Tuesday, May 3, 2016

Atkinson EAGLET, N5AQ: Accident occurred April 13, 2016 in DeLand, Volusia County, Florida

The National Transportation Safety Board did not travel to the scene of this accident.

Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Orlando, Florida 

Aviation Accident Final Report - National Transportation Safety Board: https://app.ntsb.gov/pdf

Investigation Docket  - National Transportation Safety Board: https://dms.ntsb.gov/pubdms

http://registry.faa.gov/N5AQ


NTSB Identification: ERA16LA156
14 CFR Part 91: General Aviation
Accident occurred Wednesday, April 13, 2016 in Deland, FL
Probable Cause Approval Date: 05/01/2017
Aircraft: ATKINSON EAGLET, registration: N5AQ
Injuries: 1 Minor.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

The sport pilot of the experimental, amateur-built motorglider reported that, after takeoff, the primary engine experienced a total loss of power about 75 ft above ground level, and the secondary engine was unable to maintain the motorglider’s altitude. The pilot tried to make a 180° turn back to the airport, but the motorglider lost altitude and struck the top of pine trees. The primary engine was a 17-hp reciprocating engine designed for use in model aircraft, and the secondary engine was an electric motor. Both engines were necessary to produce enough power for takeoff. The pilot stated that, after takeoff, the motorglider encountered turbulence, which likely resulted in the separation of the primary engine’s ignition plug. 

The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
A total loss of engine power during initial climb due to a separation of the ignition plug.

On April 13, 2016, about 1230 eastern daylight time, an experimental amateur-built Eaglet motorglider, N5AQ, was substantially damaged when it impact trees shortly after takeoff from Bob Lee Flight Strip (1J6), Deland, Florida. The sport pilot incurred minor injuries. Visual meteorological conditions prevailed, and no flight plan was filed for the local personal flight, which was operated under the provisions of Title 14 Code of Federal Regulations Part 91. The flight was originating at the time of the accident.

The pilot report that after takeoff, the main reciprocating pusher engine failed about 75 feet above ground level and the secondary electric motor was unable to maintain the motorglider's altitude. The pilot tried to make a 180-degree turn back to the airport, but the motorglider lost altitude and contacted the top of pine trees. The tail of the motorglider caught the top of a tree, preventing it from colliding with the ground. The motorglider was approximately 1 foot off the ground when the pilot unlatched his seatbelt and jumped to the ground.

The pilot also reported that he had installed a DLE-170 cubic centimeter, 17 horse power engine and ignition system on the motorglider. He believed that during takeoff, he encountered moderate turbulence and the engine ignition system disconnected. He stated he believed that the certified motorglider was an ultralight and he did not need approval to modify it or keep paperwork, logbooks, and flight logs. The installed engine was designed for model airplanes.

The pilot reported that he held a sport pilot certificate and had accrued 130 total hours flight experience, with 40 hours in the same make and model as the motorglider.

Examination of the motorglider by an NTSB investigator revealed that the wing leading edges were cracked from tree limb contact. The left elevator was fractured off the hinges and the right elevator leading edge was crushed by contact with tree limbs. The canopy was broken in several pieces. The pilot had removed and transported the engine and ignition system prior to the examination, and they were not available for examination.

NTSB Identification: ERA16LA156
14 CFR Part 91: General Aviation
Accident occurred Wednesday, April 13, 2016 in Deland, FL
Aircraft: ATKINSON EAGLET, registration: N5AQ
Injuries: 1 Minor.

This is preliminary information, subject to change, and may contain errors. Any errors in this report will be corrected when the final report has been completed. NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

On April 13, 2016, about 1230 eastern daylight time, an Atkinson Eaglet motorglider, N5AQ, operated by a private individual, was substantially damaged when it impact trees shortly after takeoff from runway 9 at Bob Lee Flight Strip (1J6) Deland, Florida. The sport pilot had minor injuries. Visual meteorological conditions prevailed, and no flight plan was filed for the personal flight, which was operated under the provisions of Title 14 Code of Federal Regulations Part 91. The flight was originating at the time of the accident.

The pilot report that after takeoff, the main reciprocating pusher engine failed and the secondary electric motor was unable to maintain the aircraft's altitude. The pilot tried to make a 180-degree turn back to the airport but the aircraft lost altitude and hit the top of pine trees. The tail of the airplane caught the top of a tree preventing the airplane from colliding with the ground. The airplane was approximately 1 foot off the ground when the pilot unlatched his seatbelt and jumped to the ground. 

The wreckage has been retained for further examination.

No comments: