FAA Aircraft Dispatcher (ADX)Regulations (Part 121)Medium
A Part 121 certificate holder is configuring a new airplane type with 150 passenger seats for domestic operations. Under 14 CFR 121.318, what is the minimum number of passenger emergency exits that must be equipped with an operating public address (PA) system loudspeaker?
- AAll passenger emergency exits.
- BAt least one-half of all passenger emergency exits.
- CA minimum of three passenger emergency exits.
- DAt least one-third of all passenger emergency exits.
Show answer & explanationAnswer & explanation
Correct answer: A. All passenger emergency exits.
14 CFR 121.318(b) states that each passenger emergency exit must be provided with an operating loudspeaker at such a location that the in-flight announcements would be clearly audible at the exit.
Why the other options are wrong
- B. This is incorrect; the regulation specifies all exits, not a fraction.
- C. This is incorrect; the requirement is for all exits, not a fixed number.
- D. This is incorrect; the regulation specifies all exits, not a fraction.
PA System at Emergency Exits (121.318)
14 CFR 121.318(b) mandates that each passenger emergency exit on a Part 121 aircraft must have an operating public address system loudspeaker to ensure announcements are clearly audible at the exit.
- Applies to all Part 121 aircraft.
- Loudspeaker required at EVERY passenger emergency exit.
- Ensures clear audibility of announcements for safety.
Memory trick: Every exit needs a voice, for safety, make that choice.