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Independent Approach Operations

Introduction

A word on efficiency and why they are used so infrequently

Requirements (EASA)

  • Separate air traffic controllers are responsible for sequencing and spacing of arriving aircraft to each runway
  • As early as practicable after an aircraft has established communication, the approach control unit advises the aircraft that independent parallel approaches are in force (e. g. ATIS)
  • Aircraft are advised as early as possible of
    • the assigned runway
    • instrument procedure
    • any additional information considered necessary to confirm correct selection
  • Runway centerlines are spaced by minimum of 1035 m
  • The instrument approach procedure that aligns the aircraft with the extended runway centerline is a precision approach procedure
  • The nominal tracks of of the missed approach procedures diverge by at least 30 degrees
  • A NTZ of at least 60 m (2 000 ft) wide is established equidistant between extended runway centerline
  • Aircraft do not penetrate the depicted No Transgression Zone (NTZ) by instructions as follows:
    • A minimum of a nominal 1 000 ft vertical separation or, subject to ATS surveillance system capabilities, a minimum of 3.0 NM horizontal separation is provided between aircraft on adjacent approaches until both aircraft are established on a final approach course or track
  • None of the following meteorological conditions exists:
    • windshear
    • turbulence
    • downdrafts
    • strong crosswind
    • other significant meteorological such as thunderstorms which might otherwise increase deviations from the final approach course or track to the extent that safety may be impaired.

Arrival Sequencing

Intercept Levels

RWY 06L/24R (North): shall intercept at minimum 5000 ft or higher
RWY 06R/24L (South): shall intercept at 3000 ft or 4000 ft

Handoff to Arrival (Feeder)
  • RWY 06L/24R: at 6000 ft to DBANT (on EDDB QNH)
  • RWY 06R/24L: at 4000 ft to DBAST (on EDDB QNH)
Arrival (Feeder) Stations
  • DBANT = EDDB_AN_APP (136.105): responsible for 06L/24R
  • DBAST = EDDB_AS_APP (121.130): responsible for 06R/24L

Turn-On Points

The following examples will use 24-ops as examples. The same procedures apply for 06-ops of course.

Aircraft for RWY 24L at 3000 ft have to be established at least 3 NM prior UBURU, where an arrival for RWY 24R will leave/pass 4000 ft in the descent.

 

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