Hazards of rotating propeller and helicopter rotor blades.
Series: Advisory circular -- AC 91-42 D.
Publisher: U.S. Dept. of Transportation, Federal Aviation Administration
Published: 1983
Place of publication: Washington, D.C
Language: eng
Subjects: Propellers, Aerial -- Accidents.; Rotors (Helicopters) -- Accidents.; Aeronautics -- United States -- Safety measures.
Notes: Caption title.

Cancels: AC no. 91-42 C, dated May 22, 1981.

"3/3/83."