Piper PA-18-150 accident near Sheridan, Wyoming, August 10, 1993
On August 10, 1993 at about 1:15 pm local time, a Piper PA-18-150, registered N116BH, was substantially damaged in an accident near Sheridan, Wyoming (Sheridan County 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 DUAL STUDENT'S FAILURE TO MAINTAIN DIRECTIONAL CONTROL. A FACTOR CONTRIBUTING TO THE ACCIDENT WAS THE INSTRUCTOR'S DELAYED REMEDIAL ACTION.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- August 10, 1993 · about 1:15 pm local time
- Place
- Sheridan, Wyoming · Sheridan County Airport · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Piper PA-18-150 · all PA-18-150s on the register
- Registration
- N116BH · registry record · serial 18-8041
- Damage
- Substantial damage
- Flight
- Instructional flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
DURING THE LANDING ROLL THE DUAL STUDENT ALLOWED THE AIRCRAFT TO DRIFT RIGHT AND THEN OVER CORRECTED IN AN ATTEMPT TO REGAIN DIRECTIONAL CONTROL. AS THE AIRCRAFT BEGAN TO GROUND LOOP TO THE LEFT, THE INSTRUCTOR PILOT ATTEMPTED TO REGAIN CONTROL BUT WAS UNSUCCESSFUL. THE INSTRUCTOR REPORTED THAT HE WAS SLOW TO TAKE CORRECTIVE ACTION.
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: airline transport pilot, flight instructor
- Ratings: multi-engine land; single-engine land; single-engine sea; instructor: airplane multi-engine; instructor: airplane single-engine; instructor: helicopter; instrument: airplane
- Flight time: 12,000 hours in all; 350 in this make and model; 152 in the last 90 days; 56 in the last 30 days; 11,700 as pilot in command; 2,570 on instruments
- Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
- Seat: rear
The aircraft
- Airframe total time: 1,986 hours
- Last inspection: annual inspection, January 15, 1993; 68 hours since
- Maximum gross weight: 1,750 lb
- Seats: 2
- Landing gear: fixed
- Engine: Lycoming O-320-A2B (piston); 0 hours total
- Operator: Bighorn Airways, INC.
The flight
- Departed from: SHR WY at 12:45 pm
- Destination: SHR
- Flight plan: none
- Runway 31, 6,649 ft by 150 ft
- A second pilot was aboard
Weather at the time
- Light: daylight
- Wind: from 190° at 7 knots
- Visibility: 50 statute miles
- Sky: broken clouds at 12,000 ft; scat at 6,500 ft
- Temperature: 64°F (18°C), dew point 50°F (10°C)
- Altimeter: 30.00 inHg
- Observation at 12:54 pm from SHR
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 2 |
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.