MIA97LA209 · Grumman American AA-1B
Grumman American AA-1B · Accident: loss of engine power en route
From M72 to an unrecorded destination
Event
- NTSB case
- MIA97LA209
- 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
Grumman American AA-1B
- Aircraft type
- Grumman American AA-1
- 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
- N1493R
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From M72To 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
- En route · climb to cruise
- 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
- 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
- Tree(s)
- 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
- 1 engine › Undetermined
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The airplane had been taken for a test flight to check on the installation of a new propeller. On the test flight the propeller vibrated 'a lot' and the pilot landed to have the propeller adjusted. On the subsequent takeoff, the pilot said at an altitude of about 750 feet mean sea level (msl), the engine lost power and then momentarily was restored. The pilot maneuvered the airplane back to the airport. At an altitude of about 400 feet msl, the airplane's engine lost complete power, and the airplane struck trees. Examination of the engine revealed fuel was present and the fuel in the airplane was clean. The examination of the engine did not reveal any discrepancies, and the cause of the loss of engine power was not determined.
Probable cause
a forced landing due to an undetermined complete loss of engine power, and subsequent impact with tress.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record MIA97LA209
- Event ID
- 20001208X08465
- Case number
- MIA97LA209
- 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: 6a5f0f2dd6d6e5cc1255745a171df7abfc1f9e9ca8073a55ddefe261c5126f20; retrieved 2026-09-22T19:12:11.604Z.