What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) On Tuesday, September 14, 1999, N7SN, a CE-550 operated by sevenson environmental was enroute from iag to lot when approximately 50 miles west of iag the left engine quit. The only indication was the master caution light. The crew attempted a restart, but to no avail. The aircraft returned to iag without further incident. The engine was changed at iag and the "off" unit sent to dallas airmotive where teardown was witnessed by FAA personnel. The cause of the failure was determined to be failure of p/n 3029390 bevel gear. The service bulletin history of the engine was current. FAA inspector william c. nelson instructed the repair station to fill out a malfunction and defect report. This incident is considered closed.
As the FAA filed it
(-23) ON TUESDAY, SEPTEMBER 14, 1999, N7SN, A CE-550 OPERATED BY SEVENSON ENVIRONMENTAL WAS ENROUTE FROM IAG TO LOT WHEN APPROXIMATELY 50 MILES WEST OF IAG THE LEFT ENGINE QUIT. THE ONLY INDICATION WAS THE MASTER CAUTION LIGHT. THE CREW ATTEMPTED A RESTART, BUT TO NO AVAIL. THE AIRCRAFT RETURNED TO IAG WITHOUT FURTHER INCIDENT. THE ENGINE WAS CHANGED AT IAG AND THE "OFF" UNIT SENT TO DALLAS AIRMOTIVE WHERE TEARDOWN WAS WITNESSED BY FAA PERSONNEL. THE CAUSE OF THE FAILURE WAS DETERMINED TO BE FAILURE OF P/N 3029390 BEVEL GEAR. THE SERVICE BULLETIN HISTORY OF THE ENGINE WAS CURRENT. FAA INSPECTOR WILLIAM C. NELSON INSTRUCTED THE REPAIR STATION TO FILL OUT A MALFUNCTION AND DEFECT REPORT. THIS INCIDENT IS CONSIDERED CLOSED.