IFR Approaches

Question 1

Will ATC protect the missed approach?

Answer 1

Yes

Question 2

Under what conditions can ATC protect the missed approach by instructing you to enter the circuit?

Answer 2

Piston and Turboprop:
• Day: 1200ft, vis 5km or the circling minima for the approach and category being flown (higher)
• Night: 2000ft, vis 8km or circling minima for approach and category flown (higher)

Jet: Night minima for turboprop, both day and night

Question 3

How can a pilot advise they do not wish to enter the circuit in the event of a missed?

Answer 3

Advising both approach and aerodrome control of this preference on first contact with each

Question 4

How is the circling area determined?

Answer 4

Drawing arcs centered on the threshold of each usable runway and joining those arcs with tangents

Question 5

What are the circling area radii?

Answer 5

Cat A: 1.68nm
Cat B: 2.66nm
Cat C: 4.2nm
Cat D: 5.28nm

Question 6

When will the circling area be larger

Answer 6

When elevation is above 1000ft (Taupo, Queenstown). Not specified on chart

Question 7

Can circling max speed be lower than the category speed?

Answer 7

Yes - will be specified on chart. Used to lower the MDA from something impractical

Question 8

When will the ATIS advise the weather is suitable for a visual approach?

Answer 8

Day only
Visibility at least 16km
Ceiling at least 1000ft above minimum radar vectoring altitude or applicable instrument approach procedure commencement altitude

Night:
Only at Christchurch for RWY 11/29
Visibility at least 16km
No cloud below 5000ft

Question 9

What lights must be in sight for the visual approach at night?

Answer 9

The runway lights.
Aerodrome beacon, REIL, or approach lights are insufficient

Question 10

What is the visual segment surface?

Answer 10

A surface applicable to straight-in minima only.
Originates 60m from the landing threshold at threshold height, with a slope of 1.12 degrees below the approach angle. Ends where the surface meets MDA/DA
Obstacles less than 15m above the threshold are ignored. Higher obstacles penetrating this surface must be removed, or require an aeronautical study

Question 11

What is the requirement for using remote QNH?

Answer 11

Add 5ft to the minimums for every nm past 5nm from the source

Question 12

When can remote QNH not be used?

Answer 12

When chart states “use (local) QNH only”
Flying RNP approaches
Using LNAV/VNAV minima (says “use of remote QNH NA”)

Question 13

When do you need to nominate an alternate?

Answer 13

Within 1 hour either side of ETA:
• ceiling less than 1000ft above minima
• visibility less than 5km, or 2km above minima (greater)

Question 14

What are the alternate nomination requirements for a non-precision approach?

Answer 14

At ETA:
Ceiling of 800ft or 200ft above MDA (higher)
Visibility of 4000m or 1500m above minima (higher)

Question 15

What are the alternate nomination requirements for a precision approach?

Answer 15

At ETA:
Ceiling of 600ft or 200ft above minima (greater)
Visibility of 3000m or 1000m above minima (greater)

Question 16

How far should you descend in IMC in uncontrolled airspace where a traffic conflict is likely?

Answer 16

1200ft above aerodrome level

Question 17

Whats the Initial Approach Segment?

Answer 17

• DME Arc
• One or more reversal procedures
• A leg from an initial fix to an intermediate fix

Question 18

What’s the Missed Approach Segment?

Answer 18

The segment which provides safe climb in the event of a go-around

Question 19

Final Approach Segment

Answer 19

FAF/FAP to minimums or missed approach point

Question 20

Intermediate Approach Segment

Answer 20

Established on final approach. Ends at the FAP/FAF