Air Continental

The pilot departed Louisville, KY reportedly with a known oil leak in the right engine and was on the second leg of an on-demand air taxi cargo flight. About 14 minutes after entering Mansfield approach control airspace, the pilot requested and received an altitude change from 5,000 to 3,000 ft because he 'was picking up a lot of ice.' After entering Cleveland approach airspace he reported the right engine had failed and requested to return to Mansfield. The pilot was informed of Mansfield weather. He then indicated he wanted to try Cleveland, then reported he could not maintain altitude and wanted to go to Mansfield. The pilot was receiving vectors from Mansfield for an ASR approach to runway 23 and at about 1 1/2 miles from the threshold the pilot reported he was lowering the landing gear. The aircraft then disappeared from the radar scope. Investigation revealed improper weld repairs to the right engine case and separation of the number six cylinder from the case due to fatigue cracking in the through bolts and studs.

The aircraft was at cruise altitude (9,000 feet) for approximately 20 minutes when the pilot reported the loss of right engine power. Chicago ARTCC reported the closest airport was Kalamazoo, 28 miles west. The aircraft began to descend and at 0330:53 Chicago ARTCC reported N554AC was approximately 6 miles from Kalamazoo Airport. The pilot reported 'my right engine cowling is gone...I don't know if I'm going to make it.' Witnesses observed the aircraft at 'tree top level' and impact in a heavily wooded area near interstate 94, 5 miles from the airport. Investigation revealed improper weld repairs to the right engine case and separation of the number 2 cylinder from the case due to fatigue cracking in the through bolts and studs. The top section of the engine cowling separated due to the force of the cylinder separation. The pilot, sole on board, was killed.

On June 4, 1984, an unmodified Gates Learjet 23A, N101PP, was being operated by Air Continental, Inc., Elyria, Ohio, on a regularly scheduled cargo flight transporting cancelled bank checks under 14 CFR 135. The flight departed Cleveland-Hopkins International Airport, Ohio, as Night Air 4 at 2200 eastern daylight time. After an uneventful flight, Night Air 4 arrived at Syracuse-Hancock International Airport, New York, at 2245. There was routine ground cargo handling at Syracuse; the airplane was not refueled. Night Air 4 departed Syracuse at 2311, was cleared to climb to 17,000 feet, and was handed off to Boston Air Route Traffic Control Center (Boston Center) at 2314. Boston Center cleared Night Air 4 to its requested altitude of FL290 and the en route portion of the flight was uneventful. At 2332, Night Air 4 was handed off at 16,000 feet during its descent to Bradley International Airport, Windsor Locks, Connecticut Approach Control. Approach control identified the airplane, cleared it for a visual approach to runway 33, and at 2336 gave Night Air 4 a turn to position the airplane on final approach at 10 miles from the airport. At 2338:22, Night Air 4 reported that the airplane was on final approach for runway 33, and at 2338:25 the air traffic control tower operator cleared the flight to land. At 2341:18, the control tower operator reported to approach control that there had been an accident at the airport. Fifteen witnesses, who either heard and/or saw the accident, were interviewed, and with the exception of a few minor points, all of the witnesses described basically the same accident sequence. The airplane was on a normal approach to runway 33 with no apparent abnormalities. When the airplane was about 200 feet over the approach lights, an increase in engine thrust was heard and the airplane halted its rate of descent in what two pilot witnesses thought was an apparent attempt to go-around. Immediately afterward, Night Air 4 began what appeared to be a level turn to the right. As the airplane went through about 90° of turn, the wings of the aircraft were nearly vertical to the ground. The airplane's nose dropped below the horizon and the airplane descended into the ground in a nose low attitude. The witnesses stated that they saw an explosion which was followed by intense ground fire. None of the witnesses reported any significant lateral or vertical changes while the aircraft was on short final or during the 90' right turn prior to its descent into the ground. Many witnesses stated that they saw some lights illuminated on the aircraft but none reported seeing the landing lights, located on the landing gear, or the landing gear in the extended position. Witnesses reported no inflight fire, smoke, or airframe separation before the crash. All three occupants were killed.
Crew:
Charles Huffman, pilot,
Ronald Dulay, copilot.
Passenger:
Eldridge Sheetz.