- Date
- June 15, 1991, 15:10 local (21:10 UTC)
- Place
- Nephi, UT
- Injuries
- 2 fatal
- Damage
- Destroyed
- Phase of flight
- Maneuvering
- Aircraft
- N4090ZPiper PA-18-150
- Weather
- Visual (VMC) · Day
- Status
- Completed · report February 8, 1993
- Report
- Approved by Office Director
- FAA report
- 19910615021849A
- Case key
- 41321
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
Poor inflight planning and decisions. Factors to the accident were: an uncontrolled stall/spin, and inadequate airspeed.
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Loss of control - in flight
Stall/spin - uncontrolledFactor
Airspeed(vmc) - inadequateFactor
In-flight planning/decision - poorCause
In flight collision with terrain/water
Terrain condition - mountainous/hilly
Analysis
During a flight for the purpose of inspecting power lines at a low altitude in hilly to mountainous terrain, the airplane collided with the terrain in an uncontrolled attitude.
Aircraft
- Registration
- N4090Z
- Reported as
- Piper PA-18-150
- Category
- Airplane
- Serial number
- 18-8105
- Engine
- Lycoming O-320, 150 horsepower, reciprocating
- Damage
- Destroyed
- Fire
- On-Ground
- Flight
- Other work use · Part 91
- Operator
- Earl H. Moore, doing business as Mercury Aviation Services
- Registered owner
- Earl H. Moore
- Departed
- RIF · Richfield, UT
- Destination
- TVY · Tooele, UT
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 48
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Toxicology
- Performed
- Flight hours
- 2,267 total · 90 in this make and model · 2,160 as pilot in command · 92 in the last 90 days · 60 in the last 30 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 30 statute miles
- Lowest ceiling
- None
- Temperature
- 81 °F, dew point -0 °F
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.