Elements and Performance Criteria
- Select approach and determine applicable minima
- The current Instrument Approach and Landing (IAL) chart for the GPS/NPA approach to be flown is selected
- The entry to and conduct of the instrument approach and missed approach procedure is reviewed and briefed
- The currency of the GPS receiver database is confirmed
- The applicable meteorological minima of the approach for the aircraft performance category is determined
- Fuel availability and holding or diversion action if visual reference is not established is reviewed and briefed
- Select, retrieve and activate approach from database
- GPS approach for the appropriate runway from the GPS receiver navigation database is selected
- Initial approach fix to be used to transition of the approach procedure is selected
- Aerodrome altimeter subscale setting to obtain elevation or altitude (QNH) in the GPS receiver is entered, and approach is activated
- Confidence check of tracks and distances between the approach Way-point (WPT) as calculated by the GPS receiver is performed
- Course Deviation Indictors (CDI) are checked and selected to GPS as applicable
- Monitor GPS signal integrity
- Conduct initial approach
- Conduct holding pattern
- Conduct approach procedure
- GPS/NPA instrument approach is conducted while descending on the specified track to each approach WPT
- Approach altitude restrictions are complied with
- GPS receiver transitions to approach mode is confirmed no later than the Final Approach Point (FAP), WPT or discontinue approach
- Secondary navigation aid is utilised to maintain situational awareness
- Descent to not below the MDA while tracking to the missed approach point is conducted within tolerances
- Landing runway is identified
- Runway or circling approach for a landing is conducted after visual reference is established
- Conduct missed approach procedure
- Conditions requiring a missed approach are recognised and missed approach is initiated
- Published missed approach procedure is executed if visual reference is not established before reaching the MAPt or RAIM
- A missed approached is conducted on any other event specified in AIP or GPS operations manual
- Aircraft is manoeuvred to Missed Approach Point (MAPt)
- Missed approach mode is selected
- Missed approach procedure is conducted in accordance with the IAL chart
- GPS receiver is configured to conduct another approach or to hold or divert as required
- Obstacle clearance in IMC/simulated IMC is maintained