# NTSB CHI08CA015: Cessna 150H, N22899, Clarksville, AR, October 5, 2007 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Data collection · Final report - Date: October 5, 2007, 11:30 local (16:30 UTC) - Place: Clarksville, AR - Coordinates: 35.470554, -93.42694 - Nearby events: https://openairdocs.org/map.md?lat=35.4706&lon=-93.4269&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Highest injury: Minor injuries - Injuries: 1 minor, 1 uninjured - Status: Completed, report January 31, 2008 - Report: Approved by Office Director - Parties: FAA-Little Rock FSDO - NTSB case key (mKey): 67087 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI08CA015 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/67087/pdf - Page: https://openairdocs.org/ntsb/CHI08CA015 ## Probable cause Failure of the flight instructor to identify the lack of airplane performance in a timely manner and to reject the takeoff. An additional cause was the partial loss of engine power for undetermined reasons. A contributing factor was the presence of the power lines off the end of the runway. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power(partial) - mech failure/malf, takeoff - reason for occurrence undetermined (cause) - In flight collision with object, takeoff - remedial action - delayed, pilot in command(cfi) (cause) - aborted takeoff - not performed, pilot in command(cfi) (cause) - object - wire,transmission (contributing factor) - In flight collision with terrain/water, takeoff - terrain condition - ground ## Analysis The airplane impacted power lines and terrain after takeoff from runway 9 (4,508 feet by 75 feet, asphalt). The accident takeoff began from a taxiway intersection, with approximately 4,000 feet of runway available. The dual student was slow in applying the throttle and an additional 200 - 500 feet of runway was used before full throttle was reached. After liftoff, the flight instructor noted that the airplane was not climbing as expected. He subsequently noticed that the engine tachometer indicated only 2,000 revolutions per minute (RPM), instead of the normal 2,500 RPM. The flight instructor reported that at that point there was no longer sufficient runway remaining to land, so he elected to continue the flight. He stated that the main landing gear struck power lines off the end of the runway, and the airplane subsequently impacted a field on the opposite side of the lines. The nose landing gear collapsed and the airplane came to rest. Published performance data for the accident airplane indicated that the takeoff ground roll required was approximately 850 feet. The distance required to takeoff and clear a 50-foot obstacle was about 1,585 feet. The distance required to land over a 50-foot obstacle was approximately 1,090 feet. ## Factual narrative The airplane was substantially damaged during an instructional flight when it impacted power lines and terrain after takeoff from runway 9 (4,508 feet by 75 feet, asphalt). The flight instructor reported that the accident takeoff began from a taxiway intersection, with approximately 4,000 feet of runway available. He stated that the dual student was slow in applying the throttle and estimated that an additional 200 - 500 feet of runway was used before full throttle was reached. After liftoff, he noted that the airplane was not climbing as expected. He stated that the engine tachometer indicated only 2,000 revolutions per minute (RPM), instead of the normal 2,500 RPM. The flight instructor reported that at that point there was no longer sufficient runway remaining to land, so he elected to continue the flight. He stated that the main landing gear struck power lines off the end of the runway, and the airplane subsequently impacted a field on the opposite side of the lines. The nose landing gear collapsed and the airplane came to rest. Published performance data for the accident airplane indicated that the takeoff ground roll required was approximately 850 feet. The distance required to takeoff and clear a 50-foot obstacle was about 1,585 feet. The distance required to land over a 50-foot obstacle was approximately 1,090 feet. The elevation of the departure airport was 481 feet. ## Aircraft - Registration: [N22899](https://openairdocs.org/deregistered/N22899-2017-05-31), registration cancelled 2017-05-31, S/N 15068600, built 1968 (OpenAirDocs) - Reported make and model: Cessna 150H - Registry model: [Cessna 150H](https://openairdocs.org/model/cessna-150h) (registry code 2071818) (OpenAirDocs) - Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 15068600 - Airframe hours: 4210.3 - Engines: Teledyne Continental O-200 100 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Airworthiness certificate: Standard, Normal - Last inspection: Annual, December 1, 2006 - Departed: H35, Clarksville, AR - Destination: H35, Clarksville, AR - Airport: H35, Clarksville Municipal, runway 9, 4,508 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Flight instructor; age 57; injuries: none; commercial, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, with waivers/limitations; last flight review August 1, 2007; seat: right; flight hours: 10,964 total, 1,374 in this make and model, 87 in the last 90 days, 33 in the last 30 days, 2 in the last 24 hours - Student pilot; age 69; injuries: minor; seat: left ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 84 °F, dew point 73 °F - Altimeter: 30.05 inHg - Observed at: RUE, 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 20071005022989A](https://openairdocs.org/incident/20071005022989A), Oct 5, 2007: Cessna 150H, Clarksville, AR, Substantial damage. (-23) On October 5, 2007, at 11:15 CDT, a CE-150H, N22899, collided with a power line while executing a takeoff from Clarksville Municipal Airport (H35),… 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.