ASN Wikibase Occurrence # 215643
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| Date: | Monday 27 July 2009 |
| Time: | Day |
| Type: |  Robinson R22 Beta II |
| Owner/operator: | Hillsboro Aero Academy LLC |
| Registration: | N8340S |
| MSN: | 2640 |
| Year of manufacture: | 1996 |
| Total airframe hrs: | 4786 hours |
| Engine model: | Lycoming O&VO-360 SER |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Location: | Portland-Troutdale Airport, Troutdale, 10nm E of Portland, Oregon -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Training |
| Departure airport: | Portland-Troutdale Airport, Troutdale, Oregon (TTD/KTTD) |
| Portland-Troutdale Airport, Troutdale, Oregon (TTD/KTTD) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The flight instructor reported that he was conducting a lesson on autorotation landings. After completing several autorotations with the student pilot, the flight instructor demonstrated three autorotation landings from a hover. On the student’s first attempt at the maneuver, the instructor reported that the student lowered the collective control instead of raising it. The flight instructor took control of the helicopter and applied up collective to help slow the descent rate. The helicopter began to yaw to the left. The helicopter landed on its left rear skid and bounced as it began to roll to the left. The instructor applied full right cyclic control to level the helicopter before touching back down on both skids. The bounced landing resulted in structural damage to the lower frame of the helicopter. The flight instructor reported no mechanical anomalies with the helicopter and associated flight control systems. The flight instructor stated that he anticipated that the student may apply down collective; however, his reaction time was not enough to counter the student’s control inputs.
The National Transportation Safety Board determines the probable cause(s) of this accident as follows: The student pilot's improper use of the collective control and the flight instructor’s delayed reaction to the student pilot’s incorrect control inputs.
Accident investigation:
 |
|
Sources:
NTSB
2. FAA Regsitration: https://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=N8340S
3. http://helihub.com/2009/07/27/27-jul-09-n8340s-robinson-r22-troudale-us-oregon/
4. http://www.kgw.com/news-local/stories/kgw_072909_news_helicopter_crash_troutdale.8b024296.html
5. http://www.airport-data.com/aircraft/photo/000385097.html
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 25-Sep-2018 00:34 | Dr.John Smith | Added |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation