A330
Maintenance Airframe; Maintenance Powerplant
Time Pressure; Communication Breakdown; Confusion
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy
General Maintenance Action; General Flight Cancelled / Delayed
Aircraft; Chart Or Publication; Company Policy; Human Factors; MEL; Procedure
A CDL [(Configuration Deviation List)] was applied on an A330 aircraft on the 3-Left (3L) Door Sill plate (CDL-51-021) which we did in accordance with (I/A/W) the CDL Manual. Maintenance Control however insisted per the CDL; that the aircraft be pressurized as part of the CDL. The CDL Manual does not require that to be done and the aircraft took an additional 30 minute delay as a result. The aircraft was on a gate in ZZZ; scheduled for an evening departure. Personnel involved were myself; another Mechanic; the Lead Mechanic; and the 'A' Concourse Supervisor. In reviewing the CDL; we saw no requirement that the aircraft be pressurized as a result of applying this CDL and that this action be documented on an Engineering Report as directed by Maintenance Control. It was our feeling that we were accomplishing a special procedure that Maintenance Control had decided [needed] to be done and not one that the CDL Manual specified. My opinion is that the event occurred as a result of Maintenance Control adding a Special Procedure to the application of a CDL that was not specified and not needed to legally dispatch the aircraft. We disputed the requirement of pressurizing the aircraft after the CDL was applied; and documented this action on a company Engineering Report; but performed this as Maintenance Control insisted it was required for the CDL. We were at the end of our work shift and were focused on getting the airplane out. [Issues involve] Maintenance Control communicating directly with the mechanics about the work to be accomplished and the requirements of a specified CDL and no unnecessary actions being performed.
A Line Mechanic reports that an A330 aircraft was delayed 30 minutes while Maintenance was required to perform an aircraft pressurization check to satisfy a Maintenance Controller's CDL deferral of a damaged Sill plate at Cabin Door 3-Left (3-L). Mechanic noted the CDL did not specify a pressurization check requirement for dispatch.