# NTSB CHI05LA097: Cessna 310, N3622D, Clear Lake, MN, April 13, 2005 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: April 13, 2005, 09:00 local (14:00 UTC) - Place: Clear Lake, MN - Coordinates: 45.444442, -93.971107 - Nearby events: https://openairdocs.org/map.md?lat=45.4444&lon=-93.9711&mi=10 - Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report August 29, 2006 - Report: Approved by Office Director - Parties: FAA - NTSB case key (mKey): 61433 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI05LA097 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/61433/pdf - Page: https://openairdocs.org/ntsb/CHI05LA097 ## Probable cause The collapse of the nose landing gear as a result of the pilot performing improper maintenance on the airplane due to his failure to properly safety the nose landing gear door. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Airframe/component/system failure/malfunction, cruise - door,landing gear - not safetied (cause) - maintenance - improper, pilot in command (cause) - On ground/water encounter with terrain/water, landing - landing gear,nose gear - collapsed (cause) - maintenance,annual inspection - not complied with, pilot in command - Nose over, landing - terrain condition - ground ## Analysis The airplane was damaged when the nose landing gear collapsed during landing and the airplane nosed over. Investigation revealed that a cotter pin on the nose landing gear door had been removed by the pilot and was not replaced. During the flight, the nose landing gear failed to retract and subsequently collapsed during the landing. The airplane's most recent annual inspection had been performed 13 months prior to the accident and no special flight authorization had been granted. ## Factual narrative On April 13, 2005, about 0900 central daylight time, a Cessna 310, N3622D, piloted by an airline transport pilot, sustained substantial damage during landing on runway 18 (3,000 feet by 150 feet, asphalt), at the Leaders/Clear Lake Airport, Clear Lake, Minnesota. The 14 CFR Part 91 personal flight was operating in visual meteorological conditions without a flight plan. The pilot was not injured. The flight originated from the St. Cloud Regional Airport, St. Cloud, Minnesota, at 0845. According to a Federal Aviation Administration Inspector that responded to the accident, the pilot had removed a cotter pin from the nose landing gear door link prior to the flight so that he could gain access to the nose landing gear compartment. The cotter pin was not replaced. During the flight, the nose gear failed to retract and subsequently, the nose landing gear collapsed during the landing and the airplane nosed over. Review of the airplane maintenance records showed that the most recent annual inspection was performed on March 9, 2004, 13 months prior to the accident. No special flight authorization had been granted for the accident flight. ## Aircraft - Registration: [N3622D](https://openairdocs.org/deregistered/N3622D-2005-09-29), registration cancelled 2005-09-29, S/N 35322, built 1956 (OpenAirDocs) - Reported make and model: Cessna 310 - Registry model: [Cessna 310](https://openairdocs.org/model/cessna-310) (registry code 2074202) (OpenAirDocs) - Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 35322 - Airframe hours: 5313 - Engines: Continental O-470 240 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Lvh Aircraft Inc - Airworthiness certificate: Standard, Normal - Last inspection: Annual, March 1, 2004 - Departed: STC, ST CLOUD, MN - Destination: 8Y6, Clear Lake, MN - Airport: 8Y6, Leaders Clear Lake, runway 18, 3,000 × 150 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 67; injuries: none; airline transport, commercial; airplane ratings: single-engine sea, multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, with waivers/limitations; seat: left ## Weather - Conditions: Visual (VMC), Day - Wind: 60° at 5 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 43 °F, dew point 28 °F - Altimeter: 30.25 inHg - Observed at: STC, 7 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 20050413009819A](https://openairdocs.org/incident/20050413009819A), Apr 13, 2005: Cessna 310, Clear Lake, MN, Destroyed. (-23) Nose gear failed to retract after departure. Attempted to free nose gear without success. Landed in Clear Lake, MN and aircraft overturned onto runway… 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.