# Accident 20170713009069A: Aviat Aircraft Inc A-1B, Herriman, UT, July 13, 2017

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: July 13, 2017, 09:40 local time
- Place: Herriman, UT
- Airport: South Valley Regional
- Damage: Destroyed
- Phase of flight: Maneuver
- Operating rules: General operating rules (Part 91)
- Location: 40.4856° N, 112.1736° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=40.4856&lon=-112.1736&mi=10
- Aircraft: N211AM, a cancelled registration (https://openairdocs.org/deregistered/N211AM-2020-05-29) (OpenAirDocs)
- Registry model: Aviat A-1B (registry code 2210406, https://openairdocs.org/model/aviat-a-1b) (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: AVIAT AIRCRAFT INC A-1B
- Reported engine: LYCOMING O&VO-360 SER
- People aboard: 2
- Fatal injuries: 2
- Other injuries: 0
- Pilot certificates: Airline transport, commercial pilot, flight instructor
- Pilot flight hours: 835 total
- NTSB investigation: [NTSB WPR17FA149](https://openairdocs.org/ntsb/WPR17FA149) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20170713009069A

## Narrative

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

PILOTS DEPARTED SOUTH VALLEY REGIONAL AIRPORT (KU42).  THE AIRCRAFT CLIMBED AND REACHED FL058 15:41:28Z.  THE AIRCRAFT REMAINED BETWEEN FL058 AND FL060 AT SPEEDS NEAR 100KTS UNTIL RADAR WAS LOST AT 15:47:20Z.  TROOPER WATKINS, ALSO A PRIVATE PILOT, WHILE DRIVING ON THE CANYON ROAD OBSERVED THE AIRCRAFT WELL BELOW HIM AT AN ESTIMATED 200-300 FEET ABOVE THE TERRAIN AT NEARLY A 90 DEGREE ANGLE WITH THE NOSE DOWN AT A VERY SLOW AIRSPEED.  THE AIRCRAFT STALLED, ENTERED A SPIN TO THE RIGHT, AND IMPACTED THE GROUND AT 7,352 FEET MSL, NEARLY 2,000 FEET BELOW THE RIDGE LINE AT AN ELEVATION OF 9,370 FEET.

## 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 WPR17FA149](https://openairdocs.org/ntsb/WPR17FA149), Jul 13, 2017: Aviat A (N211AM), Herriman, UT, destroyed, 2 fatal. Probable cause: The flight instructor's decision to conduct a low-altitude flight into a box canyon in high density altitude conditions and his failure to maintain airspeed while maneuvering to escape the canyon,…

## Other reports on N211AM (1)

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

- [Accident 20130804013669A](https://openairdocs.org/incident/20130804013669A), Aug 4, 2013: Aviat Aircraft Inc A-1B (N211AM), West Jordan, UT, Substantial damage. During landing nose of airplane yawed to the left. Pilot overcorrected and ground looped the aircraft to the right.

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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