Document ID: chunk:federal_register_of_legislation:F2025C00187:reg:3:p7
Version: federal_register_of_legislation:F2025C00187
Segment Type: reg
Provision Reference: reg 3 (pt 7/9)
Character Range: 189054–191869

the route is one where, after making allowance for possible tracking errors of ±9° from the last positive fix, the aircraft will come within the rated coverage of a ground-based navigation aid which can be used to fix the position of the aircraft; and
           (ii) the maximum time interval between positive fixes is not more than 2 hours; or
(c) visual reference to the ground or water, but only:
 (i) when unable to operate in accordance with paragraph (a) or (b); and
           (ii) by day; and
           (iii) if weather conditions permit flight in VMC; and
           (iv) if the VFR position-fixing requirements mentioned in subsections 13.02 (1) and (2) are complied with.
       (2) The pilot in command of an aircraft may:
(a) operate in an airspace or on a route designated as requiring use of a particular navigation specification; or
(b) conduct a terminal instrument flight procedure designated as requiring use of a particular navigation specification;
        only if the aircraft is approved for operation under the particular navigation specification.
       (3) If the pilot in command is:
(a) operating in an airspace or on a route that requires the use of GNSS; or
(b) conducting a terminal instrument flight procedure that requires the use of GNSS;
        then the operation must be conducted using an approved GNSS.
       (4) If the navigation system being used becomes inaccurate, unreliable or inoperative, the pilot in command must do the following:
(a) monitor the aircraft's track by reference to the other navigation aids with which the aircraft is equipped;
       Note   GNSS cannot be used to substitute for the VOR or NDB: see subsection 14.05 (1A).
(b) carry out appropriate procedures designed to maintain aviation safety in the event of loss of navigation equipment;
(c) notify ATS.
       (5) The pilot in command of an aircraft must ensure that data entered into an area navigation system has:
(a) for a multi-crew operation — been crosschecked for accuracy by at least 2 flight crew members; or
(b) for a single-pilot operation — been checked for accuracy by the pilot in command.
       (6) The pilot in command of an aircraft must ensure that position and tracking information is checked:
(a) at, or before, each waypoint specified as a reporting point for the flight and published in the authorised aeronautical information or designated by ATS; and
(b) as far as practicable, at, or before, each en route waypoint published in the authorised aeronautical information; and
(c) at regular intervals (as far as practicable) during navigation via waypoints not published in the authorised aeronautical information.
       (7) The pilot in command of an aircraft must ensure that, for a terminal instrument flight procedure in which GNSS will be used as the sole means of