HL-5766, Monthly Operating Repts for Mar 1999 for Ei Hatch Nuclear Plant,Units 1 & 2.With

Monthly Operating Repts for Mar 1999 for Ei Hatch Nuclear Plant,Units 1 & 2.With

ML20205N179
Person / Time
Site:	Hatch
Issue date:	03/31/1999
From:	Shannon Rogers, Sumner H SOUTHERN NUCLEAR OPERATING CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
HL-5766, NUDOCS 9904160177
Download: ML20205N179 (7)

Text

Lewis Sumarr Southsrn Nucizar Vice President Opsrating Comp 2ny,Inc.

Hatch Project Support 40 invemess Parkway Post Office Box 1295 Birmingham. Alabama 35201 Tel 205 992.7279 Fax 205 992.0341 SOUTHERN L COMPANY Energy to Serve uur World" April 8, 1999 Docket Nos. 50-321 50-366 HL-5766 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555 Edwin 1. Hatch Nuclear Plant hionthlv Operating Reports Ladies and Gentlemen: i Enclosed are the N1 arch 1999 Nionthly Operating Reports for Edwin 1. Ilatch Nuclear Plant Unit I, Docket No. 50-321, and Unit 2, Docket No. 50-366. These reports are submitted in accordance with Technical Specifications 5.6.4.

Respectfully submitted, y 8/4 % G8/ML II. L. Sumner, Jr.

IFUeb

Enclosures:

1. h1 arch hionthly Operating Report for Plant flatch Unit 1

2. N1 arch N1onthly Operating Report for Plant Hatch Unit 2 cc: Southern Nuclear Operatina Company l Nir. P. H. Wells, Nuclear Plant General Manager SNC Document hianagement (R-Type A02.001) 11._S. Nuclear Regulatory Commission. Washington D. C.

hir. L. N. Olshan, Project Nianager - Hatch

\

U. S. Nuclear Renulatory Commission. Recion 11 hir. L. A. Reyes, Regional Administrator hir. J. T. hiunday, Senior Resident inspector - Hatch

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Utility Data Institute. Inc.

Nis. Barbara Lewis - hicGraw-Hill Companies 9904160177 990331 PDR ADOCK 05000321 R PDR . . .

Enclosure I Plant flatch Unit i Monthly Operating Report March 1999 Table of Contents Page Operating Data Report El-1 Unit Shutdowns and Power Reductions E l-2

OPERATING DATA REPORT

, Docket No.: 50-321 Unit Name: E. l. Hatch Unit 1 Date:

Completed By: S._B.April 1,1999 Rogers _ ______

Telephone: (912) 367-7781 x_2_878 Operating. Status

1. Reporting Period: MARCH 1999

2. Design Electrical Rating (Net MWe): 822.1 __

3. Maximum Dependable Capacity (Net MWe): 787 . _. _

This Month Year To Date cumulative

4. Number of Hours Reactor Was Critical: 0.1 1,416.1 160,156.3

5. Hours Generator On Line: __ __ __ _ . 0.1 _ _ _ _ _ _ 1,416.1 .

____ 154,733.7

6. Unit Reserve Shutdown Hours: 0.0 0.0 0.0

7. Net Electrical Energy Generated: ~ ~~-5363~ ~ ' ~ ~1,12f,688~ -109,165,845 CHALLENGES TO MAIN STEAM SAFETY / RELIEF VALVES

_D_ ate nTag No. _, Ev_ent Des _c_nptio_n_ __ ___ , __ _ _ . _ _ _ _ _ _ _ . _ . .

No challenges this month.

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UNIT SHUTDOWNS Docket No.: 50-321 _ _ _ _.

Unit Name: E.1. Hatch Unit 1_ _ _ _ _ _

Date: April _1,1999 Comp!eted By: S. B. Rogers Telephone: (912) 3_67-7781 x2878 _

Reporting Period: MARCH 1999 Type Method of e emw Durabon Shuttng Cause/Correctve Actons No Date s senwww (Hour =) Reason (1) Down (2) Cornments99-001 990301 S 743.9 C 2 The unit entered the 18th Refueling Outage when Shift inserted a manual scram and tripped the Main Turbine.

(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 E-Operator Training / License Examination 5-Other (Explain)

F-Administrative G-Operational Error (Explain)

H.Other (Explain)

CAUSE/ CORRECTIVE ACTIONICOMMENTS:

1 NARRATIVE REPORT l

Shift continued the load reduction which began on 2/28/99 in preparation for a unit shutdown to start the 18th Refueling Outage. The unit entered the 18th Refueling Outage on 3/1/99 when Shift inserted a manual scram and tripped the Main Turbine. Shift began unloading a predetermined number of fuel bundles on 3/8/99 to facilitate in-vessel work and inspection. The initial fuel movements were completed on 3/9/99.

Shift began fuel shuffle on 3/23/99 and the shuffle was completed on 3/26/99. Activities associated with the 18th Refueling Outage continued for the remainder of the month.

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. Enclosure 2 Plant flatch Unit 2 Monthly Operating Report March 1999 Table of Contents Eage Operating Data Report E2-1 Unit Shutdowns and Power Reductions E2-2 l

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OPERATING DATA REPORT Docket No.: 50-366 Unit Name: E. l. Hatch Unit 2 Date: April 1,1999 Completed By: S. B. Rogers _ _ l l

Telephone: (912) 367-7781 x2878 1 Operating. Status

1. Reporting Period: MARCH 1999

2. Design Electrical Rating (Net MWe): '859 1

3. Maximum Dependable Capacity (Net MWe): 855 This Month Year _To Date Curnulative 1

4. Number of Hours Reactor Was Critical: 744.0 2,052.2 136,199.1

5. Hours Generator On Line: 744.0 2,013.0 132,112.0

6. Unit Reserve Shutdown Hours: 0.0 0.0 0.0

7. Net Electrical Energy Generated: ___ _6_60,470_

1,757,122_. __ 94,393,29_4 CHALLENGES TO MAIN STEAM SAFETY / RELIEF VALVES Date Tag No. Event Desenption No challenges this month.

)

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UNIT SHUTDOWNS Docket No.: 50-366 Unit Name: E. I. Hatch Unit 2 Date: April 1,1999 Completed By: S._B._ Rogers _ _

Telephone: _912)

( 36_7-7_781 x2878 Reporting Period: MARCH 1999 Type Method of F Forced Duration Shutung Cause/ Corrective Actions No Date s scw.o (Hours) Reason (1) Down (2) Comments No unit shutdowns occurred this month.

1 (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 E-Operator Training / License Examination 5-Other (Explain)

F-Administrative G-Operational Error (Explain)

H-Other (Explain)

CAUSE/ CORRECTIVE ACTION / COMMENTS:

NARRATIVE REPORT Unit 2 began the month of March operating at approximately 2708 CMWT. Shift reduced load to approximately 845 GMWe on 3/3/99 when the unit experienced a partialloss of feedwater heating. Investigation revealed the low level control valve on the "A" 8th Stage Feedwater Heater had closed due to a broken air line fitting.

This resulted in the isolation of extraction steam to the "A" 7th and 8th Stage Feedwater Heaters due to high heater levels. Repairs were made and the unit was returned to 2708 CMWT later that day. Shift reduced load to approximately 890 GMWe on 3/13/99 while performing a Rod Pattern Adjustment. The unit was returned to 2708 CMWT later that day. Shift continued to maintain operation at approximately 2'708 CMWT for the remainder of the month.

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