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NTSB Report
June 22, 2007 · Commonwealth 185 · N92827
Redlands, CA
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
June 22, 2007
Injury Outcomes
2 injuries (2 minor injuries)
Location
Redlands, CA
Aircraft
Commonwealth 185
Tail Number
N92827
Operator
Robert Lee Graham
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
SEA07CA176
The pilot reported that he and the passenger, who was the owner of the airplane, were going for a local flight. The airplane was powered by an 85 horsepower engine and manufactured in 1946. Approximately 0.5-miles from their departure airport, the airplane suddenly began to sink so the pilot turned the airplane into the wind. The airplane began to climb and then encountered downdrafts and an excessive sink rate developed. The pilot was unable to maintain altitude and force-landed the airplane in a gravel quarry. During the forced landing, the airplane sustained substantial damage to the wings and fuselage. The temperature at the time was approximately 95 degrees Fahrenheit.
NTSB Probable Cause
The pilot's inadequate weather evaluation which resulted in the airplane's lack of climb performance and subsequent collision with terrain. Contributing factors included the downdraft and the high temperature.
Full Narrative
The pilot reported that he and the passenger, who was the owner of the airplane, were going for a local flight. The airplane was powered by an 85 horsepower engine and manufactured in 1946. Approximately 0.5-miles from their departure airport, the airplane suddenly began to sink so the pilot turned the airplane into the wind. The airplane began to climb and then encountered downdrafts and an excessive sink rate developed. The pilot was unable to maintain altitude and force-landed the airplane in a gravel quarry. During the forced landing, the airplane sustained substantial damage to the wings and fuselage. The temperature at the time was approximately 95 degrees Fahrenheit.
Flight
Event TypeAccident
Event Time13:54 PDT
Nearest Airport0nm
Flight Plan FiledNone
Aircraft FireNo
Aircraft
AircraftCommonwealth 185
Tail NumberN92827
Aircraft CategoryAir
DamageSubstantial
OperatorRobert Lee Graham
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsTeledyne Continental · C85 · Reciprocating
People & Injuries
Injury Summary2 injuries (2 minor injuries)
Fatal0
Serious0
Minor2
Uninjured0
Total2
Crew 1Age 56 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind320° @ 7 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point39 C
Altimeter29.87 inHg
Observation Time20:55