Friday, May 5, 2017

AutoGyro Calidus, N991TC, 991TC LLC: Accident occurred May 04, 2017 at Bay Bridge Airport (W29), Stevensville , Queen Anne's County, Maryland

Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Baltimore, Maryland

Aviation Accident Final Report - National Transportation Safety Board: 

Investigation Docket - National Transportation Safety Board:

Aviation Accident Data Summary - National Transportation Safety Board: 

991TC LLC:

NTSB Identification: GAA17CA258
14 CFR Part 91: General Aviation
Accident occurred Thursday, May 04, 2017 in Stevensville, MD
Probable Cause Approval Date: 07/20/2017
Aircraft: Autogyro Calidus, registration: N991TC
Injuries: 1 Minor.

NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.

The pilot of the gyrocopter reported that, during the takeoff roll, the rotor rpm was not increasing. He continued the takeoff and kept the gyrocopter on the ground to gain airspeed by not moving the stick to the full-aft position. He added that this was an “old existing airplane habit.” Subsequently, during the takeoff, the gyrocopter developed a “rotor flap,” and he lost directional control. The gyrocopter came to rest on its side to the left of the runway. 

The pilot added that not having the stick full aft prevented the rotor rpm from increasing and that the appropriate corrective action would have been to apply full-aft stick.

The gyrocopter sustained substantial damage to the fuselage and rotors.

The pilot reported that there were no preaccident mechanical failures or malfunctions with the gyrocopter that would have precluded normal operation.
The gyrocopter’s Flight Manual stated that, during the takeoff roll, the pilot must “bring the control stick fully aft.”

The National Transportation Safety Board determines the probable cause(s) of this accident as follows:

The pilot’s improper takeoff procedure, which resulted in a loss of directional control during the takeoff. 

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