COSCAP SOUTH ASIA MASTER MINIMUM EQUIPMENT LIST (MMEL) and MINIMUM EQUIPMENT LIST(MEL)

COSCAP SOUTH ASIA

MASTER MINIMUM EQUIPMENT LIST (MMEL)and

MINIMUM EQUIPMENT LIST(MEL)

Introduction

ICAO RequirementsMaster Minimum Equipment ListConfiguration Deviations ListMinimum Equipment ListOperations/Maintenance ManualTraining Requirements

ICAO Requirements

Annex 6, 6.1.2, Attachment G6.1.2 - Operator shall have a

MELApproved by the State of

OperatorEnable the PIC to determine if

continue with unservicibility

ICAO Guidance

Attachment G is guidanceSimilar to the Preamble of MELContinued safe operations with

unserviceabilitiesMEL based on MMEL established

by manufacture in conjunction with authority

ICAO Guidance

Includes multiple failuresAircraft system redundancyMaintain acceptable level of safetyDefined period of timeSound maintenance frameworkControlled program of repair

MMEL

Regulates dispatch of an aircraft with inoperative equipment

Does not encourage operation with inoperative equipment

Continued operation minimized Limitations governing repair intervals

MMEL

Most large aircraft are designed in access of exceed airworthiness requirements

Some equipment is not required for all operations (eg. lights for day)

Passenger convenience itemsItems not included are to be

operative

MMELApproved or modified by authorityRequired level of safety (FAR25) must be

maintainedConsequences of further failureChanges in crew workloadDegradation in crew efficiencyAdverse weather conditions

MMEL

Substantiation to be achieved adjustment of operating limitations transfer of the function reference to other components change in operating procedure change in maintenance procedure

MMEL

Substantiation to be achieved equipment considered optional equipment considered redundant

qualitative safety analysis quantitative analysis

MMEL - Approval

FOEB/JOEB Manufactures, airlines, unions,

CAAs meet Item by item reviewJustification by manufactureOperations and maintenance

procedures reviewed

MMEL - Approval

Foreign MMELMany States issue SupplementMany accept as isFAA create MMEL all US

Operated Categorised MMELs

MMEL Format

PreambleFour column formatLog of RevisionsExplanation of symbolsATA Specification 100 codeConditions in Remarks or Exceptions

column

MMEL Format

Placarding“O” Operational Procedures“M” Maintenance ProceduresPart of justificationProcedures not approved with MMELBoeing - Dispatch Deviation Guide

MMEL Prohibited Items Not to include any item of equipment which, if inoperative, is likely to significantly affect performance of the aircraft unless noted in the AFM and MEL.

No item shall be included in the MMEL which conflicts with the limitations or invalidates the emergency procedures of the AFM or of an airworthiness directive unless the AFM or directive provide otherwise.

The MMEL shall not include any part or structural component of the aircraft which is the subject of the Configuration Deviation List (CDL).

REPAIR INTERVAL CATEGORIES

CATEGORY A Items in this category shall be repaired

within the time interval specified in the “Remarks and Exceptions” column of the operator's approved MEL Whenever the proviso in the “Remarks or Exceptions” column of the MMEL states cycles or flight time, the time interval begins with the next flight. Whenever the time interval is listed as flight days, the time interval begins on the flight day following the day of discovery.


CATEGORY B Items in this category shall be repaired

within three consecutive calendar days, excluding the day of discovery.

CATEGORY C Items in this category shall be repaired

within 10 consecutive calendar days, excluding the day of discovery


CATEGORY D Items in this category shall be repaired within

120 consecutive calendar days, excluding the day of discovery. To be considered for placement in Category D, the item must be of an optional nature, or excess equipment which an operator may, at his/her discretion, deactivate, remove from or install on an aircraft. To be approved for Category D, the item must meet the following criteria: (Continued)


CATEGORY D (Criteria) the absence of the item does not affect crew

workload; the pilots do not rely on the function of that

item on a routine or continuous basis; and, the pilot's training, subsequent habit

patterns and procedures do not rely on the use of that item.

MMEL Revision

FOEB/JOEBLead Airline ConceptDepends on Aircraft AgeManufactures/Airline DrivenAuthority Required Changes

CDL - Configuration Deviation Lists

Amendment to type certificateNot included in MELLimitations Section to Flight

ManualOperation with Missing

Secondary Airframe Engine Parts

Minimum Equipment List

MEL DEFINITION

The MEL permits operation of the aircraft under specified conditions with certain inoperative equipment

The MEL is derived from the MMEL and is applicable to an individual operator.

MEL INTENT

Operation of an aircraft with aircraft equipment inoperative or removed is prohibited unless an operator does so in compliance with an approved MEL

MEL LIMITATION

With the exception of Global Changes, the content

of an operator's approved MEL cannot be less restrictive than the content of the approved MMEL for that aircraft type.

GLOBAL CHANGES

Items that qualify as a GC are generally those items that are required to be installed by a new regulatory requirement, or are MMEL items that are affected by CAA policy decisions..

AUDIT OF OPERATOR MELS

The ‘Authority’ should audit the operator’s conformance to MEL requirements on an ongoing basis, and as part of any company audit.

LEGAL BASIS

ICAO Annex 6

Chapter 66.1.2 - MELAttachment G

ADMINISTRATIVE PROCEDURES

APPROVAL AUTHORITY The authority for MEL

approval should be defined in a states national regulations


INITIAL APPLICATION INFORMATION

When an operator expresses the intent to operate an aircraft eligible to use an MEL, the ‘Authority’ should provide them with: the current requirements of the state; a copy of the states MMEL/MEL Policy; the revision status of the MMEL.


MMEL APPROVAL STATUS The operator must

ensure that they use the latest version of the MMEL to develop their MEL


MMEL ACQUISITION

Approved MMELs may be obtained from:

the ‘Authority’ or the manufacturer


OPERATOR MEL DEVELOPMENT The operator will develop their MEL and

amendments. Must be a joint operations and

maintenance document Based on the current MMEL revision. Approved by senior company official from

Operations and Maintenance prior to the MEL being submitted to the Authority for approval.


SUBSTANTIATIONThe operator must provide

substantiating documents to support their MEL submissions. These documents will provide additional information relating to the operator’s MEL program.

MEL items which do not appear in the MMEL will require substantiation

AVIATION INSPECTOR RESPONSIBILITY

OPERATIONS

The POI is responsible for vetting the operator's MEL with respect to the operations functions and procedures

Both Operations and Airworthiness Inspectors must agree prior to an approval being granted for an operator's MEL application.


AIRWORTHINESSThe Principal Airworthiness Inspector is

responsible for vetting the operator's MEL with respect to the maintenance functions

Both Operations and Airworthiness Inspectors must concur prior to an approval being granted for an operator's MEL application.


MEL APPROVAL TIME Should not be longer than 60 days

•INTERIM APPROVALSnot normally granted , nor should approval be given to use a MMEL as a MEL.


MEL DISTRIBUTIONCopies are required for:each aircraft;Senior Company Official - Maintenance;Senior Company Official -Operations;Dispatch (if applicable);Maintenance Coordinator (if applicable);any other personnel as required;the ‘AUTHORITIES Library or Regional Office

Library.

MEL AMENDMENTS

The operator must review their MEL on a regular basis to ensure compliance with changes to the operation, aircraft or to the Regulations.

A revision to the MMEL will require that the operator review and amend their MEL, as necessary.

The MEL program should be part of the operator's quality assurance program.

CONFORMITY TO THE MMEL


MODIFICATION OF MMELSOperators may request changes to their MEL

. These suggestions for changes, accompanied by appropriate substantiation, should be forwarded to the CAA for assessment.

The Authority may modify their MMEL where appropriate, or

An operator may contact the manufacturer directly with a request to review the MMEL.


MEL CONTENTThe operator's MEL must reflect the current

MMEL limitations unless otherwise authorized by a change in the MMEL. When a revision is issued to a MMEL, the operator's MEL need not be revised if the change is less restrictive than the existing MEL.

Except as noted above, all items installed in an operator's aircraft which are addressed in the most recent approved version of the MMEL, shall be included in the MEL.


ADMINISTRATIVE CONTROL ITEMS Operators may use their MEL as a document

to control items for tracking and information purposes. Conditions apply:MELs may include items not contained in the

MMEL; however,• no relief may be granted unless conditions

and limitations are contained in an approved document other than the MMEL

• may not include items or subsystems of items which are addressed in the MMEL.


PASSENGER CONVENIENCE ITEMS Passenger convenience items may include

items such as galley equipment, entertainment, and

overhead reading lamps. Passenger convenience items do not carry a specific repair interval, and need not be listed in an operator's MEL, if they are not addressed in the MMEL. The exceptions to this rule are: (Continued)


PASSENGER CONVENIENCE ITEMS (Exceptions)

Where passenger convenience items serve a second function, such as movie equipment being used for cabin safety briefings, operators must develop and include operational contingency procedures in case of an equipment malfunction

Where passenger convenience items are part of another aircraft system, for example - the electrical system, procedures must be developed and included in the MEL for deactivating and securing in case of malfunction.


MEL AUDITSWhenever an audit is conducted, the

operator’s MEL shall be reviewed. The review shall ensure that the MEL conforms to current policies and procedures.

Special attention should be given to operating rules that may have been amended since the MEL was last approved. It shall be confirmed that the latest revisions to the MMEL, and any Global Changes - if more restrictive, have been incorporated into the MEL.

MEL DEVELOPMENT PROCEDURES

List of Effective Pages,

Table of Contents,

The MEL Preamble,

Notes and Definitions,

A section for each aircraft system addressed,

The letter of approvalAmendment record

page.

MEL BASIC FORMATThe MEL must include:

Operators must specify the MMEL and any local Authority Supplement revisions and any other documents such as a DDG, used in the development of their MEL


MEL PAGE FORMAT MEL format is at the discretion of the

operator. It is recommended that the MEL page format follow the MMEL page format. The page numbering, and individual MEL items, however, must be in accordance with the ATA 100 code system


LIST OF EFFECTIVE PAGESA List of Effective Pages (LEP) must

be used to ensure that each MEL is up-to-date. It must list the date of the last amendment for each page of the MEL. The Authority will stamp and initial the LEP to indicate the approval status of the contents of the MEL.


TABLE OF CONTENTS The Table of Contents page shall list

the section for each aircraft system utilizing the ATA 100 listing as found in the MMEL.

Pages will be numbered with the ATA system number followed by the item number for that system (e.g., the page following 27-2-1 would be 27-2-2).


MEL PREAMBLE The Preamble provides direction to

company personnel on the philosophy and use of the MEL. The Authority should publish a MMEL preamble for use by an operator. An operator may choose to develop their own preamble but it must contain at least the information contained in the ‘Authorities’ version.


NOTES AND DEFINITIONSNotes and Definitions are required

to allow the user to interpret the MEL properly. Minimum required notes and definitions should be published by the ‘Authority’.

Additions and deletions to the notes and definitions may be applied to the operator's MEL as required.


OPERATING AND MAINTENANCE PROCEDURES Dispatch with inoperative items is often

acceptable only with the creation of special operating or maintenance procedures

Procedures recommended by the aircraft manufacturer can be used but the ultimate responsibility for providing acceptable procedures rests with the operator


OPERATING AND MAINTENANCE PROCEDURES Where the (O) or (M) symbols appear,

an operating or maintenance procedure must be developed which provides clear direction to the crew members and maintenance personnel of the action to be taken. This procedure must be included in the MEL.


OPERATING AND MAINTENANCE PROCEDURES Exception:- when the procedure is

contained in another document available to the flight crew on the flight deck;Aircraft Flight Manual, Aircraft Operating

Manual, Company Operations Manual or Flight Attendant Manual;or

Aircraft Maintenance Manual In these cases, the MEL may refer to a section of the

appropriate document.


OPERATING AND MAINTENANCE PROCEDURES (Cont.)

It is not acceptable to refer to the National

Aviation Regulations

as these are not normallycarried on board (end)


APPROVAL OF OPERATING AND MAINTENANCE PROCEDURES

Manufacturers may choose to produce operating and maintenance procedures such as Dispatch Deviation Procedure Guides,(DDPG), to form part of the MEL. DDGs and other similar documents should not be approved by the authority, nor can they replace the MEL. If the aircraft manufacturer has not published operating or maintenance procedures, the operator must develop appropriate procedures and submit them to the Authority for approval.


OPERATIONS MANUAL PROCEDURES The operator must establish procedures in

the company Operations Manual for the use and guidance of crew members when using the MEL. The procedures must agree with those in the Maintenance Control Manual. The operator may choose to include all procedures/instructions in the MEL itself; in which case the Operations Manual will only be required to reference this document


The maximum time an aircraft may be operated between the deferral of an inoperative item and its repair will be specified in the MEL, where the MMEL has been categorized. Passenger convenience items such as reading lights and entertainment units must include a category. Most of these items will be a “D” category provided any (M) procedure (in the case of electrically supplied items) is applied.


CATEGORY A Items in this category shall be repaired

within the time interval specified in the “Remarks and Exceptions” column of the operator's approved MEL Whenever the proviso in the “Remarks or Exceptions” column of the MMEL states cycles or flight time, the time interval begins with the next flight. Whenever the time interval is listed as flight days, the time interval begins on the flight day following the day of discovery.


CATEGORY B Items in this category shall be repaired

within three consecutive calendar days, excluding the day of discovery.

CATEGORY C Items in this category shall be repaired



CATEGORY D Items in this category shall be repaired


DEFERRAL OF ITEMS

REQUIREMENTS Procedures for the deferral of

MEL items will be included in the operator's Maintenance Control Manual (MCM) The operator must ensure that the Operations Manual and the MEL reference the these procedures in the MCM, or duplicates the same.

DEFERRAL OF ITEMS

REQUIREMENTS These procedures comprise a method for:

deferral and/or rectification of inoperative equipment;

placarding requirements as per the MEL; dispatching of aircraft with deferred MEL item(s); a deferral system; controlling categorized times; and the training of company personnel who are

responsible for MEL compliance procedures.

DEFERRAL OF ITEMS

REVIEW OF DEFERRED ITEMS Maintenance and Operations

must periodically review the deferred items, in order to ensure that any accumulation of deferred items neither conflict with each other nor present an unacceptable increase in flight or cabin crew workload. (Cont.)

DEFERRAL OF ITEMS

REVIEW OF DEFERRED ITEMS Notwithstanding the categorization of

item repair intervals, it should be the aim of each MEL document holder to ensure that inoperative items are repaired as quickly as possible.

It is the policy of some authorities that optional inoperative equipment should be repaired or removed from an aircraft..

DEFERRAL OF ITEMS

PLACARDING All inoperative items must be placarded to

inform crew members of equipment condition.

wording and location is normally to be determined by the operator.

The operator shall provide the capability and instructions to the flight crew to ensure that the placard is in place prior to the aircraft being dispatched.

DISPATCH

"Dispatch" for the purpose of the MEL/MMEL refers to the moment the airplane starts its takeoff roll. In the case of a helicopter, it refers to the moment the helicopter commences air or ground taxi. The MEL is approved on the basis that equipment will be operative for takeoff unless the appropriate MEL procedures have been carried out. (Cont.)

DISPATCH

The MEL shall include procedures to deal with any failures which occur between the start of taxi or push back and takeoff brake release.

After takeoff commences, no MEL action is required, until the completion of the next landing.

DISPATCH

OPERATIONAL AND MAINTENANCE ITEMS

Any item of equipment in the MEL, which when inoperative would require an operating or maintenance procedure to ensure the required level of safety, shall be so identified in the "remarks" or "exceptions" column of the MEL. This will normally be "O" for an operating procedure, and/or "M" for a maintenance procedure.

DISPATCH

O ITEMS

• 1.Aircraft with inoperative equipment requiring an operating procedure may be returned to service following completion of the required MEL procedure for deferral.

• 2.Operating procedures are normally carried out by qualified flight or cabin crew.

DISPATCH

M Items1.Aircraft with inoperative equipment requiring

a maintenance procedure may be returned to service following completion of the required MEL procedure for deferral.

2.Maintenance procedures are normally accomplished by maintenance personnel, but some elementary maintenance tasks may be carried out by crew members if they have been specifically trained in the procedure.

TRAINING

TRAINING PROGRAM GROUND PERSONNEL

Operators shall develop a MEL training program for ground personnel

Should include those sections of the MCM/operations manual procedures dealing with the use of the MEL, placarding, deferral procedures, dispatching, and other MEL related procedures.

TRAINING

TRAINING PROGRAM CREW MEMBERSOperators shall provide crew members with

MEL training & recurrent trainingShall be detailed in their Company

Operations Manual. training will include the purpose and use of a

MEL, company MEL procedures, elementary maintenance procedures, and PIC responsibility. Crew members include pilots, flight engineers, and flight attendants.

MELS FOR LEASED FOREIGN AIRCRAFT

The MEL for a particular leased aircraft must not be less restrictive than the locally approved MMEL and must be approved by the local authority. The country of registration of the leased aircraft may require that their aircraft be operated in accordance with their approved MEL, in which case any less restrictive changes to this MEL must be approved by the foreign authority.(Cont.)

MELS FOR LEASED FOREIGN AIRCRAFT

The local ‘Authority’ may require more restrictive changes to the MEL because of local regulations. It is the responsibility of the local lessee to determine the requirements of the foreign and ‘national’ authority for the use of a MEL on the leased aircraft.

MELS FOR FOREIGN LEASED (LOCALLY) REGISTERED AIRCRAFT

Some authorities review each lease and approves or accepts the use of a MEL on such aircraft based on whether a bilateral airworthiness agreement or a technical arrangement exists between them and the foreign regulatory authority and it has been determined that the MMEL/MEL procedures are acceptable.

If there is no agreement between the ‘authority’ and the foreign authority a review of the foreign operator's MEL is conducted to determine that it is consistent with the locally approved MMEL

EXAMPLES OF THE DHC6 MMEL

CONVERTED INTO AN MEL

------------------------------------------------------------------------------------------| TRANSPORT CANADA || MASTER MINIMUM EQUIPMENT LIST ||----------------------------------------------------------------------------------------||AIRCRAFT: |REVISION NO: 07 |PAGE: || de Havilland DHC-6, Series 100, 200 & 300 |DATE: Sep. 18, 1998 |23-1 of 2 || ||----------------------------------------------------------------------------------------|| 1. | 2. NUMBER INSTALLED || SYSTEM & RIC | ----------------------------------------------------------|| SEQUENCE | | 3. NUMBER REQUIRED FOR DISPATCH || NUMBERS | | ----------------------------------------------------||--------------------------| | | 4. REMARKS OR EXCEPTIONS ||23 COMMUNICATIONS | | | || | | | ||1 Communications D |- |- | Any in excess of those required by || Systems (VHF, | | | regulation and not powered by a standby or || HF, UHF) | | | emergency bus may be inoperative. || | | | ||2 Passenger B |1 |0 |(O) May be inoperative provided: || Address System | | | a) alternate procedures are established || | | | and used, and || | | | b) required safety briefings are given to || | | | passengers using a means that will || | | | ensure the briefings are audible to || | | | each passenger. || All cargo D |1 |0 | || operation. | | | ||3 Static C |- |- | One may be missing from the rudder and one || Discharge Wicks | | | from the right elevator. || | | | ||4 Cockpit Speakers D |- |0 | May be inoperative provided headsets are ||*** | | | installed and used by each person on || | | | flight deck duty. || | | | ||5 Headsets and D |- |- | Only those in excess of those required for || Microphones | | | each flight deck crew member may be || | | | inoperative. || | | | ||6 Pre-recorded D |- |0 |(O) Provided alternate procedures are || Passenger | | | established and used. ||*** Announcement | | | || System | | | || | | | || All cargo D |1 |0 | || operation. | | | || | | | ||7 Audio Selector D |2 |- | Co-pilot's panel may be inoperative for || Panels | | | single pilot operation provided the || | | | pilot's use of all avionics equipment is || | | | not affected. ||8 Cockpit Voice | | | ||*** Recorder (CVR) | | | | || | | | || If CVR and FDR A |1 |0 | Provided: | || required by | | | a) the Flight Data Recorder is | || regulations. | | | operative, and | || | | | b) repairs are made within three | || | | | flight days. | |------------------------------------------------------------------------------------------

4. REMARKS OR EXCEPTIONS |23 COMMUNICATIONS | | | | | | | |1 VHF Comm Systems B | 2 | 1 | (o)Number two VHF may be unserviceable | | | | provided number one VHF and the HF is | | | | operative. |2 HF Comm Systems D | 1 | 0 | May be unserviceable provided both | | | |VHF are operative and VHF communications | | | |can be maintained for the duration of the

| | |flight

MMEL - MEL EXAMPLE

------------------------------------------------------------------------------------------| TRANSPORT CANADA || MASTER MINIMUM EQUIPMENT LIST ||----------------------------------------------------------------------------------------||AIRCRAFT: |REVISION NO: 06 |PAGE: || de Havilland DHC-6, Series 100, 200 & 300 | | || |DATE: Dec. 05, 1997 |22-1 of 1 ||----------------------------------------------------------------------------------------|| 1. | 2. NUMBER INSTALLED || SYSTEM & RIC | ----------------------------------------------------------|| SEQUENCE | | 3. NUMBER REQUIRED FOR DISPATCH || NUMBERS | | --------------------------------------------------- ||--------------------------| | | 4. REMARKS OR EXCEPTIONS ||22 AUTOFLIGHT | | | || | | | ||1 Autopilot C |1 |0 |(M) Provided: ||*** | | | || | | | a) the controls are confirmed free, and || | | | || | | | b) the system is deactivated and || | | | secured. || | | | ||| D |1 |0 | Provided routine procedures do not require || | | | its use. || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | |------------------------------------------------------------------------------------------

|----------------------------------------------------------------------------------------|| 1. | 2. NUMBER INSTALLED || SYSTEM & RIC | ----------------------------------------------------------|| SEQUENCE | | 3. NUMBER REQUIRED FOR DISPATCH || NUMBERS | | --------------------------------------------------- ||--------------------------| | | 4. REMARKS OR EXCEPTIONS ||22 AUTOFLIGHT | | | || | | | ||1 Autopilot C |1 |0 |(M)(O) Provided: || | | | a) a qualified captain and co-pilot occupy || | | | the pilot positions, and two crew | | | | operational procedures are available. || | | | b) the flight controls are confirmed free, || | | | c) the system is deactivated and || | | | secured. || | | | |

MMEL - MEL EXAMPLE

------------------------------------------------------------------------------------------| FLYRITE AIRLINES || R MINIMUM EQUIPMENT LIST ||----------------------------------------------------------------------------------------||AIRCRAFT: |REVISION NO: 07 |PAGE: || de Havilland DHC-6, Series 100, 200 | | || |DATE: Oct. 18, 1998 |24-1 of 1 ||----------------------------------------------------------------------------------------|| 1. | 2. NUMBER INSTALLED || SYSTEM & RIC | ----------------------------------------------------------|| SEQUENCE | | 3. NUMBER REQUIRED FOR DISPATCH || NUMBERS | | ----------------------------------------------------||--------------------------| | | 4. REMARKS OR EXCEPTIONS ||24 ELECTRICAL POWER | | | || | | | ||1 L GENERATOR and B |2 |1 |(O) Provided the corresponding loadmeter || R GENERATOR | | | operates normally. || Caution Lights | | | || | | | ||2 A.C. Inverters B |2 |1 | One may be inoperative for day VMC. || | | | || B |2 |1 |(M) One may be inoperative for day or night || | | | provided flight instruments do not require || | | | A.C. power. || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | || | | | |

MEL

NOTE, The other equipment listed on the MMEL is not fitted to Flyrite Aircraft

DDGMEL 22-1 AUTOPILOT - MAINTENANCE PROCEDURES

The Collins DHC6 autopilot system operates the control system via electrically actuated capstans which are attached to the main flying control cables by bridal cables. The capstans are located in the aft fuselage and center wing above the cabin lining.Deactivation Procedures:•Pull and tag the A/P CB located on the CB panel behind the captains head,•Remove the capstan bridal cables from the three A/P capstans and control cables,•Check all flying controls for full & free movement. (End)

Master Minimum Equipment List Definitions


1. Systems Definitions: Systems numbers are based on the Air Transport Association (ATA) Specification Number 100 and items are numbered sequentially.

a)"Item" (Column 1) means the equipment, system, component, or function listed in the "Item" column.


b) "Number Installed" (Column 2) is the number (quantity) of items normally installed in the aircraft. This number represents the aircraft configuration considered in developing this MMEL. Should the number be a variable (e.g., passenger cabin items) a number is not required.


"***" symbol in Column 1 indicates an item which is not required by regulation but which may have been installed on some models of aircraft covered by this MMEL. This item may be included on the operator's MEL if it has been installed on one or more of the operator's aircraft. The symbol shall not used in the operator's MEL. The "***" symbol may be considered equivalent to the term “if installed”.


c) "Number required for dispatch" (Column 3) is the minimum number (quantity) of items required for operation provided the conditions specified in Column 4 are met.Note:Where the MMEL shows a variable number required for dispatch, the MEL must reflect the actual number required for dispatch or an alternate means of configuration control approved by the Authority.


d) "Remarks or Exceptions" (Column 4) in this column includes a statement either prohibiting or permitting operation with a specific number of items inoperative, provisos (conditions and limitations) for such operation, and appropriate notes.e) A "vertical bar" (change bar) in the margin indicates a change, addition or deletion in the adjacent text for the current revision of that page only.


g) “Master Minimum Equipment List” means a document that establishes the aircraft equipment allowed to be inoperative under conditions specified therein for a specific type of aircraft.

h) “Minimum Equipment List” means an approved document that authorizes an operator to dispatch an aircraft with aircraft equipment inoperative under the conditions specified therein.

Master Minimum Equipment List Definitions 2. "Administrative Control

Items" means an item listed by the operator in the MEL for tracking and informational purposes. It may be added to an operator's MEL provided no relief is granted, or provided conditions and limitations are contained in an approved document such as the SRM. If relief other than that granted by an approved document is sought for an administrative control item, a request must be submitted to the Authority. If the request results in review and approval, the item becomes an MMEL item rather than an administrative control item.


"Airplane/Rotorcraft Flight Manual" is the document required for type certification and approved by the Authority. The approved AFM/RFM for the specific aircraft is listed on the applicable Type Certification Data Sheet.

4. "Alphabetical symbol" in Column 4 indicates a proviso (condition or limitation) that must be complied with for operation with the listed item inoperative.


5. "As Required by Regulation", "As required by FAR", and other similar statements mean that the listed item is subject to certain provisions (restrictive or permissive) expressed in such regulations as, the Federal Aviation Regulations or the Airworthiness Manual etc. Unless the MMEL provides otherwise, the items specified by these requirements must be operative.


6. "Deleted" in the remarks column after a sequence item indicates that the item was previously listed but is now required to be operative if installed in the aircraft.

7. "Deactivated and Secured" means that the specified component must be put into an acceptable condition for safe flight. An acceptable method of deactivating and securing will be established by the operator for inclusion in his/her MEL.


8. "Day of discovery" is the calendar day an equipment/instrument malfunction was discovered. This day is excluded from the calendar days or flight days specified in the MMEL for the repair of an inoperative item of equipment, and is applicable to all MMEL items in categories A,B,C, and D.


9. "Engine Indicating Crew Alerting System (EICAS), Electronic Centralized Aircraft Monitoring System (ECAM) or similar systems" that provide electronic messages refer to a system capable of providing different priority levels of systems information messages (e.g., Warning, Caution, Advisory, Status and Maintenance). An airplane discrepancy message may or may not affect dispatchability Refer to the specific MMEL for the aircraft type.


10. "Excess Items" means those items installed that are excess to the requirements

11. "ETOPS" refers to extended range operations of a two-engine airplane which has a type design approval for ER operations and complies with the provisions of the applicable national requirements.


12. "Federal Aviation Regulations (FARs)" means the applicable portions of the Federal Aviation Act and Federal Aviation Regulations.

13. "Flight Day" means a 24 hour period (e.g. from midnight to midnight) - either Universal Coordinated Time (UCT) or local time, as established by the operator, during which at least one flight is initiated for the affected aircraft.


14. "Icing Conditions" means an atmospheric environment that may cause ice to form on the aircraft or in the engine(s).

15. "Inoperative" means a system and/or component malfunction to the extent that it does not accomplish its intended purpose and/or is not consistently functioning normally within its approved operating limit(s) or tolerance(s).


16. "Inoperative components of an inoperative system" Inoperative items which are components of a system which is inoperative are usually considered components directly associated with and having no other function than to support that system. (Warning/caution systems associated with the inoperative system must be operative unless relief is specifically authorized per the MMEL).

Master Minimum Equipment List Definitions17. "M" symbol indicates a requirement for a specific

maintenance procedure which must be accomplished prior to operation with the listed item inoperative. Normally these procedures are accomplished by maintenance personnel; however, other personnel may be qualified and authorized to perform certain functions. Procedures requiring specialized knowledge or skill, or requiring the use of tools or test equipment must be accomplished by maintenance personnel. Appropriate procedures are required to be published as part of the operator's manual or MEL.


19. “Maintenance Instruction” Indicates maintenance instructions that must be accomplished prior to operation with the listed item inoperative, as per "(M)" procedure above.20. "Notes" Column 4 provides additional information for crewmember or maintenance consideration. Notes are used to identify applicable material which is intended to assist with compliance, but do not relieve the operator of the responsibility for compliance with all applicable requirements. Notes are not a part of the provisos.


21. "O" symbol indicates a requirement for a specific operations procedure which must be accomplished in planning for and/or operating with the listed item inoperative. Normally these procedures are accomplished by a crew member. Appropriate procedures are required to be published as a part of the operator's manual or MEL.


22. “Operating Instruction” Indicates operating instructions that must be accomplished prior to operation with the listed item inoperative, as per "(O)" procedure above.

23. "Passenger Convenience Items" means those items related to passenger convenience, comfort or entertainment such as, but not limited to, galley equipment, movie equipment, ash trays, stereo equipment, overhead reading lamps, etc.


24. "Visual Flight Rules" (VFR) is as defined in the regulations

25. "Placarding" Each inoperative item must be placarded to inform and remind the crewmembers and maintenance personnel of the equipment condition.


26. "_" symbol in Column 2 and/or Column 3 indicates a variable number (quantity) of the item installed.

Note:Where the MMEL shows a variable number installed, the MEL must reflect the actual number installed or an alternate means of configuration control approved by the Authority.


27. "Visual Meteorological Conditions" (VMC) means the atmospheric environment is such that would allow a flight to proceed under the Visual Fight Rules applicable to the flight. This does not preclude operating under Instrument Flight Rules.

28. "Visible Moisture" means an atmospheric environment containing water in any form that can be seen in natural or artificial light; for example, clouds, fog, rain, sleet, hail, or snow.

Documents

COSCAP SOUTH ASIA MASTER MINIMUM EQUIPMENT LIST (MMEL) and MINIMUM EQUIPMENT LIST(MEL)