FAA Aircraft Dispatcher (ADX)Regulations (Part 121)Medium
A Part 121 certificate holder is operating a turbine-powered airplane with a maximum approved seating capacity of 100 passenger seats. Under 14 CFR 121.313, what is the minimum number of portable megaphones that must be readily accessible to the crew?
- AThree megaphones.
- BOne megaphone.
- CTwo megaphones.
- DFour megaphones.
Show answer & explanationAnswer & explanation
Correct answer: C. Two megaphones.
14 CFR 121.313(b) specifies that for airplanes with a seating capacity of 60 to 99 passengers, one megaphone is required. For airplanes with 100 or more passengers, two megaphones are required. Since the airplane has 100 seats, two megaphones are the minimum.
Why the other options are wrong
- A. This is incorrect; the regulation specifies two megaphones for 100 seats.
- B. One megaphone is for airplanes with 60 to 99 passenger seats, not 100.
- D. This is incorrect; the regulation specifies two megaphones for 100 seats.
Megaphone Requirement (121.313)
14 CFR 121.313(b) dictates the minimum number of portable megaphones required on Part 121 airplanes based on passenger seating capacity: one for 60-99 seats, and two for 100 or more seats.
- Applies to Part 121 airplanes with 60 or more passenger seats.
- 1 megaphone for 60-99 passenger seats.
- 2 megaphones for 100 or more passenger seats.
- Must be readily accessible to the crew.
Memory trick: Sixty to ninety-nine, one sound; a hundred or more, two voices are found.