ASN Wikibase Occurrence # 365536
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Date: | Thursday 28 March 1991 |
Time: | 14:45 LT |
Type: | Robinson R-22B |
Owner/operator: | Heliicopters International |
Registration: | N8050B |
MSN: | 1136 |
Year of manufacture: | 1989 |
Engine model: | LYCOMING O-320-B2C |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Spring, TX -
United States of America
|
Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
Nature: | Training |
Departure airport: | Tomball, TX (KDWH) |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:DURING A PARTIAL LOSS OF ENGINE POWER DUE TO CARBURETOR ICE, THE PILOT FAILED TO APPLY CARBURETOR HEAT IN AN EFFORT TO REGAIN POWER. DURING THE FORCED LANDING TO A RESIDENTIAL AREA THE STUDENT PILOT DID NOT APPLY APPROPRIATE COLLECTIVE CUSHIONING PITCH RESULTING IN THE HELICOPTER LANDING HARD AS THE TAIL ROTOR AND MAIN ROTOR STRUCK A TREE. TEMPERATURE/DEW POINT WERE 78/67 DEGREES RESPECTIVELY.
Probable Cause: POWER LOSS DUE TO CARBURETOR ICE, THE PILOT'S FAILURE TO USE CARBURETOR HEAT, AND HIS FAILURE TO APPLY ADEQUATE CUSHIONING COLLECTIVE PITCH DURING THE FLARE SEGMENT OF THE AUTOROTATION. A FACTOR IN THE ACCIDENT WAS THE PILOT'S IMPROPER AUTOROTATION TECHNIQUE.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | FTW91LA053 |
Status: | Investigation completed |
Duration: | 2 years |
Download report: | Final report |
|
Sources:
NTSB FTW91LA053
Location
Revision history:
Date/time | Contributor | Updates |
20-Mar-2024 11:09 |
ASN Update Bot |
Added |
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