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Accidents · NTSB GAA16CA369 · Final report

Stinson 108 accident near Red Lodge, Montana, July 8, 2016

On July 8, 2016 at about 9:10 pm local time, a 1947 Stinson 108, registered N955C, was substantially damaged in an accident during takeoff near Red Lodge, Montana (Red Lodge 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

A deer running across the runway and impacting the left side of the airplane, resulting in a loss of directional control, a runway excursion, and a ground loop.

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

What the record shows

Date
July 8, 2016 · about 9:10 pm local time
Place
Red Lodge, Montana · Red Lodge · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Stinson 108 3, built 1947 · all 108s on the register
Registration
N955C · no longer on the register · serial 108-3955
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

The pilot of the tailwheel equipped airplane reported that during takeoff he noticed movement from the left as a deer ran onto the runway. He further reported that he applied right rudder to avoid hitting the deer, but the deer impacted the airplane between the left pilot's door and the horizontal stabilizer causing the airplane to veer to the left. The pilot stated that he attempted to recover by applying maximum right brake and right rudder, however it was ineffective and the airplane exited the runway to the left, ground looped, and nosed over. The airplane sustained substantial damage to both wings, empennage and fuselage.  The pilot reported that there were no pre impact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.

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. Wildlife encounter (non-bird) during takeoff defining event
  2. Loss of control on ground during takeoff
  3. Attempted remediation/recovery during takeoff
  4. Runway excursion during takeoff
  5. Nose over/nose down during takeoff
  6. Roll over during takeoff

The NTSB's findings

  • cause Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Directional control › Not attained/maintained
  • cause Environmental issues › Physical environment › Object/animal/substance › Animal(s)/bird(s) › Effect on operation
  • Personnel issues › Task performance › Use of equip/info › Aircraft control › Pilot

Pilot

  • Certificate: commercial pilot
  • Ratings: multi-engine land; single-engine land; single-engine sea; instrument: airplane; instrument: helicopter; rotorcraft: helicopter
  • Flight time: 3,450 hours in all; 1,200 in this make and model; 10 in the last 90 days; 8 in the last 30 days; 3,450 as pilot in command
  • Last flight review: July 3, 2014
  • Medical certificate: Class 3 (with waivers/limitations)
  • Seat: left
  • Injury: no injuries

The aircraft

  • Airframe total time: 2,923 hours
  • Last inspection: annual inspection, February 14, 2016
  • Maximum gross weight: 2,400 lb
  • Seats: 4
  • Landing gear: fixed
  • Engine: Franklin 6A-350-C1R (piston); 499 hours total

The flight

  • Departed from: RED Red Lodge MT at 9:10 pm
  • Destination: BIL Billings MT
  • Flight plan: none
  • Runway 16, 4,000 ft by 75 ft

Weather at the time

  • Light: daylight
  • Wind: from 140° at 14 knots, gusting 19
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 90°F (32°C), dew point 28°F (-2°C)
  • Altimeter: 29.94 inHg
  • Observation at 9:15 pm from KPOY, 28 miles away

Injuries

FatalSeriousMinorNone
Flight crew1

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

The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.

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.