- Date
- October 12, 2023, 10:00 local (17:00 UTC)
- Place
- Mesa, AZ
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N4777VBoeing A75N1(PT17)
- 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
- FAA
- FAA report
- 20231012017069A
- Case key
- 193256
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 flight instructor’s failure to maintain directional control during the landing roll, which resulted in a ground loop.
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 of the tailwheel-equipped airplane reported that, while demonstrating a wheel landing during an instructional flight with a student in the rear seat, the nose swerved to the right upon lowering the tailwheel. The pilot corrected with left rudder input, but the airplane ground looped to the right, resulting in substantial damage to the left wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
Aircraft
- Registration
- N4777V
- Reported as
- Boeing A75N1(PT17)
- Category
- Airplane
- Serial number
- 75-5733
- Built
- 1943
- Airframe hours
- 2,000
- Engine
- Lycoming R-680, 225 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Instructional · Part 91
- Airworthiness certificate
- Standard, Normal
- Last inspection
- 100 hour · May 6, 2023
- Departed
- KFFZ · Mesa, AZ
- Destination
- Same as departure
- Airport
- IWA · Phoenix-Mesa Gateway, runway 12L, 9,300 × 150 ft, concrete
- Equipment
- ADS-B, Electronic flight bag or handheld device, Handheld GPS
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 · 2
As NTSB recorded them. NTSB leaves out names.
- Role
- Flight instructor
- Age
- 73
- Injuries
- None
- Certificates
- Flight instructor, Commercial
- Airplane ratings
- Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Waiver time limited special
- Last flight review
- August 11, 2022
- Seat
- Front
- Restraint
- 4-point
- Flight hours
- 3,000 total · 2,000 in this make and model
- Role
- Student pilot
- Age
- 37
- Injuries
- None
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, With waivers/limitations
- Last flight review
- August 31, 2022
- Seat
- Rear
- Restraint
- 4-point
- Flight hours
- 210 total · 9 in this make and model
Weather
- Conditions
- Visual (VMC) · Day
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 75 °F, dew point 45 °F
- Altimeter
- 29.76 inHg
- Observed at
- KIWA, 1 nm away
- METAR
- KIWA 121650Z VRB03KT 10SM CLR 24/07 A2976=
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 N4777V · 1
Matched to the same aircraft by N-number and date.