ML20136B902

Revised Monthly Operating Rept for Aug 1985

ML20136B902
Person / Time
Site:	Byron
Issue date:	08/31/1985
From:	COMMONWEALTH EDISON CO.
To:
Shared Package
ML20136B874	List: ML20136B871 ML20136B883 ML20136B889 ML20136B902
References
(0625M), (625M), NUDOCS 8511200313
Download: ML20136B902 (1)

Text

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CPlea m in:rrt thic r~ port in th3 August 1985 r: port. -

R: port Period August, 1985 UNIT SHUTDOWNS / REDUCTIONS

• BYRON

• No. Date Type Hours Reason Method LER Number System Component Cause & Corrective Action to Prevent Recurrence

23) 8/1/85 S 14.5 B 2 Continued outage as a result of 100% Reactor Trip Startup Test from 7/27/85.

24) 8/1/85 F 21.2 A 1 Unit 1 equipment hatch failed it's surveillance; required to shutdown as per tech spec.

25) 8/7/85 F 23.7 H*

i 3 I.M. removed wrong cable during surveillance on power range channels, which actuated the 2 out of 4 reactor trip logic.

26) 8/29/85 F 51.8 H*

2 1 Inadequate N.D.E. records of safety injection valve weld, resulting in tech. spec. required shut.down.

CH1 : Instrument Mechanic error.

CH2 : Tech. Spec. required shutdown c cocce********

0 Summary

• Byron 1 is continuing in its 100% Power Test Sequence. _

cos:cc********* ,

TYPE Reason Method ';vstem & Component F-Forced A-Equip Failure F-Admin 1-Manual Exhibit F & H S-Sch:d B-Maint or Test G-Oper Error 2-Manual Scram Iastructions for C-Refueling H-Other 3-Auto Scram Preparation of D-Regulatory Restriction 4-Continued Data Entry Sheet E-Operator Training 5-Reduced Load Licensee Event Report

& License Examination 9-Other (LER) File (NUREG-0161) 8511200313 851109 PDR ADOCK 05000454 (0625M) R PDR