WPR20LA234 · Montana Coyote
Montana Coyote · Accident: loss of engine power (total) en route
From John Nichols Field Airport (0CL3) to Brown Field Municipal Airport (SDM)
Event
- NTSB case
- WPR20LA234
- 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
- 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
Montana Coyote
- Aircraft type
- Montana COYOTE
- 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
- N125MC
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From John Nichols Field Airport (0CL3), Chula Vista, CATo Brown Field Municipal Airport (SDM), San Diego, CA
- 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
- 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
- Loss of engine power (total)
- 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 › Aircraft power plant
- Aircraft › Aircraft systems
- Aircraft › Fluids/miscellaneous hardware
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot and passenger flew a local flight, landed, and refueled the airplane. After refueling, they departed and, shortly into the airplane’s climb, encountered various fluctuations in power before the engine lost all power. During the subsequent forced landing, the airplane impacted a fence, which resulted in a collapse of the left main landing gear and substantial damage to the left wing. Postaccident examination of the airplane revealed an obstruction in the fuel line from the airplane’s header tank to the engine. At the time of disassembly, the fitting was completely obstructed with brown/red deposits derived from old/evaporated fuel. The fuel type was not determined. The fuel tanks were not equipped with fuel screens and the header tank did not contain any filter or fuel sump to collect these remnants. This evidence suggests that dried fuel in the wing tanks likely formed the blockage in the fuel fitting when the airplane was operated following 14 years of inactivity, which resulted in fuel starvation and a total loss of engine power.
Probable cause
A total loss of engine power due to an obstructed fuel line and fuel starvation, which resulted in a forced landing and collision with a fence. Contributing to the accident was the long duration of aircraft storage that allowed for contaminants to develop and the design of the fuel system that did not include filtration.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR20LA234
- Event ID
- 20200723X12645
- Case number
- WPR20LA234
- 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, cause areas. Values present in the bulk record are kept.
- The date is the local date; the NTSB stores the UTC date 2020-07-23.
- API snapshot SHA-256: 1f9f599d0ef9a89c99bc654e54d3ca4a93d978bfd6953c235288feccade135ef; retrieved 2026-09-16T12:15:37.173Z.