ASN Wikibase Occurrence # 173324
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| Date: | Friday 12 March 2004 |
| Time: | 09:30 |
| Type: |  Robinson R22 |
| Owner/operator: | Wings and Rotors |
| Registration: | N4370D |
| MSN: | 1583 |
| Year of manufacture: | 1990 |
| Engine model: | Avco Lycoming O-320-B2C |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Keystone Airpark, Keystone Heights, Florida -
 United States of America
|
| Phase: | En route |
| Nature: | Training |
| Departure airport: | Keystone, FL (42J) |
| Keystone, FL (42J) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The certified flight instructor decided to let the student perform one more steep turn before returning to the hangar. On the last steep turn the student lost more altitude than on previous maneuvers. The instructor took over the controls; however, the helicopter touched down right skid lower than the left with forward left lateral movement resulting in a roll over of the helicopter. The flight instructor stated there were no mechanical failures or malfunctions to the helicopter or any of its systems prior to the accident.
Probable Cause: The inadequate supervision by the flight instructor by allowing the student to lose excessive altitude resulting in a skid impacting the ground and subsequent roll over of the helicopter.
Accident investigation:
 |
|
Sources:
NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20040407X00425&key=1
FAA register: 2. FAA: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?omni=Home-N-Number&nNumberTxt=4370D
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 27-Jan-2015 17:05 | Noro | Added |
| 17-Sep-2016 20:44 | Dr.John Smith | Updated [Time, Other fatalities, Location, Departure airport, Destination airport, Source, Damage, Narrative] |
| 28-Sep-2016 18:13 | Dr.John Smith | Updated [Source] |
| 21-Dec-2016 19:28 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 07-Dec-2017 17:49 | ASN Update Bot | Updated [Operator, Departure airport, Destination airport, Source, Narrative] |
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