# NTSB CEN10LA093: Dassault Falcon 20C, Eagle, CO, January 8, 2010 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: January 8, 2010, 12:25 local (19:25 UTC) - Place: Eagle, CO - Coordinates: 39.639541, -106.940216 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=39.6395&lon=-106.9402&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Defining event: [Takeoff: Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330) - Highest injury: No injuries - Injuries: 7 uninjured - Status: Completed, report July 22, 2010 - Report: Approved by Office Director - NTSB office: Central Region - Parties: BEA - Accredited Rep - French Government, FAA Flight Standards District Office - NTSB case key (mKey): 75251 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN10LA093 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/75251/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=75251 - Page: https://openairdocs.org/ntsb/CEN10LA093 ## Probable cause The flight crew’s improper preflight inspection and failure to remove the main landing gear wheel chock, resulting in damage and subsequent failure of the main landing gear tire during the takeoff roll. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Landing gear system: main landing gear](https://openairdocs.org/ntsb-findings/01023210): Aircraft › Aircraft systems · Failure (probable cause); cases with it: [All aircraft, 241 cases](https://openairdocs.org/ntsb-findings/01023210/cases.md) - [Planning/preparation](https://openairdocs.org/ntsb-findings/02061000): Personnel issues › Task performance · Pilot (probable cause); cases with it: [All aircraft, 113 cases](https://openairdocs.org/ntsb-findings/02061000/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Takeoff: Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330) (defining event); cases with it: [All aircraft, 994 cases](https://openairdocs.org/ntsb-events/330/sequence.md) - [Takeoff-rejected takeoff: Runway excursion](https://openairdocs.org/ntsb-events/300); cases with it: [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) ## Analysis During taxi the airplane was observed to run over a tire chock with the left main gear tire. During a turn out of the ramp, the left main gear was observed to run over the nose gear chock that had been removed from the nose gear by the pilot during pre-flight. During the departure roll, the left main gear tire failed and the pilot elected to abort the takeoff attempt. The airplane did not stop on the remaining runway surface and departed the runway overrun area, coming to rest in snow-covered terrain. An examination of the airplane's systems revealed no anomalies. ## Factual narrative On January 8, 2010, at 1225 mountain standard time, a Dassault Falcon 20C, Mexican registered XA-PCC, was substantially damaged during a runway overrun at Eagle County Regional Airport (KEGE), Eagle, Colorado. Visual meteorological conditions prevailed at the time of the accident. The international passenger flight was being conducted under the provisions of Title 14 Code of Federal Regulations Part 91 on an instrument flight rules flight plan. The captain, first officer, and five passengers were not injured. The flight was originating at the time of the accident and was en route to General Roberto Fierro Villalobos International Airport (MMCU), Chihuahua, Mexico. According to a telephone conversation with the airport manager, the left main landing gear tire "blew" during the departure roll. The captain was unable to stop the airplane in the distance remaining. The airplane proceeded 400 feet past the departure end and overrun area of the runway, into deep snow, resulting in both main landing gear collapsing and the right wing buckling. Examination of the wreckage revealed that both main gear tires were flat, and the left side main gear tire was fragmented with its parts found on the runway. An examination by a Federal Aviation Administration (FAA) inspector revealed no mechanical anomalies with the airplane. The FAA did note that there appeared to be a crease or shallow laceration that went across the tire tread on the left main landing gear tire. During a follow-up telephone conversation with the pilot, his perception was that the right side main gear tire failed during the take-off roll, not the left side tire. He further advised that he had not struck anything with the aircraft’s tires on the ramp while taxiing or on the runway during the take-off roll. In addition, he stated that the malfunction occurred at the 120-knot mark, that there were no anomalies with the airplanes braking systems, and that he simply could not stop on the remaining runway following the malfunction. The captain did not return the Pilot/Operator Aircraft Accident/Incident Report 6120.1/2 form despite several attempts from the Safety Board to obtain the required report. During pre-flight, the pilot was observed to remove the tire chock from the nose gear, but did not remove the tire chock from the left main gear. One witness heard the engines of the aircraft “spool up” to a high RPM (revolutions per minute) and then decrease speed as the airplane taxied over the left main gear tire chock. During the subsequent turn out of the ramp area, the airplane then taxied over the nose gear chock with the left main gear. A ramp agent heard the airplane increase in engine power and once in motion, taxi over the nose gear chock with the left main gear. ## Aircraft - Registration: XA-PCC (not matched to a registry record) - Reported make and model: Dassault Falcon 20C - Category: Airplane - Serial number: 159 - Engines: General Electric CF-700-2D2 2040 lbs thrust; General Electric CF-700-2D2 2040 lbs thrust - Damage: Substantial damage - Flight: Business, Part 91 - Operator: Aerotaxis dos mil - Registered owner: Aerotaxis dos mil - Airworthiness certificate: Unknown - Departed: KEGE, Eagle, CO - Destination: MMCU, Chihuahua - Flight plan: IFR - Airport: KEGE, Eagle County Airport, runway 25, 9,000 × 150 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 63; injuries: none; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, without waivers/limitations; seat: left; flight hours: 11,000 total, 5,000 in this make and model - Co-pilot; age 70; injuries: none; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; seat: right ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 9 °F, dew point -0 °F - Altimeter: 30.39 inHg - Observed at: KEGE, 1 nm away ## Docket (3 files) The files NTSB released with the investigation on May 10, 2010, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=75251. 313 KB in all. - Cockpit Voice Recorder 12 - Specialist's Factual Report (item 1, .PDF, 14 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40325805&FileExtension=.PDF&FileName=Cockpit%20Voice%20Recorder%2012%20-%20Specialist%27s%20Factual%20Report-Master.PDF - FAA Statement Notes (item 2, .PDF, 22 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40327118&FileExtension=.PDF&FileName=FAA%20Statement%20Notes-Redacted.PDF - Witness Statement (item 3, .PDF, 278 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40327119&FileExtension=.PDF&FileName=Witness%20Statement-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.