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Elements and Performance Criteria

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

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria on at least one occasion and include:

adapting to differences in equipment and operating environment in accordance with standard operating procedures applying global navigation satellite system (GNSS) operating procedures to typical navigation tasks applying precautions and required action to minimise, control or eliminate identified hazards applying relevant aeronautical knowledge applying relevant legislation and workplace procedures communicating effectively with others completing relevant documentation determining conditions permitting descent below minima determining GNSS/ non-precision approach (NPA) procedure applicable minima for aircraft identifying and correctly using relevant equipment implementing contingency plans implementing work health and safety (WHS)/occupational health and safety (OHS) procedures and relevant regulations interpreting GNSS/NPA instrument approach procedure chart modifying activities depending on workplace contingencies, situations and environments monitoring and anticipating operational problems and hazards and taking appropriate action monitoring GNSS signal integrity monitoring work activities in terms of planned schedule operating electronic communications equipment to required protocol performing systematic scan techniques predicting availability of approach RAIM at the destination or alternate aerodrome predicting RAIM availability at destination and estimated time of arrival (ETA) using aircraft GNSS receiver and, as required, an external RAIM prediction service reading, interpreting and following relevant regulations, instructions, procedures, information and signs reporting and/or rectifying identified problems promptly, in accordance with regulatory requirements and workplace procedures selecting and using required personal protective clothing and equipment conforming to industry and WHS/OHS standards selecting, retrieving and activating approach from database setting local or area barometric pressure adjusted for sea level (QNH) at appropriate stages of flight working collaboratively with others working systematically with required attention to detail without injury to self or others, or damage to goods or equipment.

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Knowledge Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of:

CASR Part 61 Manual of Standards Schedule 3 Aeronautical Knowledge relevant to instrument flight operations cause and magnitude of typical GNSS errors conditions required to transition to and operate in the mode of operation for a GNSS/NPA, and the associated course deviation indicator (CDI) sensitivity and RAIM protection provided effect of each type of RAIM prediction on operational requirements effects of availability or otherwise of baro-aiding on RAIM availability and prediction effects of satellite unserviceability on reliability of each type of prediction emergency procedures factors that adversely affect the conduct of a GNSS/NPA and suitable pilot procedures to minimise such effects GNSS operating procedures for navigation tasks GNSS operational and serviceability checks GNSS system fundamentals and principles of operations GNSS warnings and messages GNSS/NPA instrument approach procedure chart human factors limitations associated with using GNSS equipment mode of operation required during each segment of a GNSS/NPA operating electronic communications equipment operating procedures for GNSS equipment that reduce or eliminate errors operating procedures that provide safeguards against GNSS navigational errors operational requirements that apply to planning a flight on the basis of conducting a required navigation performance (RNAV) (GNSS) procedure at the destination parameters applicable to RAIM warnings in the en route, terminal and approach modes prediction limitations that apply to availability of approach RAIM at the destination or alternate aerodrome procedures for adjusting controls to optimise equipment operation procedures for managing and controlling hazardous situations relevant sections of national and state/territory regulatory requirements and codes of practice relevant WHS/occupational health and safety (OHS) and environmental procedures and regulations requirements applicable to pilots and equipment for GNSS operations requirements for completing relevant documentation sources of information on differences in equipment and related standard operating and servicing procedures steps involved in planning work activities tracking tolerances, automatic way-point sequencing, CDI sensitivity and RAIM availability parameters for entry, RAIM availability and approach segments.

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