_2bf150c9-a343-4964-966e-896d73d61c72 REV 2.1
ALL
This section identifies the systems per ATA classification with its associated MEL items and
1) Item Number and title:
Identifies the system per ATA and its item, it indicates the equipment, systems, components for which dispatch conditions apply. An “if installed” annotation indicates that the listed item is not applicable to all models or configurations. It does not imply that the aircraft may be operated, in accordance with the MEL, with the item removed, unless clearly indicated in the associated Dispatch conditions.
2) Dispatch Condition:
Gives remarks or conditions linked to a MEL dispatch. It indicates the suitable conditions and limitations in the form of placard, maintenance procedures, operational procedures and dispatch conditions as necessary to ensure that an acceptable level of safety is maintained.
3) RI “Rectification Interval” Column:
For each applicable item, the Rectification Interval column indicates the rectification interval category.
Each category is defined according to the following definitions:
Category A : No standard interval is specified, however, items in this category shall be rectified in accordance with the remark stated in the MEL.
Where a time period is specified in calendar days it shall start at 00:01 on the calendar day following the day of discovery. Where a time period is specified in number of flight or flight hours, it shall start at the beginning of the next flight that follows the discovery.
Category B : Items in this category shall be rectified within three (3) consecutive calendar days, excluding the day of discovery.
For example, if it was recorded at 10 a.m. on January 26th, the three-day interval begins at midnight on January 26th, and ends at midnight the January 29th.
Category C : Items in this category shall be rectified within ten (10) consecutive calendar days (240 hours), excluding the day of discovery.
Category D : Items in this category shall be rectified within one hundred and twenty (120) consecutive calendar days, excluding the day of discovery.
Dash Symbol “-” : A dash symbol may appear to redirect to another referenced item which provides the rectification interval category.
Rectification interval extension policy
The operator may use a procedure for the extension of the applicable rectification intervals B, C, D for the same duration as specified in the MEL and according to the National
Authority provided:
- A description of specific duties and responsibilities for controlling extensions is established by the operator and accepted by the National Authority, and
- The operator only grants a one time extension of the applicable rectification interval, - The National Authority is notified of any extension granted within a timescaleand
acceptable to the National Authority, and
- Rectification is accomplished at the earliest opportunity.
When accepted by the National Authority according to the conditions above, the application of the rectification interval policy is not a violation for the MEL to be not less restrictive than the MMEL.
4) NI “Number Installed” Column:
Shows the number of installed equipment, components, systems or functions, it matches with the type-certificated configuration of the aircraft.
A Dash “-” symbol indicates a variable quantity installed on the aircraft.
5) NR “Number Required” Column:
Specifies the minimum quantity of equipment, components, systems or functions which must be operative for a MEL dispatch, under the conditions listed in the dispatch conditions.
A Dash “-” symbol indicates a variable quantity, minimal required for the dispatch of the aircraft.
6) Placard Column (YES / NO):
- YES: The Dispatch Condition may require that an inoperative components to be clearly placarded in the cockpit.
- NO: No Placard is Required.
7) Operational and maintenance Procedures
An inoperative equipment may refer to an operational and/or maintenance procedure (M) to ensure an acceptable level of safety.
It is the operator’s responsibility to ensure that all the (O) and/or (M) refer to an appropriate operational and/or maintenance procedure, or to a procedure established by the operator and accepted by the National Authority. Then the operator must ensure that these procedures are appropriately applied.
Both (O) and (M) identifiers used singularly or in conjunction with each other, require that appropriate procedures be established, published and complied with if flight is accomplished with the item inoperative.
a) “O” Column:
The “YES” in Operational Column “O” identifies an Operational procedure when operating with the associated inoperative item. Operational procedures may require crew actions, limitations, performance penalties or crew awareness information to be taken into account.
These procedures are normally carried out by qualified flight or cabin crew, but may be accomplished by other qualified, approved personnel. However the flight crew must always be informed of the applicable operational procedure prior to each flight under associated MEL item.
When flight situation occurs the operational procedures must always be applied under the associated item (unless its periodicity of application is clearly specified in remarks and conditions).
The operational Procedure is described just after the associated Dispatch Condition of the MEL item and is identified with the same number and title.
b) “M” Column:
The “YES” in Maintenance Column (M) identifies a maintenance procedure to be performed. These procedures are normally carried out by maintenance personnel, but some elementary maintenance tasks may be accomplished by crew members or other qualified, approved personnel. Flight crew can accomplish some of these elementary (m) procedures but it remains the responsibility of the operator and under its national
authority approval.
However it is recommended that maintenance personnel accomplish procedures that require specialized knowledge, skills, or the use of tools and test equipment. The
maintenance procedures should normally be performed once prior to the first flight under the associated item and, if applicable, must be repeated at the interval specified in the Remark.
The maintenance Procedure is published in the MEL maintenance Part (MMP) and is identified with the same number and title.
8) Notes
There are three levels of notes:
- Notes at the level of the item: these notes appear below the item title and before the first dispatch condition of this item. These notes apply to all the dispatch conditions of the item.
- Notes at the level of the dispatch condition: these notes appear at the end of the dispatch condition. These notes apply only to this dispatch condition.
- Notes at the level of the requirement: these notes appear within a proviso. These notes apply only to this requirement.
9) References
References are introduced to assist the Operator in complying with MEL requirements.
However, as indicated in the PREAMBLE, Citilink Indonesia is still responsible for determining the applicable interrelationships and associated requirements . References are used in case of:
- Another source of information must be reviewed and associated restrictions, and/or procedures must be applied (e.g. “Refer to AFM …”).
- Another ATA chapter of the MEL must be reviewed, in order to determine the
applicable item. The rectification interval category the most restrictive must be applied.