What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Aircraft departed from stt airport runway 28 in the third leg of the day climbing out to 900FT banking left to 180°. 3MIN into the flight a loud explosion like sound was heard inside the engine followed by a hi rev sound. PIC shut down the engine and fuel supply, declared an emergency to ATC at 400FT and executed a successful water landing 3 miles south of stt. Onsite investigation found an engine oil leak in the engine front cowling coming from the gearbox section and damage to the right side float. The second discrepancy was due by the boat that transported the passengers back to land.
As the FAA filed it
AIRCRAFT DEPARTED FROM STT AIRPORT RUNWAY 28 IN THE THIRD LEG OF THE DAY CLIMBING OUT TO 900FT BANKING LEFT TO 180°. 3MIN INTO THE FLIGHT A LOUD EXPLOSION LIKE SOUND WAS HEARD INSIDE THE ENGINE FOLLOWED BY A HI REV SOUND. PIC SHUT DOWN THE ENGINE AND FUEL SUPPLY, DECLARED AN EMERGENCY TO ATC AT 400FT AND EXECUTED A SUCCESSFUL WATER LANDING 3 MILES SOUTH OF STT. ONSITE INVESTIGATION FOUND AN ENGINE OIL LEAK IN THE ENGINE FRONT COWLING COMING FROM THE GEARBOX SECTION AND DAMAGE TO THE RIGHT SIDE FLOAT. THE SECOND DISCREPANCY WAS DUE BY THE BOAT THAT TRANSPORTED THE PASSENGERS BACK TO LAND.