# NTSB CEN21LA196: Mobi-light CCX-2300, N220XC, Loveland, CO, April 23, 2021 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: April 23, 2021, 13:03 local (19:03 UTC) - Place: Loveland, CO - Coordinates: 40.449088, -105.0097 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=40.4491&lon=-105.0097&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: Approved by Office Director - Investigation class: Class 4 - Basic report with no Prelim publish - NTSB office: Central Region - Parties: Federal Aviation Administration - NTSB case key (mKey): 102969 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN21LA196 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/102969/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=102969 - Page: https://openairdocs.org/ntsb/CEN21LA196 ## Probable cause The pilot’s failure to maintain directional control during landing, which resulted in a ground loop, and the failure of both pilots to establish who was in control of the airplane. ## 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: [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: [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Attention/monitoring: attention](https://openairdocs.org/ntsb-findings/02021510): Personnel issues › Psychological · Pilot (probable cause); cases with it: [All aircraft, 226 cases](https://openairdocs.org/ntsb-findings/02021510/cases.md) - [Attention/monitoring: task monitoring/vigilance](https://openairdocs.org/ntsb-findings/02021520): Personnel issues › Psychological · Instructor/check pilot (probable cause); cases with it: [All aircraft, 330 cases](https://openairdocs.org/ntsb-findings/02021520/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: [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing-landing roll: Abnormal runway contact](https://openairdocs.org/ntsb-events/090); cases with it: [All aircraft, 1,506 cases](https://openairdocs.org/ntsb-events/090/sequence.md) ## Analysis The pilot reported that, while practicing crosswind landings in a tailwheel-equipped airplane with a flight instructor, when the airplane touched down, directional control was lost and the airplane ground-looped striking the right wing on the runway. The airplane sustained substantial damage to the right wing and aileron. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The pilot reported that he believed the flight instructor took control of the airplane during the landing. Conversely, the flight instructor reported that he believed the pilot was still in control of the airplane at the time of the accident. ## Aircraft - Registration: N220XC (not matched to a registry record) - Reported make and model: Mobi-light CCX-2300 - Category: Airplane, amateur-built - Serial number: CCX2300_0014 - Year built: 2020 - Engines: Lycoming IO390 215 hp reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Registered owner: Anchor Roofing LLC - Airworthiness certificate: Special, Experimental (Special) - Destination: Same as departure - Airport: FNL, Northern Colorado Rgnl, runway 15/33, 8,500 × 100 ft, asphalt - Equipment: Onboard weather, Electronic primary flight display, Satellite tracking device, Stall warning system, ADS-B, Electronic multifunction display ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 44; injuries: none; private; airplane ratings: single-engine land; medical: class 2, without waivers/limitations; last flight review December 6, 2020; seat: front; restraint: 4-point; flight hours: 168.9 total, 76.9 in this make and model, 83.9 as pilot in command, 80 in the last 90 days, 18.4 in the last 30 days, 1.3 in the last 24 hours - Flight instructor; age 22; injuries: none; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, without waivers/limitations; seat: rear; restraint: 4-point; flight hours: 932 total, 23.9 in this make and model, 101.3 in the last 90 days ## Weather - Conditions: Visual (VMC), Day - Wind: 280° at 9 knots - Visibility: 10 statute miles - Lowest ceiling: 9,500 ft broken - Temperature: 54 °F, dew point 25 °F - Altimeter: 29.85 inHg - Observed at: KFNL - METAR: KFNL 231856Z 28009KT 10SM FEW060 BKN095 12/M04 A2985 RMK AO2 SLP091 T01221039 ## 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 20210423005229A](https://openairdocs.org/incident/20210423005229A), Apr 23, 2021: Mobi-Light CCX-2300, Fort Collins, CO, Substantial damage. On March 23, 2021 at approximately 1905Z, N220XC a cub crafters x cub ground looped after landing on runway 33 at Northern Colorado Regional Airport (kfnl) in… ## Docket (4 files) The files NTSB released with the investigation on July 8, 2021, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=102969. 4.4 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 11 pages, 3.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=12264465&FileExtension=pdf&FileName=6120_Redacted-Rel.pdf - Pilot's statement (item 2, PDF, 2 pages, 147 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=12262965&FileExtension=pdf&FileName=Pilot%20Statement_Redacted-Rel.pdf - Flight instructor statement (item 3, PDF, 1 page, 47 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=12263575&FileExtension=pdf&FileName=CFI%20Statement-Rel.pdf - Photos (item 4, PDF, 2 pages, 1.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=12262975&FileExtension=pdf&FileName=Photo%20Array-Rel.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.