FTW99LA010 · Mooney M20A
Mooney M20A · Accident: total loss of engine power (non-mechanical) on approach
From HSD to an unrecorded destination
Event
- NTSB case
- FTW99LA010
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 0 · all aircraft and ground
- Ground fatalities
- 0
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Mooney M20A
- Aircraft type
- Mooney M20
- Category
- Airplane
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N6534B
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From HSDTo not recorded
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Approach · VFR pattern downwind
- First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Total loss of engine power (non-mechanical)
- Also codedOther events the NTSB coded in the sequence, such as a wire strike after a loss of power. Flight Findings uses them for its kinds of event. Glossary
- Fuel starvation
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Fluid, fuel › Starvation
- Pilot in command › Fuel tank selector position, improper
Approximate · Estimated position: the centre of Oklahoma City, OK, the place the record names. Not the accident site.
NTSB narrative
The engine lost power soon after departing from runway 35 at an altitude of 400 to 500 feet AGL. The pilot was aware during the preflight inspection that the left main fuel cell was 3/4 full and the right tank was very low on fuel. Prior to takeoff, the pilot inadvertently switched the fuel selector to the right fuel tank. The pilot assumed that the engine had malfunctioned and did not switch the fuel selector to the fullest tank. The 400 hour pilot landed the airplane in an open pasture with the landing gear extended. During the landing roll, the airplane collided with a terrace, collapsing the landing gear. According to local law enforcement personnel that responded to the accident site, the pilot reported that 'the airplane ran out of fuel;' however, the left main fuel cell was approximately 3/4 full. The pilot added that the 1959 vintage airplane was equipped with a single fuel gauge controlled by a two-position toggle switch for both fuel cells.
Probable cause
The loss of engine power due to fuel starvation as result of the pilot's improper placement of the fuel tank selector switch. A factor was the lack of suitable terrain for the pilot to execute the forced landing.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record FTW99LA010
- Event ID
- 20001211X11260
- Case number
- FTW99LA010
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: 71ea4e0ce5c18682a0cf42aefd932ff1da0c7c092e5bd1f5380d41ef4a156d3d; retrieved 2026-09-22T16:29:58.244Z.