What happened
Shortly after departing the runway, the pilot reported hearing a sudden, loud noise. Immediately following this event, the aircraft began to vibrate severely. The engine continued to operate but produced only partial power, preventing the aircraft from gaining altitude. Despite efforts to maintain control, the plane could not climb and descended at a rate of approximately 100 feet per minute.
With no possibility of returning to the departure airport due to the loss of performance, the pilot executed an emergency water landing in the ocean. The aircraft was submerged, leading to significant damage from saltwater exposure.
The investigation
Post-accident examination of the propeller revealed extensive damage consistent with external impact. Both blades showed leading edge damage along the outboard four to five inches, accompanied by polishing on the cambered side. One blade was bent forward and had lost approximately four inches of its tip. About one inch further in from the tip, a gouge was present on the leading edge.
The other propeller blade was bent rearward. Approximately four inches from its tip, this blade also exhibited a gouge and a crack roughly one inch in length. The engine compartment contained considerable rust and corrosion resulting from contact with salt water. No other mechanical failures or malfunctions were identified during the inspection.