Document ID: chunk:federal_register_of_legislation:F2018C00889:reg:5:p49
Version: federal_register_of_legislation:F2018C00889
Segment Type: reg
Provision Reference: reg 5 (pt 49/51)
Character Range: 155344–158172

aircraft navigation, flight control, cockpit display and other systems function correctly, and that the procedure is flyable.
       12.5A A validation of an RNP AR procedure for an aircraft type mentioned in subclause 12.5 must be conducted in:
(a) an  aircraft of the type, being flown by day in V.M.C.; or
(b) a level D flight simulation training device for the aircraft type.
       12.5BA validation of an RNP AR procedure mentioned in subclause 12.5 that is conducted in an aircraft must not perform a non-normal operation unless:
(a) the flight is conducted as a private operation that does not carry a passenger, unless the passenger is a CASA officer who is on duty for the flight; or
(b) the non-normal operation is required for the safety of the flight.
Note   Requirements for the validation of RNP AR procedures in non-normal operations are not regulated by clause 12 of Appendix 7 to this Civil Aviation Order.
       12.5C If the matters mentioned in paragraphs 12.5 (b), (c) and (d) are confirmed for the procedure and the aircraft type, the operator must retain a copy of validated navigation data in such form that is sufficient to enable comparison with updated data in accordance with subclause 12.6.

       Data updates
       12.6Upon receipt of each navigation data update for an RNP AR procedure, and before using the updated navigation data in a type of aircraft, the operator must:
(a) compare the updated data to the procedure validated under subclauses 12.5 to 12.5C and identify and resolve any discrepancies between the updated data and the validated procedure; and
(b) if any change affects the approach path or aircraft performance requirements for the procedure — confirm that the change is intended with the person with responsibility for maintenance of the procedure under Part 173 of CASR; and
(c) validate the amended procedure for the type of aircraft in accordance with subclauses 12.5 to 12.5C.

       Aircraft modifications
       12.7Subject to subclause 12.8, if a system used in an aircraft type and required for an RNP AR procedure is modified (e.g. software change), the operator must validate the procedure for the aircraft type using the modified system in accordance with subclauses 12.5 to 12.5C, noting that flight control computers, FMS OPS and display software changes are particularly critical.
       12.8 The operator is not required to validate a procedure using a modified system for an aircraft type if the manufacturer of the modified system states in writing that the modification has no effect on the navigation database or path computation for the use of the procedure in the aircraft type.

13 Implementation program
       13.1 RNP AR operations may only be conducted in accordance with the operator's approved implementation program.
       13.2 If an operator