What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) N913QS, was enroute form aspen, co to des moines, IA, at flight level 390. The crew reported to air traffic control that they smelled smoke in cockpit. An emergency descent was initiated and the aircraft diverted to Omaha, NE. The crew landed and taxied to the ramp. The reported that there was no smoke visible until the passengers were deplaned, then a haze developed. The crew completed the shutdown without incident. Duncan avation mechanics, from lincoln, NE, found that the aft air cycle machine was seized. The air cycle machine was replaced with a repaired unit.
As the FAA filed it
(-23) N913QS, WAS ENROUTE FORM ASPEN, CO TO DES MOINES, IA, AT FLIGHT LEVEL 390. THE CREW REPORTED TO AIR TRAFFIC CONTROL THAT THEY SMELLED SMOKE IN COCKPIT. AN EMERGENCY DESCENT WAS INITIATED AND THE AIRCRAFT DIVERTED TO OMAHA, NE. THE CREW LANDED AND TAXIED TO THE RAMP. THE REPORTED THAT THERE WAS NO SMOKE VISIBLE UNTIL THE PASSENGERS WERE DEPLANED, THEN A HAZE DEVELOPED. THE CREW COMPLETED THE SHUTDOWN WITHOUT INCIDENT. DUNCAN AVATION MECHANICS, FROM LINCOLN, NE, FOUND THAT THE AFT AIR CYCLE MACHINE WAS SEIZED. THE AIR CYCLE MACHINE WAS REPLACED WITH A REPAIRED UNIT.