Overview
On an unspecified date, a multi-engine aircraft landed on runway 15 at Melilla Airport. Upon touchdown, the pilot-in-command found that he could not engage ground idle or reverse thrust on either propeller. The aircraft's brakes did not respond normally. Both pilots attempted to brake, but the aircraft began to deviate left of the runway axis.
Sequence of Events
As the deviation continued, tyre number 3 burst. The aircraft left the paved runway surface and ultimately fell through an embankment approximately 15 meters high located at the end of runway 15. The aircraft was destroyed in the accident. The pilot-in-command and nine other individuals sustained minor injuries. No fire occurred.
Investigation Findings
The official investigation determined the probable cause of the accident as a combination of three factors:
1. An unstable approach that resulted in a higher than normal touchdown speed. 2. The inability to select propeller reverse due to the probable tripping of the circuit breaker FLIGHT IDLE SOLENOID 1 & 2 before or at touchdown. 3. The cross connection of the wheel speed transducer wire harness of wheels 3 and 4, which, due to heavy braking, produced a flat spot in wheel 3 and reduced the braking capability of wheel 4.