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09.4 ACC ↔ ACC (External) Coordination

Training Objective

To coordinate aircraft between different FIRs.


Key Knowledge

  • FIR boundaries
  • Letters of Agreement (LOA)
  • Coordination points

Operational Application

Controllers shall:

  • Coordinate aircraft in accordance with LOAs
  • Ensure compliance with boundary conditions
  • Maintain separation until transfer

1. Overview

External coordination ensures safe transfer between FIRs.


2. Core Content

2.1 Coordination Points

  • Defined boundary fixes
  • Transfer occurs at agreed points

2.2 LOA Compliance

  • Defines:
  • Levels
  • Routes
  • Speeds

3. Procedures

3.1 Coordination

  • Controllers shall comply with LOA requirements
  • Deviations shall be coordinated in advance

4. Standards

  • Aircraft shall meet agreed boundary conditions

5. Notes

  • Failure to follow LOA leads to coordination breakdown

2.1 Coordination Points

  • Defined boundary fixes
  • Transfer occurs at agreed points

2.2 LOA Compliance

  • Defines:
  • Levels
  • Routes
  • Speeds

3. Procedures

3.1 Coordination

  • Controllers shall comply with LOA requirements
  • Deviations shall be coordinated in advance

4. Standards

  • Aircraft shall meet agreed boundary conditions

5. Notes

  • Failure to follow LOA leads to coordination breakdown