Amateur-built PA-18 225DD accident near Mile Hi Landing Strip, Idaho, August 25, 2011
On August 25, 2011 at about 4:30 pm local time, a amateur-built PA-18 225DD, registered N727WW, was substantially damaged in an accident during landing (flare/touchdown) near Mile Hi Landing Strip, Idaho (Mile Hi 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
The collapse of the left landing gear during landing 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 25, 2011 · about 4:30 pm local time
- Place
- Mile Hi Landing Strip, Idaho · Mile Hi · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built PA-18 225DD
- Registration
- N727WW · no longer on the register · serial PA-0204
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The left landing gear collapsed during landing on a remote grass/turf airstrip. After the landing gear collapsed, the airplane veered to the left and impacted a tree. The pilot stated that there were no mechanical malfunctions or anomalies with the airplane during the flight. The reason for the landing gear collapse was not determined.
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
- Landing gear collapse during landing (flare/touchdown) defining event
The NTSB's findings
- cause Not determined › Not determined › (general) › (general) › Unknown/Not determined
Pilot
- Certificate: private
- Ratings: single-engine land; instructor: airplane single-engine
- Flight time: 6,170 hours in all; 2,170 in this make and model; 67 in the last 90 days; 34 in the last 30 days; 6,170 as pilot in command
- Last flight review: November 4, 2010
- Medical certificate: Class 3 (with waivers/limitations)
- Seat: frt
- Injury: no injuries
The aircraft
- Airframe total time: 675 hours
- Last inspection: condition inspection, July 6, 2011
- Maximum gross weight: 2,150 lb
- Seats: 2
- Landing gear: fixed
- Engine: Lycoming O-360-C4P (piston); 0 hours total
The flight
- Departed from: KU60 Yellow Pine ID at 4:00 pm
- Destination: Mile High Ranch ID
- Flight plan: none
- Runway 19, 1,100 ft by 75 ft
Weather at the time
- Light: daylight
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 64°F (18°C), dew point 0°F (-18°C)
- Observation at 4:30 pm
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 1 |
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 N727WW the same tail number, which may have belonged to a different aircraft at the time
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.