# Accident 19980702037789A: Amtr FALCONXP, Mahopac, NY, July 2, 1998

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: July 2, 1998, 20:30 local time
- Place: Mahopac, NY
- Airport: Mahopac Airport
- Damage: Substantial damage
- Phase of flight: To Init Climb(1st Pwr Reduct)
- Operating rules: General operating rules (Part 91)
- Location: 41.3697° N, 73.7407° W: Placed by OpenAirDocs: center of Mahopac, NY, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.3697&lon=-73.7407&mi=10
- Aircraft: NONE (not matched to a registry record)
- Reported make and model: AMTR FALCONXP
- Reported engine: ROTAX ROTAX503
- Fatal injuries: 0
- Pilot flight hours: 840 total, 500 in this make and model, 12 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19980702037789A

## Narrative

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

(-23)PILOT WAS OPERATING A UNREGISTERED, UNCERTIFIED HOMEBUILT AIRCRAFT. AFTER PERFORMING A TOUCH AND GO WITH A STUDENT AT THE CONTROLS.  THE ENGINE FAILED TO TRANSFER POWER TO THE PROPELLER, THE AIRCRAFT LOST ALTITUDE.  STRUCK A TREE AND CRASHED.                                                    (.4)THE PRIVATE PILOT WAS GIVING FLIGHT INSTRUCTION TO A STUDENT PILOT IN THE AIRPLANE WHEN THE ENGINE LOST POWER. ACCORDING TO THE PILOT, AFTER A SIMULATED 'ENGINE OUT' APPROACH TO THE RUNWAY, THE STUDENT PILOT (SP) APPLIED POWER TO GO AROUND.  ABOUT 50 TO 100 FEET ABOVE THE TREES LOCATED AT THE END OF THE RUNWAY, THE PILOT HEARD A LOUD 'SCREECHING' SOUND, WHICH WAS FOLLOWED BY A LOSS OF ENGINE POWER.  DURING THE FORCED LANDING, THE AIRPLANE STRUCK TREES, SPUN AROUND AND IMPACTED THE GROUND.  THE AIRPLANE'S ENGINE CONTINUED TO OPERATE AFTER THE IMPACT, BUT THE PROPELLER WAS NOT TURNING.  EXAMINATION OF THE UNCERTIFIED ENGINE REVEALED, THE CRANKSHAFT HAD SEPARATED BETWEEN THE FRONT AND REAR CYLINDER.  THE PILOT WAS OPERATING THE AIRCRAFT AS AN ULTRALIGHT; HOWEVER THE FAA DETERMINED IT WAS AN UNREGISTERED EXPERIMENTAL AIRPLANE.  THE PILOT POSSESSED A CERTIFICATED REPAIRMAN LICENSE FOR THE  AIRPLANE AND STATED HE INSPECTED AIRPLANE ACCORDING TO MAUFACTURER'S RECOMMENDATIONS. HE DID NOT POSSESS AN AIRFRAME OR POWERPLANT LICENSE.  THE ENIGNE MANUFACTURER OPERATING MAUAL INDICATES THE ENGINE IS UNCERTIFIED AND STATES IN PART 'THIS ENGINE, BY ITS DESIGN, IS SUBJECT TO SUDDEN STOPPAGE!...NEVER FLY THE AIRCRAFT EQUIPPED WITH THIS ENGINE AT LOCATIONS, ALTITUDES, OR OTHER CIRCUMSTANCES FROM WHICH A SUCCESSFUL NO-POWER LANDING CANNONT BE MADE, AFTER SUDDEN ENGINE STOPPAGE.'

## NTSB investigation

None matched to this report by aircraft and date. Search the NTSB's own records: https://data.ntsb.gov/carol-main-public/basic-search

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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