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NTSB Report
July 27, 1990 · Lake LA-250 · N14004
Rawlins, WY
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 27, 1990
Injury Outcomes
1 injury (1 minor injury), 1 uninjured
Location
Rawlins, WY
Aircraft
Lake LA-250
Tail Number
N14004
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
SEA90LA147
THE PILOT OF THE LAKE AMPHIBIAN TOOK OFF AND TURNED TOWARD RISING TERRAIN, WHERE HE ANTICIPATED FINDING SLOPE LIFT, DUE TO THE PREVAILING WINDS. HE STATED THAT HE ENCOUNTERED SINK INSTEAD, AND HE HAD UNSUFFICIENT TERRAIN CLEARANCE TO MAKE A COURSE REVERSAL. SUBSEQUENTLY, THE AIRCRAFT COLLIDED WITH TERRAIN. DENSITY ALTITUDE AT THE TIME OF THE ACCIDENT WAS APPROXIMATELY 9070 FEET.
NTSB Probable Cause
PILOT'S IMPROPER PLANNING/DECISION, AND HIS MISJUDGEMENT OF THE AIRCRAFT'S CLIMB CAPABILITY IN CONDITIONS OF HIGH DENSITY ALTITUDE AND UNANTICIPATED ATMOSPHERIC CONDITIONS. THE HIGH DENSITY ALTITUDE AND RISING TERRAIN WERE RELATED FACTORS.
Full Narrative
THE PILOT OF THE LAKE AMPHIBIAN TOOK OFF AND TURNED TOWARD RISING TERRAIN, WHERE HE ANTICIPATED FINDING SLOPE LIFT, DUE TO THE PREVAILING WINDS. HE STATED THAT HE ENCOUNTERED SINK INSTEAD, AND HE HAD UNSUFFICIENT TERRAIN CLEARANCE TO MAKE A COURSE REVERSAL. SUBSEQUENTLY, THE AIRCRAFT COLLIDED WITH TERRAIN. DENSITY ALTITUDE AT THE TIME OF THE ACCIDENT WAS APPROXIMATELY 9070 FEET.
Flight
Event TypeAccident
Event Time14:13 MDT
Nearest AirportRawlins Muni (0nm N)
Runway22
Runway Length7008 ft
Runway Width100 ft
Flight Plan FiledVFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftLake LA-250
Tail NumberN14004
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · IO-540 · Reciprocating · 250
Seats4
People & Injuries
Injury Summary1 injury (1 minor injury), 1 uninjured
Fatal0
Serious0
Minor1
Uninjured1
Total2
Crew 1Age 62 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind240° @ 18 kt
Visibility60 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter30.00 inHg
Observation Time20:30
Weather SourceWFAC