# NTSB LAX06LA225: Cessna 210K, N12PF, Novato, CA, July 5, 2006 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: July 5, 2006, 11:00 local (18:00 UTC) - Place: Novato, CA - Coordinates: 38.136943, -122.552223 - Nearby events: https://openairdocs.org/map.md?lat=38.1369&lon=-122.5522&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report February 28, 2008 - Report: Approved by Office Director - Parties: Federal Aviation Administration - NTSB case key (mKey): 64063 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX06LA225 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/64063/pdf - Page: https://openairdocs.org/ntsb/LAX06LA225 ## Probable cause The failure of the left main landing gear to extend for undetermined reasons. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Main gear collapsed, landing - roll - reason for occurrence undetermined (cause) - terrain condition - runway ## Analysis The pilot said that while on the downwind to land on runway 13 she and her passenger remembered hearing the gear extending, and she confirmed the landing gear down and locked indicator light was illuminated. After touchdown the airplane veered to the left off the runway and came to rest in a ditch. A witness to the accident said that he saw the airplane on final approach and the left landing gear was not in the locked position and was trailing below the airplane. During the recovery process it was noted that both the nose gear and the right main gear were in the extended and locked position. The left main gear was in the wheel well and was manually pulled out of the wheel well and locked into the down position. ## Factual narrative On July 5, 2006, about 1100 Pacific daylight time, a Cessna 210K, N12PF, veered off the runway and impacted a ditch during landing at Gnoss Field Airport, Novato, California. The owner/pilot was operating the airplane under the provisions of 14 CFR Part 91. The commercial pilot and one passenger were not injured; the airplane sustained substantial damage. The cross-country personal flight departed San Carlos, California, about 1020. Visual meteorological conditions prevailed, and no flight plan had been filed. The National Transportation Safety Board investigator-in-charge interviewed the pilot on the telephone. The pilot reported that while on the downwind to land on runway 13 she and her passenger remembered hearing the gear extending, and she confirmed the landing gear indicator light was illuminated. After touchdown the airplane veered to the left, departed the runway, and came to rest in a ditch. A witness to the accident said that he saw the airplane on final approach and the left landing gear was not in the locked position and was trailing below the airplane. During recovery process it was noted that both the nose gear and the right main gear were in the extended and locked position. The left main gear was in the wheel well and was manually pulled out of the wheel well and locked into the down position. The airport personnel reported that the tire marks on the runway indicated that the left main gear had not supported any substantial weight of the airplane during the landing. ## Aircraft - Registration: [N12PF](https://openairdocs.org/deregistered/N12PF-2006-09-14), registration cancelled 2006-09-14, S/N 21059440, built 1971 (OpenAirDocs) - Reported make and model: Cessna 210K - Registry model: [Cessna 210K](https://openairdocs.org/model/cessna-210k) (registry code 2073446) (OpenAirDocs) - Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 210-59940 - Airframe hours: 4183 - Engines: Continental IO-520L 300 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Last inspection: Annual, November 1, 2005, 57 hours before - Departed: SQL, SAN CARLOS, CA - Destination: O56, NOVATO, CA - Airport: O56, Gnoss Field, runway 13, 3,300 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 67; injuries: none; flight instructor, commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, with waivers/limitations; last flight review June 1, 2006; seat: left; flight hours: 4,942 total, 2,333 in this make and model, 4,718 as pilot in command, 47 in the last 90 days, 22 in the last 30 days, 3 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 120° at 6 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 70 °F, dew point 55 °F - Altimeter: 30.02 inHg - Observed at: DVO ## 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 20060705029939A](https://openairdocs.org/incident/20060705029939A), Jul 5, 2006: Cessna 210K, Novato, CA, Substantial damage. (-23) On July 5, 2006, acft N12PF departed san carlos airport (sql) headed for Gnoss Field Airport (dvo). During landing attempt at (dvo), acft main gear… 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.