# Accident 19910705026429A: Amtrth THORPT18, Winberly, TX, July 5, 1991

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: July 5, 1991, 13:18 local time
- Place: Winberly, TX
- Damage: Substantial damage
- Phase of flight: Roll-Out (Fixed Wing)
- Operating rules: General operating rules (Part 91)
- Aircraft: N83MK, a cancelled registration (https://openairdocs.org/deregistered/N83MK-2006-03-07) (OpenAirDocs)
- Registry model: Lipscomb Karl THORP T-18CW (registry code 89510H7, https://openairdocs.org/model/lipscomb-karl-thorp-t-18cw) (OpenAirDocs)
- Registry engine: Lycoming O&VO-360 series (registry code 41514, https://openairdocs.org/engine/lycoming-o-vo-360-series) (OpenAirDocs)
- Reported make and model: AMTRTH THORPT18
- Reported engine: LYC O360*
- People aboard: 1
- Fatal injuries: 0
- NTSB investigation: [NTSB FTW91LA117](https://openairdocs.org/ntsb/FTW91LA117) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19910705026429A

## Narrative

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

FAILED MAINTAIN CENTER OFF NARROW GRASS STRIP LANDING. WING HIT TALL WEEDS VEERED INTO ANT MOUND. FLIPPED OVER.

## 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 FTW91LA117](https://openairdocs.org/ntsb/FTW91LA117), Jul 5, 1991: Thorp T-18CW (N83MK), Wimberley, TX, substantial damage. Probable cause: THE FAILURE OF THE AIRPORT PERSONNEL TO MAINTAIN THE AIRSTRIP IN AN OPERABLE CONDITION AND THE PILOTS FAILURE TO MAINTAIN RUNWAY ALIGNMENT ON TOUCHDOWN.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.