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ILS Approach
May be conducted to CAT I or CAT II minimums, depending on configuration.
Check points
- 1500' RA system tries to engage highest capability
- 800' RA system freezes highest capability, not allowing upgrades
Sequence
Cat II
- Push APP to arm GS and LOC modes and the APPR2 status annuniciator
- Localiser capture, and then glideslope capture
- APPR2 status annunciator becomes active (green) below 1500' RA
Cat I
- Push APP to arm GS and LOC modes and the APPR1 status annuniciator
- Localiser capture, and then glideslope capture
- APPR1 status annunciator becomes active (green) below 1500' RA
Cat I, but with RA set rather than BARO
- APPR1 ONLY amber annunciator is displayed
- Additionally, green APPR1 status annunciator is displayed below 1500' RA