What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Aircraft declared an emergency while coming in for landing. Pilot reported that engine began running really rough during flight and decided to divert to a closer airport than the intended destination. While on short final for the runway, when throttle was reduced for landing, aircraft engine died. A normal landing was able to be performed without incident. Subsequent engine inspection revealed a stuck valve on the #3 cylinder. Aircraft owner elected to have entire cylinder replaced.
As the FAA filed it
AIRCRAFT DECLARED AN EMERGENCY WHILE COMING IN FOR LANDING. PILOT REPORTED THAT ENGINE BEGAN RUNNING REALLY ROUGH DURING FLIGHT AND DECIDED TO DIVERT TO A CLOSER AIRPORT THAN THE INTENDED DESTINATION. WHILE ON SHORT FINAL FOR THE RUNWAY, WHEN THROTTLE WAS REDUCED FOR LANDING, AIRCRAFT ENGINE DIED. A NORMAL LANDING WAS ABLE TO BE PERFORMED WITHOUT INCIDENT. SUBSEQUENT ENGINE INSPECTION REVEALED A STUCK VALVE ON THE #3 CYLINDER. AIRCRAFT OWNER ELECTED TO HAVE ENTIRE CYLINDER REPLACED.