MIA05LA103 · American General Aircraft AG-5B
American General Aircraft AG-5B · Accident: loss of engine power on approach
From Haller Airpark (7FL4) to Northeast Florida Regional Airport (KSGJ)
Event
- NTSB case
- MIA05LA103
- 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
American General Aircraft AG-5B
- Aircraft type
- American General AG-5
- 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
- N1193G
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Haller Airpark (7FL4), Green Cove Sprg, FLTo Northeast Florida Regional Airport (KSGJ), St. Augustine, FL
- 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 final
- 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
- Loss of engine power
- 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
No findings designated as a cause are recorded in the NTSB data yet.
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
The pilot stated that the preflight, takeoff, and flight en route to the St. Augustine Airport were normal. He contacted the tower when the flight was about 10 miles west and was advised to fly left base for runway 31. The tower cleared him to land when the controller had a visual with the aircraft, and he turned base at about 1,200 feet. He slowed the airplane and lowered flaps, and while on final approach he applied power to adjust the sink rate but the throttle "... was just loose in my hand (like it completely disconnected from the carburetor)." Unable to increase power, he advised the tower of the situation, and after recognizing that he was unable to land on the runway, ditched the aircraft in a marsh short of the runway. The airplane flipped inverted during touchdown and he exited and signaled to rescue personnel that he was okay. According to the FAA airworthiness inspector who examined the airplane, the carburetor linkage separated from the carburetor at the ball assembly. Examination of the ball assembly revealed no signs of excessive wear. No determination was made as to the reason for the separation.
Probable cause
The separation of the throttle control for undetermined reasons, and the unsuitable terrain encountered by the pilot during the forced landing, resulting in a nose-over after touchdown.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record MIA05LA103
- Event ID
- 20050516X00619
- Case number
- MIA05LA103
- 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, coordinates. 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: a4fe93ea8e495b2c20dc3a94bc2b513555bfc3f14d83a02342ccf1f33e1258bb; retrieved 2026-09-22T05:56:36.617Z.