# NTSB CEN24LA222: Cessna 172I, N8483L, Ada, OK, June 13, 2024 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: June 13, 2024, 15:30 local (20:30 UTC) - Place: Ada, OK - Coordinates: 34.8, -96.67 - Nearby events: https://openairdocs.org/map.md?lat=34.8000&lon=-96.6700&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing: 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: Central Region - Parties: FAA - NTSB case key (mKey): 194472 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN24LA222 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/194472/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=194472 - Page: https://openairdocs.org/ntsb/CEN24LA222 ## Probable cause The student pilot’s failure to maintain directional control during landing resulting in a runway excursion and impact with a sign. ## 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 172I, 3 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=2072426), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) - [Object/animal/substance: sign/marker](https://openairdocs.org/ntsb-findings/03022015): Environmental issues › Physical environment · Effect on equipment; cases with it: [Cessna 172I, 1 case](https://openairdocs.org/ntsb-findings/03022015/cases.md?model=2072426), [All aircraft, 214 cases](https://openairdocs.org/ntsb-findings/03022015/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Cessna 172I, 7 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=2072426), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing: Collision during takeoff/land](https://openairdocs.org/ntsb-events/490); cases with it: [Cessna 172I, 6 cases](https://openairdocs.org/ntsb-events/490/sequence.md?model=2072426), [All aircraft, 1,309 cases](https://openairdocs.org/ntsb-events/490/sequence.md) ## Analysis The student pilot reported that during landing the airplane ballooned and the right wing dipped. She said that she overcorrected, and the airplane went to the left side of the runway and struck a sign resulting in substantial damage to the airplane’s fuselage. She reported that there were no mechanical failures or malfunctions that contributed to the accident. ## Aircraft - Registration: [N8483L](https://openairdocs.org/aircraft/N8483L), registered now, S/N 17256683, built 1968 (OpenAirDocs) - Reported make and model: CESSNA 172I - Registry model: [Cessna 172I](https://openairdocs.org/model/cessna-172i) (registry code 2072426) (OpenAirDocs) - Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 17256683 - Year built: 1968 - Airframe hours: 3200.3 - Engines: Lycoming O-320-E2D 150 hp reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: Chickasha Wings Inc - Registered owner: Chickasha Wings Inc - Airworthiness certificate: Standard, Utility; Standard, Normal - Last inspection: 100 hour, May 2, 2024 - Departed: CHK, Chickasha, OK - Destination: CHK, Chickasha, OK - Airport: ADH, Ada Rgnl, runway 18/36, 6,203 × 100 ft, asphalt - Equipment: Stall warning system, ADS-B, Electronic flight bag or handheld device ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 28; injuries: none; student; medical: class 1, with waivers/limitations; seat: left; restraint: 3-point; flight hours: 24 total, 24 in this make and model, 2 as pilot in command, 15 in the last 90 days, 10 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 150° at 11 knots, gusting 14 - Visibility: 7 statute miles - Lowest ceiling: none - Temperature: 91 °F, dew point 72 °F - Altimeter: 29.96 inHg - Observed at: KADH - METAR: KADH 132035Z AUTO 15011G14KT 7SM HZ CLR 33/22 A2996 RMK AO2 ## Other investigations on N8483L (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 DEN71FXD39](https://openairdocs.org/ntsb/DEN71FXD39), Nov 30, 1970: Cessna 172I (N8483L), Broomfield, CO, substantial damage ## Docket (3 files) The files NTSB released with the investigation on September 12, 2024, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=194472. 5.8 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 9 pages, 4.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17501616&FileExtension=pdf&FileName=6120_Redacted-Rel.pdf - Accident photograohs (item 2, PDF, 2 pages, 562 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17501363&FileExtension=pdf&FileName=Photos-Rel.pdf - E-mails with pilot (item 3, PDF, 3 pages, 898 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17501626&FileExtension=pdf&FileName=Pilot%20e-mail_Redacted-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.