# NTSB DEN06IA042: Swearingen SA226TC, N235BA, Casper, WY, February 21, 2006 - Type: NTSB incident investigation - Classification: Incident · No injuries · Incident investigation · Final report - Date: February 20, 2006, 18:45 local (Feb 21, 2006, 01:45 UTC) - Place: Casper, WY - Coordinates: 42.904998, -106.457778 - Nearby events: https://openairdocs.org/map.md?lat=42.9050&lon=-106.4578&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 3 uninjured - Status: Completed, report August 29, 2006 - Report: Approved by Office Director - Parties: Federal Aviation Administration - NTSB case key (mKey): 63259 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN06IA042 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/63259/pdf - Page: https://openairdocs.org/ntsb/DEN06IA042 ## Probable cause loss of directional control for undetermined reasons. A factor contributing to the incident was the runway maker light. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Airframe/component/system failure/malfunction, takeoff - roll/run - landing gear,steering system - Loss of control - on ground/water, takeoff - directional control - not possible - abort - performed, pilot in command - On ground/water collision with object, takeoff - aborted - object - runway light (contributing factor) ## Analysis The pilot set engine power to 60 percent rpm for takeoff, released the brakes, and the airplane steered straight ahead. At approximately 800 feet down the runway, the airplane veered to the right. The pilot said he applied full left steering (tiller) and full left rudder, but the airplane continued to veer right. The pilot said he then used full reverse propeller to arrest the forward motion. The airplane went off the right edge of the runway and stopped approximately 1,300 feet from the start of the takeoff roll. A preliminary examination of the airplane showed the nose wheel was turned beyond the right turn limit mark. The left propeller sustained damage to all 4 blade tips. The weather at the time of the incident was clear skies, 10 miles visibility, temperature 18 degrees Fahrenheit (F), dew point 7 degrees F, and altimeter 29.87 inches. Further examination of the nose wheel steering system failed to show why the airplane initiated the uncontrolled turn. All other systems showed no anomalies. ## Factual narrative On February 20, 2006, approximately 1845 mountain standard time, a Swearingen SA226TC, N235BA, piloted by a commercial pilot and operating as Spendair Flight 1713, sustained minor damage when the airplane's left propeller struck a runway marker light, following a loss of directional control during takeoff from the Natrona County International Airport (CPR), Casper, Wyoming. Night visual meteorological conditions prevailed at the time of the incident. The non-scheduled, domestic passenger flight was operating on an instrument flight rules flight plan from CPR to Denver, Colorado, under the provisions of Title 14 CFR Part 121. The pilot and two passengers on board were not injured. The flight was originating at the time of the incident. According to the pilot, he had set engine power to 60 percent rpm for takeoff, released the brakes, and the airplane steered straight ahead. At approximately 800 feet down runway 21 (10,600 feet by 150 feet, dry asphalt), the airplane veered to the right. The pilot said he applied full left steering (tiller) and full left rudder, but the airplane continued to veer right. The pilot said he then used full reverse propeller to arrest the forward motion. The airplane went off the right edge of runway 21 and stopped approximately 1,300 feet from the start of the takeoff roll. A preliminary examination of the airplane showed the nose wheel was turned beyond the right turn limit mark. The left propeller sustained damage to all 4 blade tips. At 1853, the Aviation routine Weather Report at CPR was clear skies, 10 miles visibility, temperature 18 degrees Fahrenheit (F), dew point 7 degrees F, and altimeter 29.87 inches. Further examination of the nose wheel steering system failed to show why the airplane initiated the uncontrolled turn. All other systems showed no anomalies. ## Aircraft - Registration: [N235BA](https://openairdocs.org/deregistered/N235BA-2006-10-10), registration cancelled 2006-10-10, S/N TC235 (OpenAirDocs) - Reported make and model: Swearingen SA226TC - Registry model: [Swearingen SA226TC](https://openairdocs.org/model/swearingen-sa226tc) (registry code 8780404) (OpenAirDocs) - Category: Airplane - Serial number: TC235 - Airframe hours: 29261.5 - Engines: Garrett TPE331 1000 horsepower turbo prop; Garrett TPE331 1000 horsepower turbo prop - Damage: Minor damage - Flight: Part 135 - Registered owner: Superior Aviation, Inc. - Airworthiness certificate: Standard, Normal - Last inspection: Continuous airworthiness, February 1, 2006 - Departed: CPR, Casper, WY - Destination: DEN, Denver, CO - Flight plan: IFR - Airport: CPR, Natrona County International, runway 21, 10,600 × 150 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 56; injuries: none; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, with waivers/limitations; seat: left; flight hours: 5,800 total, 3,700 in this make and model, 5,770 as pilot in command, 120 in the last 90 days, 40 in the last 30 days, 6 in the last 24 hours ## Weather - Conditions: Visual (VMC), Night - Wind: 230° at 19 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 18 °F, dew point 7 °F - Altimeter: 29.87 inHg - Observed at: CPR, 1 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). - [Incident 20060221001699I](https://openairdocs.org/incident/20060221001699I), Feb 21, 2006: Swrngn SA226TC, Casper, WY, Minor damage. (-23) Nose gear tiller steering failed on take-off roll. ## Other investigations on N235BA (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 DEN00FA092](https://openairdocs.org/ntsb/DEN00FA092), May 19, 2000: Swearingen SA226TC (N235BA), Denver, CO, substantial damage. Probable cause: propeller blade fatigue failure due to stress corrosion. 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.