ASN Wikibase Occurrence # 361125
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| Date: | Tuesday 26 October 1993 |
| Time: | 19:00 LT |
| Type: |  Cessna 150M |
| Owner/operator: | Rainbow Airport, Inc. |
| Registration: | N9259U |
| MSN: | 15078209 |
| Year of manufacture: | 1976 |
| Total airframe hrs: | 7278 hours |
| Engine model: | CONTINENTAL O-200-A4B |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Franklin, WI -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Training |
| Departure airport: | (Y78) |
| (Y78) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
DURING THE INITIAL CLIMB AFTER TAKEOFF, THE INSTRUCTOR RETARDED THE THROTTLE TO SIMULATE AN ENGINE FAILURE WITHOUT APPLYING CARBURETOR HEAT. AFTER A DESCENT, THE INSTRUCTOR ADVANCED THE THROTTLE TO REGAIN POWER AND THE ENGINE COUGHED. SHORTLY AFTER THIS, THE PROPELLER STOPPED ROTATING. DURING AN EMERGENCY LANDING ROLL IN A GRAIN FIELD, THE NOSE GEAR COLLAPSED. NO ANOMALIES WERE FOUND DURING A FULL POWER STATIC RUNUP. THE TEMPERATURE/DEWPOINT AT AN AIRPORT SEVEN MILES FROM THE ACCIDENT SITE WAS 52 AND 41 DEGREES, WHICH WAS CONDUCIVE TO CARBURETOR ICING.
Probable Cause: FAILURE OF THE INSTRUCTOR PILOT (CFI) TO USE CARBURETOR HEAT DURING THE SIMULATED ENGINE FAILURE, WHICH RESULTED IN CARBURETOR ICE AND LOSS OF ENGINE POWER. FACTORS RELATED TO THE ACCIDENT WERE: CARBURETOR ICING CONDITIONS AND THE CROP IN THE EMERGENCY LANDING AREA.
Accident investigation:
 |
|
Sources:
NTSB CHI94LA025
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 16-Mar-2024 15:05 | ASN Update Bot | Added |
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