DDG

Question 1

Non-safety related items

Answer 1

Defer with 05-00-01

Interval -D (120 days)

Question 2

Passenger Convenience Items

Answer 2

Defer with 25-20-01

Question 3

Dispatch / Commencement of flight

Answer 3

Point at which aircraft moves under own power

Question 4

Rectification intervals

Answer 4

Cat A - No standard interval. Time is specified in MEL. If in days excludes day of discovery. If in any other time period - starts at time of deferral.

Cat B - 3 days (excluding day of discovery)

Cat C - 10 days (excluding day of discovery)

Cat D - 120 days (excluding day of discovery)

Question 5

Main Maintenance Base

Answer 5

A place where time, spares and personnel exist for rectification and repair.

Once an aircraft has dispatched from a main maintenance base then the restrictions to dispatch from a base no longer apply.

After dispatch from a Main Maintenance Base on the first flight of the day it becomes a Transit station for the rest of the day (GMT).