- Date
- August 24, 2017, 13:35 local (20:35 UTC)
- Place
- Bremerton, WA
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Takeoff
- Aircraft
- N7198JRobinson Helicopter R22
- Defining event
- Takeoff: Dynamic rollover
- Weather
- Visual (VMC) · Day
- Status
- Completed · report November 27, 2017
- Report
- Approved by Office Director
- NTSB office
- General Aviation Accidents
- Parties
- FAA
- FAA report
- 20170824010449A
- Case key
- 95890
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 student pilot’s improper bank control during takeoff, which resulted in a dynamic rollover.
Findings · 2
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
The flight instructor reported that, after the student pilot performed several practice approaches, they landed the helicopter, and the flight instructor exited. The instructor reported that, after the start, the student pilot attempted to take off; the left skid lifted off the ground, but the right skid did not. Subsequently, the helicopter rolled to the right and came to rest on its right side. The helicopter sustained substantial damage to the main rotor system. The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the helicopter that would have precluded normal operation.
Factual narrative
The flight instructor reported that, after the student pilot performed several practice approaches, they landed the helicopter and the flight instructor exited. The instructor reported that after the start, the student pilot attempted to takeoff; the left skid lifted off the ground, but the right skid did not. Subsequently, the helicopter rolled to the right and came to rest on its right side. The helicopter sustained substantial damage to the main rotor system. The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the helicopter that would have precluded normal operation.
Aircraft
- Registration
- N7198J
- Reported as
- Robinson Helicopter R22
- Category
- Helicopter
- Serial number
- 3232
- Built
- 2001
- Airframe hours
- 7,188.1
- Engine
- Lycoming O-360-J2A, 145 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Instructional · Part 91
- Airworthiness certificate
- Standard, Normal
- Last inspection
- 100 hour · July 27, 2017
- Departed
- PWT · Bremerton, WA
- Destination
- PWT · Bremerton, WA
- Airport
- PWT · Bremerton National, runway 20, 6,000 × 150 ft, asphalt
- Equipment
- Unknown
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
- Student pilot
- Age
- 48
- Injuries
- None
- Certificate
- Student
- Medical
- Class 2, Without waivers/limitations
- Seat
- Right
- Restraint
- 3-point
- Flight hours
- 87.3 total · 86 in this make and model · 26.7 in the last 90 days · 12.3 in the last 30 days · 1.3 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Variable at 4 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- 3,500 ft broken
- Temperature
- 64 °F, dew point 52 °F
- Altimeter
- 30.11 inHg
- Observed at
- KPWT
Docket · 2
The files NTSB released with the investigation on October 25, 2017, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.0 MB in all.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.