The process for handling ADS-B inoperative is the same as handling transponder inoperative.

• A. True
• B. False
• C. Not defined
• D. Depends on airspace

Answer: (A)

The key idea is that both ADS-B Out and the transponder are part of the aircraft’s surveillance system used by ATC to identify and track you. When either piece of equipment is inoperative, you follow the same general procedure: promptly inform ATC of the inoperative equipment, enter and document the maintenance item (per the applicable MEL or maintenance procedure), and operate under restrictions appropriate for equipment that cannot be relied upon for radar surveillance. In practice, that means you won’t rely on surveillance-reliant airspace until the fault is repaired, and you’ll coordinate with ATC for any required changes in flight plan or airspace. Because the regulatory and safety-handling approach is the same for an inoperative surveillance device, the statement is considered correct.