CEN21LA261 · Piper PA32 260
Rocky Mountain Flight School Piper PA32 260 · Accident: fuel starvation en route
From Rocky Mountain Metropolitan Airport (BJC) to an unrecorded destination
Event
- NTSB case
- CEN21LA261
- 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
- Event fatalities
- Unknown
- Ground fatalities
- Unknown
- 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
Piper PA32 260
- Aircraft type
- Piper PA32
- 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
- N3793W
- Operator
- Rocky Mountain Flight School
- Onboard fatalities
- Unknown
- Route
- From Rocky Mountain Metropolitan Airport (BJC), Broomfield, COTo not recorded
- Aircraft age
- About 55 years (built 1966)
- 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
- En route · cruise
- Defining eventThe 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
- 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
- Aircraft › Fluids/miscellaneous hardware
- Personnel issues › Task performance
Approximate · Coordinates from the NTSB case API, not marked as estimated; no uncertainty radius is established.
NTSB narrative
The purpose of the instructional flight was for the pilot to receive a checkout in the airplane. Before the flight, the right wing main fuel tank contained 16-18 gallons of fuel, the left wing main fuel tank contained less than 10 gallons of fuel, and both wingtip tanks were completely full (17 gallons each). The pilot and his flight instructor discussed the fuel status before departure and had agreed to operate the engine on the right wing main tank to correct the fuel imbalance between the tanks during the flight.
The flight consisted of visual flight rules maneuvers and touch-and-go landings, and about 1.1 hour into the flight the airplane had a loss of engine power about 1,000 ft above the ground while in cruise flight. A forced landing was completed to a nearby field, but shortly after touchdown the airplane collided with a berm that caused the airplane to become airborne again. The nose landing gear collapsed and both wings were substantially damaged when the airplane landed hard the second time.
The pilot and his flight instructor both reported that the entire flight had been flown using fuel from the right wing main fuel tank. Neither the pilot nor his flight instructor switched fuel tanks after the loss of engine power because they were focused on the forced landing. The pilot stated that based on the airplane’s performance data, the loss of engine power was likely due to fuel starvation.
An onsite examination of the wreckage revealed that the right wing main fuel tank was intact and contained less than ¼ gallon of fuel. According to the airplane’s owner’s handbook, there was about 1 pint of unusable fuel in each of the 4 fuel tanks. The remaining 3 fuel tanks contained usable fuel. Additionally, there were no mechanical malfunctions identified with the airplane’s fuel system or the engine that would have precluded normal operation.
Probable cause
The flight crew’s improper fuel management that resulted in fuel starvation and the loss of engine power.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CEN21LA261
- Event ID
- 20210611103248
- Case number
- CEN21LA261
- Dataset
- full-current
- Source SHA-256
- 5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
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: local date, investigation status, coordinates, cause areas. Values present in the bulk record are kept.
- The date is the local date; the NTSB stores the UTC date 2021-06-11.
- API snapshot SHA-256: 36c9a892b7f9837f5cf5c990db2cdeb9bbfe862721fe12ede7f602c42ab86979; retrieved 2026-09-16T14:09:19.463Z.