ML20116J896
| ML20116J896 | |
| Person / Time | |
|---|---|
| Site: | Fort Calhoun  |
| Issue date: | 09/30/1992 |
| From: | OMAHA PUBLIC POWER DISTRICT |
| To: | |
| Shared Package | |
| ML20116J877 | List: |
| References | |
| NUDOCS 9211160423 | |
| Download: ML20116J896 (2) | |
Text
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-U.. S. Nuclear Regulatory Comission LIC-92-331 ENCLOSVRE &
Carr_ected Pace for September 1992 MOR 1
3 1
i
<a 9211160423 9211A3 PDR ADOCK 05000285-R PDR 1;,.
i
Monthly Operating Report LIC-92-310R Page 2 Early in the month, leakage results were erratic.-
-This is attributed to the transient RCS conditions due-to plant start-up.
Following start-up, leakage results were consistent.
The total RCS leak rate averaged 0.2 $ m in September.
"Known" l
lealage rate to the RCDT increased sli htly as compared to last month.
Following the increase in the le kage aftar the August Et-reactor trip and shutdown, the RCS leak rate appears to be steady with no adverse trends noted.
C.
- CHANGES, TESTS AND EXPERIMENTS REQUIRING NUCl_ EAR REGULATORY COMMISSION AUTHORIZATION PURSUANT T0 10CFR50.59 Amendment No.
Description None.
D.
SIGNIFICANT SAFETY RELATED MAINTENANCE FOR THE MONTH OF SEPTEMBER 1992 Replaced reactor coolant pump (RC-3D) shaft seal.
Replaced locking sleeve and -clamping device on the NI cable connector for the beated junction thern,acouple (YE-1168).
Repaired pin hole loak downstream of CH-364 (domineralized water inlet to charging pump CH-1B discharge isolation valve).
Repaired Battery Charger #1 (EE-8C) to eliminate excessive charger output ripple and vibration.
Replaccd the "0" rings and diaphragm on the charging-to Loop 1A isolation valve operator.
Replaced the power supply of the high pressure discharge header pressure loop (PQ-309).
Lift pressures were reset and verified on the pressurizer code safety valves (RC-141 and RC-142).
Setpoints were lowered to 2350 psia-for the RPS High Pressure Trip and Power Operated Relief Valves.
Replaced the 52/STA 3BH switches in the following feeder breaker cubicler-Transformer TIB-3A, spare motor feeder IA3-17 and the-feeaar for reactor coolant pump RC-30 motor IA4-16.
Removed and repaired the containment VA-8A cooling coil CCW inlet relief valve (AC-285).
Replaced the containunt spray flow indication loop power supply (FQ-342).
Installed cabling to FW-5A/B/C to resolve a potential fire barrier degradaticn in the switchgear room.