What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) N37342, CL-600-2B19, was being operated by mesa airlines as united airlines express flight 7299, between chicago, IL. And Lincoln, NE. During the approach to Lincoln the crew reported to ATC that they received an APU fire indication light. Contract maintenance was called and they determined that it was an APU fire indication fault. The cause of the false indication was not determined.
As the FAA filed it
(-23) N37342, CL-600-2B19, WAS BEING OPERATED BY MESA AIRLINES AS UNITED AIRLINES EXPRESS FLIGHT 7299, BETWEEN CHICAGO, IL. AND LINCOLN, NE. DURING THE APPROACH TO LINCOLN THE CREW REPORTED TO ATC THAT THEY RECEIVED AN APU FIRE INDICATION LIGHT. CONTRACT MAINTENANCE WAS CALLED AND THEY DETERMINED THAT IT WAS AN APU FIRE INDICATION FAULT. THE CAUSE OF THE FALSE INDICATION WAS NOT DETERMINED.