# Accident 19911011046049A: Hiller UH12E, Palacios, TX, October 11, 1991

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: October 11, 1991, 08:05 local time
- Place: Palacios, TX
- Damage: Substantial damage
- Phase of flight: To Vertical (Helicopter Only)
- Operating rules: Agricultural (Part 137)
- Operator: TMEG
- Location: 29.1902° N, 96.2703° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=29.1902&lon=-96.2703&mi=10
- Aircraft: N4029D, a cancelled registration (https://openairdocs.org/deregistered/N4029D-2018-03-02) (OpenAirDocs)
- Registry model: Hiller UH-12E (registry code 4360122, https://openairdocs.org/model/hiller-uh-12e) (OpenAirDocs)
- Registry engine: Lycoming VO-540 series (registry code 41534, https://openairdocs.org/engine/lycoming-vo-540-series) (OpenAirDocs)
- Reported make and model: HILLER UH12E
- Reported engine: LYC IO540C2C
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 26,000 total
- NTSB investigation: [NTSB FTW92LA007](https://openairdocs.org/ntsb/FTW92LA007) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19911011046049A

## Narrative

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

FAILED TO UNFASTEN A STRAP HOLDING A SKID ON TRAILER. HELICOPTER FELL OVER ON ITS SIDE DURING ATTEMPTED LIFTOFF.

## 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 FTW92LA007](https://openairdocs.org/ntsb/FTW92LA007), Oct 11, 1991: Hiller UH-12E (N4029D), Palacios, TX, substantial damage. Probable cause: THE PILOT'S INADEQUATE PREFLIGHT.

## Other reports on N4029D (1)

Matched to the same aircraft by N-number and date.

- [Accident 19880404007519A](https://openairdocs.org/incident/19880404007519A), Apr 4, 1988: Hiller UH12E (N4029D), La Salle, TX, Substantial damage. Engine quit on a spray run. Attempted to autorotate. Hit and severed tail boom on ground contact. Fuel contaminated

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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