World Air Ops | NAT | Doc 007 MNPS Guidance
World Air Ops | NAT | Doc 007 MNPS Guidance
World Air Ops | NAT | Doc 007 MNPS Guidance
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<strong>Guidance</strong> concerning <strong>Air</strong> Navigation in and above the <strong>NAT</strong> <strong>MNPS</strong>A ATTACHMENT 4SSR EquipmentFollowing the oblique stroke insert one of the following letters to describe the serviceable SSRequipment carried:N Nil;A Transponder – Mode A – 4096 Codes;C Transponder – Mode A – 4096 Codes and Mode C;I Transponder – Mode S with aircraft identification transmission but without pressurealtitude transmission;P Transponder – Mode S with pressure altitude transmission but without aircraftidentification transmission;S Transponder – Mode S with both aircraft identification and pressure altitudetransmission;X Transponder – Mode S without pressure altitude transmission and without aircraftidentification transmission.Note:<strong>Air</strong>craft capable of establishing ADS contracts should indicate this by the use of the additional letterD, regardless of whether the capability represents the ICAO SARPS-compliant ATN-based versionor a FANS-1/A implementation.Common ErrorsThe filing of correct and complete NAV codes in Fields 10 and 18 is important. Within the <strong>NAT</strong>Region some procedures and separation standards employed by ATC depend upon ATC's knowledgeof the equipage and/or the approval status of individual aircraft/crew. The following errors incompleting these fields have been noted. These errors create difficulties for ATC and can result inunnecessary penalties or unachieved benefits for the flights involved.- The filing of only a "G" or "I" rather than filing both when the aircraft is so equipped.- The filing of only a "R" and not filing any NAV codes for detailing the actualequipment.- The filing of a "Z" with no further explanation and either not expanding in Field 18 orputting information in Field 18 that is irrelevant to oceanic operations (e.g. RNP-5).3.8 Field 13: Departure aerodrome and timeInsert the ICAO four-letter location indicator of the aerodrome of departure and, without a space, theestimated off-block time.Note:If no location indicator has been assigned, use ZZZZ and insert in Item 18 the group DEP/ followedimmediately by the name of the aerodrome.3.9 Field 15: RouteThis field starts with the initial cruising speed and level. The basic structure of the field followingthis group consists of a sequence of entries, each of which contains a route (or the text “DCT” tosignal a direct routing) and a fix. In addition, a diagonal slash and a new speed/level group can beappended to a fix.<strong>NAT</strong> <strong>Doc</strong> <strong>007</strong> 112 Edition 2010