What happened
The aircraft was operating on a maritime patrol mission over the waters of the Gulf of Mexico. During this operation, the seaplane failed to return to its designated base. Subsequent search efforts were unable to locate the aircraft or any debris, and the plane was declared lost without trace.
Findings
The source material does not provide specific details regarding the technical cause of the disappearance or the final determination of contributing factors. The incident is recorded primarily as a loss of communication and subsequent failure to return from a routine patrol flight.