# NTSB ERA22LA400: Aeronca 7AC, N85748, Marysville, OH, September 1, 2022 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: September 1, 2022, 19:00 local (23:00 UTC) - Place: Marysville, OH - Coordinates: 40.224663, -83.351469 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=40.2247&lon=-83.3515&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: Eastern Region Aviation - Parties: FAA/FSDO - NTSB case key (mKey): 105880 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ERA22LA400 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/105880/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=105880 - Page: https://openairdocs.org/ntsb/ERA22LA400 ## Probable cause The pilot’s failure to maintain directional control during landing. ## 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: [Aeronca 7AC, 26 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=2110102), [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: [Aeronca 7AC, 43 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=2110102), [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: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Aeronca 7AC, 28 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=2110102), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) ## Analysis The pilot of the tailwheel-equipped airplane was practicing takeoffs and landings on a turf runway. While on his third landing of the day he touched down and the airplane suddenly started to move to the left. He applied right rudder but the airplane did not respond as he expected it to, and it continued left off a steep embankment. During the runway excursion the fuselage was substantially damaged. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N85748](https://openairdocs.org/aircraft/N85748), registered now, S/N 7AC-4497, built 1955 (OpenAirDocs) - Reported make and model: AERONCA 7AC - Registry model: [Aeronca 7AC](https://openairdocs.org/model/aeronca-7ac) (registry code 2110102) (OpenAirDocs) - Registry engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) (OpenAirDocs) - Category: Airplane - Serial number: 7AC-4497 - Year built: 1946 - Airframe hours: 3653.5 - Engines: Continental C85-12-F 85 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Last inspection: Annual, April 22, 2022 - Destination: Same as departure - Airport: MRT, Union County, runway 8, 2,702 × 81 ft, grass/turf - Equipment: None ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 70; injuries: none; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: basicmed; last flight review October 10, 2020; seat: front; restraint: 3-point; flight hours: 446 total, 24 in this make and model, 326 as pilot in command, 12 in the last 90 days, 6 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 40° at 5 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 79 °F, dew point 63 °F - Altimeter: 30.07 inHg - Observed at: MRT - METAR: KMRT 012319Z AUTO 04005KT 10SM SCT065 26/17 A3007 RMK AO1 ## 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 20220901015189A](https://openairdocs.org/incident/20220901015189A), Sep 1, 2022: Aeronca 7AC, Marysville, OH, Substantial damage. This office received an aircraft accident/incident preliminary notice of a crash which occurred at Union County Airport (mrt) Marysville, OH in which an… ## Docket (3 files) The files NTSB released with the investigation on September 13, 2022, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=105880. 3.5 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 11 pages, 2.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=14447092&FileExtension=pdf&FileName=6120_ERA22LA400_Redacted-Rel.pdf - Pilot's statement (item 2, PDF, 1 page, 248 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=14447946&FileExtension=pdf&FileName=PIC%20Statement%20to%20FAA_Redacted-Rel.pdf - Photographs (item 3, PDF, 3 pages, 1.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=14448025&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.