2. Approach Procedures

Question 1

2.3 Minimum Sector Altitudes

1) What obstacle clearance do 25NM and 10 NM MSAs provide?
2) When may an aircraft deviate from track for the purposes of entering an instrument approach?
3) What point are MSAs based off of?

Answer 1

1) 1000 ft
2) When within the 25NM or 10NM ring and at or above the applicable MSA.
3) With reference to the appropriate nominated significant point

Question 2

2. 5 Procedure Entry
   1) When can an A/C commence the approach without holding in a) Controlled Airspace, b) In any airspace, using radio navaids and c) For procedures using GNSS?

STUDY CAPTURE REGIONs

Answer 2

1)
a) In Controlled Airspace, ATC has cleared the A/C for the approach
b) In any airspace, for procedures using radio navaids:
- Reversal procedure satisfied
- DME arc entry requirements are satisfied
- En route track to the procedures fix or facility is within
30 deg either side of the first track of the procedure.
c) For procedures usings GNSS, within capture region OR in constrolled airspace, the A/C is being vectored to intercept the initial approach segment or is tracking to the intermediate fix.

Question 3

2. 7 Missed Approach Procedure

1) What should occur if the missed approach procedure is initiated before the MAPT?

Answer 3

1) The A/C should track to the MAPT before commencing the missed approach procedure.

Question 4

2.8 Reversal Procedures

1) What is the purpose of reversal procedures?
2) What are the three types of reversal procedures?

Answer 4

1) Used to establish the A/C inbound on an intermediate or final approach track at the desired altitude. Consists of an outbound track following by a turning maneuver in order to reverse direction onto the inbound track.
2) 45/180 , 80/260, Base turn

Question 5

2.8 Reversal Procedures

1) What is the purpose of reversal procedures?
2) What are the three types of reversal procedures?

Answer 5

1) Used to establish the A/C inbound on an intermediate or final approach track at the desired altitude. Consists of an outbound track following by a turning maneuver in order to reverse direction onto the inbound track.
2) 45/180 , 80/260, Base turn

Question 6

2. 9 DME Arcs

1) When must DME arcs be joined?

Answer 6

1) At or below an IAF at an altitude not below the relevant MSA or appropriate sector DME arrival step