Which code matches Aircraft Incident?

• A. 81
• B. 82
• C. 84
• D. 85

Answer: (C)

Codes on the APD radio are shorthand labels for different kinds of incidents, with each category assigned a specific numeric code. Aircraft Incident is one of these categories and has its own dedicated code in that system. When you hear or see the code for Aircraft Incident, it signals that the situation involves aviation-related activity and requires coordinating with aviation resources, airport operations, or specialized units.

So, the correct choice is the one that matches the Aircraft Incident category in the code chart. The other numbers correspond to different incident types, so they wouldn’t indicate an aircraft-related event.