# NTSB FTW04LA046: Bell 206B, N62HF, Henryetta, OK, December 20, 2003 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: December 20, 2003, 11:00 local (17:00 UTC) - Place: Henryetta, OK - Coordinates: 35.440692, -95.979278 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=35.4407&lon=-95.9793&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 3 uninjured - Status: Completed, report June 2, 2004 - Report: Approved by Office Director - Parties: FAA/FSDO - NTSB case key (mKey): 58612 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW04LA046 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/58612/pdf - Page: https://openairdocs.org/ntsb/FTW04LA046 ## Probable cause The pilot's inadequate visual look out and failure to maintain clearance from guy wire while maneuvering for landing. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - In flight collision with object, approach - object - wire,static - visual lookout - inadequate, pilot in command (cause) - clearance - not maintained, pilot in command (cause) ## Analysis The private pilot was attempting to land in a field near a local automobile dealership when his tail boom became entangled in a guy wire. The pilot reported making two close, left-hand patterns around the area to select the best landing site. After a site was determined to be safe, he made an additional short downwind, base and final steep approach into the wind. The pilot further reported that he was aware of the power lines, but did not see the light-gray colored wire that ran between them. After making several attempts to maintain a level attitude, the pilot gently lowered the nose of the helicopter onto the ground and rested it on the front of the skids, with the tail still snagged in the wire. ## Factual narrative On December 20, 2003, at 1100 central standard time, a Bell 206B helicopter, N62HF, was substantially damaged when the tail boom struck a guy-wire while on short approach to a field in Henryetta, Oklahoma. The private pilot and the two passengers were not injured. The helicopter was registered to and operated by Cayman Helicopters, LLC. Visual meteorological conditions prevailed and no flight plan was filed for the personal flight that originated at the Arlington Municipal Airport (GKY), Arlington, Texas, about 0930, and conducted under 14 Code of Federal Regulations Part 91. In a written statement, the pilot stated that he was attempting to land in a field adjacent to an automobile dealership. He made two close, left-hand patterns around the area to select the best landing site. After a site was determined to be safe, the pilot made an additional short, downwind base and final steep approach into the wind. The approach was made over the power lines and between two poles, which supported the wires. The pilot reported that he was aware of the power lines, but did not see the light-gray colored wire that ran between them. The pilot made a slow approach to the site, but the lower vertical stabilizer caught the wire, cut into it about 10-inches, and destroyed both tail rotor blades. He said the tail boom became firmly attached to the wire, which enabled the helicopter to go into a dynamic "spin" or a level descent for landing. After making several attempts to maintain a level attitude, the pilot gently lowered the nose of the helicopter onto the ground and rested it on the front of the skids, with the tail still snagged in the wire. The right skid fractured. The pilot made a normal engine shut down of the engine and each occupant exited the helicopter. A Federal Aviation Administration (FAA) Inspector, who travelled to the accident site, performed an examination of the helicopter. According to the inspector, the helicopter struck the wire on the aft portion of the tail, just forward of the lower vertical stabilizer, and cut into it about 10-inches. Both tail rotor blades were damaged, and there was a hole in one of the main rotor blades, about 14-inches from the butt of the blade. The pilot reported a total of 563 flight hours, of which 347 hours were in make and model. Weather reported at Okmulgee Regional Airport (OKM), Okmulgee, Oklahoma, at 1053, was reported as wind from 190 degrees at 9 knots, visibility 10 statute miles, and clear skies. ## Aircraft - Registration: N62HF (not matched to a registry record) - Reported make and model: BELL 206B - Category: Helicopter - Serial number: 1792 - Airframe hours: 7377 - Engines: Allison 250-C20B 420 horsepower turbo shaft - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Cayman Helicopters LLC - Airworthiness certificate: Standard, Normal - Last inspection: Annual, June 24, 2003, 88 hours before - Departed: GKY, ARLINGTON, TX - Destination: NONE, HENRYETTA, OK - Airport: None ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 53; injuries: none; private; medical: class 2, valid medical--no waivers/lim.; last flight review October 27, 2002; seat: right; flight hours: 563 total, 347 in this make and model, 500 as pilot in command, 24 in the last 90 days, 9 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 190° at 9 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 54 °F, dew point 37 °F - Altimeter: 30.27 inHg - Observed at: OKM, 15 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 20031220031229A](https://openairdocs.org/incident/20031220031229A), Dec 20, 2003: Bell 206B, Henryetta, OK, Substantial damage. (-23) On December 20, 2003 at about 10:59 am central time a Bell 206-B N62HF, struck a guide wire between two power poles, with the aft end of the tail boom,… 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.