RNAV

Question 0

What is XTK?

Answer 0

Cross Track Error

It is a measure of how accurately the approach is being flown.
Prog page 4

Question 1

What do ANP and RNP stand for?

Answer 1

Actual Navigation Performance

Required Navigation Performance

Question 2

What do we do with LNAV minima?

Answer 2

Add 40 feet. MDA

Question 3

What do we do with LNAV/VNAV minima?

Answer 3

No correction. DA

Question 4

What is the RNP up to the FAF?

Answer 4

1nm

Question 5

What is the required RNP from FAF to MAP?

Answer 5

0.3nm (progress page 4 enter or verify)

Question 6

What is RNP after MAP?

Answer 6

1nm

Question 7

If ANP exceeds RNP what happens?

Answer 7

FMC alert

‘Unable required NAV performance -RNP

Question 8

Max XTK error on approach?

Answer 8

0.5nm

Question 9

Max XTK error from FAF to MAP?

Answer 9

0.15nm

Question 10

What are the rules re routing to FAF?

Answer 10

• no direct routings to FAF
• direct routings to IF allowed providing
• do not add remove waypoints to RNAV procedure

Question 11

What is APV?

Answer 11

Approach Procedure Vertical Guidance

LNAV + VNAV

Must use non precision calls

Question 12

For a non precision we may use which vertical mode?

Answer 12

VNAV or VS

Question 13

What are some TEM considerations with RNAV?

Answer 13

It is a Baro VNAV System so it has the following limitations

• QNH Blunder Error
• Temperature Error, changes true altitude.
  - warmer air, true altitude higher
  - colder air, true altitude lower, Cold Temp Correction made

Question 14

What does temperature on APV chart signify?

Answer 14

If temperature is lower than this then the LNAV/VNAV minima must not be used.

LNAV minima (MDA) can be used and corrections made.

Question 15

At the FAF both pilot altimeters must be within how much?

Answer 15

+- 100ft

Question 16

Prog Page 4 Vertical Deviation max allowed is?

Answer 16

+- 75ft

Question 17

What messages require a go around?

Answer 17

• unable required NAV perf RNP
• FMC DISAGREE
• verify position
• failure both FMC’s
• Loss AFDS LNAV
• GPS L/R invalid
• IRS Pos Disagree
• Unable procedure airspace

Question 18

What should be checked at the 500 continue/go around call?

Answer 18

• XTK 0.15
• Vertical +- 75ft (3 whites 3 reds)
• landing Configuration
• v/s as required (greater than 1000 must be previously briefed)

Question 19

What procedure do we have at Ryanair to try to avoid CFIT?

Answer 19

• Loadsheet QNH from printed weather
• ATIS or ATC QNH on arrival

If any difference or confusion confirm with ATC

Some helpful guidelines

• 1000ft call shud be around 4 miles
• 2500 call

Question 20

Ryanair up is approved for?

Answer 20

RNAV(GNSS) or RNAV(GPS) approaches to LNAV minima

RNAV(GNSS) or RNAV(GPS) approaches to LNAV/VNAV minima

Question 21

Ryanair is not approved for?

Answer 21

RNAV(GNSS) or RNAV(GPS) approaches to LPV minima

RNAV(RNP) approaches

Question 22

APV (Approach with vertical guidance) is flown to?

Answer 22

LNAV/VNAV minima

Question 23

NPA (non precision approach) is flown to?

Answer 23

LNAV minima (+40 feet)

Question 24

Preflight planning we should check?

Answer 24

• check HIL data and MEL
• check FPL for PBN S1/S2
• check RAIM website
• check NOTAMS for unserviceable items
• check validity of FMC database and approach charts
• ensure procedure to be used is in FMC database