# NTSB DEN00LA172: Boeing Stearman D75N1, N64796, Englewood, CO, September 20, 2000 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: September 20, 2000, 14:00 local (20:00 UTC) - Place: Englewood, CO - Coordinates: 39.579109, -104.859123 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=39.5791&lon=-104.8591&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report November 1, 2001 - Report: Approved by Office Director - NTSB case key (mKey): 50269 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN00LA172 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/50269/pdf - Page: https://openairdocs.org/ntsb/DEN00LA172 ## Probable cause the flight instructor not maintaining supervision. Contributing factors were the student's hard landing due to excessive flare and subsequent inadvertent stall, and the student's failure to maintain directional control during landing roll. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Hard landing, landing - flare/touchdown - flare - misjudged, dual student (contributing factor) - stall - inadvertent, dual student (contributing factor) - Loss of control - on ground/water, landing - roll - directional control - not maintained, dual student (contributing factor) - ground loop/swerve - inadvertent, dual student - supervision - not maintained, pilot in command(cfi) (cause) - On ground/water encounter with terrain/water, landing - roll - terrain condition - open field ## Analysis According to the flight instructor, the commercial pilot receiving instruction was conducting a touch and go landing, and he flared the airplane too high. The aircraft stalled and dropped to the runway. The student lost directional control of the aircraft and it subsequently ground looped. The aircraft exited the left of the runway and the right wingtip contacted the ground, damaging the right lower aft wing spar. ## Factual narrative On September 20, 2000, at approximately 1400 mountain daylight time, a Boeing D75N1 (Stearman), N64796, was substantially damaged during landing at Centennial Airport, Englewood, Colorado. The flight instructor and the commercial pilot receiving instruction were not injured. A private individual was operating the airplane under Title 14 CFR Part 91. Visual meteorological conditions prevailed for the local instructional flight that originated approximately 30 minutes before the accident. The flight instructor had not filed a flight plan. According to the flight instructor, the commercial pilot receiving instruction was conducting a touch and go landing, and he flared the airplane too high. The aircraft stalled and dropped to the runway. The student lost directional control of the aircraft and it subsequently ground looped. The aircraft exited the left side of the runway and the right wingtip contacted the ground, damaging the right lower aft wing spar. ## Aircraft - Registration: [N64796](https://openairdocs.org/aircraft/N64796), registered now, S/N 75-1602 (OpenAirDocs) - Reported make and model: Boeing Stearman D75N1 - Registry model: [Boeing D75N1](https://openairdocs.org/model/boeing-d75n1) (registry code 1380148) (OpenAirDocs) - Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 75-1602 - Airframe hours: 6986 - Engines: P&W R-985 450 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Registered owner: Emb Properties, Inc. - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Annual, May 26, 2000, 12 hours before - Airport: APA, Centennial, runway 17R, 7,004 × 77 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 50; foreign, airline transport, commercial, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: front; flight hours: 17,500 total, 150 in this make and model, 16,000 as pilot in command, 86 in the last 90 days, 37 in the last 30 days, 5 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 50 statute miles - Lowest ceiling: 4,000 ft broken - Temperature: 140 °F ## 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 20000920015789A](https://openairdocs.org/incident/20000920015789A), Sep 20, 2000: Boeing D75N1, Denver, CO, No damage. (-23)On September 20, 2000, at approx. 1430 MDT, a Boeing N-75-D75N1, stearman N64796, was substantially damaged while landing at Centennial Airport,… ## Other investigations on N64796 (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 DEN02LA091](https://openairdocs.org/ntsb/DEN02LA091), Aug 13, 2002: Boeing D75N1 (N64796), Watkins, CO, substantial damage. Probable cause: the pilot's improper recovery from a bounced landing, resulting in an inadvertent ground loop. A contributing factor was the flight instructor's inadequate supervision of the pilot. 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.