ANC98LA081 · Aeronca 15AC
Aeronca 15AC · Accident: total loss of engine power (non-mechanical) during initial climb
Event
- NTSB case
- ANC98LA081
- 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
Aeronca 15AC
- Aircraft type
- Aeronca 15
- 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
- N1023H
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From not recordedTo 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
- Initial climb
- 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
- Fuel system, selector/valve › Improper
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The certificated commercial pilot was departing a remote area in a tail wheel equipped airplane. The pilot reported the right fuel tank contained nine gallons of fuel, the left fuel tank contained 6 gallons, and the right fuel tank was selected. The airplane did not have a fuel selector position for 'Both' fuel tanks. The airplane did not have a header tank installed in the fuel system. The fuel tanks do not contain any internal baffles. The pilot said a crosswind was blowing from the west about 15 knots, and that during the initial climb, a gust of wind 'pushed the airplane sideways.' He said the sideways motion sloshed fuel away from the right fuel tank line, and the engine quit about 150 feet above the ground. He reported he switched the fuel selector to the left fuel tank, but the engine did not restart. The airplane's original fuel selector valve was an 'ON/OFF' valve, and selection of a particular tank was not possible. The accident airplane's fuel valve was changed in the past to a three position valve having 'LEFT', 'RIGHT', and 'OFF.' The installation of the valve was approved by an airplane mechanic and an FAA inspector.
Probable cause
The loss of engine power due to fuel starvation, and an improper fuel selector valve. Factors in the accident were turbulent wind conditions, the improper replacement of the fuel selector valve by an airplane mechanic, and the failure of an FAA inspector to ensure the approval of the fuel selector valve was suitable for the fuel system design.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ANC98LA081
- Event ID
- 20001211X10218
- Case number
- ANC98LA081
- 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: b443f9f6135b34c6a15972c14b3ad3f8a92333debe01a42a06f8987769288a30; retrieved 2026-09-22T17:40:56.584Z.