b.
The following general procedures apply to both subsonic and supersonic aircraft.
(1)
If an aircraft is unable to continue flight in accordance with its Air Traffic Control clearance, a revised clearance shall, whenever possible, be obtained prior to initiating any action, using the radiotelephony distress or urgency signal as appropriate.
(2)
If prior clearance cannot be obtained, an Air Traffic Control clearance shall be obtained at the earliest possible time and, in the meantime, the aircraft shall broadcast its position (including ATS Route Designator or the Track Code, as appropriate) and intentions, on 121.5 MHz at suitable intervals until Air Traffic Control clearance is received.
(ICAO 7030/4/RAC 4.0)
3. Air Traffic Service (ATS) Route Designators for Oceanic, Bahama, Atlantic, Gulf and Puerto Rico:
a.
Oceanic or ATS Routes are identified by the appropriate route designator, e.g., B24.
b.
Bahama Routes are shown with the prefix “BR” preceding the route number, e.g., “BR63”. A suffix of “V” or “L”, as designated, follows the route number, e.g., “BR63V”.
c.
Puerto Rico local area routes are shown with the prefix “RTE” (route) preceding the route number, e.g., “RTE7”.
d. Atlantic Routes are shown with the prefix “AR” preceding e. Gulf Routes are identified by the total name the route number, e.g., “AR5”. supplemented by an appropriate route number, e.g., “GULF RTE
26” (SPEC/IACC 1, Pg 64-65)
SECTION B: NORTH AMERICAN (NAM) REGION
NORTH AMERICAN REGIONAL POSITION REPORTING - Standard.
SUPPLEMENTARY PROCEDURES
VISUAL FLIGHT RULES
NATIONAL PROCEDURES Standard.
DIMENSIONAL UNITS - Refer to individual FIR/UIR and/or National Supplementary Procedures. INSTRUMENT FLIGHT RULES
ALTIMETER SETTING PROCEDURES - Standard. Standard.
VERTICAL SEPARATION - Semi-circular.
SECTION C. NORTH ATLANTIC (NAT) REGION
NORTH ATLANTIC (NAT)
SUPPLEMENTARY PROCEDURES
NATIONAL PROCEDURES
NOTE: Refer to Area Planning (AP/2) Europe/Africa/Middle East for detailed North Atlantic Regional Supplementary Procedures.
SOUTH AMERICAN
SUPPLEMENTARY PROCEDURES
NATIONAL PROCEDURES
DIMENSIONAL UNITS - Refer to individual FIR/UIR and/or National Supplementary Procedures.
ALTIMETER SETTING PROCEDURES - Standard. (ICAO 7030/4/SAM RAC 1.2)
VERTICAL SEPARATION -Semi-circular.
POSITION REPORTING -Standard except:
1.
All aircraft on VFR flights, and those on IFR flights outside Controlled Airspace, shall maintain a watch on a radio station furnishing communications for the unit providing Flight Information Service in the Flight Information Region and file with that station information as to their position unless otherwise authorized by the state overflown.
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