- Date
- April 17, 2022, 11:45 local (17:45 UTC)
- Place
- Boise, ID
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N2929DCessna 170B
- Defining event
- Landing-landing roll: Loss of control on ground
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- Investigation class
- Class 4 - Basic report with no Prelim publish
- NTSB office
- Western Pacific Region
- Parties
- Federal Aviation Administration
- FAA report
- 20220417006069A
- Case key
- 104957
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 receiving instructions failure to maintain directional control during landing. Contributing to the accident was the flight instructor’s delayed remedial action.
Findings · 3
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, the pilot receiving instruction performed a wheel landing in the tailwheel equipped airplane. During the landing roll, with the tailwheel still off the ground, the airplane drifted left, which was counteracted with right rudder control. Shortly after, the right wing suddenly lifted, and the airplane veered to the right. Despite left rudder input, the airplane ground looped to the right. During the ground loop, the left main landing gear axle bolts broke, and the left wing was substantially damaged when it struck the ground. The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. He added that he felt the loss of control was due to a dust devil. At the time of the accident, the pilot was landing the airplane on runway 10R with wind from 180° at 4 knots.
Aircraft
- Registration
- N2929D
- Reported as
- Cessna 170B
- Category
- Airplane
- Serial number
- 26872
- Built
- 1956
- Airframe hours
- 5,173
- Engine
- Lycoming IO-360-M1B, 180 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Instructional · Part 91
- Registered owner
- Green Kyle R
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · December 5, 2021 · 5 hours before
- Airport
- BOI · Boise Air Terminal, runway 10R, 9,763 × 150 ft, asphalt
- Equipment
- Onboard weather, Electronic flight bag or handheld device, ADS-B
Flight crew · 2
As NTSB recorded them. NTSB leaves out names.
- Role
- Flight instructor
- Age
- 63
- Injuries
- None
- Certificates
- Airline transport, Commercial, Flight instructor
- Airplane ratings
- Multi-engine land, Single-engine land, Single-engine sea
- Instrument ratings
- Airplane
- Medical
- Class 2, With waivers/limitations
- Last flight review
- March 10, 2022
- Seat
- Right
- Restraint
- 4-point
- Flight hours
- 7,152 total · 900 in this make and model · 7,071 as pilot in command · 73 in the last 90 days · 14 in the last 30 days · 5 in the last 24 hours
- Role
- Pilot
- Age
- 50
- Injuries
- None
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, With waivers/limitations
- Last flight review
- March 12, 2021
- Seat
- Left
- Restraint
- 4-point
- Flight hours
- 268.6 total · 4.5 in this make and model · 18.3 as pilot in command · 5.8 in the last 90 days · 5.8 in the last 30 days · 2.1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 180° at 4 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 46 °F, dew point 21 °F
- Altimeter
- 30.29 inHg
- Observed at
- KBOI
- METAR
- KBOI 171753Z 18004KT 10SM CLR 08/M06 A3029 RMK AO2 SLP265 T00781061 10083 21011 51009 $
Docket · 2
The files NTSB released with the investigation on July 8, 2022, on NTSB’s docket system: statements, records, photos and specialists’ reports. 18.4 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.