Piper PA-22-150 accident near Roy, Utah, July 11, 1999
On July 11, 1999 at about 5:52 pm local time, a Piper PA-22-150, registered N7729D, was destroyed in an accident near Roy, Utah (Ogden Hinckley airport). It was a personal flight under general aviation rules (Part 91). 4 people were killed. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The pilot inadvertently allowing the aircraft to enter a stall during initial climb following takeoff. Factors were high density altitude and gross weight which exceeded the maximum.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- July 11, 1999 · about 5:52 pm local time
- Place
- Roy, Utah · Ogden Hinckley · map
- Type
- Accident
- Injuries
- 4 people were killed.
- Weather
- visual conditions (good weather)
- Aircraft
- Piper PA-22-150 · all PA-22-150s on the register
- Registration
- N7729D · no longer on the register · serial 22-5405
- Damage
- Destroyed
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
During initial climb following takeoff, the aircraft was observed to settle then climb slowly. The aircraft entered a right turn and the controller queried the pilot regarding having problems. The pilot did not indicate he was having problems but stated he would return and land. The controller issued a clearance to land on the nearest runway. The aircraft wings were observed to be rocking followed by the aircraft rolling inverted to the right and descending into trees. Density altitude at the time was 7,400 feet. Investigation revealed the aircraft was 136 pounds over the maximum certified gross weight allowable.
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
- Flight time: 200 hours in all
- Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
- Seat: left
The aircraft
- Airframe total time: 1,850 hours
- Last inspection: 100-hour inspection, March 5, 1999; 1 hours since
- Maximum gross weight: 2,000 lb
- Seats: 4
- Landing gear: fixed
- Engine: Lycoming O-320-A2B (piston); 0 hours total
- Fire on the ground
- Operator: K W Aviation, INC
The flight
- Departed from: OGD Ogden UT at 5:50 pm
- Destination: 06U Jackpot NV
- Flight plan: none
- Runway 16, 5,352 ft by 100 ft
Weather at the time
- Light: daylight
- Wind: from 260° at 5 knots
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 82°F (28°C), dew point 43°F (6°C)
- Altimeter: 30.00 inHg
- Observation at 5:50 pm from OGD, 2 miles away
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.
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.