Narrative:

Arrived at gate after flight dtw-ord. Shutdown #1, #2, #3 engines, waited 4-5 mins with #4 running while we waited for external power. Shut down #4 and left aircraft through the jetway approximately 10 mins after arrival at gate. While waiting at nearby gate to deadhead out, captain was paged and told crew to return to the aircraft. Mechanic reported that #1 engine was on fire after aircraft blocked in . Mechanic said the smoke was coming out and flames were dripping from engine. When mechanic observed that crew was not using the aircraft fire extinguishing system, he opened the constant speed drive access door and dispersed a ground fire extinguisher. We observed the #1 engine with the nacelle door opened and observed that the constant speed drive was charred substantially. We had departed dtw with the #1 generator inoperative. The inbound crew disconnected the constant speed drive in-flight and reported a clean disconnect. Maintenance signed off aircraft and signed off constant speed drive disconnected. So did not report any abnormalities with #1 engine before, during, or after flight. No fire warning or overheat was ever observed by the flight crew.

Google
 

Original NASA ASRS Text

Title: AFTER THE FLC HAD PARKED AND SECURED THE ACFT AND TURNED THE ACFT OVER TO MAINT A FIRE WAS DISCOVERED COMING FROM THE #1 ENG AND DETERMINED TO BE THE CONSTANT SPD DRIVE.

Narrative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

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.