# Accident 20020421007679A: Amtr OSPREY2, Lincoln, MT, April 21, 2002

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: April 21, 2002, 10:30 local time
- Place: Lincoln, MT
- Airport: Lincoln Airport
- Damage: No damage
- Operating rules: General operating rules (Part 91)
- Location: 46.4805° N, 116.1210° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=46.4805&lon=-116.1210&mi=10
- Aircraft: N56GB, registered now (https://openairdocs.org/aircraft/N56GB) (OpenAirDocs)
- Registry model: Brunger OSPREY II (registry code 9570520, https://openairdocs.org/model/brunger-osprey-ii) (OpenAirDocs)
- Registry engine: Lycoming 0-320 series (registry code 41508, https://openairdocs.org/engine/lycoming-0-320-series) (OpenAirDocs)
- Reported make and model: AMTR OSPREY2
- NTSB investigation: [NTSB SEA02LA071](https://openairdocs.org/ntsb/SEA02LA071) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20020421007679A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) COMMERCIAL PILOT DAVID PARKER WAS ON HIS MAIDEN FLIGHT IN THE EXP. OXPREY II AMPHIBOUS AIRCRAFT WITH 80 TOTAL HOURS TOTAL TIME ON IT. HE HAD BEEN FLYING THE AIRCRAFT FOR 45 MINUTES PRACTICING FLIGHT MANEUVERS AND DECIDED TO DO A LONG APPROACH TO RUNWAY 9 AT ORFINO, ID. MR. PARKER WAS TESTING LOW TO MID RANGE POWER SETTINGS WHEN THE 0-320 LYCOMING SPUTTERED FOR A SHORT TIME. MR. PARKER IMMEDIATELY CHECKED CARB HEAT AND VERIFIED IT'S POSITION BY MOVING THE LEVER BACK AND FORTH TO ENSURE HE HAD TURNED IT ON, AND ADDED POWER. THE ENGINE THEN QUIT ENTIRELY. PARKER PARTIALLY RAISED THE MECHANICAL GEAR SYSTEM, MADE A SMALL COURSE CORRECTION AND LANDED POWER OFF IN THE RIVER NEXT TO THE AIRPORT CAUSING SUBSTANTIAL DAMAGE TO THE RIGHT WING AND RUDDER. THE PILOT WAS NOT INJURED. INVESTIGATION HAS REVEALED THAT THE CAUSE OF THE CARBURETOR ICE IS INSUFFICIENT DESIGN OF THE CARB HEAT SYSTEM ON THIS EXPERIMENTAL AIRCRAFT. OWNER COUNSELED TO REDESIGN THE SYSTEM TO BE EQUIVALENT TO CARB HEAT SYSTEMS IN TYPE CERTIFICATED AIRCRAFT WITH THE SAME 0-320 LYCOMING ENGINE INSTALLED.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB SEA02LA071](https://openairdocs.org/ntsb/SEA02LA071), Apr 21, 2002: Brunger Osprey II (N56GB), Orofino, ID, substantial damage. Probable cause: The aircraft's inadequate carburetor heat air box system, leading to an accumulation of ice in the carburetor throat during final approach to landing. Factors include carburetor icing conditions, the…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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