Ellsworth AFB - Ellsworth AFB

Flight / Schedule
Ellsworth AFB - Ellsworth AFB
Aircraft
Learjet C-21ARegistration
84-0097
MSN
35-543
Year of Manufacture
1984
Operator
United States Air Force - USAFDate
February 2, 2002 at 02:30 PM
Type
CRASHFlight Type
Training
Flight Phase
Takeoff (climb)
Crash Site
Airport (less than 10 km from airport)
Crash Location
Ellsworth AFB South Dakota
Region
North America • United States of America
Coordinates
44.1472°, -103.0868°
Crash Cause
Human factor
Narrative Report
On February 2, 2002 at 02:30 PM, Ellsworth AFB - Ellsworth AFB experienced a crash involving Learjet C-21A, operated by United States Air Force - USAF, with the event recorded near Ellsworth AFB South Dakota.
The flight was categorized as training and the reported phase was takeoff (climb) at a airport (less than 10 km from airport) crash site.
2 people were known to be on board, 2 fatalities were recorded, 0 survivors were identified or estimated. This corresponds to an estimated fatality rate of 100.0%.
Crew on board: 2, crew fatalities: 2, passengers on board: 0, passenger fatalities: 0, other fatalities: 0.
The listed crash cause is human factor. The mishap aircraft, call sign Pacer 43, was conducting pattern work operations during an off-station training mission at Ellsworth AFB, SD (RCA). Shortly before impact, the mishap crew was conducting a simulated single-engine approach to runway 31 at Ellsworth AFB. Subsequent analysis showed that there was a significantly greater amount of fuel in the left wing and left wing tip tank than the right. The gross fuel imbalance resulted from an unmonitored transfer of fuel from the right wing and right wing tip tank to the left that was initiated by the crew approximately nine and one-half minutes before impact. As the aircraft approached the point when it would normally transition to a flare, it leveled off and began a climbing turn to the west, toward the tower. It did not touch down prior to the turn, but veered left immediately during the flare, and then rolled back to wings level momentarily as it climbed. The heavier left wing, and application of power to the right engine for the go-around, caused the aircraft to roll back into a steeper left turn, stayed in a climbing left turn with the bank continuing to increase until il rolled through more than 90 degrees of bank. As the aircraft reached the highest point of the climb (approximately 450 feet), the bank angle was more than 90 degrees, and perhaps slightly inverted as the nose dropped and the aircraft began to descend. The aircraft impacted the ground in a grassy field.
Aircraft reference details include registration 84-0097, MSN 35-543, year of manufacture 1984.
Geospatial coordinates for this crash are approximately 44.1472°, -103.0868°.
Fatalities
Total
2
Crew
2
Passengers
0
Other
0
Crash Summary
The mishap aircraft, call sign Pacer 43, was conducting pattern work operations during an off-station training mission at Ellsworth AFB, SD (RCA). Shortly before impact, the mishap crew was conducting a simulated single-engine approach to runway 31 at Ellsworth AFB. Subsequent analysis showed that there was a significantly greater amount of fuel in the left wing and left wing tip tank than the right. The gross fuel imbalance resulted from an unmonitored transfer of fuel from the right wing and right wing tip tank to the left that was initiated by the crew approximately nine and one-half minutes before impact. As the aircraft approached the point when it would normally transition to a flare, it leveled off and began a climbing turn to the west, toward the tower. It did not touch down prior to the turn, but veered left immediately during the flare, and then rolled back to wings level momentarily as it climbed. The heavier left wing, and application of power to the right engine for the go-around, caused the aircraft to roll back into a steeper left turn, stayed in a climbing left turn with the bank continuing to increase until il rolled through more than 90 degrees of bank. As the aircraft reached the highest point of the climb (approximately 450 feet), the bank angle was more than 90 degrees, and perhaps slightly inverted as the nose dropped and the aircraft began to descend. The aircraft impacted the ground in a grassy field.
Cause: Human factor
Occupants & Outcome
Crew On Board
2
Passengers On Board
0
Estimated Survivors
0
Fatality Rate
100.0%
Known people on board: 2
Operational Details
Schedule / Flight
Ellsworth AFB - Ellsworth AFB
Operator
United States Air Force - USAFFlight Type
Training
Flight Phase
Takeoff (climb)
Crash Site
Airport (less than 10 km from airport)
Region / Country
North America • United States of America
Aircraft Details
Similar Plane Crashes
United States Signal Corps - USSC
De Havilland DH.4
The single engine airplane departed Dayton-McCook Field for a local test flight. Shortly after takeoff, the aircraft stalled and crashed, killing both occupants. Crew: Maj Oscar Brindley, Lt Col Henry Damm.
United States Signal Corps - USSC
De Havilland DH.4
Lt. Frank Stuart Patterson, son and nephew of the co-founders of National Cash Register, is killed in the crash of his DH.4M, AS-32098, at Wilbur Wright Field during a flight test of a new mechanism for synchronizing machine gun and propeller, when a tie rod breaks during a dive from 15,000 feet (4,600 m), causing the wings to separate from the aircraft. Wishing to recognize the contributions of the Patterson family (owners of NCR) the area of Wright Field east of Huffman Dam (including Wilbur Wright Field, Fairfield Air Depot, and the Huffman Prairie) is renamed Patterson Field on 6 July 1931, in honor of Lt. Patterson.
United States Signal Corps - USSC
De Havilland DH.4
The aircraft crashed in unknown circumstances.
United States Signal Corps - USSC
De Havilland DH.4
The crew was completing a training mission. At an altitude of about 4,000 feet, the aircraft entered a spin and crashed in an open field near Everman-Barron Field Airport. A crew was killed and the second occupants was injured. The aircraft was destroyed.
U.S. Air Mail Service
De Havilland DH.4
Crashed following an engine failure. Pilot fate unknown.
United States Signal Corps - USSC
De Havilland DH.4
The accident occurred in unknown circumstances.
