5-2-22

Inoperative or Malfunctioning Ads-B Transmitter

JO 7110.65BB, Change 3, effective July 9, 2026 · Official text on faa.gov

When an aircraft's ADS-B transmitter appears to be inoperative or malfunctioning, notify the OS/CIC of the aircraft call sign, location, and time of the occurrence (UTC). Except for DoD aircraft or those provided for in paragraph 5-2-24, inform the pilot.
Phraseology

YOUR ADS-B TRANSMITTER APPEARS TO BE INOPERATIVE / MALFUNCTIONING.

Note

FAA Flight Standards Service, Safety Standards Division (AFS) is responsible for working with aircraft operators to correct ADS-B malfunctions. The intent of this paragraph is to capture ADS-B anomalies observed by ATC, such as errors in the data (other than Call Sign Mis‐Match events, which are detected and reported to AFS automatically) or instances when civil ADS-B transmissions would normally be expected but are not received (e.g., ADS-B transmissions were observed on a previous flight leg).
If a malfunctioning ADS-B transmitter is jeopardizing the safe execution of air traffic control functions, instruct the aircraft to stop ADS-B transmissions, and notify the OS/CIC.
Phraseology

STOP ADS-B TRANSMISSIONS, AND IF ABLE, SQUAWK THREE/ALFA (code).

Note

Not all aircraft have a capability to disengage the ADS-B transmitter independently from the beacon code squawk.

Reference

FAA Order JO 7110.65, Para 5-2-23, ADS-B Alerts.
FAA Order JO 7210.3, Para 2–1–33, Reporting Inoperative or Malfunctioning ADS-B Transmitters.
FAA Order JO 7210.3, Para 5–4–9, ADS-B Out OFF Operations.
FAA Order JO 7110.67, Para 19, ATC Security Procedures for ADS-B Out OFF Operations.