# NTSB WPR22LA102: Darrell D. Dugger Mustang II, N121DD, Cheyenne, WY, February 20, 2022 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: February 20, 2022, 15:30 local (22:30 UTC) - Place: Cheyenne, WY - Coordinates: 41.155639, -104.81047 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=41.1556&lon=-104.8105&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Defining event: [Takeoff: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed - Report: Approved by Office Director - Investigation class: Class 4 - Basic report with no Prelim publish - NTSB office: Western Pacific Region - Parties: Federal Aviation Administration - NTSB case key (mKey): 104682 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR22LA102 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/104682/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=104682 - Page: https://openairdocs.org/ntsb/WPR22LA102 ## Probable cause The pilot’s failure to maintain directional control during the takeoff roll which resulted in an aborted takeoff and collision with terrain. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Dugger Darrell D MUSTANG II, 1 case](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=05609I8), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Performance/control parameters: directional control](https://openairdocs.org/ntsb-findings/01062020): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Dugger Darrell D MUSTANG II, 1 case](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=05609I8), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Takeoff: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Dugger Darrell D MUSTANG II, 1 case](https://openairdocs.org/ntsb-events/230/sequence.md?model=05609I8), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) ## Analysis The pilot of the tailwheel equipped airplane reported that, during the takeoff roll he encountered a right crosswind, and the airplane began to deviate to the left of the runway centerline. He attempted to correct the movement with application of right rudder, but the pilot was unsuccessful in correcting his course. To avoid a possible runway excursion, the pilot decided to fly in ground effect. He rotated and the airplane lifted off the runway; however, the left wing immediately dropped, and the airplane struck the ground. The pilot aborted the takeoff attempt, and the airplane landed in grass. The left wing was substantially damaged. The pilot reported no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N121DD](https://openairdocs.org/aircraft/N121DD), registered now, S/N 12136, built 2013 (OpenAirDocs) - Reported make and model: Darrell D. Dugger Mustang II - Registry model: [Dugger Darrell D MUSTANG II](https://openairdocs.org/model/dugger-darrell-d-mustang-ii) (registry code 05609I8) (OpenAirDocs) - Registry engine: [Lycoming O-320-D3G](https://openairdocs.org/engine/lycoming-o-320-d3g) (registry code 42156, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 12136 - Year built: 2013 - Airframe hours: 137 - Engines: Lycoming O-320-D3G 160 hp reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Annual, June 14, 2022, 57 hours before - Destination: PUB, Pueblo, CO - Airport: CYS, Cheyenne Rgnl/Jerry Olson Fld, runway 13, 6,690 × 150 ft, concrete - Equipment: ADS-B ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 70; injuries: none; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, without waivers/limitations; last flight review April 25, 2021; seat: left; restraint: 4-point; flight hours: 712 total, 60 in this make and model, 648 as pilot in command, 16 in the last 90 days, 9 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 180° at 11 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 52 °F, dew point 7 °F - Altimeter: 29.71 inHg - Observed at: KFEW, 3 nm away - METAR: KFEW 202258Z AUTO 18011KT 10SM CLR 11/M14 A2971 RMK AO2 SLP028 T01071141 PWINO $ ## 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 20220220002399A](https://openairdocs.org/incident/20220220002399A), Feb 20, 2022: Dugger Darrell D MUSTANG II, Cheyenne, WY, Substantial damage. N121DD was taking off on runway 13 when it veered sharply to the left shortly after rotation. The aircraft hit the infield sod area , skipped accross the… ## Docket (2 files) The files NTSB released with the investigation on April 19, 2022, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=104682. 3.8 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 9 pages, 2.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13352808&FileExtension=pdf&FileName=6120_Redacted-Rel.pdf - Accident photograph (item 2, PDF, 1 page, 1.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13352670&FileExtension=pdf&FileName=Accident%20Photographs-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.