# Accident 19980128006179A: Amtr MINI500, Newberg, OR, January 28, 1998

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: January 28, 1998, 15:50 local time
- Place: Newberg, OR
- Airport: Sportsman Airpark Airport
- Damage: Substantial damage
- Phase of flight: Forced/Precautionary Landing
- Operating rules: General operating rules (Part 91)
- Location: 45.3207° N, 122.9800° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=45.3207&lon=-122.9800&mi=10
- Aircraft: N500YY, a cancelled registration (https://openairdocs.org/deregistered/N500YY-2016-08-16) (OpenAirDocs)
- Registry model: Raser Ralph W MINI 500 (registry code 05604JI, https://openairdocs.org/model/raser-ralph-w-mini-500) (OpenAirDocs)
- Registry engine: Bombardier ROTAX (ALL) (registry code 09050, https://openairdocs.org/engine/bombardier-rotax-all) (OpenAirDocs)
- Reported make and model: AMTR MINI500
- Reported engine: ROTAX ROTAX582UL
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 22,000 total, 48 in this make and model, 100 in the last 90 days
- NTSB investigation: [NTSB SEA98LA030](https://openairdocs.org/ntsb/SEA98LA030) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19980128006179A

## Narrative

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

ENGINE QUIT ON LIFTOFF. AUTOROTATED YAWING ON TOUCHDOWN. SKID COLLAPSED. HELICOPTER ROLLER OVER. (.4)THE PILOT REPORTED THAT HE HAD JUST LIFTED OFF AND ATTAINED AN ALTITUDE OF ABOUT 20 FEET, WHEN THE ENGINE EXPERIENCED A LOSS OF POWER.  THE PILOT INITIATED AN AUTOROTATION NEAR THE END OF THE AIRPARK.  THE PILOT STATED THAT THE HELICOPTER WAS YAWED SLIGHTLY TO THE LEFT ON TOUCHDOWN TO A PLOWED MUDDY AREA.  THE RIGHT SIDE LANDING SKID COLLAPSED AND THE HELICOPTER ROLLED OVER.  INSPECTION OF THE ENGINE REVEALED THAT ONE OF THE TWO CYLINDERS WOULD NOT HOLD COMPRESSION. FURTHER INSPECTION FOUND EVIDENCE OF OVERHEATING AND DAMAGE TO THE RINGS ON THE PISTON.  THE PILOT REPORTED THAT THE ENGINE HAD BEEN EXPERIENCING HEATING PROBLEMS, AND THAT HE HAD ALSO MODIFIED THE CARBURETOR.                                                                  (-23)PILOT DEPARTED NEWBERG, OR AIRPORT.  AT 20 FT. ALTITUDE THE ENGINE SEIZED.  PILOT AUTOROTATED INTO A PLOWED FIELD, WITH APPROX. 20 CRAB ANGLE.  ROLLED THE HELICOPTER TO THE RIGHT WHEN THE SKID FAILED.

## 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 SEA98LA030](https://openairdocs.org/ntsb/SEA98LA030), Jan 28, 1998: Raser Mini 500 (N500YY), Newberg, OR, substantial damage. Probable cause: a power loss resulting from overtemperature of a cylinder. The pilot's operation with known deficiencies was a factor.

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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