CircumFlightN1098B Hughes 269C accident
NTSB DEN00LA083 · 2000-05-03 · LOVELAND, CO
Docket — crew, injuries and powerplant
Summary
During a practice power recovery autorotation, the private single engine land rated, helicopter student pilot performed a full autorotation when the engine lost all power. During the ensuing power off landing to an open soft field, the helicopter tipped forward, the main rotor struck and severed the tail boom, and the helicopter rolled on its right side. An examination of the engine provided no evidence of preimpact failure or malfunction.
Full narrative
On May 3, 2000, at 1200 mountain daylight time, a Hughes 269C helicopter, N1098B, sustained substantial damage during a hard landing near Loveland, Colorado. The student pilot was not injured. The flight was operating under Title 14 CFR Part 91 and no flight plan was filed. Visual meteorological conditions prevailed.
According to Federal Aviation Administration (FAA) records, the pilot holds a private pilot certificate with a single engine land rating. On this flight he was a student pilot practicing maneuvers in preparing for a helicopter rating.
The pilot reported that he was practicing autorotations and during initial entry to a practice power recovery autorotation, the engine lost all power and a full autorotation was performed. According to the pilot, he performed a run-on landing in a soft field and the helicopter tipped forward causing the main rotor blades to contact and sever the tail boom. The helicopter then rolled on its right side and spun 180 degrees.
Examination of the engine provided no evidence of preimpact failure or malfunction.
Probable cause
The pilot misjudged the run on landing during a full autorotation. Factors were a total loss of power for unknown reasons and soft terrain. The National Transportation Safety Board determined the probable cause of this accident.
Circumstances
- Event type
- Accident
- Highest injury
- None
- Weather conditions
- Visual Meteorological Cond
- Light condition
- Day
- Sky condition
- NONE
- Ceiling (ft)
- 0
- Visibility (sm)
- 9
- Wind direction
- 40
- Wind speed (kt)
- 3
- Temperature (F)
- 66
- Distance from field
- 0.0
Aircraft
| Registration | Make | Model | Damage | FAR part |
|---|---|---|---|---|
| N1098B | Hughes | 269C | SUBS | 091 |
Sequence of events
| # | Occurrence | Phase |
|---|---|---|
| 1 | 353 | Cruise |
| 2 | 180 | Cruise |
Findings
| Finding | |
|---|---|
| 25000 | factor |
| 24520 | |
| 19200 | |
| 19200 | factor |
| 24559 | |
| 24559 | cause |