Semantic search
Jump to navigation
Jump to search
| Issue date | Title | Topic | |
|---|---|---|---|
| NPL-98-0880, Special Rept:On 980913,fire Alarm Control Panels Inoperable for More That Fourteen Days.Troubleshooting of D-401 Panel Following Installation of Replacement Batteries Revealed No Apparent Cause for Spurious Alarms.Panel D-401 Restored | 21 October 1998 | Special Rept:On 980913,fire Alarm Control Panels Inoperable for More That Fourteen Days.Troubleshooting of D-401 Panel Following Installation of Replacement Batteries Revealed No Apparent Cause for Spurious Alarms.Panel D-401 Restored | Safe Shutdown Fire Protection Program Hourly Fire Watch |
| NPL-98-0209, Special Rept Re Fire Barrier Inoperable for Greater than Seven Days.Compensatory Measures Implemented in Accordance W/Fire Protection Program Requirements During Time That Barriers Were Inoperable | 30 March 1998 | Special Rept Re Fire Barrier Inoperable for Greater than Seven Days.Compensatory Measures Implemented in Accordance W/Fire Protection Program Requirements During Time That Barriers Were Inoperable | Fire Barrier Fire Protection Program |
| NPL-97-0831, Special Rept:On 971201,fire Protection Wrap Required for Svc Water Pump Motor Cables Had Been Rendered Inoperable for More than Seven Days.Caused by Planned Repair activity.Once- per-hour Fire Patrol Established | 23 December 1997 | Special Rept:On 971201,fire Protection Wrap Required for Svc Water Pump Motor Cables Had Been Rendered Inoperable for More than Seven Days.Caused by Planned Repair activity.Once- per-hour Fire Patrol Established | Safe Shutdown Fire Barrier Fire Protection Program Fire Watch |
| NPL-97-0751, Special Rept:On 971023,low Temp Overpressure Protection Sys Operation Occurred.Caused by Starting Reactor Coolant Pump w/water-solid Reactor Coolant Sys.Operating Personnel Will Be Briefed on Event | 21 November 1997 | Special Rept:On 971023,low Temp Overpressure Protection Sys Operation Occurred.Caused by Starting Reactor Coolant Pump w/water-solid Reactor Coolant Sys.Operating Personnel Will Be Briefed on Event | |
| NPL-97-0287, Special Rept:On 970421,fire Door 106A in DG Bldg,Separating Mechanical Equipment Room from Unit 2,B-train,4KV Switchgear Room,Found in Open Position (Closed But Not Latched) | 21 May 1997 | Special Rept:On 970421,fire Door 106A in DG Bldg,Separating Mechanical Equipment Room from Unit 2,B-train,4KV Switchgear Room,Found in Open Position (Closed But Not Latched) | Safe Shutdown Fire Barrier Fire Protection Program Fire Watch |
| ML20132E068 | 17 December 1996 | Ro:On 961114,declared Noble Gas Monitor Inoperable.Caused by Necessary Addl Repairs on Failed Pump & Subsequent re- Testing of Sys.Will Repair P-707A Pump & Perform in-service Test by 961220 | |
| ML20080P959 | 3 March 1995 | Special Rept:On 950207,control Rod H8 in Control Bank B Dropped.Investigation Revealed No Abnormal Conditions. Decision Was Made to Recover Dropped Rod | |
| ML20099B955 | 29 July 1992 | Ro:Fire Penetration Seal Degraded & Inoperable for More than 7 Days.Caused by Voids in Seal Structure.Hourly Fire Watch Established & Mod to Seal Completed on 920720 | Fire Barrier Hourly Fire Watch |
| ML20195B727 | 26 October 1988 | Special Rept:On 880831,emergency Diesel Generator Unexpectedly Returned to Full Speed & Voltage Condition. on 880929 & 1012,event Recurred.Exact Cause Not Determined. Addl Testing Planned Over Next 90 Days to Pinpoint Cause | Coast down |
| ML20072U428 | 30 March 1983 | Ro:On 830308,turbine Trip & Subsequent Reactor Trip Experienced.Caused by Bumping of Main Steam Stop Valve Relay by Contractor Employee While Working on Control Panel. Cleanup Flow Maintained.On 830306,I-131 Limit Exceeded | |
| ML20087L107 | 4 February 1975 | Telecopy Ro:On 750203,Nuclear Fuel Svcs Spent Fuel Shipping Cask 4B Received & Found in Excess of 22,000 Disintegrations Per Minute 100 Centimeters Squared Removable Contamination on Cask Surface | |
| ML20087L112 | 4 February 1975 | RO 75-2:on 750224,test of Containment Purge Inlet & Exhaust Valves Closing Time Disclosed That Valves 1CV-3212 & 1CV-3244 Exceeded 3-5 Min Closing Time.Caused by Sticking Pneumatic Relays in Valve Air Operators | |
| ML20087L188 | 24 January 1975 | Ro:On 741219,discovered That One Insp of Station Batteries Not Completed within Prescribed 30 Day Frequency or within Allowable 25% Grace Period.Caused by Scheduling Difficulty Due to New Supervisor | Grace period |
| ML20087L633 | 6 February 1974 | Ro:On 740102,during Quarterly Functional Testing of Emergency Diesel Backup Relays 4D,fast Start Backup Relays SFB1 & SFB2 Would Not Perform Intended Function.Caused by Neoprene Bellows in Timing Chamber | |
| ML20085M395 | 29 October 1973 | Ro:Describing Possible Backseating Disc Mislocation Problem on 2-inch Darling Valves on S-350 Wdd Welding End.Valves Repaired.Valve Stems Will Be Changed During Next Refueling Outage | |
| ML20087L635 | 14 May 1973 | Ro:On 730303 & 0426,test of Undervoltage Relays of 1A01 & 1A02 Nonsafeguards Bus Undervoltage Relays Disclosed Three Out of Four Malfunctional.Caused by Setting of Shaft in Guide Bearing.Relays Removed & Returned to Vendor for Exam | |
| ML20087L655 | 9 March 1973 | Ro:On 730208,during Performance of Functional Test on Purge Valves,Two Containment Purge Inlet Valves Open When Placing Manual Switch to Open Position But Did Not Close.Caused by Loose Screw on Switch.Mod Made to Valve Circuits |