ASN Wikibase Occurrence # 361332
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: | Friday 10 September 1993 |
| Time: | 13:40 LT |
| Type: |  Robinson R22B |
| Owner/operator: | Helicopter Adventures, Inc. |
| Registration: | N47NH |
| MSN: | 1192 |
| Year of manufacture: | 1989 |
| Total airframe hrs: | 3982 hours |
| Engine model: | LYCOMING O-320-B2C |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Floriston, CA -
 United States of America
|
| Phase: | Unknown |
| Nature: | Training |
| Departure airport: | Reno, NV (KRNO) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The CFI was instructing his student in performing pinnacle approaches and landings to high density altitude mountainous locations. The student was initially flying. When the R22 had descended to 50 feet above the 6,100 ft MSL pinnacle, the CFI elected to made a go-around after observing that the terrain was not appropriate for the landing. The CFI took control of the helicopter, began turning right, and observed that the main rotor RPM decreased. The CFI attempted to recover RPM by reducing collective and rolling on full throttle. The R22 continued descending until colliding with a tree and terrain.
Probable Cause: the flight instructor's failure to maintain main rotor RPM after initiating a go-around from a pinnacle approach. A factor in the accident was the high density altitude condition.
Accident investigation:
 |
|
Sources:
NTSB LAX93LA348
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 16-Mar-2024 17:15 | ASN Update Bot | 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