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Management of non-Mode S compliant State aircraft post 31 Mar 2009 |
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Mode S installation programmes for State aircraft will not be completed during the agreed State Aircraft Transition Period, which terminates on 31 March 2009. The relatively large number of State aircraft that will remain non Mode S compliant after this date will inevitably raise technical and operational difficulties for European ATM systems that are increasingly dependent upon Mode S surveillance.
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National Aviation Authorities (NAAs) of participating Mode S implementing States have each promulgated details of the airspace notified for Mode S, dates from which operational constraints might have to be applied to non Mode S compliant State aircraft and contact points for dispensation requests.
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Procedure with effect from 01 April 2009 |
From 1st April 2009, until such dates identified and promulgated by each State, a general dispensation will apply to all non Mode S compliant State aircraft included in the 2009 airborne equipage plans submitted by State military authorities and accepted by NAAs. The promulgation of such dates does not, however, preclude NAAs from imposing operational constraints on non Mode S compliant State aircraft prior to the promulgated dates, should the situation warrant.
After these dates, further locally managed dispensations may be granted, subject to approval by the appropriate NAA. Such dispensations, however, may be withdrawn or amended by NAAs at any time to make provision for unexpected flight safety or operational efficiency issues.
Updates to the 2009 State Aircraft Mode S Airborne Equipage Plans will be required for 2010 and 2011, to enable NAAs to monitor future rates of compliancy. These updates will be co-ordinated through the Civil/Military Interface Standing Committee (CMIC).
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Need for dispensation:
- All State aircraft not yet compliant with Mode S ELS requirements need a dispensation for flights in ELS and EHS notified airspace
- Transport-type State aircraft assessed to be EHS capable (i.e. able to provide the 8 required downlinkable parameters) but not yet compliant with EHS requirements need a dispensation for flights in EHS notified airspace
- Transport-type State aircraft assessed to be non-EHS capable do NOT need a dispensation for flights in EHS notified airspace. They must as a minimum however, be compliant with Mode S ELS requirements.
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Full details of the airspace concerned, effective dates and points of contact are provided below for the following Mode S implementing States: Belgium, France, Germany, the Netherlands, Switzerland and the United Kingdom. It should be noted that other European States that are in the process of deploying SSR Mode S surveillance systems may also impose restrictions to flights by non Mode S compliant State aircraft within notified Mode S airspace.
Although DSS/CM will try to keep the information updated, the following details are provided for guidance only and may not necessarily be the latest information. Confirmation should be sought from the appropriate State authorities as required.
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