Low Level Coordination Procedure

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Overview

This document outlines the procedures which should be used when co-ordinating low level traffic in the vicinity of an aerodrome which is inside controlled airspace.


Traffic Remaining In The Visual Circuit

Procedure:

  • Circuit traffic is to remain with Aerodrome Control.
  • Aerodrome Control must inform Approach Control that the circuit is active.

  • Departing Traffic

    Approach Control is responsible for issuing the zone exit clearance. The clearance will be co-ordinated with Aerodrome Control, with Aerodrome Control giving the clearance to the departing aircraft.

    Procedure:

  • Departing aircraft will contact the appropriate frequency passing details of their intended flight.
    • Aerodrome Control must inform Approach Controller of the departing flights details:
      • Callsign
      • Destination
      • Direction the aircraft wishes to leave the CTR
    • Approach Control shall issue a clearance containing:
      • Callsign
      • Clearance Limit
      • Altitude Restriction
      • Flight Rule
      • Squawk Code
      • Clearance Restriction if applicable
    • Prior to departure Aerodrome Control shall request a release for the departing aircraft from Approach Control.

    Aircraft shall only be transferred to Approach Control once they are clear of any traffic under the responsibility of Aerodrome Control.

    NB: If there is no approach controller online, then the tower controller may issue the clearance to leave the Stansted CTR, however must release the aircraft when leaving the ATZ and is no longer responsible for it after this point.


    Arriving Traffic

    Approach Control is responsible for issuing the clearance into controlled airspace.

    Procedure:

    • Arriving aircraft should endeavour to make initial contact with Approach Control at least 15nm or 5 minutes flying time from the zone boundary passing their intentions.
    • Approach Control shall pre-note the arriving aircraft to Aerodrome Control. The pre-note shall contain the following:
      • Callsign
      • Point of arrival/the direction the aircraft is approaching from
      • Estimated arrival time
    • Aerodrome Control shall pass any relevant information.
    • The aircraft is transferred from Approach Control to Aerodrome Control once the aircraft has the aerodrome in sight.
    • Aerodrome Control shall give the arriving aircraft circuit joining instructions.

    Aerodrome Control can refuse traffic in cases where the traffic situation dictates. For example, when an emergency is in progress or there is a high amount of traffic within the circuit. Approach Control shall then inform the arriving traffic of the reason zone entry cannot be granted, an expected time to enter the zone and an instruction to remain clear of control airspace.

    NB: If there is no approach controller online then the tower controller shall not issue a clearance to enter the CTR. The pilot should contact the tower in good time when visual with the airfield for instructions on how to enter the ATZ. If the tower controller is unable to accommodate the joining traffic then they shall instruct the pilot to "remain clear of controlled airspace", the pilot should then be accommodated when possible.


    Transiting Traffic

    Procedure:

  • Transiting aircraft should endeavour to make initial contact with Approach Control at least 15nm or 5 minutes flying time from the zone boundary passing their intentions.
  • Approach Control shall notify Aerodrome Control of any transiting aircraft which are routing through the traffic circuit or any aircraft routing which conflicts with traffic under the responsibility of Aerodrome Control.
  • If there is no conflict with traffic under the responsibility of Aerodrome Control, the transiting aircraft is to remain with Approach Control.
  • If a conflict is likely to occur, the transiting aircraft shall be transferred from Approach Control to Aerodrome Control to allow the transiting traffic to be safely integrated with any aircraft under the responsibility of Aerodrome Control. Once clear of any traffic under the responsibility of Aerodrome Control, the transiting aircraft shall be transfer back to Approach Control.
  • NB: If approach control is not online, then the pilot should contact the tower in good time to obtain a clearance to transit the ATZ. The clearance may be passed by the tower controller and the pilot may remain in contact with tower until they are clear of the ATZ, at this point they shall be released.