ERA11FA021 · SIAI-Marchetti S.205/22R
SIAI-Marchetti S.205/22R · Accident: loss of engine power (total) while maneuvering
From Republic Airport (FRG) to Republic Airport (FRG)
Event
- NTSB case
- ERA11FA021
- 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
- 1 · 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
SIAI-Marchetti S.205/22R
- Aircraft type
- Siai Marchetti S-205
- 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
- N934W
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Republic Airport (FRG), Farmingdale, NYTo Republic Airport (FRG), Farmingdale, NY
- 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
- Maneuvering · low-altitude flying
- 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
- Not determined › Not determined
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 was conducting a low approach about 300 to 400 feet above the runway when the airplane experienced a total loss of engine power. The pilot initiated a forced landing to a road about 0.25 mile east-northeast of the departure runway. One of the passengers reported that the engine was "missing and surging" prior to the loss of engine power. A witness at the airport noted that the engine noise was smooth and steady as the airplane climbed to an altitude of about 500 to 600 feet above the ground before it suddenly sputtered and went quiet. The pilot reported that, earlier, he had aborted a takeoff due to a low cylinder temperature indication. He said that he believed that the engine may have had a fouled spark plug, which he believed had been corrected during a subsequent engine run-up. One of the passengers reported that the engine had run rough during the aborted takeoff. The airplane was maintained by the pilot and had been operated for about 17 hours since its most recent annual inspection, which was performed about 6 weeks prior to the accident. Postaccident examination of the airframe and engine, which included a carburetor flow check and examination of all spark plugs, revealed no mechanical malfunctions or failures that would have precluded normal operation.
Probable cause
A loss of engine power during a low approach for undetermined reasons.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ERA11FA021
- Event ID
- 20101017X43851
- Case number
- ERA11FA021
- 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: 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: 12034b8332e61b9ba18139441e3857efa819d3cd6e7884ef5bb6d3efc42300cd; retrieved 2026-09-13T21:05:29.062Z.