Term
Public address (PA) system
Regulatory references
CASR 91.540 Means of passenger communication
CASR Part 91 Manual of Standards 26.42 - Public-address system
CASR Part 121 Manual of Standards 11.36 - Flight crew intercommunication system
CASR Part 121 Manual of Standards 11.37 - Crew interphone system
CASR Part 121 Manual of Standards 11.38 - Public-address system
CASR Part 133 Manual of Standards 11.32 - Public address system
CASR Part 135 Manual of Standards Division 8—Aeroplane interior communication systems