Illinois

On initial climb the pilot reported 'just lost one', followed by a loss of control and descent into a residential area. Subsequent investigation revealed a loose connection between the left engine throttle serrated washer and the serrated shaft. The engine had been removed and reinstalled a few flight hours prior to the occurrence. The pilot, sole on board, was killed.

The aircraft, at near gross weight (cg unknown), was on initial climb after takeoff. A witness reported that engines sounded normal. At about 400 feet agl the aircraft was reported to pitch up about 10°, then level off and entered a left turn. The aircraft made another left turn to the south-southwest. The pilot reported that he was returning to the field, but did not state problem. The witness said the aircraft was in a 30° left bank, turning toward the airport, when the aircraft stalled and descended to the ground in a vertical nose down attitude. Fire/explosion after impact. Left propeller found in feathered position. No engine problem found. On 1/28/87, left engine lost power after takeoff; no problem found; unable to duplicate. Pilot had two engine-out experiences in airplane previously, both when at low weight. Surrounding terrain suitable for off-airport landing. Both occupants were killed.

The pilot (a part time employee of the owner) was ferrying the aircraft for maintenance. Witnesses, who saw the pilot before take- off, noted that his speech was slurred and that he seemed angry because a tug would not start. One witness characterized him as being 'very mad' and said his face was 'flushed red.' The aircraft was observed to takeoff in a high nose-up attitude and climb about 500 to 1,000 feet before turning to the southwest and leveling. Subsequently, the plane turned back toward the airport, then it crashed and burned approximately 1-1/2 mile ssw of the airport while on a heading of northeast. Impact occurred while the aircraft was descending in a slightly left wing low attitude. The wreckage was scattered over an area that was approximately 600 feet long and about 45 feet wide at the widest point. According to witnesses, the engines were operating normally when the aircraft crashed. No preimpact mechanical problem was found. A toxicology check of the pilot's liver tissue fluid showed an alcohol level of 2,26‰. The pilot, sole on board, was killed.

The aircraft had departed on runway 13. He was then directed to climb to 6,000 feet. Thirty seconds later he advised he had engine trouble and was returning to the airport. Shortly thereafter he advised he could not maintain altitude. The aircraft, one mile southeast of the airport, struck the roofs of two family type residences. Then struck two garages, ground impacted and struck the rear area of a third residence. An intense fire followed. Left engine had impeller failure. Propeller was pitched between low and high rpm. The pilot, sole on board, was killed.

Evidence shows copilot called, 'mayday, uncontrolled spin' after aIRCRAFT radar track showed decelERATION from 180 to 120 kNOts over 2 minUTES period while maintaining constant 4,000 feet cruise altitude. Constant altitude consistent with autopilot/autotrim use, particularly in view of reported turbulence/icing. Elevator trim found at approx 13° nose up. No evidence found of preimpact failure or malfunction in aircraft powerplants, structure or systems. Evidence suggests scenario of crew inattention after power reduction with autopilot altitude setting. On power application, aircraft pitched up from slow speed into uncontrolled flight. Duty day at time of mishap approaching 11 hours. All five occupants were killed.

The aircraft was on climbout on an IFR flight plan in VMC conditions when the engine failed. A restart was attempted and the engine ran for a minute or less. Subsequent attempts were unsuccessful. The aircraft was over Lake Michigan and had insufficient altitude to reach the shoreline. A successful water landing was made and the occupants were picked up by the Coast Guard unharmed. Subsequent examination of the engine revealed that the crankshaft had fractured.

The Falcon 10 touched down long and fast on a wet runway, experienced hydroplaning and went off the end of the runway, struck a drainage ditch and collapsed the landing gear. The nose gear came back and bent the throttle quadrant bracket, pulled the fuel controls to 90% power. This pushed the aircraft on its belly another 1,000-1,600 feet until it came to a stop on a hillside. Both pilots were uninjured.

The aircraft crashed after takeoff from runway 29 at Williamson County Airport. The pilot stated that she mismanaged the fuel system and that she 'probably took off on fumes.' She further stated that she should have told the company 'I'm too tired to make this flight.' The pilot was slightly injured.

Flight 710 departed Chicago, IL for a flight to Carbondale, IL via Springfield, IL. The flight was about 45 minutes behind schedule when it arrived at Springfield, about 20:05. At 20:11, the flightcrew were provided with the latest Carbondale weather: ceiling and visibility were 2,000 feet overcast and 2 miles, respectively, with light rain and fog. The crew then requested its IFR clearance, with 5,000 feet for its en route altitude. At 20:16, Flight 710 was cleared to taxi to runway 15 for takeoff. The aircraft took off at 20:20 and climbed to cruising altitude. At 20:21:34, Flight 710 informed the departure controller that it had experienced a "slight electrical problem..." and that it would keep the controller "advised." The flight then requested and was cleared to maintain 3,000 feet. At 20:23:54, the first officer told the captain that "the left (generator) is totally dead, the right (generator) is putting out voltage but I can't get a load on it." At 20:24:26, the first officer reported, "zero voltage and amps (amperes) on the left side, the right (generator) is putting out twenty-seven and a half (volts) but I can't get it to come on the line." The battery voltage further dropped to 22 volts. The crew a.o. shut off excess cabin lights because of the electrical problem. About 20:38, the first officer mistakenly isolated the right generator and right generator bus bar from the aircraft's dc electrical distribution system. Radio contact was lost when the flight was requested to change radio frequencies. At 20:52 the captain decided to descend to 2,400 feet and the voltage had further dropped to 13 volts. The aircraft continued to descend and struck the ground in an open pasture area.

Following a missed approach to Aurora-Sugar Grove Airport, the twin engine airplane descended in a left turn, causing the left wing to struck the ground first. The aircraft broke up and caught fire. The pilot, sole on board, was killed. No malfunctions found.