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Accidents · NTSB GAA15CA089 · Final report

Cessna 188 accident near Polson, Montana, May 26, 2015

On May 26, 2015 at about 5:45 pm local time, a 1966 Cessna 188, registered N53141, was substantially damaged in an accident during maneuvering (low-alt flying) near Polson, Montana. It was an aerial application (crop spraying) flight under agricultural flying rules (Part 137). 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 failure to maintain airplane pitch, power, and turn coordination while maneuvering at low altitude, resulting in an aerodynamic stall and a collision with terrain.

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

What the record shows

Date
May 26, 2015 · about 5:45 pm local time
Place
Polson, Montana · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Cessna 188 UNDESIGNAT, built 1966 · all 188s on the register
Registration
N53141 · no longer on the register · serial 188-0120
Damage
Substantial damage
Flight
Aerial application (crop spraying) flight · agricultural flying rules (Part 137)

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

The pilot reported that while maneuvering at low altitude on an aerial application flight, the airplane aerodynamically stalled and impacted terrain, resulting in substantial damage to the left wing of the airplane. The pilot reported no pre-impact mechanical failures or malfunctions 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. Aerodynamic stall/spin during maneuvering (low-alt flying) defining event
  2. Collision with terrain or object (not controlled flight into terrain) during maneuvering (low-alt flying)

The NTSB's findings

  • cause Personnel issues › Task performance › Use of equip/info › Aircraft control › Pilot
  • cause Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Pitch control › Not attained/maintained
  • cause Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Airspeed › Not attained/maintained
  • cause Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Angle of attack › Not attained/maintained

Pilot

  • Certificate: commercial pilot
  • Ratings: single-engine land; instrument: airplane
  • Flight time: 491 hours in all; 131 in this make and model; 30 in the last 90 days; 27 in the last 30 days; 436 as pilot in command
  • Last flight review: February 16, 2015
  • Medical certificate: Class 1
  • Seat: sngl
  • Injury: no injuries

The aircraft

  • Airframe total time: 3,643.8 hours
  • Last inspection: annual inspection, May 9, 2015; 15 hours since
  • Maximum gross weight: 3,300 lb
  • Seats: 1
  • Landing gear: fixed
  • Engine: Cont Motor O-470 SERIES (piston); 2,513 hours total

The flight

  • Departed from: 7S0 Ronan MT at 3:00 pm
  • Destination: PVT Polson MT
  • Flight plan: none

Weather at the time

  • Light: daylight
  • Wind: at 3 knots
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 82°F (28°C), dew point 48°F (9°C)
  • Altimeter: 30.15 inHg
  • Observation at 5:55 pm from MSO, 37 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.