# NTSB CHI02LA225: Cessna 140, N2070N, Cook, MN, July 23, 2002 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: July 23, 2002, 16:00 local (21:00 UTC) - Place: Cook, MN - Coordinates: 47.825553, -92.693611 - Nearby events: https://openairdocs.org/map.md?lat=47.8256&lon=-92.6936&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report April 23, 2003 - Report: Approved by Office Director - Parties: FAA- Minneapolis FSDO - NTSB case key (mKey): 55359 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI02LA225 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/55359/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=55359 - Page: https://openairdocs.org/ntsb/CHI02LA225 ## Probable cause The pilot's failure to maintain directional control of the airplane during the landing roll. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - on ground/water, landing - roll - directional control - not maintained, pilot in command (cause) - Main gear collapsed, landing - roll - landing gear,main gear attachment - overload ## Analysis The left main landing gear separated from the airplane while landing on runway 13. The pilot reported the approach was normal and after touchdown, the airplane continued straight on the runway for a short distance prior to veering to the right. The pilot reported he got the airplane back to the center of the runway at which time the wheel axle and brake assembly separated from the left main gear. The left main gear leg contacted the runway and the airplane was pulled to the left. The gear leg separated from the airplane and the fuselage, propeller, and left wing struck the runway. The airplane skidded off the side of the runway coming to rest in the grass. The weather observation taken at the Cook Municipal Airport, two minutes prior to the accident, recorded with winds as calm. The pilot reported the winds were variable out of the south at 5 - 6 knots. ## Factual narrative On July 23, 2002, at 1600 central daylight time, a Cessna 140, N2070N, owned and piloted by a private pilot, sustained substantial damage when the left main landing gear separated from the airplane while landing on runway 13 (3,200 feet by 75 feet dry/asphalt) at the Cook Municipal Airport (CQM), Cook, Minnesota. The pilot was not injured. Visual meteorological conditions prevailed at the time of the accident. The personal flight was operating under the provisions of Title 14 CFR Part 91 without a flight plan. The flight originated at the Cloquet Carlton County Airport (COQ), Cloquet, Minnesota, at 1500. The pilot reported the local winds were variable out of the south, and he elected to land on runway 13. He reported that the approach was normal and after touchdown, the airplane continued straight on the runway for a short distance prior to veering to the right. The pilot reported he got the airplane back to the center of the runway at which time the wheel axle and brake assembly separated from the left main gear. He reported the left main gear leg contacted the runway, and the airplane was pulled to the left. The gear leg then separated from the airplane and the fuselage, propeller, and left wing struck the runway. The airplane skidded off the side of the runway coming to rest in the grass. The weather observation taken at the Cook Municipal Airport, two minutes prior to the accident, recorded with winds as calm. The pilot reported the winds were variable out of the south at 5 - 6 knots. ## Aircraft - Registration: [N2070N](https://openairdocs.org/aircraft/N2070N), registered now, S/N 12306, built 1947 (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: 12306 - Airframe hours: 3747 - Engines: Continental C-90-14F 90 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Kevin D Horn - Airworthiness certificate: Standard, Normal - Last inspection: Annual, June 3, 2002, 5 hours before - Departed: COQ, Cloquet, MN - Destination: CQM, Cook, MN - Airport: CQM, Cook Municipal, runway 13, 3,200 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 57; injuries: none; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; last flight review December 21, 2001; seat: left; flight hours: 451 total, 27 in this make and model, 389 as pilot in command, 12 in the last 90 days, 5 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 0° at 0 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 72 °F, dew point 48 °F - Altimeter: 30.25 inHg - Observed at: CQM ## 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 20020723021309A](https://openairdocs.org/incident/20020723021309A), Jul 23, 2002: Cessna 140, Cook, MN, Substantial damage. (-23) Pilot written account reported that while landing on runway 13 with variable winds from south the right wing lifted slightly. He applied right aileron,… ## Docket (1 files) The files NTSB released with the investigation on March 17, 2003, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=55359. 347 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 347 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40463542&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.