# NTSB DEN01LA164: Cessna 172RG, N9320D, Englewood, CO, September 27, 2001 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: September 27, 2001, 13:30 local (19:30 UTC) - Place: Englewood, CO - Coordinates: 39.578056, -104.849998 - Nearby events: https://openairdocs.org/map.md?lat=39.5781&lon=-104.8500&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 16, 2003 - Report: Approved by Office Director - Parties: Federal Aviation Administration - NTSB case key (mKey): 53524 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN01LA164 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/53524/pdf - Page: https://openairdocs.org/ntsb/DEN01LA164 ## Probable cause the failure of the dual student to verify that the landing gear was down and locked, and the failure of the flight instructor to adequately supervise the dual student. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Wheels up landing, landing - landing gear - not verified, dual student (cause) - supervision - inadequate, pilot in command(cfi) (cause) ## Analysis The flight instructor said that he remembered seeing the red transition light of the landing gear position indicator turn off, but does not remember seeing a green down-and-lock light. Both pilots reported that they did not hear a gear warning horn when the throttle was pulled full aft for the landing. The airplane landed with the landing gear in the up position. Postaccident operation of the landing gear system indicated that the system was functioning normally. ## Factual narrative On September 27, 2001, at 1330 mountain daylight time, a Cessna 172RG, N9320D, was substantially damaged during a gear up landing at Centennial Airport, Englewood, Colorado. The flight instructor and his commercial certificated dual student were not injured. The aircraft was being operated by Key Lime Flights, Englewood, Colorado, under Title 14 CFR Part 91. Visual meteorological conditions prevailed for the local instructional flight which originated approximately 40 minutes before the accident. The flight instructor said that he remembered seeing the red transition light of the landing gear position indicator turn off, but does not remember seeing a green down-and-lock light. Both pilots reported that they did not hear a gear warning horn when the throttle was pulled full aft for the landing. The airplane landed with the landing gear in the "up" position. The horizontal stabilizer was bent up when it struck a sign. Postaccident operation of the landing gear system indicated that the system was functioning normally. ## Aircraft - Registration: [N9320D](https://openairdocs.org/aircraft/N9320D), registered now, S/N 172RG1119, built 1982 (OpenAirDocs) - Reported make and model: Cessna 172RG - Registry model: [Cessna 172RG](https://openairdocs.org/model/cessna-172rg) (registry code 2072438) (OpenAirDocs) - Registry engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) (OpenAirDocs) - Category: Airplane - Serial number: 172RG1119 - Airframe hours: 7576 - Engines: Lycoming O-360-F1A6 180 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: Key Lime Air, doing business as Key Lime Flights - Registered owner: EDB Air Inc. - Airworthiness certificate: Standard, Normal - Last inspection: 100 hour, August 2, 2001, 62 hours before - Departed: APA, Englewood, CO - Airport: APA, Centennial Airport, runway 35L, 7,004 × 77 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 73; injuries: none; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; last flight review April 27, 2001; seat: left; flight hours: 5,086 total, 17 in this make and model, 4,727 as pilot in command, 47 in the last 90 days, 13 in the last 30 days, 4 in the last 24 hours - Student pilot; age 34; injuries: none; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; last flight review May 10, 2001; seat: right; flight hours: 303 total, 5 in this make and model, 249 as pilot in command, 32 in the last 90 days, 2 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 300° at 6 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 84 °F, dew point 28 °F - Altimeter: 30.15 inHg - Observed at: APA ## 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 20010927028939A](https://openairdocs.org/incident/20010927028939A), Sep 27, 2001: Cessna 172RG, Denver, CO, No damage. (-23) On 09/27/01 flight instructor dorsie meads and CFI student john wilcox were practicing touch and go landings at Centennial Airport, englewood, CO. Mr.… ## Other investigations on N9320D (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 DEN92IA014](https://openairdocs.org/ntsb/DEN92IA014), Dec 5, 1991: Cessna 172RG (N9320D), Broomfield, CO, incident, minor damage. Probable cause: FAILURE OF THE LEFT MAIN LANDING GEAR PIVOT ASSEMBLY DUE TO DUCTILE TORSIONAL OVERSTRESS. 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.