Managed NPA and system failure

Question 1

RNAV (GNSS) approach

GPS PRIMARY LOST on both NDs

Answer 1

If no visual Go-around

Question 2

RNAV (GNSS) approach

NAV ACCUR DOWNGRAD on 1 FMGS

Answer 2

Use AP/FD on remaining side

Question 3

RNAV (GNSS) approach

XTK > 0.3 NM

Answer 3

If no visual Go-around

Question 4

RNAV (GNSS) approach

NAV ACCUR DOWNGRAD on both FMGS

Answer 4

If no visual Go-around

Question 5

RNAV(GNSS) approach

GPS PRIMARY LOST on 1 ND

Answer 5

Use AP/FD on remaining side

Question 6

RNAV (GNSS) approach

NAV FM/GPS POS DISAGREE on ECAM

Answer 6

If no visual Go-around

Question 7

NPA approach

NAV ACCURACY LOW

Answer 7

HDG Pull, use TRK FPA for approach

Question 8

Acceptable tolerance on lateral and vertical profile between MCDU and chart on FINAL APP

Answer 8

• Lateral track:

• 1° for RNAV/GPS
• 3° for Radio NAVAID

• Vertical path: 0.1°

Question 9

Acceptable tolerance on lateral profile between MCDU and chart on NAV FPA

Answer 9

• 1° for RNAV/GPS
• 3° for Radio NAVAID

Question 10

RNAV (GNSS) approach

Crosstrack error tolerance on approach

Answer 10

• 0.1 NM Call from PM
• 0.3 NM If no visual Go-around

Question 11

RNAV (GNSS) approach using LNAV/VNAV minima

V/DEV > 3/4 dot

Answer 11

If no visual Go-around

Question 12

RNAV (GNSS) approach using LNAV/VNAV minima

Vertical error tolerance on approach

Answer 12

• 1/2 dot Call from PM
• 3/4 dot If no visual Go-around