WPR18LA280 · Mooney M20J
Aviation Academy Hawaii Mooney M20J · Accident: fuel contamination during initial climb
From Daniel K. Inouye International Airport (HNL) to Kalaeloa Airport (JRF)
Event
- NTSB case
- WPR18LA280
- 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
Mooney M20J
- 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
- N66201
- Operator
- Aviation Academy Hawaii
- Onboard fatalities
- Unknown
- Route
- From Daniel K. Inouye International Airport (HNL), Honolulu, HITo Kalaeloa Airport (JRF), Kapolei, HI
- Aircraft age
- About 41 years (built 1977)
- 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
- Initial climb
- 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 contamination
- 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
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The certified flight instructor (CFI) reported that, during the pre-flight, a small amount of water was drained from the left fuel tank; no water was noted in the sample from the right tank. Following the departure on the instructional flight, the CFI and the pilot receiving instruction conducted several maneuvers before practicing touch-and-go landings; fuel tanks were regularly switched throughout the flight. During the sixth takeoff, with the landing gear and flaps retracted, at about 300 ft above ground level, the engine lost power. The CFI took control of the airplane, switched fuel tanks, and attempted to troubleshoot the engine, but he was unsuccessful. He initiated a forced landing to the runway with the landing gear in the UP position to avoid rolling into unknown grassy terrain. During the postaccident examination, some water was drained from the left fuel tank. The right fuel tank was free of water. The fuel collected from the fuel line going into the fuel injectors also contained some water. The propeller was rotated manually, and the continuity was established throughout the engine. No mechanical issues with the engine were noted at the time. It is likely the engine lost power due to water in the fuel.
Probable cause
Loss of engine power due to water in the fuel lines.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR18LA280
- Event ID
- 20181002X60231
- Case number
- WPR18LA280
- 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. Values present in the bulk record are kept.
- The date is the local date; the NTSB stores the UTC date 2018-09-21.
- API snapshot SHA-256: 65fb318948a7843aeb0948ccd12324b72251ab9362da1a7230ffebc051fc26a5; retrieved 2026-09-16T08:17:57.275Z.