Guidance concerning Air Navigation in and above the NAT MNPSA
Eastbound Traffic originating in New York/Santa Maria, during the eastbound OTS.
Eastbound traffic routing, both south of the Night Datum Line, and the main OTS, should flight plan using FL310, FL340, FL360 or FL380.
Eastbound traffic remaining south of the Night Datum Line should flight plan using FL310 or FL360.
The levels allocated to New York Tracks entering Shanwick which cross, or route south of, the Night Datum Line, may be any combination of FL310, FL340, FL360 or FL380, as agreed between Santa Maria and New York.
For this procedure, “New York Tracks” are eastbound OTS Tracks which originate in the New York area and are separated from the main OTS by more than one degree at 30W.
Iberian Tracks are eastbound or westbound organised Tracks, routing between New York and Santa Maria, which do not enter Gander or Shanwick airspace.
The Flight Levels allocated to Iberian Tracks will be any combination of FL330, 350 and/or FL370, as agreed between Santa Maria and New York.
OTS Design & Use
For all westbound Tracks which landfall at or north of PRAWN, Reykjavik require FL340 to be omitted from that Track to allow profiles for aircraft originating in the Reykjavik OCA.
NAT Doc 007