# NTSB WPR22LA163: Textron T206H, N20617, Santa Barbara, CA, April 21, 2022 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 3 · Limited · Final report - Date: April 21, 2022, 11:20 local (18:20 UTC) - Place: Santa Barbara, CA - Coordinates: 34.427688, -119.84068 - Nearby events: https://openairdocs.org/map.md?lat=34.4277&lon=-119.8407&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 3 - NTSB office: Western Pacific Region - Parties: Federal Aviation Administration - NTSB case key (mKey): 104985 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR22LA163 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/104985/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=104985 - Page: https://openairdocs.org/ntsb/WPR22LA163 ## Probable cause The loss of directional control for undetermined reasons. Contributing was the overstress fracture of the nose gear upper trunnion brace attach point. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Landing gear system: nose/tail landing gear](https://openairdocs.org/ntsb-findings/01023220): Aircraft › Aircraft systems · Failure; cases with it: [Textron T206H, 1 case](https://openairdocs.org/ntsb-findings/01023220/cases.md?model=2073343), [All aircraft, 185 cases](https://openairdocs.org/ntsb-findings/01023220/cases.md) - [Performance/control parameters: directional control](https://openairdocs.org/ntsb-findings/01062020): Aircraft › Aircraft oper/perf/capability · Unknown/Not determined (probable cause); cases with it: [Textron T206H, 3 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=2073343), [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. - [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Textron T206H, 2 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=2073343), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing-landing roll: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Textron T206H, 5 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=2073343), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis The pilot reported that during landing, the left main landing gear touched down first, followed by the right main landing gear. As the nose wheel landing gear settled onto the runway, the airplane immediately veered to the right. Despite the pilot’s control inputs, the airplane veered left and right several times. Postaccident examination of the airplane revealed that both wings struck the ground, and the outboard 6-8 inches of all three propeller blades were bent aft from contact with the runway. The upper trunnion of the nose gear shock strut deformation and missing material was consistent with shear tear out of the attachment bolt hole. The deformation of the material was consistent with an overstress fracture. No preimpact anomalies were observed on the airplane. ## Factual narrative On April 21, 2022, about 1120 Pacific daylight time, a Textron Aviation Inc. T206H, N20617, was substantially damaged when it was involved in an accident near Santa Barbara, California. The pilot and passenger were not injured. The airplane was operated under Title 14 Code of Federal Regulations Part 91 as a personal flight. The pilot reported that while landing on runway 25, the left main landing gear touched down first, followed by the right main landing gear. As the nose wheel landing gear settled onto the runway, the airplane immediately veered to the right. Despite the pilot’s control inputs, the airplane veered left and right several times, and both wings struck the ground before the airplane “nosed up onto the prop and stopped.” Postaccident examination of the airplane by a Federal Aviation Administration inspector revealed that both wings were substantially damaged. The upper nose gear trunnion was found pulled away from its attach point. The outboard 6-8 inches of all three propeller blades were bent aft. The upper portion of the nose gear shock strut containing the upper and lower trunnions were sent to the National Transportation Safety Board Materials Laboratory for further examination. The upper trunnion exhibited a damaged bolt hole where the right brace would be attached. The damage consisted of deformation and missing material consistent with shear tear out of the attachment bolt in a direction coincident with the long dimension of the brace. The fracture surface was smeared and did not yield any fractographic information. The deformation of the material was consistent with an overstress fracture. Additionally, the upper trunnion was slightly deformed, consistent with bending overstress. The repair facility that repaired the airplane following the accident reported that during the repair nothing abnormal was found with the airplane’s nosewheel steering or flight controls. ## Aircraft - Registration: [N20617](https://openairdocs.org/aircraft/N20617), registered now, S/N T20609522, built 2017 (OpenAirDocs) - Reported make and model: TEXTRON AVIATION INC T206H - Registry model: [Textron T206H](https://openairdocs.org/model/textron-t206h) (registry code 2073343) (OpenAirDocs) - Registry engine: [Lycoming TIO-540 series](https://openairdocs.org/engine/lycoming-tio-540-series) (registry code 41569, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: T20609522 - Year built: 2017 - Airframe hours: 662.4 - Engines: LYCOMING TIO-540 310 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Last inspection: Annual, July 27, 2021 - Departed: CRQ, Carlsbad, CA - Destination: Same as departure - Flight plan: IFR - Airport: SBA, Santa Barbara Municipal Airport, runway 25, 6,052 × 150 ft, asphalt - Equipment: Electronic primary flight display, Electronic multifunction display, Stall warning system ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 71; injuries: none; private; airplane ratings: single-engine sea; instrument ratings: airplane; medical: basicmed; last flight review June 17, 2020; seat: left; restraint: 3-point; flight hours: 1,073 total, 10.8 in this make and model, 1,060 as pilot in command, 15.4 in the last 90 days, 10.8 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 220° at 8 knots - Visibility: 10 statute miles - Lowest ceiling: 7,500 ft broken - Temperature: 63 °F, dew point 52 °F - Altimeter: 30.04 inHg - Observed at: KSBA - METAR: KSBA 211853Z 22008KT 10SM SCT038 BKN075 17/11 A3004 RMK AO2 SLP172 MTN TOPS OBSC E-W T01720106 ## 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 20220421005699A](https://openairdocs.org/incident/20220421005699A), Apr 21, 2022: Textron Aviation Inc T206H, Goleta, CA, Substantial damage. During landing and touch down of the nose landing gear the aircraft veered to the right, then to the left, back to the right contacting the RH wing tip on the… ## Docket (6 files) The files NTSB released with the investigation on April 10, 2024, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=104985. 4.9 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 9 pages, 1.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=16236145&FileExtension=pdf&FileName=6120_Redacted-Rel.pdf - Materials laboratory 22-086 (item 2, PDF, 12 pages, 1.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=14828068&FileExtension=pdf&FileName=Materials%20Laboratory%20Factual%20Report%2022-086-Rel.pdf - Email correspondence from repair facility (item 3, PDF, 1 page, 696 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=16237118&FileExtension=pdf&FileName=email%20from%20repair%20facility_Redacted-Rel.pdf - Record of conversation - previous landing incident pilot (item 4, PDF, 1 page, 65 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=16237391&FileExtension=pdf&FileName=previous%20incident%20pilot%20roc-Rel.pdf - FAA email correspondence (item 5, PDF, 1 page, 676 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=16236669&FileExtension=pdf&FileName=FAA%20correspondance_Redacted-Rel.pdf - Photo array (item 6, PDF, 2 pages, 2 photos, 660 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=16237548&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.