# NTSB GAA18CA272: Cub Crafters CC19, N82XC, Mesa, AZ, May 10, 2018 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: May 10, 2018, 08:30 local (15:30 UTC) - Place: Mesa, AZ - Coordinates: 33.460834, -111.728332 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=33.4608&lon=-111.7283&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report October 24, 2018 - Report: Approved by Office Director - NTSB office: General Aviation Accidents - Parties: FAA - NTSB case key (mKey): 97229 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=GAA18CA272 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/97229/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=97229 - Page: https://openairdocs.org/ntsb/GAA18CA272 ## Probable cause The pilot’s failure to maintain directional control of the airplane during the landing roll. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: directional control](https://openairdocs.org/ntsb-findings/01062020): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Cub Crafters CC19-180, 4 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=2470004), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Cub Crafters CC19-180, 4 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=2470004), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Landing gear system: wheel/ski/float](https://openairdocs.org/ntsb-findings/01023246): Aircraft › Aircraft systems · Capability exceeded; cases with it: [Cub Crafters CC19-180, 1 case](https://openairdocs.org/ntsb-findings/01023246/cases.md?model=2470004), [All aircraft, 48 cases](https://openairdocs.org/ntsb-findings/01023246/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Cub Crafters CC19-180, 4 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=2470004), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing-landing roll: Landing gear collapse](https://openairdocs.org/ntsb-events/094); cases with it: [Cub Crafters CC19-180, 1 case](https://openairdocs.org/ntsb-events/094/sequence.md?model=2470004), [All aircraft, 1,787 cases](https://openairdocs.org/ntsb-events/094/sequence.md) - [Landing-landing roll: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Cub Crafters CC19-180, 3 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=2470004), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## 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](https://openairdocs.org/aircraft/N82XC), registered now, S/N CC19-0018, built 2017 (OpenAirDocs) - Reported make and model: CUB CRAFTERS INC CC19 (180) - Registry model: [Cub Crafters CC19-180](https://openairdocs.org/model/cub-crafters-cc19-180) (registry code 05632CR) (OpenAirDocs) - Registry engine: [Lycoming IO-390 series](https://openairdocs.org/engine/lycoming-io-390-series) (registry code 41678, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: CC19-0018 - Year built: 2017 - Airframe hours: 30 - Engines: 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 ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 74; injuries: none; 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 - Pilot-rated passenger; injuries: none; 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 ## FAA reports on this event (1) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 20180510000349A](https://openairdocs.org/incident/20180510000349A), May 10, 2018: Cub Crafters Inc CC19-180, Mesa, AZ, Substantial damage. N82XC, CC19, landing on rwy 22L when he ground looped and struck his right wing on the runway. The aircraft called inbound from the NE with the correct… ## Docket (5 files) The files NTSB released with the investigation on September 17, 2018, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=97229. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 1.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40466728&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - Passenger Rated Pilot Statement (item 2, .PDF): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40466729&FileExtension=.PDF&FileName=Passenger%20Rated%20Pilot%20Statement-Master.PDF - FAA Statement (item 3, .PDF, 11 photos, 3.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40466730&FileExtension=.PDF&FileName=FAA%20Statement-Master.PDF - COS Committee Meeting Minutes (item 4, .PDF, 20 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40466731&FileExtension=.PDF&FileName=COS%20Committee%20Meeting%20Minutes-Master.PDF - Photos (item 5, .PDF, 3 photos, 306 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40466732&FileExtension=.PDF&FileName=Photos-Master.PDF From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.