# NTSB CHI07LA036: Navion Navion G, N33FL, Coalton, OH, December 11, 2006 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Limited investigation · Final report - Date: December 11, 2006, 14:07 local (19:07 UTC) - Place: Coalton, OH - Coordinates: 39.102222, -82.610832 - Nearby events: https://openairdocs.org/map.md?lat=39.1022&lon=-82.6108&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: Minor injuries - Injuries: 1 minor - Status: Completed, report March 31, 2008 - Report: Approved by Office Director - Parties: Federal Aviation Administration - NTSB case key (mKey): 65051 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI07LA036 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/65051/pdf - Page: https://openairdocs.org/ntsb/CHI07LA036 ## Probable cause The pilot failed to follow the checklist and lower the landing gear. A factor in the accident was the fence post. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Wheels up landing, landing - flare/touchdown - gear extension - not performed, pilot in command (cause) - checklist - not followed, pilot in command (cause) - On ground/water collision with object, landing - roll - object - pole (contributing factor) - terrain condition - grass ## Analysis The pilot reported that the left main landing gear failed to lock down for landing. He stated he was able to keep the airplane on the runway for a distance of approximately 150 feet, where the airplane then exited the right side of the runway. The pilot stated that the airplane's right wing struck a fence post, causing the outboard portion of the right wing to separate from the airplane, and the airplane came to rest on a westerly heading. After the accident, the airplane was moved to a hangar where it was resting on the extended left and right main landing gear and the nose landing gear. During a conversation with a Federal Aviation Administration inspector, the pilot stated that he did not extend the landing gear and landed gear-up. ## Factual narrative On December 11, 2006, about 1407 eastern standard time, a Navion Navion G, N33FL, owned and piloted by a private pilot, sustained substantial damage on impact with terrain when the landing gear collapsed during landing at Baisden Airport (4OI9), Coalton, Ohio. Visual meteorological conditions prevailed at the time of the accident. The personal flight was operating under 14 CFR Part 91. The pilot was uninjured. The flight originated at approximately 1340. The pilot reported that he was staying in the pattern to perform takeoffs and landings on runway 36 (2,600 feet by 60 feet, turf). He reported that on his first landing, the left main landing gear failed to lock down. He stated he was able to keep the airplane on the runway for a distance of approximately 150 feet, where the airplane departed the right side of the runway. The pilot stated that the airplane's right wing struck a fence post, causing the outboard portion of the right wing to separate from the airplane, and the airplane came to rest on a westerly heading. The pilot reported that he was able to close the fuel mixture and turn off the ignition switch. An investigator from the Federal Aviation Administration (FAA) arrived on the scene after the accident. When the FAA inspector arrived on-scene, the airplane had already been moved from the accident location to a nearby hangar. The airplane was resting in the hangar on both extended main wheels and the extended nose wheel. A functional test of the landing gear system was not performed. The inspector noted that the right wing was separated approximately 6 feet in from the wing tip, the left wing was damaged, and the propeller was damaged. The inspector also reported that the throttle was in the full open position and the mixture control was in the full rich position. In the Aircraft Crash Report supplied by the Ohio State Highway Patrol, scars from the accident airplane's propeller were noted in the ground and continued for approximately 98 feet, ending approximately 150 feet short of where the airplane came to rest. During a conversation with a Federal Aviation Administration inspector, the pilot stated that he did not extend the landing gear and landed gear-up. ## Aircraft - Registration: [N33FL](https://openairdocs.org/deregistered/N33FL-2017-04-07), registration cancelled 2017-04-07, S/N NAV-4-2449, built 1962 (OpenAirDocs) - Reported make and model: Navion Navion G - Registry model: [Navion NAVION G](https://openairdocs.org/model/navion-navion-g) (registry code 6150120) (OpenAirDocs) - Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: NAV-4-2449 - Airframe hours: 3142.9 - Engines: Continental IO-470-4 260 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Last inspection: Annual, January 1, 2006 - Departed: 4OI9, Coalton, OH - Destination: 4OI9 - Airport: 4OI9, Baisden, runway 36, 2,600 × 60 ft, grass/turf ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 71; injuries: minor; private; airplane ratings: single-engine land; medical: class 3, with waivers/limitations; last flight review December 1, 2004; seat: left; flight hours: 600 total, 60 in this make and model, 600 as pilot in command, 8 in the last 90 days, 2 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 0° at 0 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 46 °F, dew point 28 °F - Altimeter: 30.40 inHg - Observed at: LHQ, 39 nm away ## 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 20061211029309A](https://openairdocs.org/incident/20061211029309A), Dec 11, 2006: Tmpson NAVIONG, Coalton, OH, Substantial damage. (-23) On December 11, 2006, at approximately 1400 EST, a navion g, N33FL, registered to and flown by the pilot [privacy data omitted] had the nose and left… 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.