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NTSB Report
August 17, 1986 · Curtiss JN4-D · N511JN
Vancouver, WA
Overview
Report Status
Preliminary report
Event Type
Accident
Date
August 17, 1986
Injury Outcomes
2 injuries (2 minor injuries)
Location
Vancouver, WA
Aircraft
Curtiss JN4-D
Tail Number
N511JN
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
SEA86LA208
THE PLT REPORTED A NORMAL TAKEOFF WAS MADE WITH 1300 RPM. AT LIFTOFF A SMALL AMOUNT OF BLACK SMOKE EMITTED FROM BOTH EXHAUST STACKS AND THE RPM DROPPED TO 1250. AFTER CLEARING THE RWY, MORE BLACK SMOKE EMITTED AND THE RPM DROPPED TO 1200. THE PLT CLEARED TWO 40 FOOT TALL TREES AT THE END OF THE RWY AND MADE A HARD LANDING IN A FIELD BEYOND THE TREES. INVESTIGATION DISCLOSED THE FLOAT FROM THE ZENITH CARBURETOR HAD 17 VERITCAL LINES ON THE OUTSIDE DIAMETER AND CRACKS. THE FLOAT WAS FUEL SATURATED.
Full Narrative
THE PLT REPORTED A NORMAL TAKEOFF WAS MADE WITH 1300 RPM. AT LIFTOFF A SMALL AMOUNT OF BLACK SMOKE EMITTED FROM BOTH EXHAUST STACKS AND THE RPM DROPPED TO 1250. AFTER CLEARING THE RWY, MORE BLACK SMOKE EMITTED AND THE RPM DROPPED TO 1200. THE PLT CLEARED TWO 40 FOOT TALL TREES AT THE END OF THE RWY AND MADE A HARD LANDING IN A FIELD BEYOND THE TREES. INVESTIGATION DISCLOSED THE FLOAT FROM THE ZENITH CARBURETOR HAD 17 VERITCAL LINES ON THE OUTSIDE DIAMETER AND CRACKS. THE FLOAT WAS FUEL SATURATED.
Flight
Event TypeAccident
Event Time15:00 PDT
Nearest AirportEvergreen (1nm W)
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCurtiss JN4-D
Tail NumberN511JN
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLiberty · OX-5 · Reciprocating · 200
Seats2
People & Injuries
Injury Summary2 injuries (2 minor injuries)
Fatal0
Serious0
Minor2
Uninjured0
Total2
Crew 1Age 75 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind270° @ 7 kt
Visibility40 sm
CeilingBroken clouds 20000 ft
Temperature / Dew Point52
Altimeter29.00 inHg
Observation Time18:50
Weather SourceWFAC