OM PART B

Question 1

MEL Preamble (B3 3-05)
Can you explain when en how the MEL is applicable

Answer 1

The provisions of the MEL are applicable until the commencement of flight. From engine start onwards, any alert message requires accomplishment of the
appropriate QRH procedure.

Upon completion of the procedure and prior to take-off, the DDPM should be consulted to assess the impact of a malfunction on the flight and dispatchability after
the flight. Any decision to continue a flight following a failure or unserviceability, which becomes apparent after the commencement of flight, must be subject to pilot judgement and good airmanship. This includes, when circumstances permit, performing the associated O procedure. If before take-off an EICAS message is
presented that is marked as ‘NO DISPATCH’ in the EICAS message list, always notify MCC before commencing take-off to discuss further options.
Whenever doubt exists to dispatch with an inoperative item, contact the MCC for technical questions or Fleetcontrol for operational questions.
For dispatch with airframe and/or engine parts missing, a Configuration Deviation List (CDL) is included. The CDL can be found in Section 4 of this manual.
Section 5 of the DDPM lists items not covered in the MEL and CDL that may be missing for dispatch.
Unless specifically permitted, an inoperative item may not be removed from the aircraft.

Question 2

MEL Preamble (B3 3-05)
What time intervals are there in the Rectification interval categories (A/B/C/D & HIL) and when is extension allowed?

Answer 2

A = no standard interval. Conditions stated in the MEL
B = 3 days
C = 10 days
D = 120 days
HIL = not influencing the airworthiness of the aircraft, defect not influencing function of operation of item, deficiencies within allowable maintenance limitations, Configuration deviation list, Special Dispatch Procedure.

An extension may only be granted once for intervals B, C and D, for the same duration as specified in the MEL.

Question 3

Witch surfaced must be protected in case of anti-icing

B1 14.70.4

Answer 3

• wing upper surface and leading edge,
• horizontal stabilizer upper surface and leading edge,
• elevator upper surface,
• vertical stabilizer and rudder (if vertical stabilizer is clean, it does not have to be de-iced),