ML20073L380

Revised Monthly Operating Rept for Mar 1991 for Clinton Power Station Unit 1

ML20073L380
Person / Time
Site:	Clinton
Issue date:	03/31/1991
From:	ILLINOIS POWER CO.
To:
Shared Package
ML20073L320	List: ML20073L373 ML20073L380 U-601836, Forwards Monthly Operating Rept for Apr 1991 for Clinton Power Station,Unit 1 & Revised Monthly Rept for Mar 1991
References
NUDOCS 9105130312
Download: ML20073L380 (1)

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Revision to-Page 4 of 4:

.. Attachment 1 to U-601824

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' UNIT SHUTDOWNS AND POWER REDUCTIONS

:U 7Pc DOCKET NO.

50-461-EE3

. UNIT Clinton 1 d

DATE 03/31/91 Dr.a COMPLETED BY F.

A.

Spannenberc. III EU3 TELEPHONE' (217) 935-8881 X3400 gy REPORT MONTH March 1991 C -O vi" ME"dOD OF coo TYPE 5 HUTTING DOWN

['

F: ' FORCED DURATION THE REACTOR OR CORRECTIVE ACTIONS NO.

DATE

-S: ' SCHEDULED- (HOURS)

REASON (1)

REDUCING POWER (2) / COMMENTS 90-08 901014 F

188.4 B:

Forced extension of the 4:

Continued shutdown 90-08 second refueling outage to correct deficiencies, including 120 hours0.00139 days <br />0.0333 hours <br />1.984127e-4 weeks <br />4.566e-5 months <br /> to make repairs to misaligned and damaged Residual Heat Removal system suction line pipe hangers, identified during the second refueling outage (RF-2) not related to work originally in the RF-2 scope.

91-01 910309 F

16.8 A:

Due to problems experienced 1; Operators Manually Tripped the while transferring loads Turbine. Reactor power was to the generator bus, operators maintained at approximately 15%.

manually tripped the turbine.

Investigation determined that a transducer was not reinstalled in the Unit Auxiliary Transformer y~

during maintenance performed during RF-2.

(1) Reason A-Equipment Failure (explain), B-Maintenance or Test, C-Refueling, D-Regulatory Restriction, E-Operator '. raining & License Examination, F-Administrative, G-Operational Error.-(explain),

H-Other (2) Method 1-Manual, 2-Manual Scram, 3-Auto Scram, 4-Continued

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