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Accidents · NTSB CHI97LA013 · Final report

Piper PA-18 accident near Alliance, Nebraska, October 23, 1996

On October 23, 1996 at about 10:30 pm local time, a Piper PA-18, registered N3939Z, was substantially damaged in an accident near Alliance, Nebraska (Alliance Municipal airport). It was an instructional flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

the instructor-pilot's inadequate supervision by not taking timely action after the student started losing directional control. A factor was the loss of directional control by the student pilot.

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

What the record shows

Date
October 23, 1996 · about 10:30 pm local time
Place
Alliance, Nebraska · Alliance Municipal · map
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Piper PA-18 · all PA-18s on the register
Registration
N3939Z · registry record · serial 18-7785
Damage
Substantial damage
Flight
Instructional flight · general aviation rules (Part 91)

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

The instructor-pilot reported that the airspeed was a 'little fast' during the landing transition. At touchdown the airplane started veering right. Then the student overcorrected and the aircraft veered off the runway to the left. The instructor-pilot reported that he came on the controls; the airplane entered a ground loop and the left wing impacted the ground.

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: commercial pilot
  • Ratings: single-engine land; instructor: airplane single-engine; instrument: airplane
  • Flight time: 3,150 hours in all; 400 in this make and model
  • Medical certificate: Class 2 (valid medical--no waivers/lim.)
  • Seat: rear

The aircraft

  • Airframe total time: 1,056 hours
  • Last inspection: annual inspection, May 1, 1996; 82 hours since
  • Maximum gross weight: 1,500 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Lycoming O-320-A2B (piston); 0 hours total

The flight

  • Departed from: AIA at 8:30 pm
  • Flight plan: none
  • Runway 8, 6,342 ft by 150 ft
  • A second pilot was aboard

Weather at the time

  • Light: daylight
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 16°F (-9°C), dew point 0°F (-18°C)

Injuries

FatalSeriousMinorNone
Crew2

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.