ASN Wikibase Occurrence # 132804
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| Date: | Saturday 15 December 1990 |
| Time: | 11:30 |
| Type: |  Robinson R22 |
| Owner/operator: | Dr. Charles F. Samson |
| Registration: | N9073S |
| MSN: | 229 |
| Total airframe hrs: | 1199 hours |
| Engine model: | LYCOMING O-320 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | West Kingston, Rhode Island -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | West Kingston, Rhode Island |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
AFTER TAKING OFF FROM AN OPEN FIELD AND ESTABLISHING A CLIMB, THE LEFT PASSENGER TAIL ROTOR PEDAL RETAINING CLIP BECAME DISLODGED RESTRICTING PEDAL MOVEMENT IN THE ROBINSON R-22 HELICOPTER. THE PILOT STATED THAT THE PASSENGER COULD MOVE THE RETAINING CLIP AS NEEDED TO ALLOW SOME TRAVEL IN THE PEDALS AND HE THOUGHT A SAFE LANDING COULD BE ACCOMPLISHED. ON FINAL APPROACH HE PUSHED HIS PEDALS AND THEY ONCE AGAIN JAMMED CAUSING THE HELICOPTER TO SPIN TO THE RIGHT AND TILT LEFT. HE SAID THE HELICOPTER TOUCHED DOWN BUT CONTINUED TO TURN RIGHT AND THEN ROLLED.
POST-CRASH INVESTIGATIONS ACHIEVED BY THE FAA SHOWED THAT BY APPLYING MINIMAL UPWARD PRESSURE ON THE TAIL ROTOR PEDAL, IT WOULD DISENGAGE AND ROTATE TO CAUSE MISALIGNMENT.
PROBABLE CAUSE:THE PILOT'S FAILURE TO MAINTAIN DIRECTIONAL CONTROL. CONTRIBUTING WAS THE MALFUNCTION OF THE PEDAL ASSEMBLY.
Sources:
1. NTSB Identification: NYC91LA049 at https://www.ntsb.gov/about/employment/_layouts/ntsb.aviation/brief.aspx?ev_id=20001212X24811&key=1
2. FAA: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?omni=Home-N-Number&nNumberTxt=9073S
3. http://www.griffin-helicopters.co.uk/accidentdetails.aspx?accidentkey=1167
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 19-Sep-2016 21:34 | Dr.John Smith | Updated [Time, Location, Departure airport, Source, Narrative] |
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
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