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Elements and Performance Criteria

1. Select approach and determine applicable minima
   • Current instrument approach and landing (IAL) chart for GNSS/NPA approach to be flown is selected
2. Entry to and conduct of instrument approach and missed approach procedure are reviewed and briefed to flight crew
3. Currency of GNSS receiver database is confirmed
4. Applicable meteorological minima of approach for aircraft performance category is determined
5. Fuel availability and holding or diversion action if visual reference is not established, is reviewed and briefed to flight crew
6. Select, retrieve and activate approach from database
   • GNSS approach for appropriate runway from GNSS receiver navigation database, is selected
7. Initial approach fix to be used to transition approach procedure is selected
8. Aerodrome altimeter subscale setting to obtain elevation or altitude (QNH) in GNSS receiver is entered and approach activated
9. Confidence check of tracks and distances between approach way-point (WPT) as calculated by the GNSS receiver is performed
10. Course deviation indictors (CDI) are checked and selected to GNSS as required
11. Monitor GNSS signal integrity
    • Receiver autonomous integrity monitoring (RAIM) is checked for availability on the approach
12. RAIM indications are monitored throughout the approach
13. Conduct initial approach
    • Altimeter is set to appropriate QNH
14. Track to initial approach WPT is maintained at or above route minimum safe altitude (MSA) or lowest safe altitude (LSALT)
15. Conduct holding pattern
    • Automatic sequencing of GNSS is suspended
16. Published holding pattern is conducted at appropriate initial approach WPT using prescribed sector entry procedure
17. Automatic sequencing is resumed to continue approach
18. Conduct approach procedure
    • GNSS/NPA instrument approach is conducted while descending on specified track to each approach WPT
19. Approach altitude restrictions are complied with
20. GNSS receiver transitions to approach mode is confirmed no later than the final approach point (FAP), WPT or discontinue approach
21. Secondary navigation aid is utilised to maintain situational awareness
22. Descent to not below the minimum descent altitude (MDA) while tracking to the missed approach point, is conducted within tolerances
23. Landing runway is identified
24. Runway or circling approach for landing is conducted after visual reference is established
25. Conduct missed approach procedure
    • Conditions requiring a missed approach are recognised and missed approach is initiated
26. Published missed approach procedure is executed if visual reference is not established before reaching the MAPt or RAIM
27. Missed approached is conducted on any other event specified in aeronautical information publication (AIP) or GNSS operations manual
28. Aircraft is manoeuvred to MAPt
29. Missed approach mode is selected
30. Missed approach procedure is conducted in accordance with IAL chart
31. GNSS receiver is configured to conduct another approach or to hold or divert as required
32. Obstacle clearance in instrument meteorological conditions (IMC) is maintained

Range Statement

Range is restricted to essential operating conditions and any other variables essential to the work environment.

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