What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Pilot reported that the alternator failed on the right engine, and he performed a precautionary engine shut down and declared an emergency to the ontario int'l airport, ontario CA. The aircraft landed without incident, the engine was examined by an aircraft mechanic and it was determined that the drive coupling had sheared which caused contamination of the oil system. The mechanic flushed the engine and changed the alternator. The pilot flew the aircraft to long beach, CA for additional inspection and/or maintenance. The pilot indicated that the long beach maintenance facility would submit the malfunction and defect report.
As the FAA filed it
(-23) PILOT REPORTED THAT THE ALTERNATOR FAILED ON THE RIGHT ENGINE, AND HE PERFORMED A PRECAUTIONARY ENGINE SHUT DOWN AND DECLARED AN EMERGENCY TO THE ONTARIO INT'L AIRPORT, ONTARIO CA. THE AIRCRAFT LANDED WITHOUT INCIDENT, THE ENGINE WAS EXAMINED BY AN AIRCRAFT MECHANIC AND IT WAS DETERMINED THAT THE DRIVE COUPLING HAD SHEARED WHICH CAUSED CONTAMINATION OF THE OIL SYSTEM. THE MECHANIC FLUSHED THE ENGINE AND CHANGED THE ALTERNATOR. THE PILOT FLEW THE AIRCRAFT TO LONG BEACH, CA FOR ADDITIONAL INSPECTION AND/OR MAINTENANCE. THE PILOT INDICATED THAT THE LONG BEACH MAINTENANCE FACILITY WOULD SUBMIT THE MALFUNCTION AND DEFECT REPORT.