The ATSB's Preliminary Aviation Safety Investigation Report into the 7 May 2005 Lockhart River accident in which two pilots and 13 passengers perished has found that the Metroliner had descended about 1000 ft below the minimum obstacle clearance altitude when it collided with terrain. The aircraft had cut a swath of less than 100 m through heavy timber on the steep slope.
Preliminary information recovered from the flight data recorder and on-site examination of components indicates that both engines were producing about 30 to 35% torque. This is consistent with an approach power setting.
The…