# NTSB DEN08LA028: Piper PA-22-150, N2736P, Canon City, CO, October 29, 2007 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: October 29, 2007, 16:30 local (22:30 UTC) - Place: Canon City, CO - Coordinates: 38.423332, -105.103614 - Nearby events: https://openairdocs.org/map.md?lat=38.4233&lon=-105.1036&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report January 31, 2008 - Report: Approved by Office Director - Parties: FAA-Denver FSDO - NTSB case key (mKey): 67075 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN08LA028 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/67075/pdf - Page: https://openairdocs.org/ntsb/DEN08LA028 ## Probable cause the failure of the landing gear hinge point attachment for undetermined reasons. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Airframe/component/system failure/malfunction, landing - roll - landing gear,main gear attachment - failure (cause) - On ground/water encounter with terrain/water, landing - roll - terrain condition - ground ## Analysis According to the pilot, he was practicing touch and go landings. During the sixth landing, he "felt a pop, and the airplane begin to settle on its right side." Subsequently, the airplane exited the right side of the runway, contacted terrain, and came to rest on its nose. The pilot reported no anomalies prior to the accident. Examination of the airplane revealed the right rear landing gear hinge point attachment had fractured, and the firewall was wrinkled. The reason for the hinge point attachment fracture was not determined. ## Factual narrative On October 29, 2007, approximately 1630 mountain daylight time, a Piper PA-22-150 single-engine tailwheel airplane, N2736P, sustained substantial damage when it impacted terrain following a loss of control due to the failure of the right main landing gear strut during landing at Fremont County Airport (1V6), Canon City, Colorado. The commercial pilot and passenger were not injured. The personal flight was being conducted under the provisions of Title 14 Code of Federal Regulations Part 91 without a flight plan. Visual meteorological conditions prevailed at the time of the accident. The local flight originated from 1V6. According to the pilot, he was practicing touch and go landings. During the sixth landing, he "felt a pop and the airplane begin to settle on its right side." Subsequently, the airplane exited the right side of the runway, contacted terrain, and came to rest on its nose. The pilot reported no anomalies prior to the accident, and he had accumulated 325 flight hours in the accident airplane. The pilot reported the airplane underwent its most recent annual inspection in November 2006. Examination of the airplane revealed the right rear landing gear hinge point attachment had fractured, and the firewall was wrinkled. The reason for the hinge point attachment fracture was not determined. ## Aircraft - Registration: [N2736P](https://openairdocs.org/aircraft/N2736P), registered now, S/N 22-3043, built 1955 (OpenAirDocs) - Reported make and model: Piper PA-22-150 - Registry model: [Piper PA-22-150](https://openairdocs.org/model/piper-pa-22-150) (registry code 7102210) (OpenAirDocs) - Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 22-3043 - Engines: Lycoming O-320-A1A 150 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Thomas Van Acker - Airworthiness certificate: Standard, Normal - Last inspection: Annual, November 1, 2006, 42 hours before - Departed: 1V6, Canon City, CO - Airport: 1V6, Fremont County Airport, runway 11, 5,399 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 43; injuries: none; commercial, flight instructor; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, without waivers/limitations; last flight review June 1, 2007; seat: left; flight hours: 739 total, 325 in this make and model, 739 as pilot in command, 251 in the last 90 days, 66 in the last 30 days, 6 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 170° at 8 knots - Visibility: 10 statute miles - Lowest ceiling: 20,000 ft broken - Temperature: 70 °F, dew point 25 °F - Altimeter: 30.27 inHg - Observed at: FCS, 22 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 20071029824189A](https://openairdocs.org/incident/20071029824189A), Oct 29, 2007: Piper PA22150, Canon City, CO, Substantial damage. (-23) Aircraft had completed 5 touch and gos on a local flight. On sixth landing, pilot felt a "pop" and aircraft began to settle right wing low. Pilot held… 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.