Emergency Procedures · NAV
Transponder Squawk 7700 Emergency Activation
CASA Ref: CASR Part 61 MOS Schedule 3 CNAV 1.4 · FAA Ref: FAA-S-ACS-6C Area IX Emergency Operations
Scenario & Physics Summary
Radar scope primary/secondary target highlighting, emergency frequency 121.5 MHz / 243.0 MHz, and MAYDAY distress procedures.
Interactive 3D Visual Plates & Scenario Media
Plate 1: Transponder Squawk 7700 Emergency Activation
Plate 2: Transponder Squawk 7700 Emergency Activation
Plate 3: Transponder Squawk 7700 Emergency Activation
Plate 4: Transponder Squawk 7700 Emergency Activation
Aerodynamic & Operational Physics
- Squawking 7700 instantly triggers visual emergency flashing alerts on all ATC radar scopes (Civil & Military).
- Provides automatic radar tracking prioritization and alerts adjacent sector controllers.
- Complement with MAYDAY declaration on current frequency or 121.5 MHz guard.
CASA & FAA Exam Gotcha Alert
CASA / FAA Exam Trap: If in contact with ATC, state emergency verbally first. Switch to 7700 when instructed or if unable to establish comms.
Frequently Asked Questions & Exam Explanations
What happens on ATC radar when you squawk 7700?
An emergency alert flash and target highlight triggers across all civil and military air traffic control radar consoles.
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