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Accidents · NTSB SEA94LA132 · Final report

Piper PA-12 accident near Nashua, Montana, May 27, 1994

On May 27, 1994 at about 5:00 pm local time, a Piper PA-12, registered N3960M, was substantially damaged in an accident near Nashua, Montana. It was an aerial application (crop spraying) flight under agricultural flying rules (Part 137). 1 person was seriously injured. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

AIRSPEED WAS NOT MAINTAINED. FACTORS INCLUDE AN INADVERTENT STALL.

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

What the record shows

Date
May 27, 1994 · about 5:00 pm local time
Place
Nashua, Montana · map
Type
Accident
Injuries
1 person was seriously injured.
Weather
visual conditions (good weather)
Aircraft
Piper PA-12 · all PA-12s on the register
Registration
N3960M · registry record · serial 12-2843
Damage
Substantial damage
Flight
Aerial application (crop spraying) flight · agricultural flying rules (Part 137)

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

WHILE MANEUVERING DURING AN AERIAL APPLICATION FLIGHT, THE PILOT WAS TURNING AND STALLED THE AIRCRAFT. THE AIRPLANE DESCENDED AND IMPACTED THE GROUND, COLLAPSING THE LANDING GEAR AND CAUSING SUBSTANTIAL DAMAGE.

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

Pilot

  • Certificate: private
  • Ratings: single-engine land
  • Flight time: 700 hours in all; 400 in this make and model; 15 in the last 30 days; 600 as pilot in command
  • Medical certificate: Class 3 (expired)
  • Seat: frt

The aircraft

  • Airframe total time: 1,877 hours
  • Last inspection: annual inspection, November 3, 1992; 25 hours since
  • Maximum gross weight: 1,625 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Lycoming O-320-B2B (piston); 0 hours total

The flight

  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: daylight
  • Wind: from 135° at 4 knots, gusting 6
  • Visibility: 99 statute miles
  • Sky: clear
  • Temperature: 81°F (27°C), dew point 0°F (-18°C)

Injuries

FatalSeriousMinorNone
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.

Other NTSB records under N3960M the same tail number, which may have belonged to a different aircraft at the time

2022-05-14WPR22LA177 · accident near Enterprise, OR · substantial damage · no injuries

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.