CFM56-7 LOTC Events CFM56-5C China All Operators Meeting 2002 CFM Proprietary Data Unauthorized Disclosure Prohibited 2 CFM56-7B LOTC Events Dec. 2001 - Mar. 2002 • December 24, 2001 - Description - Engine rolled back during cruise - Result - Airplane diversion - Maintenance Action - EEC replaced - Root Cause - EEC Memory Corruption (DFDR data duplicated by CFMI testing) • December 30, 2001 - Description - At top of decent engine remained at part power - Result - Commanded In Flight Shutdown - Maintenance Action - HMU and EEC Replaced - Root Cause - EEC Memory Corruption (DFDR data duplicated by CFMI testing) • January 5, 2002 - Description - Engine rolled sub-idle during lightning strikes - Result - Uneventful single engine landing - Maintenance Action - EEC sent to BAE as precaution - - Root Cause - Disturbances at the engine inlet caused by lightning strikes CFM56-5C China All Operators Meeting 2002 CFM Proprietary Data Unauthorized Disclosure Prohibited 3 CFM56-7B LOTC Events Dec. 2001 - Mar. 2002 • February 15, 2002 - Description - Engine rolled back during taxi out - Result - Aborted Takeoff - Maintenance Action - N2 sensor replaced. N2 sensor had been installed for 15 hours. N2 sensor may not have been repaired. - Root Cause - N2 Sensor (Waiting sensor repair results) • February 23, 2002 - Description - N1 split during takeoff roll - Result - Aborted Takeoff - Maintenance Action - TBD - Root Cause - Under Investigation (Decoded DFDR data was corrupted - DFDR ground station being investigated by Boeing) CFM56-5C China All Operators Meeting 2002 CFM Proprietary Data Unauthorized Disclosure Prohibited 4 CFM56-7B LOTC Events Dec. 2001 - Mar. 2002 • March 13, 2002 - Description - N1 rolled back at 35,000 ft. - recovered - and rolled back again. Engine stayed at idle during thrust reverser operation. After stowing the thrust reverser the engine rolled sub-idle and shutdown. - Result - Air turn back - Maintenance Action - EEC replaced - Root Cause - EEC Memory Corruption (DFDR data duplicated by CFMI testing) • March 19, 2002 - Description - Aircrew reported engine would not respond to throttle prior to takeoff - Result - Aborted Takeoff - Maintenance Action - PEO sensor replaced - Root Cause - Under Investigation (PEO sensor to be returned for investigation)作者: 979199501 时间: 2011-4-12 14:22:29 标题: 回复 1# 航空 的帖子
