NATIONAL PROCEDURES
GENERAL INFORMATION/FIR/UIR COVERAGE -This entry is inclusive within the Central American FIR/UIR.
DIMENSIONAL UNITS - ICAO Table except:
1.
Air Traffic Control and MET provide altitudes, elevations, and heights in feet on request.
2.
Air Traffic Control provides vertical speed in feet per minute on request.
3.
In El Salvador, Air Traffic Control provides altimeter setting
in inches; millibars provided on request. (SPEC/GEN 2.1-2)
ALTIMETER SETTING PROCEDURES - Standard
except:
1. Air Traffic Control will not assign FL200 to any aircraft when
QNH pressure is less than 29.92”. (SPEC/ENR 1.7-1)
VERTICAL SEPARATION - Semi-circular.
1. According to agreement between Havana ACC (MUHA) and Central America ACC (MHTG) on route UB500, traffic should use the following:
a. Central America heading to Havana use FL200, 220, 240, 260, 280, 310, 350, 390, etc.
b. Havana heading to Central America use FL190, 210, 230,
250, 270, 290, 330, 370, etc. (SPEC/ENR 1.7-5)
POSITION REPORTING -Standard except:
1. CODES FOR SECONDARY RADAR (SSR) -
a. The aircraft wishing advisory service and RADAR CONTROL, should count with responder equipment (SSR TRANSPONDER) on board.
(AFFSA/AFFSA)
VISUAL FLIGHT RULES
Standard except:
1.
Central America has implemented the ICAO ANNEX 11 airspace classification as follows: FIR - Class F
2.
El Salvador Intl (MSLP) CTLZ VFR weather minima is ceiling 1500’ and visibility 8 km (5 SM).
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