Aircraft Operations

II-3-1-2
Procedures — Aircraft Operations — Volume I
1.1.2.5 The FMC may be the source of guidance cues for flight or may also be connected to an autoflight system
that provides guidance cues for automatic flight operations. With this type of avionics, the pilot typically interacts with
the FMC through a control and display unit. Flight crews should be familiar with the functionality of the FMC,
specifically when GNSS is the primary positioning source.
1.2 GENERAL
1.2.1 Operational approval
Aircraft equipped with basic GNSS receivers (either as stand-alone equipment or in a multi-sensor environment) that
have been approved by the State of the Operator for approach operations may use these systems to carry out RNAV
procedures provided that before conducting any flight, the following criteria are met:
a) the GNSS equipment is serviceable;
b) the pilot has a current knowledge of how to operate the equipment so as to achieve the optimum level of
navigation performance;
c) satellite availability is checked to support the intended operation;
d) an alternate airport with conventional navaids has been selected; and
e) the procedure is retrievable from an airborne navigation database.
1.2.2 Flight plan
1.2.2.1 Aircraft relying on basic GNSS receivers are considered to be RNAV-equipped. The appropriate
equipment suffix shall be included in the flight plan.
1.2.2.2 Where the basic GNSS receiver (whether stand-alone equipment or in a multi-sensor environment)
becomes inoperative, the pilot should immediately:
a) advise ATC;
b) request an available alternative procedure consistent with the capability of the FMC system; and
c) amend the equipment suffix, where possible, for subsequent flight plans.
1.2.2.3 It should be noted that depending on the type of certification of the FMC being used, the manufacturers’
aircraft flight manuals and data may allow for continued operation.
1.2.3 Navigation database
Departure and approach waypoint information is contained in a navigation database. If the navigation database does not
contain the departure or approach procedure, then the basic GNSS stand-alone receiver or FMC shall not be used for
these procedures.
23/11/06