# NTSB CEN21LA374: Cessna 140, N77365, Greenville, IL, August 13, 2021 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: August 13, 2021, 18:30 local (23:30 UTC) - Place: Greenville, IL - Coordinates: 38.83622, -89.37888 - Nearby events: https://openairdocs.org/map.md?lat=38.8362&lon=-89.3789&mi=10 - Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping) - Defining event: [Taxi-from runway: 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: Federal Aviation Administration - NTSB case key (mKey): 103727 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN21LA374 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/103727/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=103727 - Page: https://openairdocs.org/ntsb/CEN21LA374 ## Probable cause The pilot’s failure to maintain directional control during taxi which resulted in a ground loop. ## 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 140, 27 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=2071602), [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 140, 56 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=2071602), [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. - [Taxi-from runway: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Cessna 140, 46 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=2071602), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Taxi-from runway: Nose over/nose down](https://openairdocs.org/ntsb-events/096); cases with it: [Cessna 140, 49 cases](https://openairdocs.org/ntsb-events/096/sequence.md?model=2071602), [All aircraft, 2,287 cases](https://openairdocs.org/ntsb-events/096/sequence.md) ## Analysis The pilot reported that he conducted two normal full stop landings in the tailwheel equipped airplane. After the second landing he was taxiing back to park when the airplane ground looped. The propeller struck the ground, and the airplane nosed over. Both wings and the vertical stabilizer sustained substantial damage. The pilot reported that there no mechanical failures or malfunctions that would have precluded normal operations. ## Aircraft - Registration: [N77365](https://openairdocs.org/deregistered/N77365-2022-02-16), registration cancelled 2022-02-16, S/N 11806, built 1946 (OpenAirDocs) - Reported make and model: CESSNA 140 - Registry model: [Cessna 140](https://openairdocs.org/model/cessna-140) (registry code 2071602) (OpenAirDocs) - Registry engine: [Continental C85 series](https://openairdocs.org/engine/continental-c85-series) (registry code 17008, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 11806 - Year built: 1946 - Airframe hours: 3837 - Engines: Continental Motors O-200-A 100 hp reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Last inspection: Annual, March 4, 2021, 44 hours before - Airport: GRE, Greenville Airport, runway 360, 4,000 × 75 ft, asphalt - Equipment: None ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 74; injuries: none; private; airplane ratings: single-engine land; medical: class 3, with waivers/limitations; last flight review March 27, 2021; seat: left; restraint: lap only; flight hours: 636 total, 29 in this make and model, 573 as pilot in command, 18 in the last 90 days, 4 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 300° at 3 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 84 °F, dew point 73 °F - Altimeter: 30.08 inHg - Observed at: KSLO, 22 nm away - METAR: KSLO 132335Z AUTO 30003KT 10SM CLR 29/23 A3008 RMK AO2 T02890228 ## 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 20210813013729A](https://openairdocs.org/incident/20210813013729A), Aug 13, 2021: Cessna 140, Greenville, IL, Substantial damage. [privacy data omitted] Went to the Greenville Airport (gre) to practice some full-stop landings. He made a couple of successful landings in the grassy part of… ## Other investigations on N77365 (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 CHI66F0730](https://openairdocs.org/ntsb/CHI66F0730), Apr 3, 1966: Cessna 140 (N77365), Springfield, IL, substantial damage ## Docket (2 files) The files NTSB released with the investigation on January 10, 2022, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=103727. 4.6 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 9 pages, 4.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=12635811&FileExtension=pdf&FileName=6120%20printed_Redacted-Rel.pdf - Postaccident photos (item 2, PDF, 2 pages, 184 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=12635701&FileExtension=pdf&FileName=photos-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.