Maule M-5-235C accident near Boise, Idaho, July 12, 1986
On July 12, 1986 at about 7:15 pm local time, a Maule M-5-235C, registered N5636D, was substantially damaged in an accident near Boise, Idaho (Boise Air Terminal airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 4 people were on board or involved. The weather was visual conditions (good weather).
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The NTSB's probable cause their words, unchanged
The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.
Source: NTSB aviation accident database, copy made October 4, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- July 12, 1986 · about 7:15 pm local time
- Place
- Boise, Idaho · Boise Air Terminal · map
- Type
- Accident
- Injuries
- No one was hurt; 4 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Maule M-5-235C · all M-5-235Cs on the register
- Registration
- N5636D · registry record · serial 7305C
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
WHILE TAXIING FOR TAKEOFF AN INADVERTANT GROUND LOOP OCCURRED DURING WHICH THE ACFT VEERED LEFT STRIKING ANOTHER PARKED ACFT. THE PLT STATED IT FELT AS THOUGH THE TAILWHEEL JAMMED; HOWEVER, POST ACCIDENT EXAM FAILED TO DISCLOSE ANY FAILURE/MALFUNCTION.
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; instrument: airplane
- Flight time: 1,095 hours in all; 39 in this make and model; 98 in the last 90 days; 1,008 as pilot in command
- Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
- Seat: left
The aircraft
- Airframe total time: 671 hours
- Last inspection: annual inspection, April 19, 1986
- Maximum gross weight: 2,300 lb
- Seats: 4
- Landing gear: fixed
- Engine: Lycoming O-540-J1A5D (piston); 0 hours total
The flight
- Destination: MYL Mccall ID
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 330° at 10 knots
- Visibility: 50 statute miles
- Sky: clear
- Temperature: 75°F (24°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 | |||
| Passengers | 3 |
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 N5636D the same tail number, which may have belonged to a different aircraft at the time
About this page
Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The documents and photographs are the NTSB's docket, the folder of records gathered during the investigation, shown as the NTSB released them (the NTSB redacts some personal details first) and listed under the NTSB's own titles. This site's own text never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number SEA86LA167.