ASN Wikibase Occurrence # 369287
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| Date: | Wednesday 18 January 1989 |
| Time: | 15:04 LT |
| Type: |  Robinson R-22HP |
| Owner/operator: | American Helicopters Inc |
| Registration: | N9021M |
| MSN: | 0021 |
| Year of manufacture: | 1980 |
| Total airframe hrs: | 3499 hours |
| Engine model: | LYCOMING O-320-B2C |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Ronkonkoma, NY -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Executive |
| Departure airport: | |
| Shirley, NY (KHWV) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE ROBINSON R-22HP TOOK OFF AND CRASHED ON THE AIRPORT IMMEDIATELY AFTER GETTING AIRBORNE. THERE WERE NO WITNESSES AND THE PILOT SAID HE DID NOT REMEMBER WHAT HAPPENED. THE MAIN ROTOR EXHIBITED SIGNS OF LOW ROTOR RPM AND THE FUSELAGE SHOWED SIGNS OF HIGH VERTICAL IMPACT FORCES. THE MAIN ROTOR HEAD AND THE FREEWHEELING CLUTCH WERE BOTH FREE TO ROTATE. NO EVIDENCE OF CONTROL MALFUNCTION WAS FOUND.
Probable Cause: THE PILOT'S IMPROPER OPERATION OF THE ROTORCRAFT FLIGHT CONTROLS AND A RESULTING LOW ROTOR RPM CONDITION.
Accident investigation:
 |
|
Sources:
NTSB NYC89LA068
History of this aircraft
Other occurrences involving this aircraft
| 1 May 1980 | N9021M | Suffolk Helicopters Inc | 0 | Shreveport Regional Airport, 4 nm SW of Shreveport, Louisiana | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Mar-2024 12:49 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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