# NTSB LAX08CA210: Cessna TU206G, N4776U, Coeur d'Alene, ID, July 1, 2008 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: July 1, 2008, 10:00 local (17:00 UTC) - Place: Coeur d'Alene, ID - Coordinates: 47.779167, -116.821388 - Nearby events: https://openairdocs.org/map.md?lat=47.7792&lon=-116.8214&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Defining event: [Takeoff: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470) - Highest injury: No injuries - Injuries: 4 uninjured - Status: Completed, report September 26, 2008 - Report: Approved by Office Director - Parties: Federal Aviation Administration - NTSB case key (mKey): 68380 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX08CA210 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/68380/pdf - Page: https://openairdocs.org/ntsb/LAX08CA210 ## Probable cause The pilot's failure to maintain proper runway alignment and clearance from a large rock on the side of the runway. Contributing to the accident was the failure of the pilot to maintain the runway environment of his private strip clear of obstructions. ## 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 · Damaged/degraded; cases with it: [Cessna TU206G, 1 case](https://openairdocs.org/ntsb-findings/01023210/cases.md?model=2073357), [All aircraft, 241 cases](https://openairdocs.org/ntsb-findings/01023210/cases.md) - [Airport facilities/design: runway/landing area condition](https://openairdocs.org/ntsb-findings/03017035): Environmental issues › Operating environment · Not specified; cases with it: [Cessna TU206G, 1 case](https://openairdocs.org/ntsb-findings/03017035/cases.md?model=2073357), [All aircraft, 61 cases](https://openairdocs.org/ntsb-findings/03017035/cases.md) - [Performance/control parameters: heading/course](https://openairdocs.org/ntsb-findings/01062047): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Cessna TU206G, 1 case](https://openairdocs.org/ntsb-findings/01062047/cases.md?model=2073357), [All aircraft, 82 cases](https://openairdocs.org/ntsb-findings/01062047/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Takeoff: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470) (defining event); cases with it: [Cessna TU206G, 7 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=2073357), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis During the departure roll, as the airplane became airborne, the left main landing gear collided with a large rock on the left side of the pilot's private airstrip. From the cockpit the pilot visually confirmed that the damage seemed to be confined to the left wheel fairing, which was torn off, but could not discern any other damage. The airplane operated normally and the pilot landed without further incident. After landing, the pilot noted that the left tire was flat and the left main landing gear strut was damaged, including the gear box. The pilot stated that accident could have been prevented if he had ensured there were no rocks on the airstrip, and if he had maintained runway centerline. The pilot added that there were no preimpact mechanical malfunctions or failures with the airframe or engine. ## Factual narrative In a written statement, the pilot reported he intended to depart from his private airstrip about 250 miles from the destination airport. During the departure roll, as the airplane became airborne, the main landing gear collided with a large rock on the left side of the strip. The pilot visually confirmed the damage of the left wheel fairing (torn off), but could not discern any other damage. The airplane operated normally and the pilot landed without further incident. After landing, the pilot noted that the left tire was flat and the left main landing gear was damaged, including the gear box. In the section titled "RECOMMENDATION" in the NTSB Pilot/Operator Report, form 6120.1/2, the pilot stated that accident could have been prevented if he had ensured there were no rocks on the airstrip, and if he had maintained runway centerline. The pilot added that there were no preimpact mechanical malfunctions or failures with the airframe or engine. ## Aircraft - Registration: [N4776U](https://openairdocs.org/aircraft/N4776U), registered now, S/N U20605096, built 1979 (OpenAirDocs) - Reported make and model: Cessna TU206G - Registry model: [Cessna TU206G](https://openairdocs.org/model/cessna-tu206g) (registry code 2073357) (OpenAirDocs) - Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: U20605096 - Airframe hours: 2632 - Engines: Continental TSIO-520 reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Last inspection: Annual, December 1, 2007 - Departed: Monument, OR - Destination: COE, Coeur d'Alene, ID - Airport: NONE, Private Strip, runway 10, 1,500 × 20 ft, grass/turf ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 67; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3; last flight review January 1, 2008; flight hours: 2,880 total, 1,200 in this make and model, 20 in the last 90 days, 10 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Visibility: 10 statute miles - Lowest ceiling: none - Observed at: GCD ## 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 20080701841109A](https://openairdocs.org/incident/20080701841109A), Jul 1, 2008: Cessna TU206G, Coeur D'Alene, ID, Substantial damage. (-23) Departed private strip (not on charts) 10 miles south of monument airport (12S), monument, OR. Struck rock on takeoff and lost left wheel fairing.… ## Other investigations on N4776U (1) 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 WPR15LA022](https://openairdocs.org/ntsb/WPR15LA022), Oct 26, 2014: Cessna TU206G (N4776U), Monument, OR, substantial damage. Probable cause: The loss of braking action during the landing roll on a gravel runway for reasons that could not be determined based on the available information. 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.