# NTSB CEN09TA399: Cessna 182, N60HP, Cookson, OK, June 20, 2009 - Type: NTSB accident investigation - Classification: Accident · No injuries · Final report - Date: June 20, 2009, 10:30 local (15:30 UTC) - Place: Cookson, OK - Coordinates: 35.703056, -94.934722 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=35.7031&lon=-94.9347&mi=10 - Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping) - Defining event: [Taxi-from runway: Ground collision](https://openairdocs.org/ntsb-events/200) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report January 7, 2011 - Report: Approved by Office Director - NTSB office: Central Region - Parties: FAA Oklahoma City FSDO - NTSB case key (mKey): 74170 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN09TA399 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/74170/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=74170 - Page: https://openairdocs.org/ntsb/CEN09TA399 ## Probable cause The pilot's failure to maintain clearance with the building while taxiing on a road. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Action: incorrect action performance](https://openairdocs.org/ntsb-findings/02041015): Personnel issues › Action/decision · Pilot (probable cause); cases with it: [All aircraft, 1,386 cases](https://openairdocs.org/ntsb-findings/02041015/cases.md) - [Attention/monitoring: monitoring environment](https://openairdocs.org/ntsb-findings/02021545): Personnel issues › Psychological · Pilot (probable cause); cases with it: [All aircraft, 809 cases](https://openairdocs.org/ntsb-findings/02021545/cases.md) - [Object/animal/substance: residence/building](https://openairdocs.org/ntsb-findings/03022022): Environmental issues › Physical environment · Response/compensation; cases with it: [All aircraft, 58 cases](https://openairdocs.org/ntsb-findings/03022022/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Taxi-from runway: Wrong surface or wrong airport](https://openairdocs.org/ntsb-events/284); cases with it: [All aircraft, 56 cases](https://openairdocs.org/ntsb-events/284/sequence.md) - [Taxi-from runway: Ground collision](https://openairdocs.org/ntsb-events/200) (defining event); cases with it: [All aircraft, 618 cases](https://openairdocs.org/ntsb-events/200/sequence.md) ## Analysis The pilot reported that after back-taxiing on the grass airstrip, he taxied onto an asphalt road between the airstrip and the hangar area on the northeast side of the airport. As he taxied on the road, he felt a "jolt." After stopping and exiting the airplane, he noted that the left wing had contacted the T-hangar. The pilot reported that he was informed by the airport manager that other aircraft had contacted the hangar in the same location. There are no paved taxiways on the airport and the building that was contacted is painted orange. ## Factual narrative On June 20, 2009, about 1030 central daylight time, a Cessna 182R, N60HP, struck a hangar with the left wingtip while taxiing after landing at the Tenkiller Lake Airpark (44M), Cookson, Oklahoma. The airplane was being operated by the Oklahoma Department of Public Safety, Bethany, Oklahoma, as a visual flight rules public use flight, under the provisions of 14 Code of Federal Regulations Part 91. The airplane was substantially damaged. The pilot, who was the only person on board, was not injured. Visual meteorological conditions prevailed and no flight plan had been filed. The flight had originated at the Wiley Post Airport (PWA), Bethany, Oklahoma, at 0930. The pilot reported that after back taxiing on the grass airstrip, he taxied onto an asphalt road between the airstrip and the hangar area on the northeast side of the airport. As he taxied on the road, he felt a "jolt." After stopping and exiting the airplane, he noted that the left wing had contacted the T-hangar. The pilot reported that he was informed by the airport manager that other aircraft had contacted the hangar in the same location. A member of the airport commission stated that there are no paved taxiways at the airport and the surface the pilot was taxiing on is a road, which should not be used as a taxiway. In addition, the building that the airplane contacted is painted orange. ## Aircraft - Registration: N60HP (not matched to a registry record) - Reported make and model: CESSNA 182 (R) - Category: Airplane - Serial number: 18268454 - Airframe hours: 8550 - Engines: CONTINENTAL O-470 235 horsepower reciprocating - Damage: Substantial damage - Flight: Public aircraft - state, Public use - Operator: Oklahoma Department Of Public Safety - Registered owner: Oklahoma Department Of Public Safety - Airworthiness certificate: Standard, Normal - Last inspection: Annual, August 1, 2008 - Departed: PWA, Bethany, OK - Destination: 44M, Cookson, OK - Airport: 44M, Tenkiller Lake Airpark, runway 23, 2,600 × 75 ft, grass/turf ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 39; injuries: none; private; airplane ratings: single-engine land; medical: class 2, without waivers/limitations; last flight review May 31, 2009; seat: left; flight hours: 1,100 total, 1,000 in this make and model, 1,000 as pilot in command ## Weather - Conditions: Visual (VMC), Day - Wind: 190° at 13 knots, gusting 19 - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 84 °F, dew point 70 °F - Altimeter: 29.93 inHg - Observed at: KMKO, 20 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 20090620009909A](https://openairdocs.org/incident/20090620009909A), Jun 20, 2009: Cessna 182R, Cookson, OK, Substantial damage. (-23) Pilot ws taxiing to pick up another pilot for another flight when the aircraft's left wing struck a hangar. ## Docket (4 files) The files NTSB released with the investigation on October 1, 2010, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=74170. 1.6 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 326 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40335923&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF - Supplemental Statement From Pilot - Including a Sketch That Shows the Route of Taxi and Location of Impact (item 2, .PDF, 189 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40335924&FileExtension=.PDF&FileName=Supplemental%20Statement%20From%20Pilot%20%20-%20Including%20a%20Sketch%20That%20Shows%20the%20Route%20of%20Taxi%20and%20Location%20of%20Impact-Redacted.PDF - Photo 1 - Closeup View of the Top of the Left Wing Showing Wrinkled Aft Wing Spar (FAA Photo) (item 3, .PDF, 437 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40335925&FileExtension=.PDF&FileName=Photo%201%20-%20Closeup%20View%20of%20the%20Top%20of%20the%20Left%20Wing%20Showing%20Wrinkled%20Aft%20Wing%20Spar%20(FAA%20Photo)-Master.PDF - Photo 2 - Closeup View of the Left Forward Fuselage Showing Damage to the Attach Point (FAA Photo) (item 4, .PDF, 691 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40335926&FileExtension=.PDF&FileName=Photo%202%20-%20Closeup%20View%20of%20the%20Left%20Forward%20Fuselage%20Showing%20Damage%20to%20the%20Attach%20Point%20%20(FAA%20Photo)-Master.PDF 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.