What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
After take off from oxb initiated climb, around 1,000FT engine stated to run rough. The PIC initiated a 180 degree turn back to oxb. During the return, the engine progressively worsened. A few seconds after the engien got worse, the PIC noticed the front top cowling starting to lift up and separate, followed by a splash of oil on windshield with lost of engine power. The PIC then initiated a turn to the beach. The PIC steered to right after touching down on sand to avoid people on the beach, then turned slightly left to go over the sandhill away from water. The aircraft tilted on its nose coming to a full stop.
As the FAA filed it
AFTER TAKE OFF FROM OXB INITIATED CLIMB, AROUND 1,000FT ENGINE STATED TO RUN ROUGH. THE PIC INITIATED A 180 DEGREE TURN BACK TO OXB. DURING THE RETURN, THE ENGINE PROGRESSIVELY WORSENED. A FEW SECONDS AFTER THE ENGIEN GOT WORSE, THE PIC NOTICED THE FRONT TOP COWLING STARTING TO LIFT UP AND SEPARATE, FOLLOWED BY A SPLASH OF OIL ON WINDSHIELD WITH LOST OF ENGINE POWER. THE PIC THEN INITIATED A TURN TO THE BEACH. THE PIC STEERED TO RIGHT AFTER TOUCHING DOWN ON SAND TO AVOID PEOPLE ON THE BEACH, THEN TURNED SLIGHTLY LEFT TO GO OVER THE SANDHILL AWAY FROM WATER. THE AIRCRAFT TILTED ON ITS NOSE COMING TO A FULL STOP.