15) IN FLIGHT ICING, U-FIT

Gulfstream 695-A | N965BC

April 13th, 2024 | San Bernadino, California

Accident Location

  • City: San Bernadino
  • State: California
  • Latitude: 34.21064
  • Longitude: -117.34217
  • Airport ID:

Aircraft Info

  • N Number: N965BC
  • Make: Gulfstream
  • Model: 695-A
  • Aircraft Category: Aircraft Single Engine Land
  • Amateur Built: No

Pilot Info

  • PIC Name: Broadbent, Blake
  • Gender: Male
  • Pilot Age: 33
  • Pilot Hours:
  • Flight School: No
  • Instructional Flight: No
  • Pilot Certification: Commercial Pilot
  • IFR Rating: Yes
  • Pilot Error: Yes
  • Pilot Medical: 1st Class Medical
  • Pilot Incapacitation: No

Analysis

  • Date: April 13th, 2024
  • Time: 8:20 PM Local Time
  • Day / Night: Night
  • VMC / IMC: IMC
  • Phase Of Flight: Enroute
  • Total People Onboard: 1
  • PIC Fatality: 1
  • PAX Fatalities: 0
  • Ground Fatalities: 0
  • Total Fatalities: 1
  • NTSB No: WPR24FA124
  • NTSB Travel: Yes
  • AQP Classification: 15) IN FLIGHT ICING, U-FIT

Probable Cause

DTSB: The DTSB determines the Probable Cause of this accident to be Pilot Error, in that the pilot did not operate the available known icing equipment properly, and allowed airframe ice to accumulate in flight. The pilot was very new to the aircraft and had received very little formal training prior to being allowed to operate it in solo flight. Due to the ice accumulation, the pilot likely applied full power and attempted to maintain ATC minimum vectoring altitude of 7400 MSL, thereby raising the pitch of the aircraft, and entering an aerodynamic stall. While the wreckage was found on a steep slope of terrain, it did not appear that the aircraft flew into it from a level flight condition, but rather spun in after entering a full aerodynamic stall.

NTSB: NONE

Recommendation

DTSB: The DTSB recommends that all pilots of all aircraft receive thorough education, training, and conditioning training as they transition to unfamiliar aircraft, and that pilots receive ample and healthy doses of dual instruction in aircraft regarding systems such as Anti-ice and De-ice. The DTSB recommends that all pilots increase placarded DMMS speeds by 20 knots while operating in cruise in icing conditions and carrying ice, and by the same amount to Vref while on approach in icing conditions and carrying ice.

NTSB: NONE

DISCLAIMER: All data and Probable Cause listings are “Probable” only. They are based on opinion and educated speculation, and are for educational purposes only. They may contain incorrect information and are subject to change as new information becomes available.