DME/GPS Arrival Procedures

Question 1

When may an aircraft descend during a DGA?

Answer 1

Once the aircraft is established within the sector or on the specified track, and then only down to the sector MSA. (Jepp Term: AU-9)

Question 2

May an aircraft manoeuvre within a DGA sector?

Answer 2

Yes, but it must be maintained within the sector limits and above the sector MSA. (Jepp Term: AU-9)

Question 3

May an aircraft be manoeuvred in a DGA once it has passed the final approach fix?

Answer 3

No. (Jepp Term: AU-9)

Question 4

What are the four GPS requirements before commencing a DGA?

Answer 4

• The database must be current
• Coordinates of stations must not be able to be modified
• GPS integrity (RAIM) must be available before descent below LSALT/MSA
• The nominated aid (VOR/NDB) must be used for track guidance. (Jepp Term: AU-9)

Question 5

When must a DGA be discontinued?

Answer 5

• In the event of disparity between the aids (VOR (>5.2degrees) /NDB (>6.9 degrees)) and GPS track guidance.
• If a RAIM warning appears or if RAIM is not available the approach must be discontinued. (Jepp Term: AU-9)

Question 6

When being cleared a DGA from ATC, does this constitute a clearance to land?

Answer 6

No, only the approach down to the MDA. (Jepp Term: AU-9)

Question 7

May an aircraft enter a hold or orbit or use holding pattern entry procedures when cleared a DGA by ATC?

Answer 7

No. ATC will not clear a DGA that requires holding. (Jepp Term: AU-9)

Question 8

On a DGA in CTA, who’s responsibility is it to maintain the aircraft within the DGA sectors above the sector MSA’s?

Answer 8

It is the pilot responsibility. (Jepp Term: AU-9)

Question 9

When cleared a DGA by ATC, does this allow you to manoeuvre within the circling area?

Answer 9

Yes. (Jepp Term: AU-9)