# NTSB ERA22LA201: Cessna 172, N737UY, Union, SC, April 23, 2022 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Class 4 · Limited · Final report - Date: April 23, 2022, 18:54 local (22:54 UTC) - Place: Union, SC - Coordinates: 34.684841, -81.641312 - Nearby events: https://openairdocs.org/map.md?lat=34.6848&lon=-81.6413&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: Minor injuries - Injuries: 2 minor - Status: Completed - Report: Approved by Office Director - Investigation class: Class 4 - Basic report with no Prelim publish - NTSB office: Eastern Region Aviation - Parties: FAA - NTSB case key (mKey): 104992 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ERA22LA201 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/104992/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=104992 - Page: https://openairdocs.org/ntsb/ERA22LA201 ## Probable cause The pilot’s failure to maintain directional control during the landing roll, which resulted in a runway excursion and impact with terrain. ## 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: [Cessna 172N, 82 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=2072434), [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: [Cessna 172N, 150 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=2072434), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/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: [Cessna 172N, 81 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=2072434), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing-landing roll: Attempted remediation/recovery](https://openairdocs.org/ntsb-events/060); cases with it: [Cessna 172N, 22 cases](https://openairdocs.org/ntsb-events/060/sequence.md?model=2072434), [All aircraft, 1,422 cases](https://openairdocs.org/ntsb-events/060/sequence.md) - [Landing-landing roll: Runway excursion](https://openairdocs.org/ntsb-events/300); cases with it: [Cessna 172N, 81 cases](https://openairdocs.org/ntsb-events/300/sequence.md?model=2072434), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) - [Landing-landing roll: Collision during takeoff/land](https://openairdocs.org/ntsb-events/490); cases with it: [Cessna 172N, 18 cases](https://openairdocs.org/ntsb-events/490/sequence.md?model=2072434), [All aircraft, 1,309 cases](https://openairdocs.org/ntsb-events/490/sequence.md) ## Analysis The pilot stated that he was practicing touch and go landings. After landing, during the landing roll, when raised the flaps and added full power, the airplane veered to the right. He applied left rudder to stop the right turn and overcorrected. Then the airplane veered to the left and continued off the runway into a ditch, which resulted in substantial damage to the engine mounts. The pilot reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N737UY](https://openairdocs.org/aircraft/N737UY), registered now, S/N 17269696, built 1977 (OpenAirDocs) - Reported make and model: CESSNA 172 (N) - Registry model: [Cessna 172N](https://openairdocs.org/model/cessna-172n) (registry code 2072434) (OpenAirDocs) - Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 17269696 - Year built: 1977 - Airframe hours: 9523.5 - Engines: Lycoming O-320-D2J 160 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Last inspection: 100 hour, March 29, 2022 - Departed: UZA, Rock Hill, SC - Destination: Same as departure - Airport: 35A, Union County Airport, runway 23, 3,508 × 60 ft, asphalt - Equipment: ADS-B, Auto-pilot, Handheld GPS, Stall warning system ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 52; injuries: minor; private; airplane ratings: single-engine land; medical: class 3, with waivers/limitations; last flight review September 14, 2021; seat: left; restraint: lap only; flight hours: 113 total, 113 in this make and model, 48 as pilot in command, 1 in the last 90 days ## Weather - Conditions: Visual (VMC), Day - Wind: 170° at 6 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 77 °F, dew point 55 °F - Altimeter: 30.22 inHg - Observed at: LUX, 19 nm away - METAR: KLUX 232255Z AUTO 17006KT 10SM CLR 25/13 A3022 RMK AO2 ## 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 20220423005719A](https://openairdocs.org/incident/20220423005719A), Apr 23, 2022: Cessna 172N, Union, SC, Substantial damage. On April 23, 2022 at approximately 1847 hours (local), N737UY was performing a touch and go on runway 23 at Union County Airport (35A). The pilot stated, after… ## Docket (3 files) The files NTSB released with the investigation on May 26, 2022, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=104992. 2.5 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 11 pages, 2.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13833493&FileExtension=pdf&FileName=6120.1_Redacted-Rel.pdf - Memorandum for record a�� telephone interview, pilot (item 2, PDF, 1 page, 109 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13833937&FileExtension=pdf&FileName=Record%20of%20Interview-pilot-Rel.pdf - Photos (item 3, PDF, 3 pages, 383 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13921631&FileExtension=pdf&FileName=Investigative%20Photo%27s-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.