GAA18CA272

NTSB accident investigation · Cub Crafters CC19 · Mesa, AZ · May 10, 2018

Accident · No injuriesData collectionFinal report
Date
May 10, 2018, 08:30 local (15:30 UTC)
Place
Mesa, AZ
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N82XCCub Crafters CC19
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report October 24, 2018
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20180510000349A
Case key
97229

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot’s failure to maintain directional control of the airplane during the landing roll.

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.

Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedCub Crafters CC19-180: 4 casesAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotCub Crafters CC19-180: 4 casesAll aircraft: 9,295 casesProbable cause

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

According to the pilot, he was seated in the front seat of the tandem-seat, tailwheel-equipped airplane and made a three-point landing and applied full aft stick pressure once the tailwheel was on the ground. He could not recall the airspeed, but the airplane abruptly veered to the left. The right main landing gear (MLG) collapsed, and subsequently, the the right wing struck the ground. The pilot-rated passenger, who was a flight instructor, reported that the purpose of the flight was to perform a prebuy inspection for the pilot. He reported that there was a slight crosswind from the left about 3 knots during the three-point landing, and the stall warning horn activated. He described the landing as "perfect," but during the landing roll, the airplane veered hard left and ground looped. The Federal Aviation Administration aviation safety inspector who examined the airplane after the accident determined that the right MLG wheel assembly "folded under the end of the gear leg and then separated." The airplane manufacturer examined the wheel assembly and reported that "an extreme sideload on the right tire caused the subsequent cascading failure of the right wheel and brake assembly," which likely resulted from the ground loop. The METAR at the accident airport reported that, about the time of the accident, the wind was from 180° at 7 knots. The pilot landed on runway 22L.

Factual narrative

According to the pilot, he was seated in the front seat of the tandem seat, tailwheel equipped airplane, and made a three-point landing and applied full aft stick pressure once the tailwheel was on the ground. He could not recall the airspeed, but the airplane abruptly veered to the left. The right main landing gear collapsed and subsequently the right wing struck the ground. The pilot asserted that the loss of control was the result of a mechanical failure of the right main landing gear wheel race and bearings. The pilot-rated passenger, who was a flight instructor, reported that the purpose of the flight was to perform a pre-buy inspection for the pilot. He reported that there was a slight crosswind from the left about 3 knots during the three-point landing, and the stall warning horn activated. He described the landing as "perfect", but during the landing roll, the airplane veered hard to the left and ground looped. The Federal Aviation Administration, Aviation Safety Inspector who examined the airplane after the accident determined that the right main landing gear wheel assembly "folded under the end of the gear leg and then separated." The airplane manufacture examined the wheel assembly, and reported that, "an extreme sideload on the right tire caused the subsequent cascading failure of the right wheel and brake assembly." The METAR at the accident airport reported that about the time of the accident, the wind was from 180° at 7 knots. The pilot landed to runway 22L.

Aircraft

Registration
N82XC
Reported as
Cub Crafters CC19 (180)
Category
Airplane
Serial number
CC19-0018
Built
2017
Airframe hours
30
Engine
Lycoming O-360-C1G, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Ferry · Part 91
Operator
82xcub LLC.
Registered owner
82xcub LLC.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 26, 2017
Departed
DVT · Dear Valley, AZ
Destination
DVT · Dear Valley, AZ
Airport
FFZ · Falcon Fld, runway 22L, 5,101 × 100 ft, asphalt
Equipment
Electronic flight bag or handheld device, ADS-B, Stall warning system

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
Pilot
Age
74
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
September 27, 2017
Seat
Front
Restraint
4-point
Flight hours
1,324 total · 12 in this make and model · 1,324 as pilot in command · 6 in the last 90 days · 4 in the last 30 days
Role
Pilot-rated passenger
Injuries
None
Certificates
Airline transport, Flight engineer
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Seat
Rear
Restraint
4-point

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 7 knots
Visibility
30 statute miles
Lowest ceiling
None
Temperature
88 °F, dew point 28 °F
Altimeter
29.84 inHg
Observed at
KFFZ

Docket · 5

The files NTSB released with the investigation on September 17, 2018, on NTSB’s docket system: statements, records, photos and specialists’ reports.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.