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WPR14CA047 · Aviat Aircraft Inc A 1B B

9 Nov 2013 · LaGrange, WY, United States Possible conflict

Aviat Aircraft Inc A 1B B · Accident during landing

From Vance Brand Airport (LMO) to LaGrange, WY

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Narrative check · The NTSB narrative appears to contradict this record's location. Values are shown as recorded, not corrected; compare with the narrative.

Event

NTSB case
WPR14CA047
Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
Accident
InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
Completed
API-reported fatalities
0 · all aircraft and ground
Ground fatalities
Unknown
OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
General aviation
WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
Visual Meteorological Cond

Aviat Aircraft Inc A 1B B

Aircraft type
Aviat A-1
Category
Airplane
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
N510MA
Operator
Unknown
Onboard fatalities
Unknown
Route
From Vance Brand Airport (LMO), Longmont, COTo LaGrange, WY
Aircraft age
About 8 years (built 2005)
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 91: General Aviation
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
Landing · landing roll
Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
Miscellaneous/other
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Substantial

Cause areas

  • Personnel issues › Action/decision

Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.

NTSB narrative

The pilot reported that after touchdown on the grass/sod airstrip, the landing roll was normal for about 100 feet, but then the airplane came to an abrupt stop, like it had hit something. The airplane nosed over substantially damaging the rudder and wings.

The pilot and ranch personnel inspected the landing area and followed the airplane's tracks back toward the point of touchdown. They found a large hole, likely dug by an animal, approximately 24" deep, and in line with the airplane's right tire track. The pilot said he did not see the hole when flying downwind, nor on the base leg, or final approach.

The pilot reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Probable cause

The pilot's decision to land on a rough surface with hidden obstructions (holes).

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record WPR14CA047
Event ID
20131109X05102
Case number
WPR14CA047
Dataset
full-current
Source SHA-256
5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
  • Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
  • Filled from the NTSB case API where the bulk record had no value: investigation status, coordinates. Values present in the bulk record are kept.
  • The date is the local date, which is the same as the UTC date the NTSB stores.
  • API snapshot SHA-256: ee95e61bfcf3166e13655be3c8f700dc6663aeb261abacfb8086938b846ff365; retrieved 2026-09-15T23:05:42.838Z.