![]() ![]() Source: ICAO Doc 9613, Volume II, Part C,♡.3.3.5 Additional requirements PDE is considered negligible due to the quality assurance process (1.3.6) and crew procedures (1.3.4). To the extent operational procedures are used to monitor FTE, the crew procedure, equipment characteristics, and installation are evaluated for their effectiveness and equivalence as described in the functional requirements and operating procedures. The on-board monitoring and alerting function should consist at least of a NSE monitoring and alerting algorithm and a lateral deviation display enabling the crew to monitor the FTE. ![]() Note.- Compliance with the on-board performance monitoring and alerting requirement does not imply an automatic monitor of FTE. The continuity requirement is satisfied by the carriage of dual independent long-range navigation systems (excluding SIS).ġ.3.3.5.4 On-board performance monitoring and alerting: The RNP system, or the RNP system and pilot in combination, shall provide an alert if the accuracy requirement is not met, or if the probability that the lateral TSE exceeds 8 NM is greater than 10–5.ġ.3.3.5.5 SIS: If using GNSS, the aircraft navigation equipment shall provide an alert if the probability of SIS errors causing a lateral position error greater than 8 NM exceeds 10–7 per hour. 10–5 per hour).ġ.3.3.5.3 Continuity: Loss of function is classified as a major failure condition for oceanic and remote navigation. ![]() The along-track error must also be within ±4 NM for at least 95 per cent of the total flight time.ġ.3.3.5.2 Integrity: Malfunction of the aircraft navigation equipment is classified as a major failure condition under airworthiness regulations (i.e. If you do not have ADS and are not RNP-4 authorized, the controllers have the option of accepting you but using increased separation standards provided: you are RNP-10 qualified, you are in direct communications with the controller, and the controller has the capability of intervening within 4 minutes.ġ.3.3.5.1 Accuracy: During operations in airspace or on routes designated as RNP 4, the lateral TSE must be within ±4 NM for at least 95 per cent of the total flight time. The communication criteria necessary for CPDLC to satisfy the requirement for direct controller-pilot communications shall be established by an appropriate safety assessment.ĥ.4.2.6.3 Longitudinal distance-based separation minima in an RNP RNAV environment not using ADSĥ.4.2.6.3.1 For aircraft cruising, climbing or descending on the same track, the following separation minimum may be used: Separation minimumĥ.4.2.9.2 The following separation minima may be used for aircraft cruising, climbing or descending on:ī) crossing tracks provided that the relative angle between the tracks is less than 90 degrees. Direct controller-pilot communications shall be voice or CPDLC. LONGITUDINAL SEPARATION MINIMA BASED ON DISTANCE USING RNAV WHERE RNP IS SPECIFIEDĥ.4.2.6.2.2 Direct controller-pilot communications shall be maintained while applying a distance-based separation minima.
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