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On the 22nd July 2015 Liverpool John Lennon Airport will publish a 12 week stakeholder consultation to seek comments on the proposed introduction of a new procedure for aircrafts final approach to the runway.

The new procedure will provide a contingency for the Instrument Landing System (ILS) is not available.

LJLA’s aim is to replicate the current centre line and glidepath for aircraft landing on runway 09 and 27 as closely as practical. Aircraft will approach LJLA from 7,000 ft. in the same way they do today with ATC professionals vectoring aircraft to intercept the centre line. The number of aircraft using the new procedure is expected to be less than 1% of all aircraft movements at LJLA.

In simple layman’s terms GNSS is for aircraft, what Satnav is for a car. The main exceptions for the aviation industry are that GNSS procedures are in 3 dimensions and there are significantly more safety checks of the process and procedures before they are introduced. At LJLA the new GNSS procedures apply for the final 12 nautical miles (nm) as aircraft align with the runway centreline.

If you wish to find out more about the new GNSS procedure more details can be found here

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