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Accidents · NTSB SEA01LA156 · Final report

Schweizer G-164B accident near Twin Falls, Idaho, August 22, 2001

On August 22, 2001 at about 3:50 pm local time, a Schweizer G-164B, registered N3632T, was substantially damaged in an accident near Twin Falls, Idaho (Joslin Field). 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

Nose over during the landing roll for undetermined reasons.

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

What the record shows

Date
August 22, 2001 · about 3:50 pm local time
Place
Twin Falls, Idaho · Joslin Field · map
Type
Accident · collision on the ground
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Schweizer G-164B
Registration
N3632T · registry record · serial 772B
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 during the landing roll, at approximately 35 to 40 mph, the aircraft developed a substantial shake. The tail then lifted and the aircraft nosed over and came to rest inverted. After the aircraft was righted and during the tow to the hangar, the brakes were tested and found to function with no evidence of a mechanical failure or malfunction. The pilot later reported that he did not apply the brakes nor did the tires slide.

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: multi-engine land; single-engine land; instrument: airplane
  • Flight time: 13,626 hours in all; 10,857 in this make and model; 377 in the last 90 days; 135 in the last 30 days; 13,091 as pilot in command
  • Last flight review: May 29, 2001
  • Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
  • Seat: ctr
  • Injury: no injuries

The aircraft

  • Airframe total time: 5,400 hours
  • Last inspection: 100-hour inspection, May 5, 2001; 35 hours since
  • Maximum gross weight: 7,850 lb
  • Seats: 1
  • Landing gear: fixed
  • Engine: P&W 1340-AN-2 (piston); 0 hours total

The flight

  • Departed from: TWF Twin Falls ID at 3:00 pm
  • Flight plan: none
  • Runway 7, 8,703 ft by 150 ft

Weather at the time

  • Light: daylight
  • Wind: from 050° at 5 knots
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 66°F (19°C), dew point 54°F (12°C)
  • Altimeter: 30.00 inHg
  • Observation at 3:53 pm from TWF

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 N3632T the same tail number, which may have belonged to a different aircraft at the time

2006-06-17SEA06CA123 · accident near Murtaugh, ID · substantial damage · no injuries
1996-03-13SEA96LA068 · accident near Point Of Rocks, WY · destroyed · fatal
1986-08-14FTW86LRD23 · accident near Lecompte, LA · 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.