# Accident 19891215051329A: Amtrth THORPT18, Austin, NV, December 15, 1989

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: December 15, 1989, 17:56 local time
- Place: Austin, NV
- Damage: Destroyed
- Phase of flight: Normal Cruise
- Operating rules: General operating rules (Part 91)
- Location: 39.5407° N, 117.1895° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=39.5407&lon=-117.1895&mi=10
- Aircraft: N111GC, a cancelled registration (https://openairdocs.org/deregistered/N111GC-1992-10-23) (OpenAirDocs)
- Registry model: Crawford-Gordon THORP T-18 (registry code 89510D1, https://openairdocs.org/model/crawford-gordon-thorp-t-18) (OpenAirDocs)
- Reported make and model: AMTRTH THORPT18
- Reported engine: LYC O320E2A
- People aboard: 1
- Fatal injuries: 1
- Pilot flight hours: 1,732 total, 1,602 in this make and model
- NTSB investigation: [NTSB SEA90FA030](https://openairdocs.org/ntsb/SEA90FA030) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19891215051329A

## Narrative

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

CRASHED AND BURNED IN MOUNTAINOUS AREA. PROP BLADE HAD FAILED DUE TO FATIGUE.PROP HAD BEEN MODIFIED BELOW STANDARDS

## 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 SEA90FA030](https://openairdocs.org/ntsb/SEA90FA030), Dec 16, 1989: Crawford-Gordon Thorp T-18 (N111GC), Austin, NV, destroyed, 1 fatal. Probable cause: AN IMPROPER MAJOR ALTERATION PERFORMED BY THE PILOT. AS A RESULT OF THIS MODIFICATION, THE PROPELLER FAILED IN FLIGHT.

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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