- Date
- November 18, 2023, 12:25 local (19:25 UTC)
- Place
- Hungry Horse, MT · Hunry Horse Reservoir
- Injuries
- 2 minor
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N924RDFlight Design Ctls
- Defining event
- Enroute-cruise: Fuel exhaustion
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- Investigation class
- Class 4 - Basic report with no Prelim publish
- NTSB office
- Western Pacific Region
- Parties
- Federal Aviation Administration
- FAA report
- 20231118017829A
- Case key
- 193473
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The pilot's inadequate fuel planning and improper in-flight decision-making, which resulted in a total loss of engine power due to fuel exhaustion.
Findings · 4
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
About four hours into the repositioning flight, and about six miles from his intended destination, the pilot contacted the tower controller and was informed that the airport was under instrument flight rules (IFR) conditions, and that he was not cleared to land. The pilot made the decision to maneuver to the southeast to ascertain whether they should return to their home airport or land at a nearby airport and wait for the weather to clear. Shortly after departing the area enroute to an alternate airport, the airplane lost engine power. The pilot promptly attempted to restart the engine; however, his efforts were unsuccessful. The pilot subsequently executed a forced landing into a lake resulting in substantial damage to the fuselage. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. He reported that there was no engine roughness or warnings before the engine quit, and it sounded as if the airplane ran out of fuel. He reported that he departed with 26.1 gallons of fuel and, according to the inflight computer, had about 5.72 gallons of remaining fuel when they arrived at the destination airport. In the recommendation section of the NTSB Accident/Incident Reporting Form 6120.1, the pilot listed ways that the accident could have been prevented, to include not relying on fuel management systems.
Aircraft
- Registration
- N924RD
- Reported as
- Flight Design Ctls
- Category
- Airplane
- Serial number
- F-16-01-51
- Built
- 2016
- Airframe hours
- 520
- Engine
- Rotax 912ULS, 100 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Airworthiness certificate
- None
- Last inspection
- Annual · March 29, 2023 · 45 hours before
- Departed
- GTF · Great Fall, MT
- Destination
- GPI · Kalispell, MT
- Equipment
- Angle of attack indicator, Airframe parachute, ADS-B, Stall warning system, Onboard weather, Electronic multifunction display, Electronic flight bag or handheld device, Auto-pilot
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 59
- Injuries
- None
- Certificate
- Sport Pilot
- Airplane ratings
- Single-engine land
- Medical
- Sport pilot
- Last flight review
- June 1, 2019
- Seat
- Left
- Restraint
- 4-point
- Flight hours
- 541 total · 471 in this make and model · 437 as pilot in command · 10 in the last 90 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 10 statute miles
- Lowest ceiling
- 1,200 ft overcast
- Temperature
- 30 °F, dew point 28 °F
- Altimeter
- 29.99 inHg
- Observed at
- KGPI, 11 nm away
- METAR
- SPECI KGPI 181828Z 00000KT 4SM BR OVC007 M01/M02 A2999 RMK AO2 T10061017=
Docket · 2
The files NTSB released with the investigation on October 10, 2024, on NTSB’s docket system: statements, records, photos and specialists’ reports. 8.4 MB in all.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.