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Accidents · NTSB GAA18CA486 · Final report

Amateur-built MUSTANG II accident near Akron, Colorado, August 11, 2018

On August 11, 2018 at about 7:30 pm local time, a 2003 amateur-built MUSTANG II, registered N527JT, was substantially damaged in an accident during takeoff near Akron, Colorado (Gebauer airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The pilot’s improper preflight planning that did not identify the unserviceable runway; his subsequent decision to attempt to takeoff from the rough, grassy runway; and his selection of an abort point with insufficient runway remaining, which resulted in a runway overrun.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
August 11, 2018 · about 7:30 pm local time
Place
Akron, Colorado · Gebauer · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Amateur-built MUSTANG II No Series, built 2003
Registration
N527JT · registry record · serial 129
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

The NTSB's narrative final · quoted from the NTSB record

The pilot reported that, while flying over the grass runway, it appeared "rough but serviceable." During landing, he found the surface was extremely rough with tall weeds. During the subsequent departure, acceleration was "less than normal" due to the vegetation. When the airplane reached the pilot's planned abort point for the runway, he realized that he had misjudged the abort point. He initially thought his selected abort point was about 800 to 1,000 ft before the end of the runway, but it was about 100 to 200 ft before the end of the runway. The airplane overran the runway, crossed a road, and struck a barbed wire fence. The airplane sustained substantial damage to the fuselage and left wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The Federal Aviation Administration Airport Facility Directory for the accident airport, in part, stated: "[Runways] not recommended for [takeoff or landing]."

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

The factual record from the NTSB's investigation tables, in plain English

What happened, in order

  1. Miscellaneous/other during takeoff defining event

The NTSB's findings

  • cause Personnel issues › Action/decision › Info processing/decision › Decision making/judgment › Pilot
  • cause Environmental issues › Physical environment › Terrain › Rough terrain › Decision related to condition
  • cause Personnel issues › Task performance › Planning/preparation › (general) › Pilot
  • cause Personnel issues › Action/decision › Info processing/decision › Identification/recognition › Pilot

Pilot

  • Certificate: airline transport pilot, flight instructor
  • Ratings: multi-engine land; single-engine land; single-engine sea; instructor: airplane single-engine; instructor: glider; instructor: instrument airplane; instrument: airplane; rotorcraft: glider
  • Flight time: 3,280 hours in all; 154 in this make and model; 3,034 as pilot in command; 566 on instruments
  • Last flight review: May 31, 2017
  • Medical certificate: BasicMed
  • Seat: left
  • Injury: no injuries

The aircraft

  • Airframe total time: 278.4 hours
  • Last inspection: condition inspection, November 4, 2017
  • Maximum gross weight: 1,800 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Lycoming O-320-D3G (piston); 0 hours total
  • Operator: Bald Eagle Aviation Llc

The flight

  • Departed from: 07V La Veta CO at 6:15 pm
  • Destination: 5V6 Akron CO
  • Flight plan: VFR
  • Runway 26, 3,000 ft by 70 ft

Weather at the time

  • Light: daylight
  • Wind: from 180° at 13 knots, gusting 21
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 88°F (31°C), dew point 46°F (8°C)
  • Altimeter: 30.20 inHg
  • Observation at 7:53 pm from KAKO, 7 miles away

Injuries

FatalSeriousMinorNone
Flight crew1

Documents from the investigation the NTSB's docket: the evidence folder behind the report

3 documents, released by the NTSB on November 19, 2018. View them here, or download them; the NTSB redacts some personal details before release, and this site shows the NTSB's own titles rather than its file names.

The same docket at the NTSB · documents without a copy here are fetched from the NTSB when you open them.

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.