RNP-RA/02-0174, October 2002 Monthly Operating Report for H B Robinson Unit 2

October 2002 Monthly Operating Report for H B Robinson Unit 2

ML023220203
Person / Time
Site:	Robinson
Issue date:	11/14/2002
From:	Baucom C Carolina Power & Light Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
RNP-RA/02-0174
Download: ML023220203 (10)

Text

TS 5.6.4 TRM 6.2 CP&L AProgres Energy Corrpany TS 5.6.8 Serial: RNP-RA/02-0174 NOV 1 4 2002 United States Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO. 2 DOCKET NO. 50-261/LICENSE NO. DPR-23 MONTHLY OPERATING REPORT Ladies and Gentlemen:

In accordance with the H. B. Robinson Steam Electric Plant (HBRSEP), Unit No. 2, Technical Specifications (TS) Section 5.6.4, "Monthly Operating Reports," and HBRSEP, Unit No. 2, Technical Requirements Manual (TRM) Section 6.2, "Monthly Operating Report," Carolina Power & Light Company submits the enclosed report of operating statistics and shutdown experience for the month of October 2002.

Attachment I provides the Monthly Operating Report in accordance with TS Section 5.6.4 and TRM 6.2. Attachment I[ provides the Steam Generator Tube Inspection Report information required by TS Section 5.6.8.b.

If you have any questions concerning this matter, please contact me.

Sincerely, C. T. Baucom Supervisor - Licensing/Regulatory Programs Robinson Nuclear Plant 3581 West Entrance Road Hartsville, SC 29550

United States Nuclear Regulatory Commission Serial: RNP-RA/02-0174 Page 2 of 2 CAC/cac Attachments I. Monthly Operating Report II. Steam Generator Tube Inspection Report c: NRC Resident Inspector, HBRSEP L. A. Reyes, NRC, Region II R. Subbaratnam, NRC, NRR

Attachment I to Serial: RNP-RAI02-0174 Page 1 of 2 MONTHLY OPERATING REPORT DOCKET NO. 050-0261 UNIT H. B. ROBINSON STEAM ELECTRIC PLANT (HBRSEP), UNIT NO. 2 DATE 11/01/02 COMPLETED BY TOM FREEMAN TELEPHONE (843) 857-1403 REPORTING PERIOD: OCTOBER 2002

1. DESIGN ELECTRICAL RATING (NET MWE): 700.0

2. MAX DEPENDABLE CAPACITY (NET MWE): 683.0 THIS YR TO CUMULATIVE MONTH DATE

3. NUMBER OF HOURS REACTOR CRITICAL 264.00 6815.00 210622.59

4. HOURS GENERATOR ON LINE 264.00 6815.00 207333.26

5. UNIT RESERVE SHUTDOWN HOURS 0.00 0.00 23.20

6. NET ELEC. ENERGY GENERATED (MWH) 174514.00 4783565.00 135114914.00

Attachment I to Serial: RNP-RA/02-0174 Page 2 of 2 DOCKET NO. 050-0261 UNIT NAME HBRSEP, UNIT NO. 2 DATE 11/01/02 COMPLETED BY TOM FREEMAN TELEPHONE (843) 857-1403 REPORTING PERIOD: OCTOBER 2002 No. Date Type Duration Reason' Method of Shutting Down Cause / Corrective Actions / Comments 2

F Forced (Hours) the Reactor or Reducing Power S, Scheduled 02.005 10/11/02 S 481 C 1 Shutdown for Refueling Outage 21.

2 Reason: Method:

A-Equipment Failure (Explain) 1-Manual B-Maintenance or Test 2-Manual Scram C-Refueling 3-Automatic Scram D-Regulatory Restriction 4-Continuation E-Operator Training & License Examination 5-Other (Explain)

F-Administrative G-Operational Error (Explain)

H-Other (Explain)

SUMMARY

The unit was operated at or near full power until 2200 hours0.0255 days <br />0.611 hours <br />0.00364 weeks <br />8.371e-4 months <br /> on October 11, 2002, when the unit power reduction was started for Refueling Outage 21.

There were no challenges to the pressurizer safety valves during the month.

Attachment II to Serial: RNP-RA/02-0174 Page 1 of 6 STEAM GENERATOR TUBE INSPECTION REPORT This report summarizes the Steam Generator (SG) Inspection Program and the results of the examination that was performed at the H. B. Robinson Steam Electric Plant (HBRSEP), Unit No. 2, during Refueling Outage (RO) 21, as required by the HBRSEP, Unit No. 2, Technical Specifications Section 5.6.8, "Steam Generator Tube Inspection Report."

1. Number and Extent of Tubes Inspected The SG Inspection Program included the use of multi-frequency Bobbin Coil, and Motorized Rotating Pancake Coil or Plus Point Coil (RPC) probes. RPC examinations were performed in SGs A, B, and C on approximately 20% of the inlet (hot leg) side historical manufacturing buff marks, dents, and on suspect bobbin indications (diagnostics). RPC examinations were also performed on 50% of the u-bend region of row 1 and 2. SGs A, B, and C had approximately 50% of open tubes tested with a Bobbin Coil probe, and 50% of the hot leg top-of-tubesheet (T'FS) area tested with RPC probes.

SG - -- Inspection Number Of Tubes A Cold Leg RPC Special Interest 46 A Cold Leg Bobbin 1871 A Hot Leg Bobbin Rows 1 and 2 93 A Hot Leg RPC Special Interest 111 A Hot Leg RPC Top of Tubesheet 1313 A Hot Leg RPC Rows l and 2 U-bend RPC 93 B Cold Leg RPC Special Interest 25 B Cold Leg Bobbin 1806 B Cold Leg RPC Rows 1 and 2 U-bend RPC 30 B Hot Leg Bobbin Rows 1 and 2 139 B Hot Leg RPC Special Interest 107 B Hot Leg RPC Top of Tubesheet 1522 B Hot Leg RPC Rows 1 and 2 U-bend RPC 65 C Cold Leg RPC Special Interest 20 C Cold Leg Bobbin 1709 C Hot Leg Bobbin Rows 1 and 2 133 C Hot Leg RPC Special Interest 57 C Hot Leg RPC Top of Tubesheet 1522 C Hot Leg RPC Rows 1 and 2 U-bend RPC 84

Attachment II to Serial: RNP-RA/02-0174 Page 2 of 6

2. Location and Wall Thickness Penetration Location definitions:

CTS Cold leg top-of-tubesheet HTS Hot leg top-of-tubesheet FBH Flow distribution baffle on hot leg side 02A Anti-vibration bar 2 03A Anti-vibration bar 3 04A Anti-vibration bar 4 02C Cold leg second support plate 02H Hot leg second support plate 03C Cold leg third support plate 03H Hot leg third support plate 06C Cold leg sixth support plate 06H Hot leg sixth support plate Tube Identification SG (Row and Column) Location  % Depth A R37C50 HTS/0.04 41 A R38C50 HTS/0.07 41 A R37C51 HTS/0.04 37 A R4C39 03C/-0.88 37 A R23C14 HTS/0.05 26 A R33C41 HTS/0.04 26 A R34C41 HTS/0.13 25 A R41C53 HTS/0.08 29 A R15C35 02C/+51.00 20 A R24C54 03H1/-0.75 20 A RICI CTS/13.72 10 A R7C1 CTS/0.68 14 A R1C2 CTS/13.74 11 A R11C2 CTS/0.55 11 A R1C3 CTS/15.66 13 A R13C3 CTS/0.48 12 A R1C4 CTS/15.78 20 A R16C4 CTS/0.41 10 A R1C5 CTS/15.54 7 A RlC6 CTS/15.57 11 A R23C7 CTS/0.71 11 A R26C9 CTS/0.62 13 A R33C15 CTS/0.54 9 A R37C20 HTS/0.64 15

Attachment II to Serial: RNP-RAIO2-0174 Page 3 of 6 Tube Identification SG (Row and Column) Locaton %Depth A R40C25 CTS/O.47 14 A R42C30 CTS/O.47 13

____________HTS/O.62 11 A R43C33 CTS/0.56 10 A R44C36 CTSIO.60 14 A R43C37 CTS/0.55 10

____________CTS/1.75 10 A R45C41 CTSIO.62 19 A R45C47 CTSI2.74 13

____________CTS/6.74 11 A R45C52 CTSIO.49 17

_____________CTS/3.72 8 A R44C57 CTSIO.59 21 HTS/O.70 12

____________HTS/1.20 14 A R43C60 CTSIO.56 17 A R42C63 CTS/0.61 11I

_____________HTS/0.66 13 A R40C68 HTS/O.68 16

_____________HTS/O.75 15 A R36C74 HTS/O.64 12 A R31C80 CTSIO.55 I11 A R26C84 CTS/0.61 13 A R23C86 CTS/0.62 13 A R19C87 CTSI7.62 12 A RIC89 HTS/15.54 13 A R11C91 CTS/0.67 12 A R7C92 CTSIO.61 9 B RICI CTSI9.62 15 CTS/12.71 18 CTSI12.75 16 CTS/13.10 25

___ ___________CTSI15.26 16 B R2C1 CTS/10.07 17

_____________CTS/1 1.52 16 B R6C1 CTS/0.49 15 B R7CI CTSIO.63 14 CTSI1.14 15 CTS/12.47 19 B R11C2 CTS/0.48 17 B R16C4 CTS/0.44 15 B R23C7 HTS/O.94 16

Attachment IRto Serial: RNP-RA/02-O 174 Page 4 of 6 Tube Identification

,SG (Row and Column) Location  % Depth B R26C9 HTS/0.54 17 B R7C16 CTSI15.94 17 B R34C18 FBHIO.60 20 B R37C20 HTS/0.60 20 B R40C25 CTSIO.51 21 B RIC27 CTSI16.33 41 B R2C42 CTSI1.50 24 B R34C43 HTS/0.O1 20 B R5C48 CTS/1.46 22

____________CTSI1.71 27 B R5C49 CTSI1.78 28 B R24C65 02H10.36 30 B R1C67 06C1-0.53 22 06C/-0.62 10

_____________06C/0.56 7 B R33C78 CTSIO.62 18 B R26C84 CTSIO.69 20 B RIC92 CTSI8.55 15 CTSI9.62 16 CTSI1O.92 24 CTSI1O.92 16 CTSI1 1.86 16 HTS/1.94 13 HTS/2.82 17

____________HTS/14.12 14 B R2C92 CTS/10.66 15 C R45C41 06H1-0.98 50 C R7C1 CTSIO.64 15 C R44C38 HTS/0.48 16 C R34C50 HTS/-0.03 14 C R34C5 1 HTS/0.05 7 C R44C57 HTS/0.58 16

_____________HTSI1.18 15 C R33C78 HTFS/0.66 18 C R3C91 HTS/0.32 23 C R37C45 03A/0.0 6 04A/0.0 4 03A/0. 15 6 04A/0.02 4 C R35C61 02A/-0.21 5

___ __ __ __ __ __ I_ 03A/0. 13 3 I to Serial: RNP-RAI02-0174 Page 5 of 6 Tube Identification SG (Row-and Column) Location-  %-Depth' C R38C62 02A/-0.23 3 03A/-0.31 11 C R31C13 06C/-0.44 5 06C/+0.63 6 The facility had zero primary-to-secondary leakage at the time the refueling outage was commenced.

3. Identification of Tubes Plugged Steam Generator., ,Tube 4Comments - '

A R37C50 Wear is at top of tubesheet at hot leg side due to transient loose part. No loose part was determined to be present. This tube was last examined during Refueling Outage (RO) 19 in 1999 and there has been a slight change in the indication. The indication depth is below plugging limit required by the Technical Specifications. The indication was bounded by inspection of the surrounding tubes.

The tube was preventatively plugged.

A R38C50 Wear is at top of tubesheet at hot leg side due to transient loose part. No loose part was determined to be present. This tube was last examined in 1999 (RO-19) and there has been a slight change in the indication. The indication depth is below plugging limit required by the Technical Specifications. The indication was bounded by inspection of the surrounding tubes. The tube was preventatively plugged.

A R37C51 Wear is at top of tubesheet at hot leg side due to transient loose part. No loose part was determined to be present. This tube was last examined in 1996 (RO-17) and there was no indication present.

The indication depth is below plugging limit required by the Technical Specifications. The indication was bounded by inspection of the surrounding tubes. The tube was preventatively plugged.

Attachment II to Serial: RNP-RAI02-0174 Page 6 of 6

- Steam' Generator J Tube Comments A R4C39 Indication is attributed to mechanical wear. No loose part was determined to be present. This tube was last examined in 1996 (RO-17) and there was no indication present. The indication depth is below plugging limit required by the Technical Specifications.

The tube was preventatively plugged.

B R1C27 Peripheral tube in blowdown lane with mechanical wear. The cause of this indication was attributed to impact by maintenance equipment. The indication correlates with equipment insertion down the blowdown lane. The indication depth is below plugging limit required by the Technical Specifications. The tube was preventatively plugged.

B R34C43 Indication is attributed to wear due to loose part. The loose part was determined to be still present. The indication was bounded by examining surrounding tubes, with no other indications found. The indication depth is below plugging limit required by the Technical Specifications. The tube was preventatively plugged and staked.

B R24C65 Indication is attributed to wear at the flow distribution baffle on hot leg side. No loose part was determined to be present. This tube was last examined in 1998 (RO-18) and there was no indication present. The indication depth is below plugging limit required by the Technical Specifications. The tube was preventatively plugged.

C R45C41 Wear is below the 6h support plate on the hot leg side and is indicative of transient loose part wear. No loose part was determined to be present. This tube was last examined in 2001 (RO-20) and there was no indication present. Adjacent tubes were examined, with no indications or loose parts found.