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Aviation safety reports, made easier to study

NTSB Reports is an independent research and search tool for public aviation accident and incident records. It brings NTSB aviation reports, structured fields, docket files, extracted figures, photos, videos, and update history into one searchable interface.

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NTSB Report

January 3, 1990 · Aeronca 11CC · N4636E

Slippery Rock, PA

Overview

Report Status
Probable Cause
Event Type
Accident
Date
January 3, 1990
Injury Outcomes
No injuries (1 uninjured)
Location
Slippery Rock, PA
Aircraft
Aeronca 11CC
Tail Number
N4636E
Injuries
None
Aircraft Damage
Substantial
NTSB Number
NYC90LA045

THE ENGINE EXPERIENCED A POWER LOSS DUE TO CARBURETOR ICE ABOUT 5 MINUTES AFTER TAKEOFF AT AN ALTITUDE OF 800 FEET AGL AND THE PILOT ATTEMPTED TO RETURN TO THE AIRPORT FOR A LANDING. REALIZING HE WOULD NOT MAKE THE AIRPORT, THE PILOT TURNED THE AIRPLANE 90 DEGREES TO THE RIGHT AND THE AIRPLANE STALLED AT 30 FEET AND STRUCK THE ROAD. ON IMPACT THE PILOT WAS THROWN OUT, HOWEVER HE WAS NOT INJURED. THE FAA EXAMINED THE AIRPLANE AND COULD FIND NO INDICATION OF A MECHANICAL FAILURE. THEY REPORTED THE TOP SPARK PLUGS WERE SOOTY AND THE FUEL TANKS CONTAINED AVIATION GASOLINE.

NTSB Probable Cause

LOSS OF AIRSPEED AND AN INADVERTENT STALL BY THE PILOT DURING AN ATTEMPTED RETURN TO THE AIRPORT, FOLLOWING A POWER LOSS DUE TO CARBURETOR ICE.

Full Narrative

THE ENGINE EXPERIENCED A POWER LOSS DUE TO CARBURETOR ICE ABOUT 5 MINUTES AFTER TAKEOFF AT AN ALTITUDE OF 800 FEET AGL AND THE PILOT ATTEMPTED TO RETURN TO THE AIRPORT FOR A LANDING. REALIZING HE WOULD NOT MAKE THE AIRPORT, THE PILOT TURNED THE AIRPLANE 90 DEGREES TO THE RIGHT AND THE AIRPLANE STALLED AT 30 FEET AND STRUCK THE ROAD. ON IMPACT THE PILOT WAS THROWN OUT, HOWEVER HE WAS NOT INJURED. THE FAA EXAMINED THE AIRPLANE AND COULD FIND NO INDICATION OF A MECHANICAL FAILURE. THEY REPORTED THE TOP SPARK PLUGS WERE SOOTY AND THE FUEL TANKS CONTAINED AVIATION GASOLINE.

Flight

Event TypeAccident
Event Time14:30 EST
Nearest AirportFlying Acres (0nm N)
Runway9
Runway Length2100 ft
Runway Width200 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftAeronca 11CC
Tail NumberN4636E
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · C-85-8 · Reciprocating · 85
Seats2

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 64 · Third Class

Conditions

ConditionsVMC
LightDaylight
Wind225° @ 12 kt
Visibility20 sm
CeilingOvercast 5000 ft
Temperature / Dew Point0 C / 0 C
Altimeter0
Observation Time14:30
Weather SourcePILO

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Appendix: Source Data