- Date
- April 10, 2022, 13:20 local (21:20 UTC)
- Place
- Chugiak, AK
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N8020LCessna 172H
- Defining event
- Landing-landing roll: Loss of control on ground
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- Investigation class
- Class 3
- NTSB office
- Alaska Regional Office
- Parties
- FAA
- FAA report
- 20220410004609A
- Case key
- 104935
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 maintain directional control while landing, which resulted in a runway excursion and nose over.
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 pilot reported that, upon touchdown on the asphalt runway, the airplane veered abruptly to the right. The airplane exited the runway, impacted a snowbank, and nosed over, resulting in substantial damage to the vertical stabilizer, rudder, and wings. Examination of the nose landing gear system revealed no pre-accident mechanical malfunctions or failures that would have precluded normal operation. An examination of the landing surface revealed tire witness marks consistent with the airplane touching down in a left-wing-low attitude and evidence that the right main tire did not contact the ground until after the airplane had departed the runway. Based on the tire witness marks and the lack of preaccident mechanical malfunctions with the airplane, the circumstances of the accident are consistent with the pilot’s failure to maintain directional control during the landing roll.
Factual narrative
On April 10, 2022, about 1320 Alaska standard time, a Cessna 172H airplane, N8020L, sustained substantial damage when it was involved in an accident near Birchwood, Alaska. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot reported that he was landing his tricycle-gear-equipped airplane. Upon touchdown on the asphalt runway, the airplane veered abruptly to the right. He attempted to correct to no avail. The airplane exited the runway, impacted a snowbank, and nosed over, resulting in substantial damage to the vertical stabilizer, rudder, and wings. Examination of the nose landing gear system revealed no pre-accident mechanical malfunctions or failures that would have precluded normal operation. An examination of the landing surface revealed tire witness marks consistent with the airplane touching down on the left main tire in a left-wing-low attitude. The right main tire did not contact the ground until after the airplane had departed the runway surface.
Aircraft
- Registration
- N8020L
- Reported as
- Cessna 172H
- Category
- Airplane
- Serial number
- 17256220
- Built
- 1967
- Airframe hours
- 6,879
- Engine
- Cont Motor O-320-E2D, 160 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- Denali Flyers LLC
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · April 8, 2021 · 52 hours before
- Departed
- PAUO · Willow, AK
- Destination
- PAMR · Anchorage, AK
- Flight plan
- VFR
- Airport
- PABV · Birchwood, runway 20R, 4,012 × 100 ft, asphalt
- Equipment
- ADS-B
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
- 62
- Injuries
- None
- Certificate
- Private
- Airplane ratings
- Single-engine sea, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 3, With waivers/limitations
- Last flight review
- May 30, 2021
- Seat
- Left
- Flight hours
- 1,800 total · 500 in this make and model
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 36 °F, dew point 12 °F
- Altimeter
- 30.67 inHg
- Observed at
- PABV
- METAR
- PABV 102156Z AUTO 00000KT 10SM CLR 02/M11 A3067 RMK AO2 SLP392 T00171106 FZRANO
Docket · 2
The files NTSB released with the investigation on August 23, 2023, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.0 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.
Other investigations on N8020L · 1
Matched to the same aircraft by N-number and date.