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NTSB Report
April 26, 1992 · Boeing A75N1 · N59528
Washington, MO
Overview
Report Status
Probable Cause
Event Type
Accident
Date
April 26, 1992
Injury Outcomes
1 injury (1 minor injury), 1 uninjured
Location
Washington, MO
Aircraft
Boeing A75N1
Tail Number
N59528
Operator
Cochran Aviation
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
CHI92LA133
THE FLIGHT INSTRUCTOR WAS GIVING INSTRUCTION TO THE PRIVATE PILOT IN TAKEOFF AND LANDINGS. SHORTLY AFTER THE FOURTH TAKEOFF, AT AN ESTIMATED ALTITUDE OF 800' AGL, THE ENGINE BACKFIRED AND LOST POWER. CARBURETOR HEAT WAS APPLIED AFTER THE POWER LOSS. A FORCED LANDING WAS MADE TO A ROUGH FIELD, AND THE AIRPLANE NOSED OVER DURING THE GROUND ROLL. AN INSPECTION AND RUN-UP OF THE ENGINE FAILED TO DISCLOSE ANY MECHANICAL ANOMALIES. PREVAILING METEOROLOGICAL CONDITIONS WERE CONDUCIVE TO THE FORMATION OF SERIOUS CARBURETOR ICING.
NTSB Probable Cause
THE PILOT IN COMMAND'S IMPROPER USE OF THE CARBURETOR HEAT CONTROL.
Full Narrative
THE FLIGHT INSTRUCTOR WAS GIVING INSTRUCTION TO THE PRIVATE PILOT IN TAKEOFF AND LANDINGS. SHORTLY AFTER THE FOURTH TAKEOFF, AT AN ESTIMATED ALTITUDE OF 800' AGL, THE ENGINE BACKFIRED AND LOST POWER. CARBURETOR HEAT WAS APPLIED AFTER THE POWER LOSS. A FORCED LANDING WAS MADE TO A ROUGH FIELD, AND THE AIRPLANE NOSED OVER DURING THE GROUND ROLL. AN INSPECTION AND RUN-UP OF THE ENGINE FAILED TO DISCLOSE ANY MECHANICAL ANOMALIES. PREVAILING METEOROLOGICAL CONDITIONS WERE CONDUCIVE TO THE FORMATION OF SERIOUS CARBURETOR ICING.
Flight
Event TypeAccident
Event Time16:00 CDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBoeing A75N1
Tail NumberN59528
Aircraft CategoryAir
DamageSubstantial
OperatorCochran Aviation
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · W-670 · Reciprocating · 220
Seats2
People & Injuries
Injury Summary1 injury (1 minor injury), 1 uninjured
Fatal0
Serious0
Minor1
Uninjured1
Total2
Crew 1Age 53 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind330° @ 7 kt
Visibility7 sm
CeilingBroken clouds 3700 ft
Temperature / Dew Point48 / 37 C
Altimeter30.00 inHg
Observation Time20:50
Weather SourceWFAC