Supplement: MEL / M300 Log

Question 1

We have 3 different colored placards. When do we use the yellow/orange/white placards?

Answer 1

º M351: white placard is used for crew deferrals
º M352: orange placard is used for repetitive action items
º M353: yellow placard is the standard placard

Question 2

What is a Class II ECAM message?

Answer 2

Maintenance status messages that indicate minor system faults

Question 3

When are Class II ECAM messages displayed?

Answer 3

º On the ground when power is applied

º After engine shutdown

Question 4

Where are Class II ECAM messages displayed?

Answer 4

º Lower right side of status page

º Will be indicated by flashing STS on E/WD after engine shutdown

Question 5

What is our procedure for addressing Class II ECAMs?

Answer 5

Advise dispatch/MOC of the Class II message. The crew will be required to make a logbook entry and apply
the appropriate MEL related to the CLASS II message.

Question 6

What is the difference between an MEL and a CDL?

Answer 6

º MEL addresses INOP equipment/component

º CDL addresses missing equipment/component

Question 7

When would a Category L (120 - day interval) repair category be applied?

Answer 7

CDL/RVSM: Administrative Control Item

Question 8

Reference MEL: 28-15-01C
Outer To Inner TK Transfer Valves - LH Wing
N246NV / A320:
Are the transfer valves opened or closed?

Answer 8

Open

Question 9

Reference MEL: 28-15-01C
Outer To Inner TK Transfer Valves - LH Wing
N246NV / A320:
Can the crew placard/complete this deferral?

Answer 9

No

Question 10

Reference MEL: 28-15-01C
Outer To Inner TK Transfer Valves - LH Wing
N246NV / A320:
What does an (M) in the remarks/exceptions section denote?

Answer 10

Maintenance action is required

Question 11

Reference MEL: 28-15-01C
Outer To Inner TK Transfer Valves - LH Wing
N246NV / A320:
Can the crew perform an (M) action?

Answer 11

º When Y is denoted in the CP column and under the supervision of maintenance.
º The crew cannot perform the (M) items for this deferral.

Question 12

Reference MEL: 28-15-01C
Outer To Inner TK Transfer Valves - LH Wing
N246NV / A320:
Can the crew perform an (O) action?

Answer 12

(O) actions are normally performed by the crew.

Question 13

Reference MEL: 28-15-01C
Outer To Inner TK Transfer Valves - LH Wing
N246NV / A320:
How long before a repair?

Answer 13

Category C = 10 consecutive calendar days

Question 14

Reference MEL: 28-15-01C
Outer To Inner TK Transfer Valves - LH Wing
N246NV / A320:
Are there any operational considerations with this deferral?

Answer 14

The dispatch condition results in an unusual distribution of the fuel quantity; the fuel in both outer tanks
will transfer to the inner tanks even when the inner tanks are not empty.
ON GROUND
º After second engine start and prior to takeoff, check that the wing transfer valve is indicated open on
the FUEL SD page.

Question 15

Reference MEL: 28-15-01C
Outer To Inner TK Transfer Valves - LH Wing
N246NV / A320:
What does an (R) in the remarks/exceptions denote?

Answer 15

Repetitive action is required

Question 16

Reference MEL: 28-15-01C
Outer To Inner TK Transfer Valves - LH Wing
N246NV / A320:
What is the repetitive action interval?

Answer 16

Prior to each departure o Once each flight day o Prior to the first flight of the day

Question 17

Reference MEL: 28-15-01C
Outer To Inner TK Transfer Valves - LH Wing
N246NV / A320:Can an (R) action be completed by the crew?

Answer 17

For this deferral the crew can provide verification that the valve(s) are latched open, however maintenance
is required to latch the valve open after re-fueling.

Question 18

Reference MEL: 38-10-01B
Potable Water System
N246NV / A320:
Can the crew placard/complete this deferral?

Answer 18

No

Question 19

Reference MEL: 38-10-01B
Potable Water System
N246NV / A320:
What does an (M) in the remarks/exceptions section denote?

Answer 19

Maintenance action is required

Question 20

Reference MEL: 38-10-01B
Potable Water System
N246NV / A320:
Can the crew perform an (M) action?

Answer 20

º When Y is denoted in the CP column and under the supervision of maintenance.
º The crew cannot perform the (M) items for this deferral.

Question 21

Reference MEL: 38-10-01B
Potable Water System
N246NV / A320:
How long before a repair has to be completed?

Answer 21

Category C = 10 consecutive calendar days

Question 22

Reference GOM Chapter 9
Aircraft Logbook & Maintenance Procedures :
What is a mechanical irregularity?
What must be done for any mechanical irregularity?

Answer 22

º A mechanical irregularity exists if an aircraft system, instrument, component or part is broken, damaged,
inoperative, or not serving the purpose for which it was designed.
º All mechanical irregularities must be entered into the M300 as a Discrepancy or a Successful Reset (Info
Only).
§ The PIC is responsible to ensure all mechanical irregularities observed by the flight crew are entered
into the M300.
§ The PIC is responsible to ensure all mechanical irregularities are reported to Maintenance Control
(through Dispatch) prior to any subsequent takeoff.

Question 23

Reference GOM Chapter 9
Aircraft Logbook & Maintenance Procedures :
After making an entry in the M300, is it sufficient to contact local maintenance to report the write-up?

Answer 23

NO - The PIC is responsible to ensure all mechanical irregularities are reported to Maintenance Control
(through Dispatch) prior to any subsequent takeoff. Contacting local or line maintenance DOES NOT satisfy
this requirement.

Question 24

Reference GOM Chapter 9
Aircraft Logbook & Maintenance Procedures :
Where can the flight crew find Approved Reset Procedures?

Answer 24

Aircraft specific approved reset procedures are contained in respective aircraft operating manuals and
quick reference handbooks.
º QRH 02.01A
º FCOM PRO-ABN-ABN-RESET

Question 25

Reference GOM Chapter 9
Aircraft Logbook & Maintenance Procedures :
If a flight crew performs a successful system reset per the QRH System Reset Table, what must be done?

Answer 25

º Unless otherwise required by an approved reset procedure, mechanical irregularities that are successfully
reset to a normal operating condition via an approved reset procedure must be entered into the Successful
Reset (Info Only) block of the M300.
º Reset Successful (Info Only) block entries must contain the system or component reset, the procedure
action used to affect the reset, and a statement indicating that the system or component was restored to a normal operating condition. For example, “F/CTL SEC 2 FAULT, Performed ECAM Actions, Reset Successful.”
º Maintenance Control (via Dispatch) must be contacted for all Successful Reset (Info Only) block entries.
Maintenance Control will review the reset history of the system or component to determine whether
Multiple Resets have occurred. Mechanical irregularities that require multiple resets must be entered as an
M300 Discrepancy.
º Successful Reset (Info Only) block entries do not require and will not have a corresponding Corrective
Action block entry.
º The following Reset Successful (Info Only) block information must also be completed: Type of Reset,
Originator Employee Number

Question 26

Reference GOM Chapter 9
Aircraft Logbook & Maintenance Procedures :
If a mechanical irregularity reoccurs after a successful reset of the same component on the same flight segment
or on the previous flight segment (including preflight), what must be done?

Answer 26

º The fault must be entered in the Discrepancy block of the M300.
º A Discrepancy block entry requires an appropriate Corrective Action block entry prior to Takeoff.

Question 27

Reference GOM Chapter 9
Aircraft Logbook & Maintenance Procedures :
If an ECAM message appears (and is successfully reset) during transfer from ground power to APU power, is a
M300 entry required?

Answer 27

Unless otherwise required by an approved reset procedure, faults obviously associated with an electrical
Power Transfer that can be successfully reset to a normal operating condition are not considered to be a
Mechanical Irregularity.
º Power-Transfer Faults successfully reset on sequential flights are not considered Multiple Resets.

Question 28

Reference GOM Chapter 9
Aircraft Logbook & Maintenance Procedures :
If an ECAM message appears momentarily and then self-corrects, is a M300 entry required?

Answer 28

Transient (momentary and self-correcting) faults are not considered Mechanical Irregularity unless the
transient abnormality occurs often enough to prevent the system from serving the purpose for which it was
designed or results in the flight crew performing a rejected takeoff.
§ Transient Faults on sequential flights are not considered Multiple Resets.