RedactedNarrative: OPERATOR 1 WAS OPERATING VESSEL 1 WHILE CRUISING ON PLANE. AS OPERATOR 1 WAS UNDERWAY WITH VESSEL 1 AS THEY WERE TAKING VESSEL 1 FOR MAINTENANCE OPERATOR 1 NOTICED VESSEL 1 SMOKING. VESSEL 1 SUSTAINED DAMAGED DUE TO BOTH ENGINES OVERHEATING FOR AN UNKNOWN REASON. OPERATOR 1 DID NOT SUSTAIN ANY INJURIES FROM THE FIRE.