# NTSB GAA19CA167: Cub Crafters CC18, N767CC, Yakima, WA, March 15, 2019 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: March 15, 2019, 16:30 local (23:30 UTC) - Place: Yakima, WA - Coordinates: 46.566944, -120.537223 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=46.5669&lon=-120.5372&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report November 6, 2019 - Report: Approved by Office Director - NTSB office: General Aviation Accidents - Parties: FAA - NTSB case key (mKey): 99123 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=GAA19CA167 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/99123/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=99123 - Page: https://openairdocs.org/ntsb/GAA19CA167 ## Probable cause The pilot's failure to maintain directional control during landing, which resulted in a ground loop, and the flight instructor's delayed remedial action. ## 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 CC18-180, 7 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=2470003), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) - [Action: delayed action](https://openairdocs.org/ntsb-findings/02041025): Personnel issues › Action/decision · Instructor/check pilot (probable cause); cases with it: [Cub Crafters CC18-180, 3 cases](https://openairdocs.org/ntsb-findings/02041025/cases.md?model=2470003), [All aircraft, 894 cases](https://openairdocs.org/ntsb-findings/02041025/cases.md) - [Use of equip/info: use of equip/system](https://openairdocs.org/ntsb-findings/02063015): Personnel issues › Task performance · Student/instructed pilot (probable cause); cases with it: [Cub Crafters CC18-180, 3 cases](https://openairdocs.org/ntsb-findings/02063015/cases.md?model=2470003), [All aircraft, 1,391 cases](https://openairdocs.org/ntsb-findings/02063015/cases.md) - [Wind: crosswind](https://openairdocs.org/ntsb-findings/03034040): Environmental issues › Conditions/weather/phenomena · Effect on operation; cases with it: [Cub Crafters CC18-180, 1 case](https://openairdocs.org/ntsb-findings/03034040/cases.md?model=2470003), [All aircraft, 1,008 cases](https://openairdocs.org/ntsb-findings/03034040/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Cub Crafters CC18-180, 6 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=2470003), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing: Attempted remediation/recovery](https://openairdocs.org/ntsb-events/060); cases with it: [Cub Crafters CC18-180, 7 cases](https://openairdocs.org/ntsb-events/060/sequence.md?model=2470003), [All aircraft, 1,422 cases](https://openairdocs.org/ntsb-events/060/sequence.md) - [Landing: Landing gear collapse](https://openairdocs.org/ntsb-events/094); cases with it: [Cub Crafters CC18-180, 1 case](https://openairdocs.org/ntsb-events/094/sequence.md?model=2470003), [All aircraft, 1,787 cases](https://openairdocs.org/ntsb-events/094/sequence.md) - [Landing: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Cub Crafters CC18-180, 5 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=2470003), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis The pilot receiving instruction in the tailwheel-equipped airplane reported that, during the landing roll of a touch-and-go landing, he added slight right correction followed by left correction. The airplane veered left, and the pilot added full right rudder, but the airplane ground looped to the left. The right main landing gear collapsed, and the right wing struck the ground. The airplane sustained substantial damage to the right wing. The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The airport's automated weather observation station reported that, about 23 minutes after the accident, the wind was from 170° at 6 knots. The pilot landed the airplane on runway 27. ## Factual narrative The pilot receiving instruction in the tailwheel-equipped airplane reported that, during the landing roll of a touch and go landing, he added slight right correction followed by left correction. The airplane veered to the left, the pilot added full right rudder, but the airplane ground looped to the left. The right main landing gear collapsed and the right wing struck the ground. The airplane sustained substantial damage to the right wing. The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The automated weather observation station located on the airport reported that, about 37 minutes after the accident, the wind was from 170° at 6 knots. The same automated station reported that, about 23 minutes after the accident, the wind was from 170° at 6 knots. The pilot landed the airplane on runway 27. ## Aircraft - Registration: [N767CC](https://openairdocs.org/aircraft/N767CC), registered now, S/N CC18-0046, built 2010 (OpenAirDocs) - Reported make and model: Cub Crafters CC18 (180) - Registry model: [Cub Crafters CC18-180](https://openairdocs.org/model/cub-crafters-cc18-180) (registry code 2470003) (OpenAirDocs) - Registry engine: [Lycoming O-360-C4P](https://openairdocs.org/engine/lycoming-o-360-c4p) (registry code 42289, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: CC18-0046 - Year built: 2010 - Airframe hours: 860 - Engines: Lycoming O-360-C4P 180 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: L-Bird Llc - Registered owner: L-Bird Llc - Airworthiness certificate: Standard, Normal - Last inspection: Annual, March 12, 2019 - Departed: YKM, Yakima, WA - Destination: YKM, Yakima, WA - Airport: YKM, Yakima Air Terminal/Mcallister, runway 27, 7,604 × 150 ft, asphalt - Equipment: ADS-B, Stall warning system ## Flight crew As NTSB recorded them. NTSB leaves out names. - Flight instructor; age 44; injuries: none; commercial, private, flight instructor; airplane ratings: single-engine sea, multi-engine land, single-engine land, multi-engine sea; instrument ratings: airplane; medical: class 2, without waivers/limitations; last flight review April 13, 2017; seat: rear; restraint: 3-point; flight hours: 599.7 total, 599.7 as pilot in command - Pilot; age 60; injuries: none; private; airplane ratings: single-engine land; medical: class 3, with waivers/limitations; last flight review May 12, 2018; seat: front; restraint: 3-point; flight hours: 151 total, 6 in this make and model, 95 as pilot in command, 6 in the last 90 days, 6 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 170° at 6 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 43 °F, dew point 28 °F - Altimeter: 30.36 inHg - Observed at: KYKM ## 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 20190315001419A](https://openairdocs.org/incident/20190315001419A), Mar 15, 2019: Cub Crafters Inc CC18-180, Yakima, WA, Substantial damage. During approach to the last landing, the pilot under instruction (pui) and CFI noticed the winds on final switched to a left quartering tailwind and decided to… ## Docket (3 files) The files NTSB released with the investigation on April 4, 2019, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=99123. 3.9 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 3.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40471654&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - Pilot's Statement (item 2, .PDF, 47 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40471655&FileExtension=.PDF&FileName=Pilot%27s%20Statement-Master.PDF - Accident Photo (item 3, .PDF, 1 photo, 91 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40471656&FileExtension=.PDF&FileName=Accident%20Photo-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.