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PilotSchool Knowledge Base

Understanding Radio Failure Procedures

Introduction

Understanding and applying radio failure procedures is a critical aspect of piloting, especially when flying under Visual Flight Rules (VFR). The En Route Supplement Australia (ERSA) provides comprehensive information about these procedures, ensuring pilot safety and regulatory compliance. This section outlines the key procedures and considerations detailed within the ERSA for radio failures.

Accessing the ERSA

The ERSA is a primary resource for flight planning and navigation, including procedures for radio failures. Pilots can access the ERSA through subscription via Airservices Australia. It is essential for pilots to remain updated with the latest quarterly releases to ensure they have current information.

Radio Failure Procedures

Radio failure procedures vary according to the type of airspace and the operational conditions. Below is a structured guide based on both controlled and non-controlled airspaces:

Controlled Airspace (Class C and D)

  1. Maintain Situational Awareness:

    • When flying in controlled airspace and experiencing radio failure, maintain situational awareness and ensure the safety of the aircraft.

  2. Signal Intentions:

    • Remain clear of controlled airspace if already outside of it. If within, continue to adhere to the last clearance received and maintain a listening watch on the usual frequency.
    • Use the aircraft’s transponder to squawk 7600, indicating a radio failure.

  3. Visual Cues and Light Signals:

    • Observe visual signals from the control tower if visibility permits. Coloured light signals are used for communication with non-communicating aircraft.

  4. Landing:

    • Follow the standard traffic pattern, being vigilant for other aircraft and possible instructions from the ground.

Uncontrolled Airspace

  1. Self-Announcement and Separation:

    • In uncontrolled airspace, adhere to the “see and avoid” principle, maintaining visual separation from other aircraft.

  2. Alternative Frequencies:

    • Attempt communication using alternative frequencies or methods (if available).

  3. Emergency Preparedness:

    • Be ready to divert to a nearby aerodrome with sparsely populated airspace if the radio cannot be restored.

General Procedures

  • Use of Transponder: Always squawk 7600 to indicate a radio communication failure.
  • Alternative Landing Sites: Consider landing at an aerodrome without ATC if communication cannot be resumed.

Resources and Further Reading

Pilots should make use of additional resources for detailed procedures and guidelines:

  • ERSA Document and Advisory Circulars:
    • ERSA details can be accessed via Airservices Australia.
    • Advisory Circulars, such as AC 91-10, offer specific operational advice.
  • CASA Guidelines:
    • CASA provides educational content and advisory documents that describe procedures for handling radio failures effectively. Refer to their resources via CASA’s website.

Conclusion

Radio failure is an emergent situation that requires immediate and informed response guided by the procedures outlined in the ERSA. Pilots must familiarize themselves with these procedures and consistently apply them to ensure safety and compliance in all flight operations. Regular review of materials provided by CASA and Airservices Australia, including participation in continuing education, will enhance a pilot’s preparedness for such scenarios.