Operating procedures Flashcards
MEL is:
Minimum Equipment List and is based on, but it may not be less restrictive than, the Master Minimum Equipment List (MMEL - produced by the manufacturer)
The MEL lists:
The equipment, systems and installations that must be serviceable before a particular flight is undertaken. It provides the Commander with the authority to operate the aeroplane with specified items of unserviceable equipment.
The CDL (CONFIGURATION DEVIATION LIST) …
Lists the aeroplane panels and doors that may be missing for a particular operation and pictorially indicates areas of damage to the aeroplane skin/ structure that is considered acceptable for flight.
MSA
Minimum Sector Altitude - 1000 ft obstacle clearance / 25 NM radius
MOCA (ex: 4500T)
Minimum Obstacle Clearance Altitude
- The maximum terrain or obstacle elevation whichever is higher, plus
- 1000 ft for elevation up to and including 6000 ft
- 2000 ft for elevation exceeding 6000ft
rounded up to the next 100 ft
MORA (ex: 9800a / 98)
Minimum Off-Route Altitude
- Route MORA (ex: 9800a) provides obstacle clearance in an area extending 10 NM to either side of the route centerline (regardless of the route width) and including a 10 NM radius beyond the points defining the route segments
- Grid MORA (ex: 98) - green up to 10000 ft, brown for 10000 ft and higher
- MORA clears all terrain and obstacles by 1000 ft in areas where the highest elevation is 5000 ft, and by 2000 ft for elevation and obstacles 5001 ft and above
MEA (ex: FL 50) GPS MEA (ex: 4500G)
Minimum En-route Altitude, is the lowest published altitude between radio fixes that meets obstacle clearance requirements between those fixes and, in many countries ensures acceptable navigational signal coverage.
Usable aerodrome
- is adequate for the operation,
- the meteorological conditions satisfy the planning minima for the expected time of operation, and
- applicable crew qualification requirements are complied with.
Destination aerodrome
A destination is an aerodrome served by scheduled, special or charter flights or used due to planning requirements.
Alternate aerodrome
An alternate is an aerodrome to which an aeroplane may proceed and land if it becomes either impossible or inadvisable to proceed to, or to land at the aerodrome intended.
Take-off alternate
An alternate aerodrome to which an aeroplane can safely proceed and land with one-engine inoperative whenever the aerodrome of departure is not available for a possible return due to meteorological or performance reasons.
En-route alternate
An alternate aerodrome to which an aeroplane can safely proceed and land while flying en-route, taking into account weather and aerodrome conditions after experiencing a deviation from the planned conditions, an abnormal or emergency condition.
Intermediate alternate (IA)
An IA is an aerodrome, which offers a landing possibility in case an en-route irregularity requires intermediate landing within the type of aeroplane specific threshold time.
En-route fuel alternate (ERF)
An ERF is an aerodrome, which must be planned if the amount of contingency fuel is reduced to 3% of planned trip fuel.
Destination alternate (DA)
The DA is an aerodrome specified in the flight plan(s) to which a flight may proceed if the destination aerodrome becomes not usable.
