What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) After departing Purdue airport, west Lafayette, Indiana on may 22, 1999 aircraft experienced rough running engine shortly after establishing cruise flight. The pilot declared and emergency and returned to the airport to make an uneventful landing. Inspection of the engine disclosed that the number 5 connecting rod had failed causing major damage to the engine. There were no injuries involved due to this incident and no further damage to the aircraft. Incident number IGL11990042
As the FAA filed it
(-23) AFTER DEPARTING PURDUE AIRPORT, WEST LAFAYETTE, INDIANA ON MAY 22, 1999 AIRCRAFT EXPERIENCED ROUGH RUNNING ENGINE SHORTLY AFTER ESTABLISHING CRUISE FLIGHT. THE PILOT DECLARED AND EMERGENCY AND RETURNED TO THE AIRPORT TO MAKE AN UNEVENTFUL LANDING. INSPECTION OF THE ENGINE DISCLOSED THAT THE NUMBER 5 CONNECTING ROD HAD FAILED CAUSING MAJOR DAMAGE TO THE ENGINE. THERE WERE NO INJURIES INVOLVED DUE TO THIS INCIDENT AND NO FURTHER DAMAGE TO THE AIRCRAFT. INCIDENT NUMBER IGL11990042