What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) During cruise flight at FL280, the left engine spooled down and quit, an emergency was declared and the aircraft landed uneventfully at Harrisburg international airport, PA (MDT). During a maintenance inspection, it was determined that the wing tip vent float valve "o" ring was installed on the wrong side of an outboard rib and a small amount of water was found in fuel tank. The "o" ring prevented fuel from getting to engine. The company is conducting a fleet campaign inspection to check other aircraft. Case closed.
As the FAA filed it
(-23) DURING CRUISE FLIGHT AT FL280, THE LEFT ENGINE SPOOLED DOWN AND QUIT, AN EMERGENCY WAS DECLARED AND THE AIRCRAFT LANDED UNEVENTFULLY AT HARRISBURG INTERNATIONAL AIRPORT, PA (MDT). DURING A MAINTENANCE INSPECTION, IT WAS DETERMINED THAT THE WING TIP VENT FLOAT VALVE "O" RING WAS INSTALLED ON THE WRONG SIDE OF AN OUTBOARD RIB AND A SMALL AMOUNT OF WATER WAS FOUND IN FUEL TANK. THE "O" RING PREVENTED FUEL FROM GETTING TO ENGINE. THE COMPANY IS CONDUCTING A FLEET CAMPAIGN INSPECTION TO CHECK OTHER AIRCRAFT. CASE CLOSED.