Non Precision Approaches Flashcards
What types of approach can be flown in FINAL APPROACH mode?
NPA overlays (VOR/NDB) GPS approaches either in VNAV or LNAV
What equipment is required for approach in FINAL APP mode?
1 FMS 1 MCDU 1 PFD 1 ND both FCU channels
GPS primary for GPS approach
Nav accuracy high for overlay approaches
What are the limitations regarding temp and FINAL APPROACH mode?
RNAV/RNP appr can only be flown if temperature is above published limit.
If below the limit, NPAs can be made using selected guidance
Regarding MCDU, what differences are acceptable compared to published profile?
NPA
Lateral = 3º
Vertical = 0.1º
RNAV/RNP
Lateral = 1º
Vertical = 0.1º
On a GNSS appr what scale is represented by full brick deviation?
200ft
Regarding MCDU, what needs to be displayed on NPA and GNSS/RNAV appr?
NPA
Nav accuracy HIGH
GNSS/RNAV
Nav accuracy HIGH and GPS PRIMARY
What is the max difference between the primary altimeters on FINAL APP mode?
100ft
During GNSS approach, what lateral and vertical exceedences should you initiate a missed approach? What downgrades should you go around for?
Lateral
XTK >0.3nm
Vertical
3/4 dot low on profile (75ft)
Loss of both GPS
FM/GPS POS DISAGREE
NAV ACCURACY downgrade
If you need to recover the vertical profile on NPA, what should you select on the FPA?
1* recovers 100ft/nm