Incident Overview
After exiting the runway, a pilot taxied normally toward the U.S. Customs service ramp. While attempting a right turn onto the Customs Ramp, the pilot found that the right brake was not functional. Given the proximity of other aircraft, the pilot determined that differential power was not a viable option. He then cut the magnetos and applied gentle left brake pressure.
Collision Sequence
The left wing struck a parked Beech-18, damaging the upper engine nacelle and propeller. The impact caused the airplane to continue leftward until the right propeller, which was not rotating, struck the left wing of the same Beech-18.
Brake System Findings
Examination of the right brake system revealed that the right expander tube had failed. This failure rendered the right brake inoperative, preventing the pilot from stopping the aircraft before it collided with the parked and unoccupied Beech 18.