NTSB Identification: CEN12LA125
14 CFR Part 91: General Aviation
Accident occurred Saturday, December 03, 2011 in McKinney, TX
Probable Cause Approval Date: 05/30/2013
Aircraft: AVIAT AIRCRAFT INC A-1C-180, registration: N62WY
Injuries: 1 Serious.
NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
After returning from a short night flight, the airplane was parked on a ramp in front of a hangar to deplane the passenger and take another person on a flight. The engine was at idle power and the propeller was turning. The pilot stated that he leaned across the airplane and opened the right door so the passenger could exit. When he saw that she was exiting toward the front of the airplane, he put his arm out and told her to walk toward the rear after exiting. Once the pilot saw that the passenger was clear of the wing strut and walking away, he lowered his arm. A witness who was walking from the hangar toward the airplane saw that the passenger was walking toward the front of the aircraft. He yelled for her to stop, and a second later she hit the propeller from the rear and fell to the ground. He noticed that the pilot immediately shut the engine down and then called emergency services. FAA Advisory Circular (AC) 91-42D, "Hazards of Rotating Propeller and Helicopter Rotor Blade,” states that a propeller under power, even at slow idling speed, has sufficient force to inflict injuries. It cautions that the engine “should be shut down before boarding or deplaning passengers.” It further states that “when it is necessary to discharge a passenger from an aircraft on which an engine is running, never stop the aircraft with the propeller in the path of the passenger’s route from the aircraft.”
The National Transportation Safety Board determines the probable cause(s) of this accident to be: The passenger's inadvertent contact with a rotating propeller after exiting the parked airplane. Contributing to the accident were the dark night conditions and the deplaning of the passenger while the propeller was turning. Full narrative available
Index for Dec2011 | Index of months