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NTSB Report
March 7, 1993 · E L Erickson Tierra II · N4474E
Rio Linda, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
March 7, 1993
Injury Outcomes
No injuries (2 uninjured)
Location
Rio Linda, CA
Aircraft
E L Erickson Tierra II
Tail Number
N4474E
Operator
Gulbranson Edgar a Et Al
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX93LA143
THE REGISTERED ULTRALIGHT AIRCRAFT ENCOUNTERED A DOWNDRAFT SHORTLY AFTER DEPARTING A GRASS FIELD. THE PILOT ATTEMPTED TO TURN THE AIRCRAFT, BUT WITHOUT SUCCESS. THE AIRCRAFT STRUCK THE TREES AS IT CONTINUED IN A SOUTHERLY DIRECTION. THE PILOT REPORTED THE ENGINE WAS OPERATING NORMALLY AND THAT THE AIRCRAFT DID NOT EXPERIENCE ANY PREIMPACT MALFUNCTIONS OR FAILURES.
NTSB Probable Cause
THE FLIGHT'S ENCOUNTER WITH A DOWNDRAFT. A FACTOR RELATING TO THIS ACCIDENT WAS THE TREES.
Full Narrative
THE REGISTERED ULTRALIGHT AIRCRAFT ENCOUNTERED A DOWNDRAFT SHORTLY AFTER DEPARTING A GRASS FIELD. THE PILOT ATTEMPTED TO TURN THE AIRCRAFT, BUT WITHOUT SUCCESS. THE AIRCRAFT STRUCK THE TREES AS IT CONTINUED IN A SOUTHERLY DIRECTION. THE PILOT REPORTED THE ENGINE WAS OPERATING NORMALLY AND THAT THE AIRCRAFT DID NOT EXPERIENCE ANY PREIMPACT MALFUNCTIONS OR FAILURES.
Flight
Event TypeAccident
Event Time13:45 PST
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftE L Erickson Tierra II
Tail NumberN4474E
Aircraft CategoryUltr
DamageSubstantial
OperatorGulbranson Edgar a Et Al
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsRotax · 503 · Reciprocating · 45
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 41 · None
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility30 sm
CeilingNone
Temperature / Dew Point70 F / 0 C
Altimeter0
Weather SourcePILO