View source for DCL-03-038, March 2003 Monthly Operating Report for Diablo Canyon Units 1 & 2

{{Adams
| number = ML031130453
| issue date = 04/15/2003
| title = March 2003 Monthly Operating Report for Diablo Canyon Units 1 & 2
| author name = Becker J
| author affiliation = Pacific Gas &amp; Electric Co
| addressee name = 
| addressee affiliation = NRC/Document Control Desk, NRC/NRR
| docket = 05000275, 05000323
| license number = DPR-080, DPR-082
| contact person = 
| case reference number = DCL-03-038, GL-97-002
| document type = License-Monthly Operating Report
| page count = 6
}}

=Text=
{{#Wiki_filter:Pacific Gas and Electric Company James R.Becker                  Diablo Canyon Power Plant Vice President-Diablo Canyon    P0 Box 56 Operations and Station Director Avila Beach, CA 93424 805 545 3462 April 15, 2003                                                                                           Fax 805 545 4234 PG&E Letter DCL-03-038 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Docket No. 50-275, OL-DPR-80 Docket No. 50-323, OL-DPR-82 Diablo Canyon Units 1 and 2 Monthly Operating Report for March 2003

==Dear Commissioners and Staff:==

Attached is the Monthly Operating Report for Diablo Canyon Power Plant, Units 1 and 2, for March 2003. This report is submitted in accordance with Technical Specification 5.6.4 and NRC Generic Letter 97-02.
Sincerely, James R.           ker LMP/1713/R0244430 Enclosures cc/enc:        Paul R. Fox, American Nuclear Insurers Robert D. Glynn, Jr.
Ellis W. Merschoff, NRC Regional Administrator, Region IV David L. Prouix, NRC Senior Resident Inspector Gregory M. Rueger Girija S. Shukla, NRC Project Manager INPO Record Center A member of the STARS   (Strategic Teaming and Resource Sharing) Alliance Callaway
* Comanche Peak
* Diablo Canyon
* Palo Verde
* South Texas Project
* Wolf Creek O

Enclosure 1 PG&E Letter DCL-03-038 MARCH 2003, OPERATION SUMMARIES DIABLO CANYON POWER PLANT UNITS 1 AND 2 Summary of Unit 1 Operation Unit 1 began March in Mode 1 (Power Operation) at approximately 100 percent power.
There were no significant operational activities.
Summary of Unit 2 Operation Unit 2 began March in Mode 6 (Refueling), continuing the refueling outage (2R1 1) that began on February 3, 2003. On March 17, 2003, with Unit 2 in Mode 3 (Hot Standby),
during testing of the digital rod position indication (DRPI), operators manually tripped the reactor due to a mismatch in control rod position indication. On March 24, 2003, operators entered Mode 2 (Startup) and took the reactor critical. On March 26, 2003, operators entered Mode 1 and paralleled Unit 2 to the grid, thus completing the refueling outage. On March 28, 2003, with Unit 2 at approximately 48 percent power, operators initiated an unplanned shutdown to Mode 3 in order to replace a faulty nuclear instrument (NI-42). On March 29, 2003, after replacing and testing NI-42, operators entered Mode 2 and took the reactor critical. On March 30, 2003, operators paralleled Unit 2 to the grid.
Unit 2 ended the month at approximately 44 percent power.
Actuations of Safety or Pressurizer Power Operated Relief Valves There were no challenges to the pressurizer power operated relief valves, pressurizer safety valves, or steam generator safety valves.

Enclosure 2 PG&E Letter DCL-03-038 OPERATING DATA REPORT DOCKET NO.:           50-275 UNIT NAME:            Diablo Canyon Unit 1 DATE:                 04/04/2003 COMPLETED BY:         L. M. Parker TELEPHONE:            (805) 545-3386 REPORT MONTH: March 2003 I 1. I Design Electrical Rating (MWe - Net):        l 1,103 l
: 2. Maximum Dependable Caacity Mwe - Net:          1,087 V            T This Month      YTD        Cumulative
: 3. Number of Hours Reactor Critical:            744.0     2,160.0      136,386.8
: 4. Number of Hours Generator On-Line:           744.0     2,160.0      134,869.6
: 5. Unit Reserve Shutdown Hours:                   0.0          0.0            0.0
: 6. Net Electrical Energy Generated (MWH):     821,069   2,386,901    139,593,200 1

Enclosure 2 PG&E Letter DCL-03-038 UNIT SHUTDOWNS DOCKET NO.:            50-275 UNIT NAME:             Diablo Canyon Unit 1 DATE:                  04/04/2003 COMPLETED BY:          L. M. Parker TELEPHONE:             (805) 545-3386 REPORT MONTH: March 2003 NO. DATE       TYPE        DURATION    REASON1     METHOD        CAUSE & CORRECTIVE (YM)F      (Forced)
S (Scheduled)  (HOURS)                    OF SHUTTING              ACTIONS COMMENTS DOWN 2            CMET N/AThere                                                                  were no shutdowns this month.
: 1. Reason                                     2. Method A-Equipment Failure (Explain)                  1-Manual B-Maintenance or Test                          2-Manual Trip/Scram C-Refueling                                    3-Automatic Trip/Scram D-Regulatory Restriction                      4-Continuation from Previous Month E-Operator Training/License Examination        5-Other F- Administrative G-Operational Error (Explain)
H-Other (Explain) 2

Enclosure 2 PG&E Letter DCL-03-038 OPERATING DATA REPORT DOCKET NO.:           50-323 UNIT NAME:            Diablo Canyon Unit 2 DATE:                 04/04/2003 COMPLETED BY:         L. M. Parker TELEPHONE:            (805) 545-3386 REPORT MONTH: March 2003 I 1. I Design Electrical Rating (MWe - Net):         I 1119 I
: 2. l Maximum Dependable Capacity (MWe - Net):      l 1087 l This Month   YTD         Cumulative
: 3. Number of Hours Reactor Critical:           145.0     942.4      132,300.9
: 4. Number of Hours Generator On-Line:          103.1     900.0      130,787.9
: 5. Unit Reserve Shutdown Hours:                  0.0        0.0            0.0
: 6. Net Electrical Energy Generated (MWH):     35,145   896,103    137,588,093 3

Enclosure 2 PG&E Letter DCL-03-038 UNIT SHUTDOWNS DOCKET NO.:             50-323 UNIT NAME:              Diablo Canyon Unit 2 DATE:                   04/04/2003 COMPLETED BY:           L. M. Parker TELEPHONE:              (805) 545-3386 REPORT MONTH: March 2003 NO.      DATE       TYPE        DURATION    REASON1     METHOD        CAUSE & CORRECTIVE (YYMMDD)     F(Forced)
S (Scheduled)
(HOURS)               SUTN OF                ACTIONS SHUTTNG2             COMMENTS 1     030203           S          608.4        C           4         Refueling Outage 11 2     030328           F           32.5        A            1        Nuclear Instrumentation (Nl-42) (power range) failed. This maintenance could not be performed in Modes 1 or 2. The NI was replaced while shutdown in Mode 3 and the unit was then returned to service.
: 1. Reason                                        2. Method A-Equipment Failure (Explain)                    1-Manual B-Maintenance or Test                            2-Manual Trip/Scram C-Refueling                                      3-Automatic Trip/Scram D-Regulatory Restriction                         4-Continuation from Previous Month E-Operator Training/License Examination          5-Other F- Administrative G-Operational Error (Explain)
H-Other (Explain) 4}}