Cherry Point - Cherry Point
Flight / Schedule
Cherry Point - Cherry Point
Aircraft
Grumman G-159 Gulfstream IRegistration
155723
MSN
178
Year of Manufacture
1967
Operator
United States Navy - USNDate
October 16, 1975 at 12:00 AM
Type
CRASHFlight Type
Training
Flight Phase
Takeoff (climb)
Crash Site
Airport (less than 10 km from airport)
Crash Location
Cherry Point MCAS (Cunningham Field) North Carolina
Region
North America • United States of America
Crash Cause
Technical failure
Narrative Report
On October 16, 1975 at 12:00 AM, Cherry Point - Cherry Point experienced a crash involving Grumman G-159 Gulfstream I, operated by United States Navy - USN, with the event recorded near Cherry Point MCAS (Cunningham Field) North Carolina.
The flight was categorized as training and the reported phase was takeoff (climb) at a airport (less than 10 km from airport) crash site.
9 people were known to be on board, 9 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: 7, passenger fatalities: 7, other fatalities: 0.
The listed crash cause is technical failure. Shortly after lift off, a low torque sensing switch failed precipitating an auto feather of an engine. The crew mis-handled the required feathering procedure, allowing the propeller to unfeather and windmill. Subsequently, the crew retracted the flaps. This disabled a spring tab on the rudder which was designed to give additional rudder authority for high power/low airspeed situations. The result of the windmilling propeller and the loss in rudder authority was that V(mca) increased from 101 kts to 138 kts. The airplane rolled inverted and crashed. Witness marks on the operating engine's propeller reportedly indicated that the airplane's speed when it crashed was less than 90 kts. All on board, four crew men, four students and one instructor, were killed.
Aircraft reference details include registration 155723, MSN 178, year of manufacture 1967.
Fatalities
Total
9
Crew
2
Passengers
7
Other
0
Crash Summary
Shortly after lift off, a low torque sensing switch failed precipitating an auto feather of an engine. The crew mis-handled the required feathering procedure, allowing the propeller to unfeather and windmill. Subsequently, the crew retracted the flaps. This disabled a spring tab on the rudder which was designed to give additional rudder authority for high power/low airspeed situations. The result of the windmilling propeller and the loss in rudder authority was that V(mca) increased from 101 kts to 138 kts. The airplane rolled inverted and crashed. Witness marks on the operating engine's propeller reportedly indicated that the airplane's speed when it crashed was less than 90 kts. All on board, four crew men, four students and one instructor, were killed.
Cause: Technical failure
Occupants & Outcome
Crew On Board
2
Passengers On Board
7
Estimated Survivors
0
Fatality Rate
100.0%
Known people on board: 9
Operational Details
Schedule / Flight
Cherry Point - Cherry Point
Operator
United States Navy - USNFlight Type
Training
Flight Phase
Takeoff (climb)
Crash Site
Airport (less than 10 km from airport)
Region / Country
North America • United States of America
