Greenville

The private pilot of the multiengine airplane was in cruise flight at 23,000 ft mean sea level (msl) in day visual meteorological conditions when he reported to air traffic control that the airplane was losing altitude due to a loss of engine power. The controller provided vectors to a nearby airport; about 7 minutes later, the pilot reported the airport in sight and stated that he would enter a downwind leg for runway 14. By this time, the airplane had descended to about 3,200 ft above ground level. Radar data indicated that the airplane proceeded toward the runway but that it was about 400 ft above ground level on short final. The airplane flew directly over the airport at a low altitude before entering a left turn to a close downwind for runway 21. Witnesses stated that the airplane's propellers were turning, but they could not estimate engine power. When the airplane reached the approach end of runway 21, it entered a steep left turn and was flying slowly before the left wing suddenly "stalled" and the airplane pitched nose-down toward the ground. Postaccident examination of the airplane and engines revealed no mechanical deficiencies that would have precluded normal operation at the time of impact. Examination of both propeller systems indicated power symmetry at the time of impact, with damage to both assemblies consistent with low or idle engine power. The onboard engine monitor recorded battery voltage, engine exhaust gas temperature, and cylinder head temperature for both engines. A review of the recorded data revealed that about 14 minutes before the accident, there was a jump followed by a decrease in exhaust gas temperature (EGT) and cylinder head temperature (CHT) for both engines. The temperatures decreased for about 9 minutes, during which time the right engine EGT data spiked twice. Both engines' EGT and CHT values then returned to normal, consistent with both engines producing power, for the remaining 5 minutes of data. It is possible that a fuel interruption may have caused the momentary increase in both engines' EGT and CHT values and prompted the pilot to report the engine power loss; however, the engine monitor did not record fuel pressure or fuel flow, and examination of the airplane's fuel system and engines did not reveal any mechanical anomalies. Therefore, the reason for the reported loss of engine power could not be determined. It is likely that the pilot's initial approach for landing was too high, and he attempted to circle over the airport to lose altitude. While doing so, he exceeded the airplane's critical angle of attack while in a left turn and the airplane entered an aerodynamic stall at an altitude too low for recovery.

According to the pilot, he was conducting a GPS approach during occasional low ceilings, reduced visibility and rain. At the minimum descent altitude, the ground was 'occasionally' visible through fog and rain. Near the missed approach point, the runway lights were visible, so he continued the descent. He lost visual contact with the runway, and began a missed approach, but collided with trees. The accident site was 2 miles prior to the runway, on rising terrain, 200 feet below the runway elevation. The missed approach point was over the approach end of the runway.

The crew started the descent to Greenville Airport in poor weather conditions with fog and limited visibility. On final approach, the pilot-in-command passed below the glide and below the MDA fixed at 2,200 feet, probably to establish a visual contact with the ground. While descending to an altitude of 1,400 feet, the twin engine airplane struck trees and crashed in a wooded area located few miles short of runway. The aircraft was destroyed and all six occupants were killed.

45 minutes after takeoff from Greenville Airport, while conducting local practice, both engines failed simultaneously. The aircraft lost height and crashed in an uninhabited area. The passenger was killed and the pilot was seriously injured. The pilot recently purchased the aircraft and was not familiar with.

En route from St John to Montreal, the crew encountered engine problems and elected to make an emergency landing in a field located six miles east from Greenville, Maine. The aircraft was damaged beyond repair while both crew were able to walk away for few miles before finding help.
Crew:
'Babe' Woollett, pilot,
Al Parker, mechanic.