DEN86LA194

NTSB accident investigation · Cessna 120 · Riverton, WY · July 11, 1986

Accident · No injuriesLimited investigationFinal report
Date
July 11, 1986, 08:45 local (14:45 UTC)
Place
Riverton, WY
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N3099NCessna 120
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19860711032269A
Case key
17008

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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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 flightTakeoff - initial climb
Preflight planning/preparation - inadequatePilot in commandFactor
Performance data - not usedPilot in commandFactor
Weather condition - high density altitudeFactor
Proper climb rate - not attainedPilot in commandCause
Airspeed - not maintainedPilot in commandCause
Stall/spin - inadvertentPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

Plt stated after accident '... We could not climb after initial takeoff and a pwr line was coming up so I tried to turn right and the plane stalled.' The density altitude was calculated to be 7,136 feet MSL. The plt stated that he did not lean the mixture for takeoff.

Aircraft

Registration
N3099N
Reported as
Cessna 120
Category
Airplane
Serial number
13357
Airframe hours
3,500
Engine
Continental C-85, 85 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Richard E. Miller
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 13, 1986
Destination
Syracuse, IN
Airport
RIW · Riverton, runway 28, 8,200 × 150 ft, asphalt

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
44
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
980 total · 275 in this make and model · 25 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 10 knots
Visibility
30 statute miles
Lowest ceiling
None
Temperature
64 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.