# Accident 19980131002749A: Amtr EXEC, Stayton, OR, January 31, 1998

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: January 31, 1998, 14:00 local time
- Place: Stayton, OR
- Damage: Destroyed
- Phase of flight: Practice Training Manuevers
- Operating rules: General operating rules (Part 91)
- Location: 44.8091° N, 122.7194° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=44.8091&lon=-122.7194&mi=10
- Aircraft: N50499, a cancelled registration (https://openairdocs.org/deregistered/N50499-2001-05-04) (OpenAirDocs)
- Registry model: Sherman Evan EXEC (registry code 05605IW, https://openairdocs.org/model/sherman-evan-exec) (OpenAirDocs)
- Reported make and model: AMTR EXEC
- Reported engine: AMTRRW ROTWY152D
- People aboard: 2
- Fatal injuries: 2
- Pilot flight hours: 2,500 total
- NTSB investigation: [NTSB SEA98LA033](https://openairdocs.org/ntsb/SEA98LA033) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19980131002749A

## Narrative

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

PIC OR STUDENT MADE ABRUPT CONTROL MOVEMENTS. MAIN ROTORS SEVERED TAILBOOM.(.4)THE AMATEUR-BUILT HELICOPTER COLLIDED WITH TERRAIN AFTER IN-FLIGHT SEPARATION OF ITS TAIL BOOM AND TAIL ROTOR WHILE MANEUVERING. WITNESSES DESCRIBED THE HELICOPTER MAKING ABOUT 4 PASSES OVER THE FIELD AT ABOUT 500 FEET ABOVE THE SURFACE.  ON THE LAST PASS, THERE WAS A HARD YAW TO THE RIGHT; THE HELICOPTER THEN STRAIGHTENED OUT, PITCHED INTO A FLARE, THEN THE TAIL CAME UP AND THE MAIN ROTOR STRUCK THE TAIL-BOOM.  THE TAIL-BOOM, TAIL ROTOR, AND BUBBLE CANOPY SEPARATED FROM THE HELICOPTER.  THE MAIN WRECKAGE WAS LOCATED ABOUT 300 FEET FROM THOSE COMPONENTS.                                   (-23)PIC STUDENT MADE ABRUPT MANEUVERS WITH THE HELICOPTER CAUSING THE MAIN ROTOR BLADE TO SEVER THE TAIL BOOM.

## 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 SEA98LA033](https://openairdocs.org/ntsb/SEA98LA033), Jan 31, 1998: Sherman Executive (N50499), Stayton, OR, destroyed, 2 fatal. Probable cause: Main rotor strike and separation of the tail boom for undetermined reasons.

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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