ASN Wikibase Occurrence # 361464
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| Date: | Wednesday 18 August 1993 |
| Time: | 12:00 LT |
| Type: |  Schweizer 269C |
| Owner/operator: | Helicopter Tng Academy Inc. |
| Registration: | N95AF |
| MSN: | S1574 |
| Year of manufacture: | 1991 |
| Total airframe hrs: | 342 hours |
| Engine model: | LYCOMING HIO-360-DIA |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Punta Gorda, FL -
 United States of America
|
| Phase: | Landing |
| Nature: | Training |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE FLIGHT INSTRUCTOR (CFI) WAS DEMONSTRATING A SIMULATED AUTOROTATION WITH TURN TO A RATED PRIVATE PILOT. A FLARE WAS INITIATED AT ABOUT 50 FEET AGL, INITIAL COLLECTIVE PITCH WAS APPLIED AT 15 TO 20 FEET AGL, WHEN A NOISE DESCRIBED AS A POP WAS HEARD BY BOTH CREWMEMBERS. THE TAIL SKID AND TAILROTOR BLADES COLLIDED WITH THE GROUND AS THE CFI INCREASED COLLECTIVE PITCH TO TERMINATE THE AUTOROTATION AT A HOVER. THE HELICOPTER STARTED TO SPIN TO THE RIGHT. THE CFI APPLIED LEFT ANTI-TORQUE PEDAL AND ROLLED THE THROTTLE OFF TO THE IDLE STOP. THE HELICOPTER CAME TO A COMPLETE STOP UPRIGHT ON THE SKIDS. EXAMINATION OF THE HELICOPTER BY AN AUTHORIZED REPAIR STATION REVEALED ALL DAMAGE WAS A RESULT OF GROUND IMPACT. THERE WAS NO EVIDENCE OF ANY PRECRASH FAILURE OR MALFUNCTION OF THE TAILROTOR GEARBOX OR ASSOCIATED COMPONENTS.
Probable Cause: THE PILOT-IN-COMMAND'S IMPROPER USE OF THE FLIGHT CONTROLS (CYCLIC AND COLLECTIVE PITCH) DURING A SIMULATED AUTOROTATION WITH TURN, RESULTING IN AN IN FLIGHT COLLISION WITH TERRAIN WITH THE TAIL SKID AND TAILROTOR BLADES.
Accident investigation:
 |
|
Sources:
NTSB MIA93LA177
History of this aircraft
Other occurrences involving this aircraft
| 6 October 1993 | N95AF | Miami Helicopter Service, Inc. | 0 | Opa-locka, FL | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 16-Mar-2024 18:43 | ASN Update Bot | Added |
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