# NTSB CEN09CA457: Cessna 310, N3106L, Fort Worth, TX, July 10, 2009 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: July 10, 2009, 17:10 local (22:10 UTC) - Place: Fort Worth, TX - Coordinates: 32.983333, -97.316665 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=32.9833&lon=-97.3167&mi=10 - Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping) - Defining event: [Taxi-into takeoff position: Landing gear collapse](https://openairdocs.org/ntsb-events/094) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report September 30, 2009 - Report: Approved by Office Director - NTSB office: Central Region - Parties: FAA Fort Worth FSDO - NTSB case key (mKey): 74344 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN09CA457 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/74344/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=74344 - Page: https://openairdocs.org/ntsb/CEN09CA457 ## Probable cause The failure of the pivot pin in the side brace of the right main landing gear resulting in the gear collapse during taxi for undetermined reasons. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Landing gear system: main gear strut/axle/truck](https://openairdocs.org/ntsb-findings/01023213): Aircraft › Aircraft systems · Malfunction (probable cause); cases with it: [Cessna 310J, 1 case](https://openairdocs.org/ntsb-findings/01023213/cases.md?model=2074226), [All aircraft, 86 cases](https://openairdocs.org/ntsb-findings/01023213/cases.md) - [Not determined](https://openairdocs.org/ntsb-findings/05000000): Not determined › Not determined · Unknown/Not determined (probable cause); cases with it: [Cessna 310J, 4 cases](https://openairdocs.org/ntsb-findings/05000000/cases.md?model=2074226), [All aircraft, 2,247 cases](https://openairdocs.org/ntsb-findings/05000000/cases.md) - [Landing gear system: main landing gear](https://openairdocs.org/ntsb-findings/01023210): Aircraft › Aircraft systems · Inadequate inspection; cases with it: [Cessna 310J, 2 cases](https://openairdocs.org/ntsb-findings/01023210/cases.md?model=2074226), [All aircraft, 241 cases](https://openairdocs.org/ntsb-findings/01023210/cases.md) - [Landing gear system: main landing gear](https://openairdocs.org/ntsb-findings/01023210): Aircraft › Aircraft systems · Malfunction; cases with it: [Cessna 310J, 2 cases](https://openairdocs.org/ntsb-findings/01023210/cases.md?model=2074226), [All aircraft, 241 cases](https://openairdocs.org/ntsb-findings/01023210/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Taxi-into takeoff position: Landing gear collapse](https://openairdocs.org/ntsb-events/094) (defining event); cases with it: [Cessna 310J, 3 cases](https://openairdocs.org/ntsb-events/094/sequence.md?model=2074226), [All aircraft, 1,787 cases](https://openairdocs.org/ntsb-events/094/sequence.md) ## Analysis The airline transport pilot had been holding short of the runway and was taxiing onto the runway to begin his takeoff from a standing start. As the airplane was half way through its 90 degree left turn the right main landing gear collapsed and the right wing and the right horizontal stabilizer struck the ground. There was substantial damage to the airplane. The pilot, who was the only occupant, was not injured. The FAA inspector who responded to the accident scene said the pivot pin was missing from the bellcrank on the right main landing gear side brace lock link. According to maintenance records this airplane had flown only four hours in the previous 40 months. The airplane had flown two hours in the nine days since the most recent annual inspection had been completed. ## Factual narrative The airline transport pilot had been holding short of the runway and was taxiing onto the runway to begin his takeoff from a standing start. As the airplane was half way through its 90 degree left turn the right main landing gear collapsed and the right wing and the right horizontal stabilizer struck the ground. There was substantial damage to the airplane. The pilot, who was the only occupant, was not injured. The FAA inspector who responded to the accident scene said the pivot pin was missing from the bellcrank on the right main landing gear side brace lock link. According to maintenance records this airplane had flown only four hours in the previous 40 months. The airplane had flown two hours in the nine days since the most recent annual inspection had been completed. ## Aircraft - Registration: [N3106L](https://openairdocs.org/deregistered/N3106L-2013-07-02), registration cancelled 2013-07-02, S/N 310J0106, built 1965 (OpenAirDocs) - Reported make and model: CESSNA 310 (J) - Registry model: [Cessna 310J](https://openairdocs.org/model/cessna-310j) (registry code 2074226) (OpenAirDocs) - Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 310J0106 - Airframe hours: 5128 - Engines: CONTINENTAL IO470 250 horsepower reciprocating; CONTINENTAL IO470 250 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Last inspection: Annual, July 1, 2009, 2 hours before - Departed: AFW, Fort Worth, TX - Destination: RVS, Tulsa, OK - Flight plan: IFR - Airport: AFW, Fort Worth Alliance, runway 16R, 8,220 × 150 ft, concrete ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 44; injuries: none; airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, without waivers/limitations; last flight review January 30, 2008; seat: left; flight hours: 3,508 total, 12 in this make and model, 3,244 as pilot in command, 6 in the last 90 days, 3 in the last 30 days, 3 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 180° at 15 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 104 °F, dew point 59 °F - Altimeter: 29.98 inHg - Observed at: AFW, 1 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 20090710011759A](https://openairdocs.org/incident/20090710011759A), Jul 10, 2009: Cessna 310J, Fort Worth, TX, Substantial damage. (-23) On July 10, 2009 at 18:30 a Cessna 310J, N3106L was taxing on to the active runway when his right main gear collapsed. The pilot was on a CFR part 91… ## Other investigations on N3106L (2) 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 OAK70D0173](https://openairdocs.org/ntsb/OAK70D0173), Nov 13, 1969: Cessna 310J (N3106L), Fulton, CA, substantial damage - [NTSB OAK70D0085](https://openairdocs.org/ntsb/OAK70D0085), Aug 1, 1969: Cessna 310J (N3106L), Annapolis, CA, substantial damage ## Docket (1 files) The files NTSB released with the investigation on August 10, 2009, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=74344. 694 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 694 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40317223&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.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.