# NTSB SEA08LA079: Cessna P210N, N4796K, Carefree, AZ, February 10, 2008 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: February 9, 2008, 18:45 local (Feb 10, 2008, 01:45 UTC) - Place: Carefree, AZ - Coordinates: 33.818054, -111.897781 - Nearby events: https://openairdocs.org/map.md?lat=33.8181&lon=-111.8978&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-flare/touchdown: Landing gear collapse](https://openairdocs.org/ntsb-events/094) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report April 30, 2008 - Report: Approved by Office Director - Parties: Federal Aviation Adminsitration (FSDO) - NTSB case key (mKey): 67540 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA08LA079 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/67540/pdf - Page: https://openairdocs.org/ntsb/SEA08LA079 ## Probable cause The collapse of the landing gear during landing rollout for undetermined reasons. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Not determined](https://openairdocs.org/ntsb-findings/05000000): Not determined › Not determined · Unknown/Not determined (probable cause); cases with it: [Cessna P210N, 11 cases](https://openairdocs.org/ntsb-findings/05000000/cases.md?model=2073454), [All aircraft, 2,247 cases](https://openairdocs.org/ntsb-findings/05000000/cases.md) - [Landing gear system: gear position and warning](https://openairdocs.org/ntsb-findings/01023260): Aircraft › Aircraft systems · Failure; cases with it: [Cessna P210N, 3 cases](https://openairdocs.org/ntsb-findings/01023260/cases.md?model=2073454), [All aircraft, 37 cases](https://openairdocs.org/ntsb-findings/01023260/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-flare/touchdown: Landing gear collapse](https://openairdocs.org/ntsb-events/094) (defining event); cases with it: [Cessna P210N, 21 cases](https://openairdocs.org/ntsb-events/094/sequence.md?model=2073454), [All aircraft, 1,787 cases](https://openairdocs.org/ntsb-events/094/sequence.md) - [Landing-flare/touchdown: Runway excursion](https://openairdocs.org/ntsb-events/300); cases with it: [Cessna P210N, 12 cases](https://openairdocs.org/ntsb-events/300/sequence.md?model=2073454), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) - [Landing-flare/touchdown: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Cessna P210N, 31 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=2073454), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis The pilot reported that during the landing roll, he thought he "had blown the left tire" followed by the airplane settling onto its left side a second or two later. The airplane veered to the left and exited the runway, subsequently coming to rest upright adjacent to the runway. Post accident examination of the landing gear revealed that the gear warning horn was inoperative due to a disconnected cable between the throttle switch and the warning horn. Further examination, to include functionality testing of the landing gear, revealed no additional anomalies that would have prevented the gear from extending to the down and locked position. ## Factual narrative On February 9, 2008, about 1845 mountain standard time, a Cessna P210N, N4796K, was substantially damaged when the left main landing gear collapsed during landing roll on runway 24 at the Sky Ranch Airport at Carefree (18AZ), Carefree, Arizona. The commercial pilot, the sole occupant of the airplane, was not injured. The airplane was registered to 96K LLC of Scottsdale, Arizona, and operated by the pilot under the provisions of 14 Code of Federal Regulations Part 91. Night visual meteorological conditions prevailed and no flight plan was filed for the cross-country flight that departed from the Telluride Regional Airport, Telluride, Colorado, at 1700. In a written statement, the pilot reported that after an uneventful flight, he entered the traffic pattern for runway 24 and proceeded to make a "normal left pattern approach." Shortly after landing, during the landing roll, the pilot stated he thought he "had blown the left tire" followed by the airplane settling onto its left side a second or two later. The airplane veered to the left and exited the runway, subsequently coming to rest upright adjacent to the runway. A Federal Aviation Administration inspector conducted a post accident inspection and reported that the left horizontal stabilizer and elevator sustained substantial damage during the accident sequence. Further examination revealed the landing gear warning horn was found inoperative due to a disconnected cable between the throttle switch and the warning horn. The inspector reported that during the landing gear examination the gear was cycled (with the airplane elevated on jack stands) to the down and locked position and no anomalies were noted. The reason for the gear collapse is undetermined. ## Aircraft - Registration: [N4796K](https://openairdocs.org/aircraft/N4796K), registered now, S/N P21000323, built 1979 (OpenAirDocs) - Reported make and model: Cessna P210N - Registry model: [Cessna P210N](https://openairdocs.org/model/cessna-p210n) (registry code 2073454) (OpenAirDocs) - Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: P21000323 - Airframe hours: 2772 - Engines: Continental TSIO-520-15B 300 horsepower reciprocating - Damage: Substantial damage - Flight: Business, Part 91 - Registered owner: Glen Doyon - Airworthiness certificate: Standard, Normal - Last inspection: Annual, August 1, 2007, 45 hours before - Departed: KTEX, Telluride, CO - Destination: 18AZ, Carefree, AL - Airport: 18AZ, Sky Ranch Airport at Carefree, runway 24, 4,037 × 50 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 53; injuries: none; commercial, flight instructor; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, with waivers/limitations; last flight review September 1, 2006; seat: left; flight hours: 2,012 total, 450 in this make and model, 1,890 as pilot in command, 34 in the last 90 days, 15 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Night - Wind: calm - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 59 °F, dew point 41 °F - Altimeter: 30.05 inHg - Observed at: DVT, 12 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 20080209010399A](https://openairdocs.org/incident/20080209010399A), Feb 9, 2008: Cessna P210N, Carefree, AZ, Substantial damage. (-23) Inspected runway where aircraft landed at 18AZ on 2/13/2008. The airport manager escorted FAA personnel and showed the main tire and tail tie-down skid… 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.