugged Plugged Plugged Deplugged E
~
t Enclosure PG8 E Letter DCL-00-040 Table 2 Location and Percent Through-Wall of Indications Identified During 1R9 SG Row Column 92 Indication Location 1C Inch 0.09 Status 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 15 10 12 13 15 12 14 15 18 13 19 20 23 17 15 26 27 28 29 17 25 25 26 36 92 92 93 93 93 93 94 10 10 10 12 16 17 17 17 17 17 18 18 41 33 14 15 28 12 18 40 26 35 26 36 36 31 39 14 29 35 28 38 18 SAI SAI 29 SAI SAI SAI SAI SAI SAI SAI 38 1C 1C 1C 1C 1C 1C 2C 2C 1C 1C 1C 2C 2C 2C 1C 1C 2C 2C 1C 1C 1C 1C 1C 1C 2C 2C 2C 2C 1C 2C 2C 6H 1H 2C 2C 2C 2C 3H 1H 1H 2H 3H 3H 6H 2C
-0.09
-0.15 0.03 0.06
-0.25
-0.31 0.06 0.11
-0.03
-0.2
-0.11 0.06 0.03
-0.14 0.09 0.03
-0.14
-0.14
-0.03
-0.14
-0.23
-0.2
-0.09
-0.23
-0.14
-0.06
-0.11
-0.31
-0.14
-0.37
-0.06
-0.05
-0.14
-0.26
-0.17
-0.17
-0.23
-0.05 0.26
-0.23
-0.2
-0.25
-0.27
-0.32 Plugged Plugged Plugged Plugged Deplugged
Enclosure PG8 E Letter DCL-00-040 Table 2 Location and Percent Through-Wall of Indications Identified During 1R9 SG Row Column Indication Location Inch Status 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12
-12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 36 35 35 37
'5 36 38 22 38 36 38 28 25 25 25 38 38 35 27 43 17 24 25 37 43 16 21 21 41 43 22 38 38 22 28 30 44 18 19 19 19 20 20 20 20 21 22 22 23 23 24 25 25 25 25 25 27 27 28 28 28 29 31 31 32 32 32 32 32 33 33 33 33 33 34 34 34 34 35 35 35 35 33 18 29 SAI SAI SAI 41 39 SAI 22 SAI SAI SAI SAI SAI SAI SAI SAI SAI SAI SAI 41 SAI SAI SAI SAI SAI SAI SCI 30 SAI SAI SAI 15 16 15 SAI SAI 45 1C 2C 1C 1C 6H 2H 2H 2C 1C 1H 2C 7H 2C 1H 1H 3H 5H 2C 1C 3H 1H 2H 1H 1H 1H 1H 1C 1H 1H 1H 3H 1C 2H 3H 3H 1C 1C 1H 2H 2H 7H 7H 7H 2H 1H 1C
-0.06
-0.17
-0.29 0.2
-0.05
-0.2
-0.24
-0.3
-0.03
-0.27 62.49
-0.24 0.08
-0.13 0.02 0.09
-0.18
-0.36
-0.11
-0.1
-0.26 0.05 0.04
-0.23
-0.18 0.02 0.04
-0.2 0.1
-0.04
-0.26 0.29 0.24 34.53 65.65 25.49
-0.11 0.09 Plugged Deplugged Deplugged Deplugged Deplugged Deplugged Plugged Plugged Plugged Plugged Deplugged Deplugged Plugged Plugged Plugged Plugged Plugged Plugged Deplugged Plugged
t Enclosure PG&E Letter DCL-00-040 Table 2 Location and Percent Through-Wall of Indications Identified During 1R9 SG Row Column Indication Location Inch Status 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 14 25 19 26 16 38 38 38 38 40 10 14 20 20 20 41 17 33 38 38 38 20 24 38 27 28 32 32 32 41 29 31 34 34 38 38 38 38 39 39 39 26 37 37 39 39 40 40 40 40 40 42 43 43 43 43 43 45 46 47 47 47 47 47 47 47 47 48 48 49 50 50 50 50 50 50 51 51 51 51 51 51 51 51 51 51 52 SAI SAI 19 SAI SAI 38 29 36 23 SAI SAI SAI SAI SAI SAI 17 SAI SAI SAI SAI 16 39 40 38 SAI SAI 32 SAI SAI 23 20 28 12 SAI SAI 36 20 13 18 16 17 10 29 20 SAI 2H 1H 7H 2H 2H 7H 7H 7H 7H 7H 1H 1H 1H 1H 1H 1H 7H 1H 1H 2H 1H 7H 7H 7H 7H 3H 4H 7H 1H 1H 7H 7H 7H 7H 2H 1H 7H 7H 7H 7H 7H 7H 7H 7H 7H 2H 0.04 0.06 48.06 0.05 35.24 66.21 98.48 129 35.81
-0.21 0.16
-0.17
-0.08 0.07
-0.05 106.06
-0.23 0.05
-0.11
-0.11 86.45 66.44 98.52 129.43
-0.08
-0.27 129.77
-0.13 0.05 33.07 57.76 83.69 70.94 0.01
-0.11 88.68 115.3 98.62 98.68 128.59 128.76 36.56 68.46 101.75 0.03 Deplugged Deplugged Deplugged Plugged Plugged Plugged Plugged Plugged Plugged
Enclosure PG&E Letter DCL-00-040 Table 2 Location and Percent Through-Wall of Indications Identified During 1R9 SG 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 Row 35 38 41 38 33 40 40 40 21 21 25 28 32 16 21 22 25 25 32 39 36 37 37 37 45 36 38 38 29 38 21 36 36 39 36 36 36 38 38 39 43 12 16 34 Column 52 52 52 53 53 54 54 54 54 55 55 55 55 55 57 57 57 57 57 57 57 58 58 58 58 58 60 60 60 61 61 61 62 63 63 63 64 64 64 64 64 64 64 65 66 66 Indication SAI 22 SAI 30 33 20 20 26 16 SAI SAI 37 SAI SAI SAI SAI SAI 23 18 14 29 34 20 10 SAI 18 26 SAI SAI SAI SAI 20 33 SAI 28 37 24 23 28 SAI 28 SAI SAI 16 Location 3H 7H 7H 3H 7H 7H 7H 7H 7H 7H 7H 2H 7H 1H 1H 1H 1H 1H 7H 7H 7H 7H 7H 7H 1C 4H 7H 7H 2H 3H 1H 1H 7H 7H 2H 7H 7H 7H 7H 7H 1H 2C 2H 1H 7H Inch
-0.07 66.71 106.64 0.08 129.25 59.43 69.96 104.4 136.78 40.64 57.18 0.18 0.02 83.58
-0.07
-0.06 0.03
-0.05 0.06 58.11 101.5 63.4 34.75 65.13 96.93 0.25 35.44 66.52 0.14
-0.05 0.25 63.6 94.55 0.18 34.95 63.49 94.48 99.08 129.33 0.26
-0.17 0.22 0.06 89.09 Status Plugged Plugged Plugged Deplugged Deplugged Plugged Deplugged Plugged Plugged
Enclosure PG8 E Letter DCL-00-040 Table 2 Location and Percent Through-Wall of Indications Identified During 1R9 SG 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 Row 38 38 38 15 19 19 19 19 19 38 26 26 26 26 33
'36 36 40 35 39 27 39 39 38 38 19 37 13 13 18 29 17 19 26 23 12 13 13 Column 66 66 66 67 67 67 67 67 67 67 68 68 68 68 68 68 68 68 69 69 69 69 70 71 71 71 72 72 74 74 75 75 75 75 77 79 79 79 80 80 82 82 83 84 84 84 Indication 10 24 SAI SAI 22 19 22 20 20 12 18 16 22 29 SAI 23 19 SAI SAI SAI SAI 23 SAI SAI 18 22 16 14 SAI SAI SAI SAI SCI SAI SAI SAI SAI SAI SAI SCI SAI SAI SAI SAI SAI SAI Location 7H 7H 1H 2H 7H 7H 7H 7H 7H 7H 7H 7H 7H 7H 2H 7H 7H 2H 1H 2H 2H 7H 1H 1H 7H 7H 7H 7H 2H 3H 2H 2H 4H 1H 5H 1H 1H 1H 2H 4H 3H 1H 2H 1H 1H 2H Inch 98.75 128.92 0.13 0.05 35.58 37.17 49.9 50.89 61.97 98.27 28.01 46.28 67.86 86.31 0.06 35.6 62.94
-0.11 0.01 0.25
-0.07 131.93 0.04
-0.12 67.76 100.07 65.96 98.03
-0.06 0.01
-0.17 0.05 0.01 0.01
-0.17 0.29 0.29 0.01
-0.17 0.22 0.18 0.16
-0.01
-0.57 0.06 0.23 Status Plugged Plugged Plugged Plugged Plugged Plugged Plugged Plugged Plugged Plugged
Enclosure PG8 E Letter DCL-00-040 Table 2 Location and Percent Through-Wall of Indications Identified During 1R9 SG 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 Row 20 20 20 19 13 15 21 33 41 42 36 23 12 37 40 40 40 31 36 43 33 41 41 43 32 32 34 35 40 40 42 Column 86 87 87 87 87 89 90 91 91 92 92 92 92 92 93 93 94 94 25 27 28 28 31 32 33 34 34 34 34 34 36 36 36 37 37 37 37 38 38 39 41 41 41 41 Indication SAI SAI SAI SAI SAI SAI SAI 38 SAI SAI 20 35 15 18 32 SVI 10 10 SVI 10 23 18 17 12 SAI 12 20 SAI SAI SAI 15 10 25 16 24 28 Location 5H 4H 1H 1H 1H 2C 3H 1H 1C 5H 5H 2C 2C 2C 1C 2C 1C 1C TSC 1C 7H 7H 2C 2C TSH 2C 7H 7H 7H 7H 7H 7H TSH 7H 2C TSH 2H 2H 2C 7H 7H 7H 7H 7H 7H 7H Inch
-0.27
-0.04
-0.1 0.04 0.11
-0.23
-0.14 0.21
-0.15
-0.03 0.19
-0.17
-0.06
-0.06
-0.32
-0.12 0.12
-0.3 18.61
-0.24 39.59 86.5
-0.25
-0.2 0.27
-0.2 42.92 31.73 97.03 68.24 103.98 134.26
-2.79 62.23
-0.2
-5.8 0.08
-0.17 32.04 56.88 33.01 61.41 103.91 134 109.31 Status Plugged Plugged Deplugged Deplugged Deplugged Plugged Plugged Plugged Plugged Plugged
I Enclosure PG8 E Letter DCL-00-040 Table 2 Location and Percent Through-Wall of Indications Identified During 1R9 SG Row Column Indication Location Inch Status 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 45 28 28 29 30 37 37 37 38 39 39 39 35 35 31 37 41 41 41 28 28 39 41 41 36 28 28 33 33 33 33 36 36 36 33 35 36 30 30 43 45 45 45 45 45 45 45 45 45 46 48 48 49 50 50 50 50 52 52 52 52 52 55 55 55 56 56 56 56 56 56 56 56 56 56 56 56 56 56 57 57 57 58 58 15 SAI 35 24 18 12 10 SAI 15 12 34 15 15 22 12 12 10 10 SAI SAI 10 SAI SAI SAI SAI SAI 10 31 25 36 29 21 26 16 19 15 16 27 19 2C 7H 7H 7H TSH 7H 7H 7H 7H 7H 7H TSH 7H 7H 7H 7H 7H 7H 7H 7H 7H 7H 7H 7H 1H 1H 7H 1H 2H 6H 6H 6H 7H 7H 7H 7H 7H 7H 7H 7H 7H 7H 7H 7H 7H 7H
-0.09 51.06 72.93 75.15
-2.06 64.72 96.86 124.31 99.11 67.68 102.34
-2.32 61.72 91.46 54.52 64.04 70 105.93 137.48 72.9 50.33 67.17 106.3 70.47
-0.02
-0.02 62.57
-0.16
-0.06
-0.11
-0.07
-0.05 50.7 73.34 33.59 111.02 86.3 58.24 93.64 62.55 121.87 57.65 60.88 93.11 78.2 29.94 Depiugged Deplugged Deplugged Deplugged Deplugged Deplugged Deplugged
a Enclosure PG8 E Letter DCL-00-040 Table 2 Location and Percent Through-Wall of Indications Identified During 1R9 SG Row Column Indication Location Inch Status 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 30 30 34 34 37 37 37 33 36 43 15 32 32 32 36 36 36 41 40 41 41 15 33 33 43 43 39 34 35 37 37 37 39 37 37 10 10 58 58 58 58 58 58 58 59 59 59 60 61 61 61 61 61 61 61 61 61 61 61 63 63 63 63 64 64 64 64 65 66 66 66 68 68 68 68 69 69 70 70 70 70 71 71 32 17 17 34 24 37 17 12 SVI SAI SAI SAI SAI 20 33 16 20 30 29 SAI 13 SAI SAI 12 15 14 35 SVI SAI SAI 24 13 22 27 10 SAI SAI 20 SAI SAI 7H 7H 7H 7H 7H 7H
'7H 7H 7H 7H TSH 1H 1H 1H 2H 7H 7H 7H 7H 7H 7H 7H 4H 7H 2H 2H 7H 7H 7H 1C 2C 1H 1H 7H 7H 7H 7H 7H 7H 7H 3H 5H 7H 7H 1H 3H 52.96 100.87 59.44 88.18 64.49 96.17 124.55 143.21 93.36 110.97 0.21
-0.05
-0.01 0.1
-0.02 56.52 83.17 33.33 121 93.95 62.24 69.41
-0.08 134.39
-0.11 0.09 41.01 57.74 32.39
-0.22
-0.36 0.02 130.66 59.91 116.33 95 64.58 95 67.63
-0.15
-0.01 64.7 94.67 0.01
-0.17 Plugged Deplugged Deplugged Deplugged Deplugged Plugged Deplugged Deplugged Depiugged Deplugged
e Enclosure PG8 E Letter DCL-00-040 Table 2 Location and Percent Through-Wall of Indications Identified During 1R9 SG Row Column Indication Location Inch Status 13 13 13 13 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 37 34 23 19 17 18 19 23 27 27 28 24 12 33 34 33 35 36 35 35 38 35 26 38 17 20 33 27 29 29 29 31 31 31 44 27 75 78 82 88 12 12 12 13 14 16 16 18 18 18 19 20 21 21 22 23 23 24 25 33 34 34 34 34 34 34 34 34 36 10 20 43 29 10 20 14 SAI 12 20 41 SAI SAI 23 SAI 15 27 13 SAI 29 SVI 19 39 21 25 25 10 SVI 37 SAI SAI 12 SAI 17 19 28 22 18 27 23 SAI 2C 2C 7H 1C 2C 2C 2C 1C 2C 2C 3H 2C 2C 2C TSH 3H 2C TSH 2C 2C 2C 3H 2C 2C 2C 2C 1C 2C 2C 2C 2C 2C 2H 2C 1H 1H 7H 1H 7H 7H 7H 7H 7H 7H 2C 4H
-0.31
-0.26 43.43 0.06
-0.21
-0.29
-0.09
-0.21
-0.21 0.09
-0.02
-0.12
-0.06
-0.18
-8
-0.13
-0.12
-0.72
-0.09
-0.09
-0.21
-0.02
-0.19
-0.27
-0.29
-0.22 0.11
-0.22
-0.17
-0.17
-0.19
-0.11
-0.19
-0.22 0.33
-0.67 109.58
-0.08 75.05 31.84 95.58 53.21 102.15 79.82
-0.22
-0.12 Plugged Deplugged Plugged Plugged Plugged Plugged
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Enclosure PG8 E Letter DCL-00-040 Table 2 Location and Percent Through-Wall of Indications Identified During 1R9 SG 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 Row 32 32 35 43 42 42 42
.31 31 46 32 35 36 43 39 28 28 28 28 36 36 36 33 35 37 37 37 37 31 31 26 35 43 43 28 28 36 36 43 43 44 35 35 35 Column 36 36 36 37 40 40 40 42 42 42 43 44 46 46 48 51 51 51 51 52 52 52 53 53 53 53 53 53 53 55 55 56 56 56 56 56 57 57 57 57 57 57 57 58 58 58 Indication 27 13 SAI 14 25 SVI 20 14 SAI 23 31 26 10 SAI 17 38 18 17 29 37 24 12 28 15 13 24 35 14 20 24 19 SAI 33 37 25 SAI SAI 19 13 30 30 35 17 Location 7H 7H 2H 7H 7H 7H TSH 7H 7H 1H 7H 7H 7H 3H 7H 7H 7H 7H 7H 7H 7H 7H 7H 7H 7H 7H 7H 7H 7H 7H 7H 3H 7H 7H 7H TSH TSH 7H 7H 7H 7H 2C 7H 7H 7H Inch 55.99 34.79 0.27 72.55 39.82 71.65 0.23 35.87 56.59
-0.09 103 37.49 119.38 143.55 0.16 50.81 71.44 34.25 52.83 62.9 91.65 123.9 34.99 60.58 121.64 63.71 37.42 94.76 127.49 54.6 79.14 87.58 0.07 110.17 145.86 146.28
-6.59
-2.75 33.93 61.48 145.58 110.54
-0.06 60.13 90.07 32.97 Status Deplugged Plugged Plugged Plugged Deplugged
Enclosure PG8 E Letter DCL-00-040 Table 2-Location and Percent Through-Wall of Indications Identified During 1R9 SG Row Column Indication Location Inch Status 14 14 39 39 58 58 27 14 7H 7H 101.13 Deplugged 133.45 Deplugged 14 39 58 12 7H 36.81 Deplugged 14 39 58 SAI TSH
-6.44 Deplugged 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 39 44 45 45 36 43 36 36 36 36 42 38 40 40 41 14 31 40 40 35 35 35 43 16 16 35 35 35 37 37 37 31 31 35 31 21 21 58 58 58 58 59 61 61 61 61 61 62 63 63 63 64 64 64 64 65 65 65 65 66 66 66 66 66 66 66 66 67 67 68 72 76 84 86 89 91 92 SAI 31 22 12 12 22 23 36 24 30 20 15 SVI 12 23 33 15 27 19 31 SAI SAI 25 16 21 15 10 19 12 SAI 13 SAI SAI SAI SAI SVI 13 1H 7H 2C 7H 7H 7H 7H 7H 7H 7H 7H
~
7H 7H 7H 7H TSH 7H 7H 7H 7H 7H 7H 7H 1H 1H 7H 7H 7H 7H 7H 7H 7H 7H 3H 7H 1H 1H 1H 1H TSH 1C 0.22 74.25
-0.19 115.81 93.32 110.49 123.81 122.73 61.38 92.58 70.8 130.02 103.02 68.36 105.43 3.66 53.28 68.2 103.3 36.46 59.97 90.16 109.82
-0.12 0.03 60.08 36;42 90.16 63.62 95.49 37:73 80.29 107.3
-0.13 106.96
-0.11 0.07 0.21 0.28 20.2
-0.24 Deplugged Plugged Deplugged Deplugged Deplugged Plugged
0
~ 4, Enclosure PG8 E Letter DCL-00-040 Figure 1 SG Eddy Current Location Code Definitions 7H 7C 6H 6C 5H 5C 4C 3C 2H 2C 1H ITH TSH TEH C
1C TSC TEC 2AV 3AY 1AV 4AV TEH Tube End HL (Hot Leg)
TSH Top of Tube Sheet HL ITH Implant Top Hot (applies to 16 tubes in SG 1-1 only) 1H 1st TSP (Tube Support Plate) HL 2H 2nd TSP HL 3H -3rd TSP HL 4H-401 TSP HL 5H 501 TSP HL 6H 6th TSP HL 7H 701 TSP HL 1AV1st AVB(Anti-Vibration Bar) 2AV2nd AVB 3AV3rd AVB 4AV401 AVB 7C 7th TSP CL (Cold Leg) 6C 6th TSP CL 5C 501 TSP CL 4C -401 TSP CL 3C 3rd TSP CL 2C 2nd TSP CL 1C 1st TSP CL TSC Top of Tube Sheet CL TEC Tube End CL t
~
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Pacific Gas and Electric Company December 15, 1999 PGB E Letter DCL-99-161 Lawrence F. Womack Vice President Nuclear Technical Services Diablo Canyon Power Plant PO. Box 56 Avila Beach, CA 93424 605.545.6000 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001 Docket No. 50-275, OL-DPR-80 Docket No. 50-323, OL-DPR-82 Diablo Canyon Units 1 and 2 S ecialRe ort99-05 Su lement1 Emer enc Res onseDataS stem ERDS Data Point Libra U
rade
Dear Commissioners and Staff:
As requested by NRC's letter requesting supplemental data dated September 20, 1999, and clarification from ERDS Project Officer, Mr. John Jolicoeur, per teleconference on October 7, 1999, this supplement to Special Report 99-05 is submitted to provide additional information regarding data points provided via PGB E Letter DCL-99-086, dated June 18, 1999.
The ERDS system was installed as documented in PGBE Letter No. DCL-91-261, "Emergency Response Data System Implementation Plan," dated October 25, 1991.
The Safety Parameter Display System (SPDS) system was installed in response to NUREG-0737, Action Plan Item I.D.2, and NUREG-0696 (circa 1980).
PG&E upgraded the SPDS computer system during 1996 (reference DCL-98-1 36, "10 CFR 50.59 Report of Facility Changes, Tests, and Experiments for the Report Period May 24, 1996-March 28, 1998"). The upgraded SPDS is Y2Kcompliant and has been further enhanced to provide the ERDS function. PGBE has enhanced the data points requested in NUREG-1394, Revision 1, dated May 1991, with clarification provided by the ERDS Project Officer, as "ERDS Data Point Library, Revision 2," enclosed.
Sincerely, Lawrence F. Womack Enclosure cc:
Steven D. Bloom John Jolicoeur, ERDS Project Officer (w/enclosure)
Ellis W. Merschoff David L. Proulx NRC Operation Center
0
Distribution Sheet Distri61.txt Priority: Normal From: Stefanie Fountain Action Recipients:
S Bloom Copies:
1 Not Found Internal Recipients:
RGN 4.FILE
'GN 4.ERC IRO FILE CENTE ACR 1
Not Found 1
Not Found 1
Not Found 1
Not Found Not Found External Recipients:
NRC PDR Not Found Total Copies:
7 Item: ADAMS Document
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Library: ML ADAMS"HQNTAD01 ID: 993550141
Subject:
Special Report 99-05, Supplement 1, Emergency Response Data System (ERDS) Data P oint Library Upgrade Body:
PDR ADOCK 05000275 F Docket: 05000275, Notes: N/A Docket: 05000323, Notes: N/A Page 1
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k Distribution Sheet Distri39.txt Priority: Normal From: Elaine Walker Action Recipients:
S Bloom NRR/DLPM/LPD4-2 Copies:
Not Found 1
Not Found Internal Recipients:
RGN 4 FILE 01 RES/DRAA/OERAB RES/DET/ERAB NRR/DSSA/SPLB NRR/DRIP/REXB NRR/DIPM/IOLB CE ACRS 1
1 Not Found Not Found Not Found Not Found Not Found Not Found Not Found Not Found External Recipients:
NRC PDR NOAC QUEENER,DS NOAC POORE,W.
L ST LOBBYWARD internet: smittw@inel.gov INEEL Marshall Not Found Not Found Not Found Not Found Not Found Not Found Total Copies:
16 Item: ADAMS Document Library: ML ADAMS"HQNTAD01 ID'93240466
Subject:
Special Report 99-06 Re Emergency Diesel Generator 2-1 Valid Failure. The Voltage Reg ulator Power Transformer Was Replaced.
Body:
PDR ADOCK 05000275 S Page 1
Docket: 05000275, Notes: N/A Distri39.txt Page 2
t' l,
Pacific Gas and Electric Company November 9, 1999 E
PGB E Letter DCL-99-138 David H. Oatley Vice President-Diablo Canyon Operations and Plant Manager Diablo Canyon Power Plant PO. Box 56 Avila Beach, CA 93424 605.545.6000 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Docket No 50-275, OL-DPR-80 Diablo Canyon Unit 2 S ecial Re ort 99-06 Emer enc Diesel Generator 2-1 Valid Failure
Dear Commissioners and Staff:
Pursuant to the special reporting requirements of Diablo Canyon Power Plant Technical Specification (TS) 4.8.1.1.4, and NRC Regulatory Guide (RG) 1.108, Revision 1, PGKE is submitting this special report regarding failure of Emergency Diesel Generator (EDG) 2-1 to complete the 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> loaded run due to an
'vercurrent trip.
Using the guidance of RG 1.108, Sections 8 and C.2.e, this event is considered to be a valid failure. At the time of the failure, Unit 2 was in a refueling outage with the core offloaded.
EDG 2-2 remained operable; therefore, the requirements of TS limitingconditions for operation were satisfied.
In accordance with RG 1.108, Section C.3.b, the following information is provided:
1.
Diesel generator involved: EDG 2-1 2.
Number of valid failures in last 100 EDG 2-1 valid tests:
1 3.
Cause of failure: The voltage regulator power transformer failed.
4.
Corrective measures taken: The voltage regulator power transformer was replaced.
Length of time the EDG was unavailable:
EDG 2-1 was not required to be available at the time of the failure. Unit 2 was in a refueling outage with the core in the spent fuel pool. EDG 2-1 had maintenance performed and was being tested prior to being declared operable.
EDG 2-1 was repaired and returned to operable status prior to Unit 2 entering Mode 4 (Hot Shutdown).
Document Control Des November 9, 1999 Page 2 PG8 Letter DCL-99-138 6.
Current surveillance test interval:
31 days 7.
Confirmation of proper test interval: This is the first failure of EDG 2-1 in the last 100 valid,tests.
Per TS Table 4.8-1, the test interval should be 31 days.
This event was not considered risk significant and could not have adversely affected the health and safety of the public.
Sincerely, David H. Oatley cc:
Steven D. Bloom Ellis W. Merschoff David L. Proulx Diablo Distribution INPO LMP/2245/A0494079
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