- Date
- April 29, 2022, 12:30 local (19:30 UTC)
- Place
- Portland, OR
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N20640Cessna 180K
- Defining event
- Landing-landing roll: Runway excursion
- 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
- 20220429006989A
- Case key
- 105030
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 during landing on a wet surface with a tailwind, which resulted in a runway excursion.
Findings · 4
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, he initiated an approach to a private grass airstrip with a 5-knot tailwind. During the landing roll the airplane had limited brake effectiveness as the grass was wet. The airplane subsequently slid off the airstrip and collided with a fence. The right-side elevator was substantially damaged. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.
Aircraft
- Registration
- N20640
- Reported as
- Cessna 180K
- Category
- Airplane
- Serial number
- 18053202
- Built
- 1981
- Airframe hours
- 21,930
- Engine
- Continental IO-520-D, 300 hp, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Cahoon Neil T
- Airworthiness certificate
- Standard, Normal
- Last inspection
- 100 hour · April 5, 2021
- Departed
- KSPB · Scapoose, OR
- Destination
- Same as departure
- Airport
- None, runway UNK, 600 × 0 ft, grass/turf
- Equipment
- Stall warning system, Auto-pilot, 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
- 67
- Injuries
- None
- Certificates
- Airline transport, Flight engineer, Flight instructor
- Airplane ratings
- Multi-engine land, Single-engine sea, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Without waivers/limitations
- Seat
- Left
- Restraint
- 4-point
- Flight hours
- 18,000 total · 150 in this make and model · 9,000 as pilot in command · 150 in the last 90 days · 50 in the last 30 days · 2 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 150° at 5 knots
- Lowest ceiling
- None
- Observed at
- KSPB, 9 nm away
Docket · 2
The files NTSB released with the investigation on September 22, 2022, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.4 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.