# NTSB ERA14CA276: Swearingen SA 226AT, N120SC, Dayton, TN, June 3, 2014 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Data collection · Final report - Date: June 2, 2014, 23:50 local (Jun 3, 2014, 03:50 UTC) - Place: Dayton, TN - Coordinates: 35.489097, -85.009658 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=35.4891&lon=-85.0097&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-flare/touchdown: Landing gear not configured](https://openairdocs.org/ntsb-events/095) - Highest injury: Minor injuries - Injuries: 1 minor - Status: Completed, report October 27, 2014 - Report: Approved by Office Director - NTSB office: Eastern Region Aviation - NTSB case key (mKey): 89348 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ERA14CA276 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/89348/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=89348 - Page: https://openairdocs.org/ntsb/ERA14CA276 ## Probable cause The pilot's failure to extend the landing gear during the approach, which resulted in a gear-up landing. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Action: forgotten action/omission](https://openairdocs.org/ntsb-findings/02041035): Personnel issues › Action/decision · Pilot (probable cause); cases with it: [Swearingen SA-226AT, 1 case](https://openairdocs.org/ntsb-findings/02041035/cases.md?model=8780405), [All aircraft, 440 cases](https://openairdocs.org/ntsb-findings/02041035/cases.md) - [Use of equip/info: use of equip/system](https://openairdocs.org/ntsb-findings/02063015): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Swearingen SA-226AT, 1 case](https://openairdocs.org/ntsb-findings/02063015/cases.md?model=8780405), [All aircraft, 1,391 cases](https://openairdocs.org/ntsb-findings/02063015/cases.md) - [Landing gear system](https://openairdocs.org/ntsb-findings/01023200): Aircraft › Aircraft systems · Not used/operated (probable cause); cases with it: [Swearingen SA-226AT, 1 case](https://openairdocs.org/ntsb-findings/01023200/cases.md?model=8780405), [All aircraft, 113 cases](https://openairdocs.org/ntsb-findings/01023200/cases.md) - [Use of equip/info: use of checklist](https://openairdocs.org/ntsb-findings/02063030): Personnel issues › Task performance · Pilot; cases with it: [Swearingen SA-226AT, 1 case](https://openairdocs.org/ntsb-findings/02063030/cases.md?model=8780405), [All aircraft, 336 cases](https://openairdocs.org/ntsb-findings/02063030/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-flare/touchdown: Abnormal runway contact](https://openairdocs.org/ntsb-events/090); cases with it: [Swearingen SA-226AT, 1 case](https://openairdocs.org/ntsb-events/090/sequence.md?model=8780405), [All aircraft, 1,506 cases](https://openairdocs.org/ntsb-events/090/sequence.md) - [Landing-flare/touchdown: Landing gear not configured](https://openairdocs.org/ntsb-events/095) (defining event); cases with it: [Swearingen SA-226AT, 2 cases](https://openairdocs.org/ntsb-events/095/sequence.md?model=8780405), [All aircraft, 584 cases](https://openairdocs.org/ntsb-events/095/sequence.md) ## Analysis Approximately five miles from the destination airport, the pilot conducted the before landing checklist and thought he had extended the landing gear. He continued the landing approach, and the airplane touched down with the landing gear retracted, resulting in substantial damage to the wing spar. The pilot did not report any mechanical anomalies that would have precluded normal operation prior to the accident. ## Factual narrative Approximately five miles from the destination airport, the pilot conducted the before landing checklist and thought he had extended the landing gear. He continued the landing approach, and the airplane touched down with the landing gear retracted, resulting in substantial damage to the wing spar. The pilot did not report any mechanical anomalies that would have precluded normal operation prior to the accident. ## Aircraft - Registration: [N120SC](https://openairdocs.org/deregistered/N120SC-2014-09-18), registration cancelled 2014-09-18, S/N AT067, built 1978 (OpenAirDocs) - Reported make and model: SWEARINGEN SA 226AT (AT) - Registry model: [Swearingen SA-226AT](https://openairdocs.org/model/swearingen-sa-226at) (registry code 8780405) (OpenAirDocs) - Registry engine: [AiResearch TPE331-6-251M](https://openairdocs.org/engine/airesearch-tpe331-6-251m) (registry code 01521, turbo-prop) (OpenAirDocs) - Category: Airplane - Serial number: AT067 - Year built: 1978 - Airframe hours: 25903 - Engines: Honeywell TPE-331-10UA 1000 horsepower turbo prop; Honeywell TPE-331-10UA 1000 horsepower turbo prop - Damage: Substantial damage - Flight: Part 135 - Operator: McNeely Charter Service - Registered owner: Mcneely Charter Service Inc - Airworthiness certificate: Standard, Normal - Last inspection: 100 hour, March 19, 2014 - Departed: LRD, Laredo, TX - Destination: 2A0, Dayton, TN - Flight plan: IFR - Airport: 2A0, Mark Anton Airport, runway 3, 5,001 × 100 ft, asphalt - Equipment: Stall warning system ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 47; injuries: minor; airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, without waivers/limitations; last flight review March 11, 2014; seat: left; restraint: 3-point; flight hours: 15,000 total, 3,800 in this make and model, 10,500 as pilot in command, 150 in the last 90 days, 50 in the last 30 days, 7 in the last 24 hours ## Weather - Conditions: Visual (VMC), Night - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 68 °F, dew point 64 °F - Altimeter: 30.03 inHg - Observed at: 2A0 ## 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 20140602007429A](https://openairdocs.org/incident/20140602007429A), Jun 2, 2014: Swearingen SA-226AT, Dayton, TN, Substantial damage. Aircraft landed with landing gear up. Aircraft was lifted and landing gear doors cleaned (mud and grass) and landing gear went down. Outside of gear doors were… ## Other investigations on N120SC (1) 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. - [NTSB CHI08CA074](https://openairdocs.org/ntsb/CHI08CA074), Feb 5, 2008: Swearingen SA-226AT (N120SC), Ankeny, IA, substantial damage. Probable cause: The pilot's failure to maintain directional control during the takeoff roll. Contributing to the accident was the snow on the runway and the snowbank. ## Docket (4 files) The files NTSB released with the investigation on October 20, 2014, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=89348. 8.2 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 612 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40417828&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF - Photo 1 - Damaged Hull (Photo Courtesy of FAA) (item 2, .PDF, 2.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40417829&FileExtension=.PDF&FileName=Photo%201%20-%20Damaged%20Hull%20(Photo%20Courtesy%20of%20FAA)-Master.PDF - Photo 2 - Fuselage Floor (Photo Courtesy of FAA) (item 3, .PDF, 3.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40417830&FileExtension=.PDF&FileName=Photo%202%20-%20Fuselage%20Floor%20(Photo%20Courtesy%20of%20FAA)-Master.PDF - Photo 3 - Broken Spar (Photo Courtesy of FAA) (item 4, .PDF, 1.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40417831&FileExtension=.PDF&FileName=Photo%203%20-%20Broken%20Spar%20(Photo%20Courtesy%20of%20FAA)-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.