DEN82FTC07 · Piper 18
Exec. Air Service Piper 18 · Accident: loss of control in flight
From Pinedale, WY to Salt Lake City, UT
Event
- NTSB case
- DEN82FTC07
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 2 · all aircraft and ground
- Ground fatalities
- 0
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Piper 18
- Aircraft type
- Piper 18
- Category
- Airplane
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N83503
- Operator
- Exec. Air Service
- Onboard fatalities
- Unknown
- Route
- From Pinedale, WYTo Salt Lake City, UT
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Other
- First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Loss of control in flight
- Also codedOther events the NTSB coded in the sequence, such as a wire strike after a loss of power. Flight Findings uses them for its kinds of event. Glossary
- Stall
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Destroyed
Cause areas
- Pilot in command › Airspeed, not maintained
- Pilot in command › Stall, inadvertent
Approximate · Estimated position: the centre of La Barge, WY, the place the record names. Not the accident site.
NTSB narrative
THE AIRCRAFT WAS ON A POWER LINE PATROL MISSION. THE REAR SEAT OCCUPANT WAS ACTING AS AN OBSERVER. HE WAS ALSO ALONG TO ASSIST THE COMPANY IN ROUTE FAMILIARIZATION OF THE PILOT, BUT WAS ASSIGNED NO OTHER OFFICIAL CREWMEMBER DUTIES. THE ACCIDENT OCCURRED WHILE THE AIRCREW WERE PATROLLING THE LINE TOWARD THE SOUTHWEST WITH A HEAD WIND. THE AIRCRAFT IMPACTED THE GROUND IN A STEEP NOSE DOWN ATTITUDE ON THE LEEWARD SIDE OF STEEPLY RISING TERRAIN. THE WRECKAGE WAS CONFINED WITHIN A RADIUS OF 30 FT WITH EXCEPTION OF A FUEL CAP AND RED NAVIGATION LIGHT THAT WERE SLIGHTLY FARTHER AWAY. NO PREIMPACT FAILURES WERE FOUND AND FLIGHT CONTROL CONTINUITY WAS ESTABLISHED. THE ELEVATION OF THE CRASH SITE WAS ABOUT 7000 FT MSL AND THE DENSITY ALTITUDE WAS ABOUT 10,000 FT.
Verbatim NTSB analysis from the NTSB dataset
Sources
NTSB record DEN82FTC07
- Event ID
- 20020917X03216
- Case number
- DEN82FTC07
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: c82bfca9c226626a8a119c0a5be0e3da8b8187f94cea0817853e7e7808893eeb; retrieved 2026-09-21T08:04:11.581Z.