# NTSB CHI02LA204: Luscombe 8F, N840B, Farmington, MO, July 17, 2002 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: July 17, 2002, 10:30 local (15:30 UTC) - Place: Farmington, MO - Coordinates: 37.779285, -90.420227 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=37.7793&lon=-90.4202&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report December 6, 2002 - Report: Approved by Office Director - Parties: FAA-St. Lous, MO-FSDO - NTSB case key (mKey): 55326 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI02LA204 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/55326/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=55326 - Page: https://openairdocs.org/ntsb/CHI02LA204 ## Probable cause The locked brake and the aircraft control not being possible due to the locked brake. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Nose over, landing - roll - landing gear,normal brake system - locked (cause) - aircraft control - not possible (cause) ## Analysis The airplane nosed over during landing. The pilot stated that during the landing roll he, "heard a double clunking sound [and] felt my upper body go forward [and] the tail wheel lifted." He said that the airplane skidded nose down before ultimately nosing over. The pilot reported that the brake clip that holds the brake disk in place, "came off and lodged in the wheel causing an abrupt [and] harsh drag on [the] right wheel." The pilot listed having 482 hours of experience is the same make and model airplane as the accident airplane. ## Factual narrative On July 17, 2002, about 1030 central daylight time, a Luscombe 8F, N840B, piloted by a private pilot, sustained substantial damage when it nosed over during landing on runway 20 (4,221 feet by 75 feet, concrete), at the Farmington Regional Airport, Farmington, Missouri. The 14 CFR Part 91 personal flight was operating in visual meteorological conditions without a flight plan. The pilot was not injured. The local flight originated about 1015. In a written statement, the pilot stated that during the landing roll he, "heard a double clunking sound [and] felt my upper body go forward [and] the tail wheel lifted." He said that the airplane skidded nose down before ultimately nosing over. The pilot reported that the brake clip that holds the brake disk in place, "came off and lodged in the wheel causing an abrupt [and] harsh drag on [the] right wheel." The pilot listed having 482 hours of experience is the same make and model airplane as the accident airplane. ## Aircraft - Registration: [N840B](https://openairdocs.org/aircraft/N840B), registered now, S/N 6772, built 1950 (OpenAirDocs) - Reported make and model: Luscombe 8F - Registry model: [Luscombe 8F](https://openairdocs.org/model/luscombe-8f) (registry code 8190114) (OpenAirDocs) - Registry engine: [Continental C90 series](https://openairdocs.org/engine/continental-c90-series) (registry code 17009, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 6772 - Airframe hours: 1843.6 - Engines: Continental C-90-12F 90 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Paul V Graves - Airworthiness certificate: Standard, Normal - Last inspection: Annual, June 5, 2002, 2.6 hours before - Departed: FAM, Farmington, MO - Airport: FAM, Farmington Regional, runway 20, 4,221 × 75 ft, concrete ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 64; injuries: none; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; last flight review June 11, 2001; seat: left; flight hours: 600 total, 482 in this make and model, 600 as pilot in command, 17 in the last 90 days, 4 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 280° at 3 knots - Visibility: 10 statute miles - Lowest ceiling: 1,700 ft broken - Temperature: 79 °F, dew point 72 °F - Altimeter: 30.13 inHg - Observed at: FAM ## 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 20020717017009A](https://openairdocs.org/incident/20020717017009A), Jul 17, 2002: Luscom 8F, Farmington, MO, No damage. (-23) The pilot landed on runway 20 at Farmington. Upon touching down, the tail wheel began to shimmy. The pilot pushed the control stick forward in an effort… ## Other investigations on N840B (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 CHI93LA369](https://openairdocs.org/ntsb/CHI93LA369), Sep 18, 1993: Luscombe 8F (N840B), Festus, MO, substantial damage. Probable cause: a fatigue failure of the tailwheel spring. ## Docket (1 files) The files NTSB released with the investigation on October 31, 2002, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=55326. 349 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 349 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40463348&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-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.