ML20136B902
| ML20136B902 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 08/31/1985 |
| From: | COMMONWEALTH EDISON CO. |
| To: | |
| Shared Package | |
| ML20136B874 | List: |
| 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.
H*
3 I.M. removed wrong cable during surveillance on 25) 8/7/85 F
23.7 i
power range channels, which actuated the 2 out of 4 reactor trip logic.
H*
1 Inadequate N.D.E. records of safety injection 26) 8/29/85 F
51.8 2
valve weld, resulting in tech. spec. required shut.down.
CH :
Instrument Mechanic error.
1 CH : Tech. Spec. required shutdown 2
c cocce********
Byron 1 is continuing in its 100% Power Test Sequence.
0 Summary 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