# NTSB DFW08CA070: Cessna 172S, N766PD, Jenks, OK, February 3, 2008 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: February 3, 2008, 15:30 local (21:30 UTC) - Place: Jenks, OK - Coordinates: 36.039443, -95.984443 - Nearby events: https://openairdocs.org/map.md?lat=36.0394&lon=-95.9844&mi=10 - Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping) - Defining event: [Taxi: Ground collision](https://openairdocs.org/ntsb-events/200) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report March 31, 2008 - Report: Approved by Office Director - Parties: Oklahoma City, Oklahoma - NTSB case key (mKey): 67505 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DFW08CA070 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/67505/pdf - Page: https://openairdocs.org/ntsb/DFW08CA070 ## Probable cause The owner of the parking surface's failure to ensure that the parking surface was clear of hazards to taxiing airplanes and the pilot's failure to ensure a safe taxi route in unfamiliar surroundings. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Object/animal/substance: hidden/submerged object](https://openairdocs.org/ntsb-findings/03022052): Environmental issues › Physical environment · Contributed to outcome (probable cause); cases with it: [Cessna 172S, 1 case](https://openairdocs.org/ntsb-findings/03022052/cases.md?model=2072439), [All aircraft, 36 cases](https://openairdocs.org/ntsb-findings/03022052/cases.md) - [Airport facilities/design: ramp facilities](https://openairdocs.org/ntsb-findings/03017055): Environmental issues › Operating environment · Effect on operation (probable cause); cases with it: [Cessna 172S, 1 case](https://openairdocs.org/ntsb-findings/03017055/cases.md?model=2072439), [All aircraft, 4 cases](https://openairdocs.org/ntsb-findings/03017055/cases.md) - [Attention/monitoring: monitoring environment](https://openairdocs.org/ntsb-findings/02021545): Personnel issues › Psychological · Pilot (probable cause); cases with it: [Cessna 172S, 11 cases](https://openairdocs.org/ntsb-findings/02021545/cases.md?model=2072439), [All aircraft, 809 cases](https://openairdocs.org/ntsb-findings/02021545/cases.md) - [Inspection](https://openairdocs.org/ntsb-findings/02061500): Personnel issues › Task performance · Airport personnel (probable cause); cases with it: [Cessna 172S, 1 case](https://openairdocs.org/ntsb-findings/02061500/cases.md?model=2072439), [All aircraft, 29 cases](https://openairdocs.org/ntsb-findings/02061500/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Taxi: Ground collision](https://openairdocs.org/ntsb-events/200) (defining event); cases with it: [Cessna 172S, 23 cases](https://openairdocs.org/ntsb-events/200/sequence.md?model=2072439), [All aircraft, 618 cases](https://openairdocs.org/ntsb-events/200/sequence.md) ## Analysis While taxiing the airplane to park, the pilot selected an open spot located on the side of the parking apron. The pilot noticed a drainage ditch covered with a metal grate but did not perceive that only a portion of the ditch was covered by the grate. As the pilot maneuvered the airplane to park, the nose wheel entered the uncovered ditch and the propeller contacted the ground. The pilot shut down the airplane and exited normally. Damage was sustained to the airplane's firewall. The pilot was not injured. No markings were present to make the pilot aware of the hazard. ## Factual narrative While taxiing the airplane to park, the pilot selected an open spot located on the side of the parking apron. The pilot noticed a drainage ditch covered with a metal grate but did not perceive that only a portion of the ditch was covered by the grate. As the pilot maneuvered the airplane to park, the nose wheel entered the uncovered ditch and the propeller contacted the ground. The pilot shut down the airplane and exited normally. Damage was sustained to the airplane's firewall. The pilot was not injured. No markings were present to make the pilot aware of the hazard. ## Aircraft - Registration: [N766PD](https://openairdocs.org/aircraft/N766PD), registered now, S/N 172S8419, built 2000 (OpenAirDocs) - Reported make and model: Cessna 172S - Registry model: [Cessna 172S](https://openairdocs.org/model/cessna-172s) (registry code 2072439) (OpenAirDocs) - Registry engine: [Lycoming I0360 SER A&C](https://openairdocs.org/engine/lycoming-i0360-ser-a-c) (registry code 41511, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 172S8419 - Airframe hours: 1515 - Engines: Lycoming IO-360-L2A 180 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Christiansen Aviation Inc - Registered owner: NUTAC Leasing, LLC - Airworthiness certificate: Standard, Normal - Last inspection: Annual, January 1, 2008, 18 hours before - Departed: OKM, OKMULGEE, OK - Destination: RVS, TULSA, OK - Airport: RVS, Richard Lloyd Jones Jr ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 28; injuries: none; private; airplane ratings: single-engine land; medical: class 3, without waivers/limitations; last flight review April 1, 2007; seat: left; flight hours: 99 total, 87 in this make and model, 67 as pilot in command, 9 in the last 90 days, 2 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 250° at 8 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 73 °F, dew point 39 °F - Altimeter: 29.71 inHg - Observed at: RVS 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.