United States of America

Shortly after the initial power reduction during takeoff, the pilot noted a partial loss of power in the right engine. He said he 'went to full power on both engines' and noted an 'extremely high' fuel flow indication to the right engine. He said, 'thinking that the engine was flooding, I placed the boost pump switch from high to off to possibly eliminate the problem with no result. I then placed the pump back to high and tried to decrease the fuel flow by leaning the mixture. This also did not seem to eliminate the problem.' While troubleshooting the problem, he turned to a downwind and stayed in the traffic pattern, but could not maint altitude. Subsequently, a wheels-up landing was made in an area of small trees approximately 1/2 mile before reaching runway 24. An examination of the right engine revealed the spark plugs were wet with fuel and black with soot. Also, its #5 fuel nozzle had been cross-threaded and was knocked out of its hole during impact. During an initial test, the right fuel pressure sensing switch did not sense operating pressure (over 6 psi); this would have resulted in a high boost/fuel flow condition. Later, the switch was tested ok. All nine occupants escaped uninjured.

The Hercules aircraft took off from Travis AFB at 14:45 for the second of a series of local training flights. Approaches and practice landings were carried out at McClellan AFB before returning to Travis. A runway 21L ILS approach and full stop landing were to be made by a 1st officer candidate. A balked landing forced the captain to take over the controls and initiate a go-around. The no. 1 and no. 2 engines both decelerated when throttles were advanced. The aircraft then banked left and struck the airport perimeter fence in a nose-low and steep left-wing low attitude.

The aircraft was on the last leg of a scheduled commuter flight, when it crashed in a heavily wooded area while making a VFR approach to Merrill Field, Anchorage, AK. The captain and his sole passenger were killed in the crash when the airplane struck the ground upside-down in a near vertical attitude. The airplane's copilot, who had deplaned minutes before the accident flight, said he did not see the captain use the aircraft's auxiliary fuel tanks at any time during that evening's earlier flights. The airplane's main fuel tanks hold 100 gallons of useable fuel; it is estimated that the airplane would have consumed slightly more than 100 gallons of fuel at the time of the accident. Ample fuel remained in the auxiliary tanks, but an engine restart cannot be readily accomplished if the auxiliary tanks are not selected prior to the engine's quitting. Both occupants were killed.

After refueling in Denver, the medical evacuation flight was diverted from Aspen to Eagle to enplane the patient. IFR flight to Eagle was uneventful and radar service was terminated after the controller cleared the flight for the lDA-A approach to the Eagle Airport which shows a 239° inbound course. The last radio contact occurred when the crew replied 'we're 8 to 10 out and it's clear ahead' to Eagle radio in answer to a request for a base report. The flight collided with an 8,022 foot msl mountaintop bearing 298°, 3.88 miles from the airport while in the approach configuration. The safety board believes the flight was circling to land on runway 07, and the dark night prevented required visual lookout to avoid terrain obstructions. The Jeppesen approach charts used by the flightcrew did not accurately depict terrain obstructions within the 5-mile radius of the airport as stipulated in their legend. The safety board believes this could have mislead the flightcrew. All three occupants were killed.

The crew of the PA-31T Cheyenne had made one missed approach and the copilot was calling out the altitudes to the pilot. The pilot's reply to the copilot that he was just going to descend to 400 feet. The approach minimums were published for an MDA of 660 feet plus 80 feet when the control zone is not in effect. The aircraft flew into rising terrain. The copilot suffered minor injuries, the aircraft was destroyed due to impact and fire.

At 1:20 p.m. on Friday, March 13, 1987, a B-52 Stratofortress and a KC-135 Stratotanker took off from Fairchild Air Force Base (AFB) to practice aerial maneuvers for a 15-minute air show scheduled on Sunday, May 17, Fairchild's annual Aerospace Day. The show was to be the debut of a new aerobatics team dubbed the Thunderhawks, the brainchild of General John T. Chain Jr., commander-in-chief of the Strategic Air Command (SAC). Its purpose was to demonstrate the capabilities of SAC’s large aircraft through a series exciting routines that included a low-level refueling simulation, high-bank turns, and flybys down the runway. Colonel Thomas J. Harris, commander of the 92nd Bombardment Wing at Fairchild AFB had been assigned the responsibility for the Thunderhawks’ creation and development in December 1986. The KC-135A-BN Stratotanker, No. 60-0361, had three instructor pilots aboard the aircraft: Lieutenant Colonel Michael W. Cornett, Captain Christopher Chapman, and Captain Frank B. Johnson. But no one on the ground at Fairchild knew who was actually in command of the aircraft when it took off. Also on board plane were two navigators, Captain James W. Litzinger and First Lieutenant Mark L. Meyers, and refueling-boom operator, Staff Sergeant Rodney S. Erks. The KC-135 had just taken off from runway 23, in tandem with the B-52, and was executing a steep left-hand turn when it suddenly rolled from an intended 45-degree bank to almost 90 degrees, stalling the two engines on the left wing. The crew managed to level the aircraft, but it was flying too low and slow to recover. The plane crashed landed in an open area north of the flightline, behind three large hangars, narrowly missing the base’s bombing and refueling squadron offices. It skidded through a security fence, across an access road, and killed Senior Master Sergeant Paul W. Hamilton, a member of the Thunderhawks on his day-off from flying, who was sitting in his car watching. The aircraft traveled for another 200 yards, then hit an unmanned weather radar tower and burst into flames. During the journey, the tail section separated from the fuselage as well as the wings, engines, and wheels. One wing, ripped off by the collision with the radar tower, landed 50 yards beyond the burning wreckage. Within minutes, Fairchild’s crash teams were on scene, fighting the fire caused by spilled jet fuel. Spokane International Airport, four miles east of the base, dispatched a crash truck and the Spokane Fire Department mobilized an entire engine company to assist in battling the blaze. Because of the toxic fumes and dangerous flare-ups, reporters and photographers were not permitted near the scene. It took firefighters more than three hours to extinguish the flames and hot-spots from the crash. Searchers found the bodies of five crewmen in the forward section of the blackened fuselage. The body of the sixth crew member was finally found late Friday night, tangled inside the cockpit wreckage. It wasn’t discovered immediately because the recovery teams were being careful to safeguard the crew compartment for the Air Force accident investigators.
Those killed were:
Cpt Christophe L. Chapman, pilot,
Lt Col Michael W. Cornett, pilot,
S/Sgt Rodney Scott Erks, refueling-boom operator,
SM/Sgt Paul W. Hamilton, refueling-boom operator,
Cpt Frank B. Johnson, pilot,
Cpt James W. Litzinger, navigator,
1st Lt Mark L. Myers, navigator.
Source: Daryl C. McClary via https://www.historylink.org/File/8871

N4581E was operating under 14 cfr 135 carrying cargo. The pilot stated that he departed VFR and had '7 to 10' miles visibility at the accident site. Witnesses at and near the accident site stated that heavy snow was falling at the time of the accident and the visibility was one mile or less. The aircraft struck a 2 story duplex in a light wing low attitude, 18 feet agl. Post crash exam of the aircraft and engines revealed no evidence of mechanical malfunction or failure. The pilot had been grounded for a couple of weeks prior to the accident due to medical problems. There was no record that indicated the pilot had been route checked for operations at Aspen.

At 14:30 the flight was cleared for a runway 21R visual approach and was cleared to land one minute later, At a height of 60-70 feet the aircraft suddenly yawed violently to the left and banked left 80-90° in a descent. The aircraft then rolled right and struck the ramp area 1,010 feet inside and to the left of the runway 21R threshold. It then skidded 398 feet, struck three ground support vehicles in front of Gate F10 at Concourse F and caught fire. Both pilots and seven passengers were killed, 10 other occupants were injured.

The aircraft was found crashed in shallow water near Key Largo, FL. Attempts to locate the pilot or current operator were fruitless. The circumstances surrounding the crash and the cause are unknown.

The aircraft was on an emergency medical service (ems/medevac) flight with a pilot and a flight nurse aboard to transport a maternity patient from Flagstaff to Phoenix. During a night arrival, the pilot began a VOR-A approach in IMC, then he reported a problem with his avionics and elected to make a missed approach. During the missed approach, he said that he 'lost' an inverter, then reported the gyros were inoperative. Radar vectors were being provided when he stated 'we have big trouble here.' Soon thereafter, radar and radio contacts were lost and the aircraft crashed approximately 7 miles southeast of the airport. During impact, the aircraft made a deep crater and was demolished. No preimpact engine or airframe failure was found. An investigation revealed the #2 (copilot's) attitude indicator was inoperative on the previous flight. A discrepancy report was taken to the avionics department, but the requested entry was not made in the aircraft form-4. The pilot took off before corrective action was taken. The operations manual requested 1,000 hours multi-engine time as pic and training by esignated cfi's. The pilot had approximately 837 hours multi-engine time, recorded 9 training flights in N6858S with non-designated instructors, completed a part 135 flight check on 2/17/88. Both occupants were killed.