- Date
- September 13, 2002, 08:10 local (15:10 UTC)
- Place
- Overgaard, AZ
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N104BJSiemens Rotorway Exec 162 F
- Weather
- Visual (VMC) · Day
- Status
- Completed · report February 5, 2004
- Report
- Approved by Office Director
- Parties
- Federal Aviation Administration
- FAA report
- 20020913022979A
- Case key
- 55697
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The pilot's failure to check the wind direction prior to practicing autorotations, and his misjudged flare maneuver. The tailwind was a factor.
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
The helicopter sustained substantial damage during a hard landing and rollover after performing a practice autorotation. Due to excessive forward airspeed, the pilot aborted the maneuver. The application of the collective did not stop the descent. He committed to a full down autorotation and flared about 50 feet above ground level. As the helicopter contacted the ground, it pivoted on its right skid, and came to rest on its right side. Wind conditions were not checked prior to entering the autorotation, and he subsequently determined that he attempted it with a tailwind.
Factual narrative
On September 13, 2002, at 0810 mountain standard time, a Siemens Rotorway Executive 162F helicopter, N104BJ, sustained substantial damage during a hard landing and rollover after performing a practice autorotation at the Mogollon Airport (PVT), Overgaard, Arizona. The private pilot/owner operated the experimental helicopter under the provisions of 14 CFR Part 91. The pilot, the sole occupant, was not injured. The local area personal flight originated from the Mogollon airport. Visual meteorological conditions prevailed, and no flight plan had been filed.
The pilot reported practicing an autorotation. Due to excessive forward airspeed, he elected to abort the maneuver. The application of the collective did not stop the descent. He committed to a full down autorotation and flared about 50 feet above ground level (agl). As the helicopter contacted the ground, it pivoted on its right skid, and came to rest on its right side. Wind conditions were not checked prior to entering the autorotation, and he subsequently determined that he attempted it with a tailwind.
Aircraft
- Registration
- N104BJ
- Reported as
- Siemens Rotorway Exec 162 F
- Category
- Helicopter, amateur-built
- Serial number
- 6194
- Airframe hours
- 178
- Engine
- Rotorway R162F, 150 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- Jimmie Siemens
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Continuous airworthiness · June 15, 2002 · 22 hours before
- Departed
- AZ82 · Overgaard, AZ
- Destination
- AZ82 · Overgaard, AZ
- Airport
- PVT · Mogollon Airpark (PVT)
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 67
- Injuries
- None
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, Valid Medical--w/ waivers/lim
- Last flight review
- December 10, 2000
- Seat
- Left
- Flight hours
- 1,987 total · 178 in this make and model · 1,987 as pilot in command · 70 in the last 90 days · 45 in the last 30 days · 2 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 240° at 10 knots
- Visibility
- 30 statute miles
- Lowest ceiling
- 5,000 ft broken
- Temperature
- 72 °F, dew point 48 °F
- Altimeter
- 30.12 inHg
- Observed at
- KSOW, 27 nm away
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N104BJ · 1
Matched to the same aircraft by N-number and date.