DDG/MEL/CDL

Question 1

What does DDG stand for?

Answer 1

“Dispatch Deviation Guide”

Question 2

What is the difference between an MMEL and an MEL?

Answer 2

MEL can’t be less restrictive than the MMEL but can be more restrictive

Question 3

Up until what point in time is the MEL applicable?

Answer 3

Up until the time the aircraft is moving under it’s own power for the purpose of taking off

Question 4

What 3 types of defects are Cathay using for the AML?

Answer 4

ADD = Acceptable Deferred Defect
SADD = Significant Deferred Defect
PADD = Performance Acceptable Deferred Defect

Question 5

What is the meaning of the following boxed letters in the DDG?
P
S
L
E
Z

Answer 5

P = Item with performance limitations
S = Significant ADD
L = Affects autoland for LVO. Must be deferred as a PADD
E = Could affect ETOPS capability. Are PADD:s
Z = Cabin significant ADD

Question 6

What does the letters (M) and (O) in brackets mean?

Answer 6

(M) = Identifies a maintenance procedure
(O) = Identifies a crew procedure

Question 7

What is the difference between an MEL and a CDL item?

Answer 7

MEL =  deals with inoperative equipment
CDL =  deals with missing items like panels and seals. Covers deficiencies externally that affects aircraft performance

Question 8

What is the time limits for the following categories of ADD:s?
CAT A
CAT B
CAT C
CAT D

Answer 8

CAT A = Rectified within specified time period
CAT B = Rectified within 3 days, excluding day of
discovery
CAT C = Rectified within 10 days
CAT D = Rectified within 120 days

Question 9

What is are the 6 levels of EICAS messages?

Answer 9

1. Warning
2. Caution
3. Advisory
4. Comm
5. Memo
6. Status

Question 10

How many recirculation fans are installed and how many are required?

Answer 10

Installed: 4
Required: 0

Question 11

How many Lavatory/Galley Ventilation fans are installed and how many are required?

Answer 11

Installed: 2
Required: 1

Question 12

How many Equipment Cooling Supply Fans are installed and how many are required?

Answer 12

Installed: 2
Required: 1

Question 13

How many Equipment Cooling Vent Fans are installed and how many are required?

Answer 13

Installed: 1
Required: 0

Question 14

How many VHF radio systems are installed and how many are required?

Answer 14

Installed: 3
Required: 2, as long as the Left VHF radio is working

Question 15

How many lavatories may be inoperative for dispatch?

Answer 15

Maximum 2

Question 16

How many crowbars are installed and how many are required?

Answer 16

Installed: 2
Required: 2

Question 17

How many Fire Gloves are on the aircraft and how many are required?

Answer 17

Installed: 2
Required: 1

Question 18

How many megaphones are installed and how many are required?

Answer 18

Installed: 3
Required: 3

Question 19

How many First Aid Kits are installed and how many are required?

Answer 19

Installed: 5
Required: 4

Question 20

How many Portable Fire extinguishers are required in the Cabin?

Answer 20

8

At least half but not less than 2 has to be Halon(BCF)

Question 21

How many static wicks are installed and how many are required?

Answer 21

Installed: 54
Required: 49