- Date
- January 22, 2000, 09:45 local (15:45 UTC)
- Place
- East Troy, WI
- Injuries
- 1 minor, 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Takeoff
- Aircraft
- N4047CRobinson R-22B
- Weather
- Visual (VMC) · Day
- Status
- Completed · report March 2, 2001
- Report
- Approved by Office Director
- FAA report
- 20000122041379A
- Case key
- 48564
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 proper alignment not being maintained by the dual student during an attempted running takeoff and the inadequate supervision of the pilot-in-command (CFI).
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
According to the CFI's written statement, they were practicing a running takeoff on runway 18 and after traversing approximately ten feet of the takeoff run the student applied right pedal input. The CFI stated that he tried to overcome the student's right pedal input by depressing the left pedal input and verbally commanding the student to do the same. The CFI reported that he was unable to counteract the students control input and the aircraft yawed to the right. The left skid of the helicopter impacted the terrain, the aircraft rolled onto its left side and slid 15-feet before coming to rest.
Factual narrative
On January 22, 2000, at 0945 central standard time, a Robinson R-22B, N4047C, operated by WW Helicopters LLC, of East Troy, Wisconsin, sustained substantial damage during an in-flight collision with terrain following a loss of control during takeoff from runway 18 (1,900 feet by 150 feet, snow-covered/grass) at the East Troy Municipal Airport, East Troy, Wisconsin. Visual meteorological conditions prevailed at the time of the accident. The instructional flight was conducted under the provisions of 14 CFR Part 91 and was not on a flight plan. The certified flight instructor (CFI) received minor injuries. The dual student reported no injuries. The local flight was departing at the time of the accident.
According to the CFI's written statement, they were practicing a running takeoff on runway 18 and after traversing approximately ten feet of the takeoff run the student applied right pedal input. The CFI stated that he tried to overcome the student's right pedal input by depressing the left pedal and verbally commanding the student to do the same. The CFI reported that he was unable to counteract the students control input and the aircraft yawed to the right. The left skid of the helicopter impacted the terrain, the aircraft rolled onto its left side, and slid 15-feet before coming to rest.
Aircraft
- Registration
- N4047C
- Reported as
- Robinson R-22B
- Category
- Helicopter
- Serial number
- 1690
- Airframe hours
- 2,624
- Engine
- Lycoming O-320-B2C, 160 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Instructional · Part 91
- Operator
- Ww Helicopters, LLC
- Registered owner
- Lloyd Aviation Inc
- Airworthiness certificate
- Standard, Normal
- Last inspection
- 100 hour · December 20, 1999 · 41 hours before
- Departed
- 57C
- Airport
- 57C · East Troy Municipal Arpt, runway 18, 1,900 × 150 ft, grass/turf
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 41
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Valid Medical--w/ waivers/lim
- Seat
- Left
- Flight hours
- 3,350 total · 1,800 in this make and model · 3,260 as pilot in command · 120 in the last 90 days · 35 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 160° at 8 knots
- Visibility
- 4 statute miles
- Lowest ceiling
- 4,300 ft overcast
- Temperature
- 18 °F, dew point 16 °F
- Altimeter
- 29.00 inHg
- Observed at
- UES, 16 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.