A310 AIRWORTHINESS LIMITATIONS SECTION 

REVISION: 00 

ALS Part 3 

- 

Certification Maintenance 

Requirements 

(CMR)

© AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. 

This document and all information contained herein is the sole property of AIRBUS SAS. No 

intellectual property rights are granted by the delivery of this document or the disclosure of its 

content. This document shall not be reproduced or disclosed to a third party (except for the 

purposes of performing the tasks described hereunder and provided that any recipient of such 

document shall comply with the conditions herein) without the express written consent of AIRBUS 

SAS. This document and its content shall not be used for any purpose other than that for which it is 

supplied. 
A310 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

LIST OF EFFECTIVE PAGES

PART MVT PAGE ISSUE PART MVT PAGE ISSUE

ISSUE: NOV 30/12 ALS PART 3 PAGE: 1-LEP 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document.

1 N 1-LEP NOV 30/12 

1 N 1-TOC NOV 30/12 

1 N 1-ROR NOV 30/12 

1 N 2-ROR NOV 30/12 

1 N 3-ROR NOV 30/12 

3-0 N 1 NOV 30/12 

3-0 N 2 NOV 30/12 

3-0 N 3 NOV 30/12 

3-0 N 4 NOV 30/12 

3-0 N 5 NOV 30/12 

3-0 N 6 NOV 30/12 

3-0 N 7 NOV 30/12 

3-1 N 1 NOV 30/12 

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3-1 N 4 NOV 30/12 

3-1 N 5 NOV 30/12 

3-1 N 6 NOV 30/12 

3-1 N 7 NOV 30/12 

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A310 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

TABLE OF CONTENTS

SUBJECT PART

ISSUE: NOV 30/12 ALS PART 3 PAGE: 1-TOC 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. 

RECORD OF REVISIONS ROR 

INTRODUCTION 3-0 

CMR TASKS 3-1 
A310 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

RECORD OF REVISIONS

ISSUE: NOV 30/12 ALS PART 3 PAGE: 1-ROR 

EASA APPROVED 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document 

The European Aviation Safety Agency (EASA) Certification Directorate approves the 

ALS Part 3. Variations must also be approved (unless justified in accordance with a 

procedure stated herein). 

 

REVISION 

NUMBER SUB-PARTS APPROVED BY 

EASA EASA AD INSERTION IN MAINT. PROG. 

 00 ROR 

3-1 NOV 30/12 

Note: The ALS Part 3 is covered by the Certification Document 00X0500M093/M41. 

Revision 00 is approved by EASA under reference 10042424. 

REVISION 00 COMPLIANCE TIME:

1. Except as stated in paragraph 3. of this Record Of Revisions (ROR), it is mandatory to 

comply with the maintenance requirements and airworthiness limitations defined in the subpart 3-1 of the A310 ALS Part 3 revision 00 from 30-Nov-2013. 

2. From 30-Nov-2012 to 29-Nov-2013, it is mandatory to comply with the maintenance 

requirements and airworthiness limitations defined in, either: 

− The CMR Document at issue 12, except as stated in paragraph 3. of this ROR, 

or, 

− The sub-part 3-1 of the A310 ALS Part 3 at revision 00. 

3. It is mandatory to comply with the following maintenance requirements defined in the subpart 

3-1 of the A310 ALS Part 3 revision 00: 

3.1. First accomplishment of CMR task 213000-00001-1-C must be carried out 

• for A310 aircraft POST-MOD 03881 having accumulated less than 40000 FH, no 

later than the aircraft accumulating 40000 FH since initial entry into service (Credit 

may be taken for the accomplishment of MRBR tasks 21.30.00/07 and 21.30.00/08 

to claim compliance with this CMR task when the MRBR tasks are performed 

within the airworthiness limitations stated above), 

• for A310 aircraft POST-MOD 03881 having accumulated more than 40000 FH with 

the record of ASM task 213115-04-1 (revision 01 of A310 ALS Part 4, sub-part 4-

3(a)) or MRBR tasks 21.30.00/07 and 21.30.00/08, no later than the aircraft 

accumulating 14000 FH since last accomplishment of ASM task 213115-04-1 

(revision 01 of A310 ALS Part 4, sub-part 4-3(a)) or MRBR tasks 21.30.00/07 and 

21.30.00/08, whichever occurs the latest, 
A310 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

RECORD OF REVISIONS

ISSUE: NOV 30/12 ALS PART 3 PAGE: 2-ROR 

EASA APPROVED 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document 

• for A310 aircraft POST-MOD 03881 having accumulated more than 40000 FH 

without the record of ASM task 213115-04-1 (revision 01 of A310 ALS Part 4, subpart 4-3(a)) or MRBR tasks 21.30.00/07 and 21.30.00/08, within 3 months from 30-

Nov-2012. 

3.2. First accomplishment of CMR task 222000-00002-1-C must be carried out no later than 

the aircraft accumulating 85000 FH since initial entry into service or within 3 Months from 

30-Nov-2012, whichever occurs the latest. Credit can be taken from last accomplishment 

of the MRBR task 22.20.00/03 to claim compliance with this CMR task when the MRBR 

task is performed within the airworthiness limitations stated above. 

3.3. First accomplishment of CMR task 222000-00003-1-C must be carried out no later than 

the aircraft accumulating 85000 FH since initial entry into service or within 3 Months from 

30-Nov-2012, whichever occurs the latest. Credit can be taken from last accomplishment 

of the MRBR task 22.20.00/04 to claim compliance with this CMR task when the MRBR 

task is performed within the airworthiness limitations stated above. 

3.4. First accomplishment of CMR task 222000-00004-1-C must be carried out no later than 

the aircraft accumulating 85000 FH since initial entry into service or within 3 Months from 

30-Nov-2012, whichever occurs the latest. Credit can be taken from last accomplishment 

of the MRBR task 22.20.00/05 to claim compliance with this CMR task when the MRBR 

task is performed within the airworthiness limitations stated above. 

3.5. First accomplishment of CMR task 242000-00001-1-C must be carried out no later than 

the aircraft accumulating 4000 FH since initial entry into service or the last 

accomplishment of MRB task 24.20.00/02 or within 3 Months from 30-Nov-2012, 

whichever occurs the latest. 

3.6. First accomplishment of CMR task 273300-00001-1-C must be carried out no later than 

the aircraft accumulating 85000 FH since initial entry into service or within 3 Months from 

30-Nov-2012, whichever occurs the latest. 

3.7. First accomplishment of CMR task 323000-00002-1-C must be carried out no later than 

the aircraft accumulating 16000 FH since initial entry into service or the last 

accomplishment of MRBR task 32.30.00/10 or within 3 Months from 30-Nov-2012, 

whichever occurs the latest. 

3.8. First accomplishment of CMR task 323000-00003-1-C must be carried out no later than 

the aircraft accumulating 85000 FH since initial entry into service or within 3 Months from 

30-Nov-2012, whichever occurs the latest. Credit can be taken from last accomplishment 

of the MRBR task 32.30.00/12 to claim compliance with this CMR task when the MRBR 

task is performed within the airworthiness limitations stated above. 
A310 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

RECORD OF REVISIONS

ISSUE: NOV 30/12 ALS PART 3 PAGE: 3-ROR 

EASA APPROVED 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document 

3.9. First accomplishment of CMR task 323000-00004-1-C must be carried out no later than 

the aircraft accumulating 85000 FH since initial entry into service or within 3 Months from 

30-Nov-2012, whichever occurs the latest. Credit can be taken from last accomplishment 

of the MRBR task 32.30.00/08 to claim compliance with this CMR task when the MRBR 

task is performed within the airworthiness limitations stated above. 

4. For tasks where the interval is changed the next accomplishment should be determined from 

previous accomplishment date. 
A310 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: NOV 30/12 ALS PART 3-0 PAGE: 1 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. 

Sub-part 3-0 INTRODUCTION

From revision 13 and on, the content of 

A310 Certification Maintenance Requirements (CMR) Document 

(Referenced AI/ST5/849/85) 

applicable to A310 models, has been transferred to the 

A310 Airworthiness Limitations Section (ALS) 

Part 3 

Certification Maintenance Requirements (CMR) 

This change is part of a process to provide Operators and Maintenance, Repair and Overhaul 

Organizations (MRO) with a series of stand-alone documents in a location dedicated to the 

limitations. 

The data provided under ALS Part 3 has been established with the following rules: 

1. SCOPE

Though not addressed by the paragraph H25.4 of Federal Aviation Regulations (FAR) 25 

appendix H, CMRs may be considered as the systems equivalent to the structural 

Airworthiness Limitation Items. For this reason, it is considered appropriate to identify them as 

part of the ALS. This document constitutes the ALS Part 3 - Certification Maintenance 

Requirements. 

Compliance with the requirements stated in this document is mandatory. No person 

may operate an aircraft to which an ALS applies except in accordance with the 

requirements of that ALS, unless otherwise agreed with the Authority of the State of 

aircraft registry. 

This document is applicable from first delivery of an aircraft configuration into an 

Operator’s fleet. The starting time for CMR task intervals are defined in paragraph 7 of 

this sub-section. Possible interval escalations must be justified in accordance with the 

procedure given in paragraph 6 of this sub-section. If a more restrictive CMR is issued 

on an aircraft configuration already in service, the requirement for existing Operators 

to follow the revised ALS Part 3 will normally be mandated by Airworthiness Directive 

(AD). 

Non-compliance could suspend the validity of the Airworthiness Certificate. 

Airworthiness Directives dedicated to specific concerns may override the specific 

requirement(s) given in this document. 

The identification of CMR tasks in no way diminishes the importance of non-CMR tasks and 

changes to these are subject to normal practices and procedures agreed between the 

Operator and the Authority of the State of aircraft registry. 
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2. APPLICABILITY 

The applicability of this ALS Part 3 revision is restricted to the aircraft types, series and 

models listed in the table below: 

Aircraft type Aircraft series Aircraft models 

A310 

A310-200 

A310-203 

A310-204 

A310-221 

A310-222 

A310-200C A310-203C 

A310-300 

A310-304 

A310-308 

A310-322 

A310-324 

A310-325 

Note: The engine Time Limits and Maintenance Checks are not included in this manual: 

refer to the relevant Engine Manufacturer Chapter 05 manual. 

The CMRs contained in the ALS Part 3 are valid up to the following operational life 

applicable to A310 systems installations: 

Aircraft series Aircraft models Flight Hours (FH) Flight Cycles (FC) 

A310-200 

A310-203 85000 FH 40000 FC 

A310-204 

A310-221 116000 FH 45000 FC 

A310-222 

A310-200C A310-203C 85000 FH 40000 FC 

A310-300 

A310-304 

116000 FH 45000 FC 

A310-308 

A310-322 

A310-324 

A310-325 

3. MODIFICATIONS/REPAIRS NOT DEVELOPED UNDER AIRBUS DOA CERTIFICATE 

EASA. 21J.031

If an aircraft/ a sub-assembly/a component/an item has a modification or repair embodied that 

has not been developed under the Design Organization Approval (DOA) Certificate EASA. 

21J. 031 (e.g. under a Supplemental Type Certificate) and which affects the content of the 

ALS Part 3, the Operator is responsible for obtaining approval by the relevant Airworthiness 

Authority for any necessary adaptations of the airworthiness limitations. 

When such an aircraft/a sub-assembly/a component/an item is transferred from one 

Owner/Operator to another, the associated approvals and documents indicating the 

necessary adaptations of airworthiness limitations must be transferred as well. 
A310 AIRWORTHINESS LIMITATIONS SECTION 

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©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. 

4. ALTERNATIVE METHODS OF COMPLIANCE

Limitations of the ALS Part 3 may be negated by instructions given in an Alternative Method 

Of Compliance (AMOC). When limitations evolve in a revision of the ALS Part 3 subsequent 

to the issuance date of the AMOC, Operators are requested to contact Airbus for guidance. 

It is Operator’s responsibility to refer to the applicable limitations. 

5. CRITERIA FOR IDENTIFICATION

CMRs are tasks arising from the Type Certification process, which are associated with the 

most significant failure conditions. These have been shown to be necessary either by System 

Safety Assessment (e.g. FAR 25.1309 compliance) or, in a minority of cases, by engineering 

judgement. These requirements are allocated to one of two categories (identified as One Star 

or Two Star) in accordance with the EASA agreed methodology. 

Tasks associated with the following criteria are not identified as CMRs: 

− Tasks associated with qualitative assessment (unless specifically requested by EASA), 

− Tasks for which the maximum acceptable interval is in excess of the operational life, 

− Tasks normally accomplished by the flight crew, 

− Tasks considered being routine state of the art maintenance activity. For these, the 

safety reason for performing the task is considered to be immediately evident to the 

Operator and the Authority of the State of aircraft registry. 

6. HANDLING OF CERTIFICATION MAINTENANCE REQUIREMENTS

A. One Star CMRs (*) 

One Star CMRs specified in the ALS Part 3 are mandatory tasks and cannot be changed 

or deleted without the concurrence of the Primary Certification Authority (EASA). 

One Star CMR task intervals quoted in ALS Part 3 are absolute limitations and cannot be 

escalated without the concurrence of the Primary Certification Authority (EASA). 

B. Two Star CMRs (**) 

Two Star CMRs specified in the ALS Part 3 are mandatory tasks and cannot be changed 

or deleted without the concurrence of the Primary Certification Authority (EASA). 

Two Star CMR task intervals may be adjusted in accordance with an Operator's 

approved escalation practices or an approved reliability program, but the task content 

may not be changed or deleted without prior Primary Certification Authority (EASA) 

approval. 

This statement has been agreed on the basis that Operators with approved escalation 

practices or an approved reliability program make adjustments to their maintenance 

programs based on data collection and analytical techniques. It has been demonstrated 

that the use of such methods to manage a maintenance program does not give rise to 

undue escalation. 
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©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. 

7. STARTING TIME FOR CMR INTERVAL

This paragraph provides general rules related to the starting time to be considered for CMR 

interval counting according to the different usage parameters. 

For CMR tasks whose interval is given in Calendar time, the starting time may be considered 

as the date of Transfer of Title to the first Operator of the aircraft, unless otherwise stated in 

the delivery documentation of the dedicated aircraft. 

For CMR tasks whose interval is given in Flight Hours (FH), the starting time may be 

considered as the date of Transfer of Title to the first Operator of the aircraft, unless otherwise 

stated in the delivery documentation of the dedicated aircraft. 

Considering the very low number of Flight Hours performed between first flight and delivery, 

and the methodology used to define CMR task intervals, EASA agree to consider the date of 

delivery of the aircraft as the starting time for CMR tasks whose intervals are given in Flight 

Hours. 

For CMR tasks whose interval is given in Flight Cycles (FC), the starting time to be 

considered is the date of the aircraft first flight, unless otherwise stated in the delivery 

documentation of the dedicated aircraft. 

8. DEFINITIONS

Calendar time (Cal.): Thresholds/intervals in Years (YE), Months (MO) etc... 

Flight Cycle (FC): A complete take-off and landing sequence. 

Flight Hour (FH): The accumulated time intervals between “wheels-off” and “wheelson”. 

Interval: The period expressed in usage parameters like FH and/or FC 

and/or Calendar time between successive accomplishments of a 

specific task. 

Visual check: Observation to determine that an item is fulfilling its intended 

purpose. It is a failure finding task and does not require 

quantitative tolerances. 

Operational Check: A qualitative check to determine that an item is fulfilling its 

intended purpose. It is a failure-finding task and does not require 

quantitative tolerances. 

Functional Check: A quantitative check to determine if one or more functions of an 

item performs within specified limits. 

Detailed lnspection: An intensive examination of a specific item, installation or 

assembly to detect damage, failure or irregularity. Available 

lighting is normally supplemented with a direct source of good 

lighting at an intensity deemed appropriate. Inspection aids such 
A310 AIRWORTHINESS LIMITATIONS SECTION 

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©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. 

as mirrors, magnifying lenses, etc. may be necessary. Surface 

cleaning and elaborate access procedures may be required. 

First flight: Unless otherwise stated, the use of this term in the ALS Part 3 

implies that the life accumulated before the aircraft delivery 

date/transfer of title date (e.g. as a result of test flights) must be 

taken into account. 

9. EXCEPTIONAL SHORT-TERM EXTENSIONS

Since CMR intervals are based on statistical averages and reliability rates, an exceptional 

short-term extension for a specific CMR interval may be made on one aircraft for a limited 

period of time without jeopardising safety. 

The term 'exceptional short-term extension' is defined as an increase in a CMR interval that 

may be needed to cover an uncontrollable or unexpected situation. Repeated use of such 

extensions, either on the same aircraft or on similar aircraft in the Operator's fleet, should 

not be used as a substitute for good management practices. Short-term extensions must 

not be used for fleet CMR escalation. 

Unless noted adjacent to the task, for all CMRs (One Star and Two Star) identified in this 

ALS Part 3, it has been accepted by the Primary Certification Office (EASA) that short-term 

extensions up to the following maximum values may be granted without consultation with 

that office. Requests for extensions in excess of these values must be submitted with full 

justification to the Primary Certification Office (EASA) such that approval, if granted, can be 

given prior to their use. 

A. CMR’s controlled by Flight Hours (FH)

Extensions up to 10% or 500 FH (whichever is the lesser) may exceptionally be 

granted on CMR intervals quoted in terms of Flight Hours. 

B. CMR’s controlled by Flight Cycles (FC)

Extensions up to 5% or 250 FC (whichever is the lesser) may exceptionally be granted 

on CMR intervals quoted in terms of Flight Cycles. 

C. CMR’s controlled by Calendar time (MO)

Where the repeat interval is 12 months or less, extensions up to 10% or 1 month 

(whichever is the lesser) may exceptionally be granted on CMR intervals quoted in 

terms of months. 

Where the repeat interval is greater than 12 months, extensions up to 2 months may 

exceptionally be granted. 

It is the Operator's responsibility to identify appropriate procedures with the Authority of the 

State of aircraft registry for the control and development of his maintenance program. 
A310 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: NOV 30/12 ALS PART 3-0 PAGE: 6 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. 

This paragraph in the ALS Part 3 is written to confirm to the Authority of the State of aircraft 

registry that exceptional short-term extensions of CMR intervals are permissible. Approval 

of such extensions rests with the Authority of the State of aircraft registry in the same way 

as it does for any other scheduled maintenance task interval extension 

10. EXPLANATION OF ALS SUB-PART 3-1 TABLE FORMAT

Rev 

code CMR Ref number CMR Cat. Task Description Interval

Related 

MRBR 

task 

number 

Applicability

1 2 3 4 5 6 7 

1 Rev Code

This column identifies the revision status of the CMR compared to the previous issue of 

the A310 ALS Part 3 or CMR document: 

− N: New CMR 

− R: CMR revised 

− D: CMR deleted 

2 CMR Ref Number

XXXXXX-MEFYY-Z-C 

Where 

− XXXXXX is Maintenance Significant Item (MSI), 

− M used to differentiate aircraft series in Airbus numbering system. As it is not 

applicable to A310 CMR references, it is always set to ‘0’ in this document, 

− E is Engine/APU/... manufacturer identification (where applicable - "0" is default 

value, ‘G’ stands for GE engines, P stands for Pratt & Whitney engines). 

− F is engine/APU type information when more than one engine from same 

manufacturer is applicable to the program (where applicable - "0" is default value) 

− YY is sequential number, 

− Z is for the technical solution applicable to a same task requirement, 

− C stands for CMR. 

3 CMR Cat

This column identifies the CMR categorisation: 

− CMR*: One Star CMR. 

− CMR**: Two Star CMR. 

4 Task description 

This column identifies the MSI title and the description of the task associated with the 

CMR. This reflects the Maintenance Review Board Report (MRBR) task wording where 

the identical task is required by the MRBR. 

5 Interval 

This column identifies the interval between successive accomplishments of the task. 
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©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. 

6 Related MRBR task number 

This column identifies the related MRBR task (if any) whose content covers the CMR 

requirement in terms of maintenance procedure. Nevertheless, differences may exist 

between the MRBR task and the CMR concerning the interval and the applicability. For 

compliance with CMR requirements, the ALS Part 3 provides the limiting values. 

7. Applicability 

This column indicates the aircraft type/series/model and modification status for which 

the task is applicable. Examples are given below: 

Applicability Task applicable to 

ALL All A310 aircraft. 

PRE nnnnn All A310 PRE MOD nnnnn. 

i.e. A310 that do not have MOD nnnnn embodied. 

POST nnnnn All A310 POST MOD nnnnn. 

i.e. A310 that do have MOD nnnnn embodied. 

POST nnnnn 

POST mmmmm 

All A310 POST MOD nnnnn and POST MOD mmmmm. 

i.e. A310 that do have MOD nnnnn and MOD mmmmm embodied. 

PW JT9D-7R4 

POST 12261 

Task applicable to all A310 aircraft equipped with Pratt & Whitney engines 

AND with MOD 12261 embodied. 

END OF SUB-PART 3-0 
A310 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: NOV 30/12 ALS PART 3-1 

EASA APPROVED 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. Sub-part 3-1 CMR TASKS

Rev 

code CMR Ref number CMR Cat. Task Description Interval Relat

Task 

N 213000-00001-1-C CMR* PRESSURIZATION CONTROL 

REMOVE CABIN PRESSURE SAFETY VALVES FOR FUNCTIONAL CHECK IN SHOP AND OPERATIONAL CHECK OF SAFETY VALVES OPENING NOTE: FIRST ACCOMPLISHMENT MUST BE CARRIED OUT NO LATER THAN 

THE AIRCRAFT ACCUMULATING 40000 FH. 

14000 FH 21.3

21.3

 222000-00001-1-C CMR* SPEED ATTITUDE CORRECTION (F.A.C) 

OPERATIONAL CHECK TO VERIFY CORRECT OPERATION OF RUDDER 

CONTROL WITH NO YAW DAMPER ENGAGED AND WITH YAW DAMPER 2 ONLY ENGAGED 

450 FH 22.2

N 222000-00002-1-C CMR* SPEED ATTITUDE CORRECTION (F.A.C) 

OPERATIONAL CHECK TO VERIFY OVERRIDING AND DISCONNECTION OF 

ELECTRICAL TRIM 

85000 FH 22.2

N 222000-00003-1-C CMR* SPEED ATTITUDE CORRECTION (F.A.C) 

OPERATIONAL CHECK TO VERIFY CORRECT PITCH TRIM DISENGAGEMENT FOLLOWING AUTOPILOT OVERRIDE 

85000 FH 22.2

N 222000-00004-1-C CMR* SPEED ATTITUDE CORRECTION (F.A.C) 

OPERATIONAL CHECK TO VERIFY CORRECT SAFETY DEVICES IN PITCH TRIM ENGAGEMENT 

85000 FH 22.2

N 242000-00001-1-C CMR* AC GENERATION 

OPERATIONAL CHECK OF AC ESSENTIAL CIRCUIT (GEN. 1 OR GEN. 2 OVERRIDE SUPPLY) 

4000 FH 24.2
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ISSUE: NOV 30/12 ALS PART 3-1 

EASA APPROVED 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. 

Rev 

code CMR Ref number CMR Cat. Task Description Interval Relat

Task 

R 261500-00001-1-C CMR** AVIONICS COMPARTMENT SMOKE DETECTION 

CARGO COMPARTMENT SMOKE DETECTION OPERATIONAL CHECK OF ALL SMOKE DETECTION CHANNELS INCLUDING ASSOCIATED WARNINGS AND CLOSURE OF VALVES IN VENTILATED CARGO COMPARTMENTS 

460 FH 26.1

26.1

261900-00001-1-C CMR** SMOKE DETECTION SYSTEM - UPPER DECK CARGO COMPARTMENT 

OPERATIONAL CHECK OF ALL SMOKE DETECTION CHANNELS INCLUDING ASSOCIATED WARNINGS 

400 FH 26.1

R 262300-00001-1-C CMR** CARGO COMPARTMENT FIRE EXTINGUISHING 

SQUIB TEST 

500 FH 26.2

262300-00002-1-C CMR** CARGO COMPARTMENT FIRE EXTINGUISHING 

CHECK FIRING CIRCUIT CONTINUITY AND PERFORM OPERATIONAL CHECK OF LOW PRESSURE INDICATING CIRCUIT AND PRIORITY SWITCHING 

1600 FH 26.2

R 262300-00003-1-C CMR** CARGO COMPARTMENT FIRE EXTINGUISHING 

CHECK FIRING CIRCUIT CONTINUITY AND PERFORM OPERATIONAL CHECK OF LOW PRESSURE INDICATING CIRCUIT 

8000 FH 26.2

R 262300-00004-1-C CMR** CARGO COMPARTMENT FIRE EXTINGUISHING 

CHECK FIRING CIRCUIT CONTINUITY AND PERFORM OPERATIONAL CHECK OF LOW PRESSURE INDICATING CIRCUIT AND PRIORITY SWITCHING 

8000 FH 26.2

D 262300-00005-1-C CMR** CARGO COMPARTMENT FIRE EXTINGUISHING

FUNCTIONAL CHECK OF PRESSURE REDUCING VALVE IN FLOW METERING

DEVICE

14000 FH 26.2
A310 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: NOV 30/12 ALS PART 3-1 

EASA APPROVED 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. 

Rev 

code CMR Ref number CMR Cat. Task Description Interval Relat

Task 

D 262300-00006-1-C CMR** CARGO COMPARTMENT FIRE EXTINGUISHING

INSPECT SOLID PARTICLE FILTER, PERFORM FREE MOVEMENT CHECK OF CHECK VALVE AND PERFORM DETAILED INSPECTION OF DIAPHRAGM OF FLOW METERING DEVICE

14000 FH 26.2

R 262300-00007-1-C CMR** CARGO COMPARTMENT FIRE EXTINGUISHING 

REMOVAL OF PRESSURE REDUCING VALVE, CHECK VALVE, WATER ADSORBING FILTER, SOLID PARTICLE FILTER FOR RESTORATION AND WORKSHOP CHECK, PERFORM CLEANING AND CHECK OF DIAPHRAGM AND PERFORM CHECK DISTRIBUTION PIPING FOR LEAKAGE AND OBSTRUCTION 

14000 FH 26.2

R 262300-00008-1-C CMR** CARGO COMPARTMENT FIRE EXTINGUISHING 

CHECK DISTRIBUTION PIPING FOR LEAKAGE AND OBSTRUCTION 

14000 FH 26.2

R 271400-00001-1-C CMR** HYDRAULIC ACTUATION - AILERON, RUDDER, ELEVATOR, TRIMMABLE 

HORIZONTAL STABILIZER, SPOILER/SPEED BRAKES OPERATIONAL CHECK OF RUDDER, AILERON AND ELEVATOR JAMMING DETECTION SYSTEM 

4000 FH 27.1

R 271400-00002-1-C CMR** HYDRAULIC ACTUATION - AILERON, RUDDER, ELEVATOR, TRIMMABLE 

HORIZONTAL STABILIZER, SPOILER/SPEED BRAKES OPERATIONAL CHECK OF RUDDER SERVOCONTROLS WITH INDIVIDUAL HYDRAULIC SYSTEMS 

800 FH 27.1

R 271400-00003-1-C CMR* HYDRAULIC ACTUATION - AILERON, RUDDER, ELEVATOR, TRIMMABLE 

HORIZONTAL STABILIZER, SPOILER/SPEED BRAKES OPERATIONAL CHECK OF TRIMMABLE HORIZONTAL STABILIZER JAMMING 

DETECTION SYSTEM 

350 FH 27.1

R 271400-00004-1-C CMR* HYDRAULIC ACTUATION - AILERON, RUDDER, ELEVATOR, TRIMMABLE 

HORIZONTAL STABILIZER, SPOILER/SPEED BRAKES OPERATIONAL CHECK OF TRIMMABLE HORIZONTAL STABILIZER GREEN/YELLOW OVHT WARNING INHIBITION 

700 FH 27.1
A310 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: NOV 30/12 ALS PART 3-1 

EASA APPROVED 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. 

Rev 

code CMR Ref number CMR Cat. Task Description Interval Relat

Task 

R 271400-00005-1-C CMR** HYDRAULIC ACTUATION - AILERON, RUDDER, ELEVATOR, TRIMMABLE 

HORIZONTAL STABILIZER, SPOILER/SPEED BRAKES FUNCTIONAL CHECK OF YELLOW PRIORITY VALVE (FOR TRIMMABLE HORIZONTAL STABILIZER ACTUATOR) AND FUNCTIONAL CHECK OF YELLOW SERVOCONTROLS PRIORITY FUNCTION (FOR FLAPS PCU). 

16000 FH 27.1

273100-00001-1-C CMR** ELEVATOR MECHANICAL CONTROL AND PITCH UNCOUPLING 

OPERATIONAL CHECK OF PITCH CONTROL UNCOUPLING 

2000 FH 27.3

273100-00002-1-C CMR** ELEVATOR MECHANICAL CONTROL AND PITCH UNCOUPLING 

FUNCTIONAL CHECK OF PITCH CONTROL UNCOUPLING AND COUPLING 

18000 FH 27.3

N 273300-00001-1-C CMR* ARTIFICIAL FEEL (ELEVATOR) 

REMOVE PITCH ARTIFICIAL FEEL UNIT FOR OVERHAUL IN SHOP 

85000 FH 

274000-00001-1-C CMR** TRIMMABLE HORIZONTAL STABILIZER (THS) 

OPERATIONAL CHECK WITH INDIVIDUAL HYDRAULIC SYSTEMS 

700 FH 27.4

R 275000-00001-1-C CMR* FLAPS/SLATS 

OPERATIONAL CHECK OF WTB AND SYSTEM TORQUE LIMITER LOCKOUT FACILITY AND, AFTER TEST, CHECK WTB FOR SECURITY, CRACKS AND 

LEAKS 

2000 FH 27.5

R 275000-00002-1-C CMR* FLAPS/SLATS 

CHECK PRIMARY AND SECONDARY LOAD PATHS OF FLAP SCREW JACKS * 8000 FC IF MOD 6238/SB 27-2037 IS EMBODIED PRIOR TO 8000 SCREWJACK FLIGHTS. 

4500 FC 

(N° 2) 

*8000 FC 

(N° 1, 3, 4) 

27.5
A310 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: NOV 30/12 ALS PART 3-1 

EASA APPROVED 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. 

Rev 

code CMR Ref number CMR Cat. Task Description Interval Relat

Task 

R 275000-00003-1-C CMR** FLAPS/SLATS 

READ LATERAL PANEL MFA "SFCC1 AND 2 BITE DISPLAY" 

800 FH 27.5

R 275000-00004-1-C CMR** FLAPS/SLATS 

OPERATIONAL CHECK OF SYS 1 AND SYS 2 

800 FH 27.5

R 275000-00005-1-C CMR** FLAPS/SLATS 

FLAP TRANSMISSION SHAFTING INTEGRITY AND WTB FUNCTIONAL CHECK 

15000 FC 

OR 

22000 FH 

27.5

R 275000-00006-1-C CMR** FLAPS/SLATS 

SLAT TRANSMISSION SHAFTING INTEGRITY AND WTB FUNCTIONAL CHECK 

15000 FC 

OR 

22000 FH 

27.5

R 275000-00007-1-C CMR** FLAPS/SLATS 

OPERATIONAL CHECK OF KRUEGER FLAP ACTUATOR HYDRAULIC LOCK AND DETAILED INSPECTION OF ACTUATOR, ATTACHMENTS AND LINKAGES 

12000 FC 27.5

R 276000-00001-1-C CMR** SPOILERS AND SPEED BRAKES 

OPERATIONAL CHECK OF GROUND SPOILER ELECTRICAL CIRCUIT 

500 FH 27.6

282100-00001-1-C CMR** FUEL PUMP SYSTEM 

OPERATIONAL CHECK TO CONFIRM FUEL FLOW FROM OUTER TANKS 

3500 FH 28.2

R 282200-00001-1-C CMR** TANK ISOLATION SYSTEM 

OPERATIONAL CHECK OF TRIM TANK ISOLATION VALVE MANUAL CLOSING INCLUDING INDICATION 

2000 FH 28.2
A310 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: NOV 30/12 ALS PART 3-1 

EASA APPROVED 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. 

Rev 

code CMR Ref number CMR Cat. Task Description Interval Relat

Task 

282200-00002-1-C CMR** TANK ISOLATION SYSTEM 

OPERATIONAL CHECK TO ENSURE THAT FUEL FLOW IS INHIBITED WHEN 

THE TRIM TANK ISOLATION VALVE IS INDICATED OFF 

20000 FH 28.2

R 282600-00001-1-C CMR** FUEL TRANSFER (CG CONTROL) 

OPERATIONAL CHECK OF MANUAL FORWARD TRANSFER CONTROL 

4500 FH 28.2

 282800-00001-1-C CMR* ADDITIONAL CENTER TANK SYSTEM 

OPERATIONAL CHECK OF ACT FUEL TRANSFER FAULT WARNING FUNCTION BY LOW LEVEL TEST SWITCH 

400 FH 28.2

R 282800-00002-1-C CMR* ADDITIONAL CENTER TANK SYSTEM 

OPERATIONAL CHECK OF FWD TRANSFER MODE 

4000 FH 28.2

R 282800-00003-1-C CMR** ADDITIONAL CENTER TANK SYSTEM 

OPERATIONAL CHECK OF THE INTEGRITY OF THE ACT FUEL TRANSFER FAULT WARNING CIRCUIT 

4000 FH 28.2

R 291000-00001-1-C CMR* MAIN AND AUXILIARY (HYDRAULIC POWER) 

FUNCTIONAL CHECK OF RAM AIR TURBINE, FOLLOWED BY INSPECTION AND REPLACEMENT OF FILTER ELEMENT (WITH NEW OR RESTORED UNIT) 

30 MO 29.1

R 291000-00002-1-C CMR* MAIN AND AUXILIARY (HYDRAULIC POWER) 

FUNCTIONAL CHECK OF RAM AIR TURBINE FOLLOWED BY CHECK OF FILTER INDICATOR POSITION 

30 MO 29.1

314600-00001-1-C CMR** CG CONTROL SYSTEM 

OPERATIONAL CHECK OF AFT CG WARNING USING DADC BITE 

4000 FH 31.4
A310 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: NOV 30/12 ALS PART 3-1 

EASA APPROVED 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. 

Rev 

code CMR Ref number CMR Cat. Task Description Interval Relat

Task 

R 323000-00001-1-C CMR** EXTENSION AND RETRACTION/POSITION AND WARNING 

OPERATIONAL CHECK OF LANDING GEAR AND GEAR DOOR UPLOCK RELEASE AND GEAR DOOR DEPLOYMENT USING FREE FALL SYSTEM 

12 MO 32.3

N 323000-00002-1-C CMR* EXTENSION AND RETRACTION/POSITION AND WARNING 

OPERATIONAL CHECK OF LANDING GEAR SELECTOR LEVER INTERLOCK 

16000 FH 32.3

N 323000-00003-1-C CMR* EXTENSION AND RETRACTION/POSITION AND WARNING 

OPERATIONAL CHECK OF THE SELECTOR VALVE NOTE 1: FIRST ACCOMPLISHMENT MUST BE CARRIED OUT NO LATER THAN 

 THE AIRCRAFT ACCUMULATING 85000 FH. NOTE 2: PERFORMANCE OF MRBR TASK 32.30.00/12 COVERS CMR 323000- 00003-1-C. 

500 FH N

N 323000-00004-1-C CMR* EXTENSION AND RETRACTION/POSITION AND WARNING 

OPERATIONAL CHECK OF CONTROL REDUNDANCY ON SYSTEM 1 AND 2 NOTE: FIRST ACCOMPLISHMENT MUST BE CARRIED OUT NO LATER THAN  THE AIRCRAFT ACCUMULATING 85000 FH. 

2300 FH 32.3

360000-00001-1-C CMR** PNEUMATIC GENERAL 

FUNCTIONAL CHECK OF OVERPRESSURE VALVE 

10000 FH 36.0

R 525111-00001-1-C CMR** COCKPIT DOOR 

OPERATIONAL CHECK OF DECOMPRESSION FLAP RELEASE MECHANISM 

11000 FH 52.5
A310 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: NOV 30/12 ALS PART 3-1 

EASA APPROVED 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. 

Rev 

code CMR Ref number CMR Cat. Task Description Interval Relat

Task 

R 783000-0P001-1-C CMR** THRUST REVERSER ACTUATION AND COWLING (PW) 

FUNCTIONAL CHECK OF THE SYNCHRONISING SHAFT LOCK 

7000 FH 78.3

 PW 

78.3

PW J

783000-0P002-1-C CMR** THRUST REVERSER ACTUATION AND COWLING (PW) 

SELECTOR VALVE STOW LATCHING FORCE CHECK 

7000 FH 

783000-0P003-1-C CMR** THRUST REVERSER ACTUATION AND COWLING (PW) 

VISUAL INSPECTION OF THE TRANSLATING SLEEVE COMPRESSION SEAL 

7000 FH 

R 783100-0G001-1-C CMR** THRUST REVERSER CONTROL/ACTUATION SYSTEM (GE) 

THRUST REVERSER ELECTRICAL CHECK COMPRISING:  - THIRD LOCKS AND DUAL RELAYS TEST  - THRUST LEVERS DISAGREE TEST  - LANDING GEAR GROUND FUNCTION TEST NOTE: CMR INCLUDES REQUIREMENTS OF MRBR TASK 78.31.00/02. 

7000 FH 

END OF SUB-PART 3-1 
A310 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: NOV 30/12 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-1 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. 

1- GENERAL

At the opportunity of the update of A310 CMR Document Issue 13, its content has been 

transferred to the ALS Part 3 revision 00. 

2- SUMMARY OF CHANGES

The following summarizes the changes with respect all issues of the A310 CMR Document and 

A310 ALS Part 3. 

Iss / Rev 

Date Summary of Changes (CMR Document)

1 

Dec 85 

− First Issue. 

2 

Jun 87 

− A310-324 added to section 0 para (3) applicability 

3 

Jun 88 

− Introduction and systems tasks identification criteria and handling instructions 

brought in line with A300-600 and A320 CMR document. 

− Deletion of MPD references 

− Introduction of note to reflect Mod 6238 in MSI 27.50.00.-Interval increase 

associated with MSI 27.50/80.00 from weekly/350 FH to 800 FH/800 FH. 

− Deletion of visual inspection following flap/slat WTB functional check to reflect new 

AMM procedure. 

− Introduction of CMRs associated with introduction of Additional Center Tank. 

− NB: 

• Section 2 not modified at this revision. 

• Criteria for identification and handling instructions will be brought in line 

with section 1 when document is revised to reflect results of structural 

reassessment at the end of the full scale testing. 

4 

Jun 89 

− Introduction of CMRs associated with introduction of Twin Additional Center 

Tanks. 

− Minor wording change in Section 0 para (1). 

− Applicability corrected to read A310-203C instead of A310-223C and A310-204 

added in section 0 para (2). 

− Mod number corrected in Section 2 page 6 from 5121 to 5124. 

5 

Aug 90 

− To completely revise Section 2, Structure Tasks, subsequent to termination of 

fatigue tests and inclusion of repercussions in the MRBD. Concept of One and 

Two Star CMRs cancelled. 

− Deletion of tasks associated with single Additional Center Tank (Mod 6920). 

− Removal of the words "or on ACT installation" from interval column of One Star 

ACT tasks (Mod 7468). 

− Revision of description of One Star task associated with Ram Air Turbine. 

− Introduction of three Two Star tasks associated with Cargo Compartment Fire 

Extinguishing Flow Limiting Device and consequent wording change to existing 

Pre Mod task. 
A310 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: NOV 30/12 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-2 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. 

Iss / Rev 

Date Summary of Changes (CMR Document)

5 

(continued) 

− Functional test of Krueger flap actuator hydraulic lock corrected to Operational 

Test. 

6 

May 91 

− A310-308 added to section 0 para (3) applicability. 

7 

Feb 92 

− A310-325 added to section 0 para 3 "Applicability". 

8 

May 95 

− To identify that task 31.46.00 "OPT of aft CG warning using DADC BITE" is 

applicable only on aircraft Pre Mod 10806/SB 31-2073. 

− To clarify that Structural Inspections are not CMRs several texts and headings 

changed. Section 2 updated to delete reference to Industrial Lead Fleet. 

9 

Aug 98 

− Document reformatted to permit direct inclusion in MRB Report Appendix 1. 

− Section 2 "Structural Inspections" removed from CMR doc and introduced in new 

document titled "Airworthiness Limitation Items" which has a dedicated reference 

and approval page. 

− Section 0, para 1 "Scope" modified to reflect removal of fatigue related Structural 

Inspections from CMR doc. 

− Section 1 retitled 'CMR "One Star" tasks' and Section 2 retitled 'CMR "Two Star" 

tasks'. 

− Reference numbers to corresponding MRB Report task numbers inserted. 

− 2750/8000: One Star task. Reference to flap transmission deleted from check of 

load paths. 

− 2910/2000: One Star task split to clarify difference in filter task with/without Mod 

5161. 

− Interval increased from 350 FH to 400 FH for the following Two Star tasks: 

• 2615/1600 Operational check 

• 261900 Operational check 

• 262300 SQUIB test 

• 276000 Operational check. 

− Usage parameter 'LDGS' replaced by 'FC' 

10 

Jan 03 

− 'Airbus Industrie' logo replaced by 'Airbus' logo on all pages. Page Issue / Date not 

modified by this change. 

− Section 0 In Scope paragraph, reference to AMM Chapter 05 deleted and 

replaced by MPD Section 9.1. Paragraph 4 modified and new paragraph 5 added 

− 525100 New Two Star task added associated with cockpit door decompression 

flap (Mod 12693). 

− 783000 New Two Star task added associated with PW thrust reverser ‘third line of 

defense’ (Mod 12261 for JT9D-7R4 and Mod 12262 for PW4000). 

11 

Jun 04 

11 

(continued) 

− Section 0, para 5. Maximum short term extension for tasks expressed in Flight 

Cycles reduced from 10% / 500FC to 5% / 250FC in line with JAA’s TGL N°26. 

− Section 2. MSI 521100 corrected to read MSI 525111. Ref to Mod 12716 (SB 25-

2147) added 

− Section 2. 783100. New Two Star task added associated with GE CF6 thrust 

reverser ‘third line of defence’ (Mod 12512 for -80C2 and Mod 12564 for -80A3) 
A310 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: NOV 30/12 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-3 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. 

Iss / Rev 

Date Summary of Changes (CMR Document)

12 

Feb 05 

− Section 0. Note within paragraph 1 relating to mandatory status of CMR document 

reworded for clarification 

− Section 2. MSI 783000 (PW). Functional check of synchronizing shaft lock. Ref to 

SB numbers corresponding to mods added. 

− Section 2. MSI 783000 (PW). Two new Two Star CMRs added applicable to aircraft 

fitted with Mod 12261 or 12262. Identical tasks on pre mod aircraft are mandated by 

AD. 

13 

30 Nov 12 

− Last issue: the content of A310 CMR Document (Referenced AI/ST5/849/85), 

applicable to all A310 models, has been transferred to the A310 Airworthiness 

Limitations Section (ALS) Part 3 Certification Maintenance Requirements (CMR). 

 
A310 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: NOV 30/12 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-4 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. 

Iss / Rev 

Date Summary of Changes (ALS Part 3 - CMR)

00 

30 Nov 12 

ALS Part 3 has been reformatted, compared to A310 CMR Document Issue 12. This document 

is divided into the following sub-parts: 

• Subpart 3-0, which includes the introduction and generic paragraphs related to CMR.

• Sub-parts 3-1 which provides the list of CMR tasks in a single CMR table. 

• Summary of changes have been transferred to appendices of ALS Part 3 - CMR. 

• A list of abbreviations is appended. 

− Revision 00 introduces in the ROR: a paragraph titled “Revision 00 compliance time”. 

Subpart 3-0

− Revision 00 introduces the following information: 

• In paragraph “2- Applicability”, addition of the operational life applicable to A310 

systems installations of CMR contained in the ALS Part 3. 

• Addition of paragraphs “3- Modifications/repairs not developed under Airbus DOA 

• Certificate EASA. 21J.031, 4- Alternative Means Of Compliance”, “7- Starting time 

for CMR interval” & “8-Definitions”. 

• Addition of paragraph “10- Explanation of ALS Sub-part 3-1 table format”, which 

details the new presentation of CMR tasks. 

− Following wording modifications have been performed: 

• From revision 13 and on, the content of A310 Certification Maintenance 

Requirements (CMR) Document (Referenced AI/ST5/849/85) applicable to A310 

models has been transferred to the A310 Airworthiness Limitations Section (ALS) 

Part 3 Certification Maintenance Requirements (CMR). This change is part of a 

process to provide Operators and Maintenance, Repair and Overhaul Organizations 

(MRO) with a series of stand-alone documents in a location dedicated to the 

limitations. The data provided under Part 3 has been established with the following 

rules: 

• §1: Addition of the following sentences: 

• “Though not addressed by the paragraph 25.4 Federal Aviation Regulations 

(FAR) 25 appendix H, CMRs may be considered as the systems equivalent to 

the structural Airworthiness Limitation Items. For this reason, it is considered 

appropriate to identify them as part of the ALS.” 

• “Compliance with the requirements stated in this document is mandatory. No 

person may operate an aircraft to which an ALS applies except in accordance 

with the requirements of that ALS, unless otherwise agreed with the Authority of 

the State of aircraft registry.” 

• §1: Change “Non-compliance suspends the validity of the Airworthiness Certificate” 

into “Non-compliance could suspend the validity of the Airworthiness Certificate.”. 

• §1: The sentence: “This document does not take into account Airworthiness 

Directives (Consigne de Navigabilité) which, if issued against a CMR, supersede the 

specific requirement given in this document.” has been reworded into “Airworthiness 

Directives dedicated to specific concerns may override the specific requirement(s) 

given in this document”. 

• §1: “agreed” added in the sentence “The identification of CMR...”. 

• §1: “his national authorities” replaced by “the Authority of the State of aircraft 
A310 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: NOV 30/12 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-5 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. 

Iss / Rev 

Date Summary of Changes (ALS Part 3 - CMR)

00 

(continued) 

registry”. 

• §2: Addition of the following sentence: “Note: The engine Time Limits and 

Maintenance Checks are not included in this manual: refer to the relevant Engine 

Manufacturer Chapter 05 manual.”. 

• §4: “according to EASA agreed methodology” replaced by “in accordance with the 

EASA agreed methodology”. 

• §4: “aircraft life” replaced by “operational life”. 

• §4: “his local authority” replaced by “the Authority of the State of aircraft registry”. 

• §5.A.: The sentence “The tasks and intervals specified in the CMR document are 

mandatory and cannot be changed, escalated or deleted without the concurrence of 

the Primary Certification Authority (EASA).” is replaced by “One Star CMRs specified 

in the ALS Part 3 are mandatory tasks and cannot be changed or deleted without the 

concurrence of the Primary Certification Authority (EASA). One Star CMR task 

intervals quoted in ALS Part 3 are absolute limitations and cannot be escalated 

without the concurrence of the Primary Certification Authority (EASA).”. 

• §5.B.: The sentence “Task intervals may be adjusted in accordance with an 

operator's approved escalation practices or an approved reliability program, but the 

task content may not be changed or deleted without prior Primary Certification

Authority (EASA) approval.” is replaced by “Two Star CMRs specified in the ALS 

Part 3 are mandatory tasks and cannot be changed or deleted without the 

concurrence of the Primary Certification Authority (EASA). Two Star CMR task 

intervals may be adjusted in accordance with an Operator's approved escalation 

practices or an approved reliability program, but the task content may not be 

changed or deleted without prior Primary Certification Authority (EASA) approval.”. 

• §8.B.: “(FC or LDGS)” replaced by “(FC)”. 

• §8.: “his local regulatory authority” replaced by “the Authority of the State of aircraft 

registry”. 

Subparts 3-1

− ALS Part 3 Revision 00 and subsequent, use a new formatted table to list all the CMR 

tasks and their associated data. Main new features are the creation of dedicated CMR 

reference numbers, introduction of an Applicability column and listing of CMR* and CMR** 

in a single table. In addition reference to Service Bulletins (SB) have been added in 

addition to modification reference whenever is necessary in order to be consistent with 

Maintenance Planning Document (MPD) applicability quotation principles. 

− New CMR task 213000-00001-1-C, which is transferred from A310 ALS Part 4 revision 

01, sub-part 4-3(a). 

− New CMR tasks added resulting from ESG exercise (HTE step 3) 

• CMR task 222000-00002-1-C, 

• CMR task 222000-00003-1-C, 

• CMR task 222000-00004-1-C, 

• CMR task 273300-00001-1-C, 

• CMR task 323000-00003-1-C, 

• CMR task 323000-00004-1-C. 
A310 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: NOV 30/12 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-6 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. 

Iss / Rev 

Date Summary of Changes (ALS Part 3 - CMR)

00 

(continued)

− New CMR One star task 242000-00001-1-C due to the incompatibility between SSA and 

MRBR task (FEC 9). 

− CMR task 261500-00001-1-C: task interval escalated from 400 FH to 460 FH. 

− CMR task 262300-00001-1-C: task interval escalated from 400 FH to 500 FH. 

− CMR tasks 262300-00003-1-C and 262300-00004-1-C: original CMR task split into these 

two CMR tasks in order to reflect the latest MRBR changes. 

− New CMR 262300-00007-1-C merges the following two previous CMR Two Star tasks in 

order to reflect latest MRBR changes: 

o CMR task 262300-00005-1-C: Functional check of pressure reducing valve in Flow 

Metering Device (with mod 6403). (MRB Report task 262300-9) at 14000 FH, and 

o CMR task 262300-00006-1-C: Inspect solid particle filter, perform free movement 

check of check valve and perform detailed inspection of diaphragm of Flow Metering 

Device (with mod 6403). (MRB Report task 262300-10) at 14000 FH 

− CMR task 262300-00008-1-C: applicability updated to reflect latest MRBR changes. 

− CMR task 271400-00002-1-C: task interval escalated from 700 FH to 800 FH and MRBR 

task number updated in order to reflect the latest MRBR changes. 

− CMR task 276000-00001-1-C: task interval escalated from 400 FH to 500 FH. 

− CMR task 282200-00001-1-C: task interval escalated from 1600 FH to 2000 FH. 

− CMR task 282600-00001-1-C: task interval escalated from 4000 FH to 4500 FH. 

− CMR task 323000-00001-1-C: task description changed in order to reflect latest MRBR 

changes. 

− New CMR task 323000-00002-1-C due to the incompatibility between SSA and MRBR 

task (FEC 9). 

− CMR task 525111-00001-1-C: addition of related MRBR task number reference and 

applicability updated in order to reflect latest MRBR changes. 

− CMR task 783000-0P001-1-C: addition of related MRBR task number reference in order 

to reflect latest MRBR changes. 

− A “Note” added to CMR task 783000-0G001-1-C to provide more information. 

− Following re-numbering of MRBR tasks within A310 MRB Report Revision 06, related 

MRBR task numbers have been revised for the following CMR tasks 

• CMR task 271400-00001-1-C, 

• CMR task 271400-00002-1-C, 

• CMR task 271400-00003-1-C, 

• CMR task 271400-00004-1-C, 

• CMR task 271400-00005-1-C, 

• CMR task 275000-00001-1-C, 

• CMR task 275000-00002-1-C, 

• CMR task 275000-00003-1-C, 

• CMR task 275000-00004-1-C, 

• CMR task 275000-00005-1-C, 

• CMR task 275000-00006-1-C, 

• CMR task 275000-00007-1-C, 

• CMR task 282800-00002-1-C, 

• CMR task 282800-00003-1-C, 
A310 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: NOV 30/12 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-7 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. 

Iss / Rev 

Date Summary of Changes (ALS Part 3 - CMR)

00 

(continued) 

• CMR task 291000-00001-1-C, 

• CMR task 291000-00002-1-C. 
A310 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 2 - ABBREVIATIONS

ISSUE: NOV 30/12 ALS PART 3 ABBREVIATIONS PAGE: APX2-1 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. 

ABBREVIATION MEANING 

AD Airworthiness Directive 

ALS Airworthiness Limitations Section 

AMOC Alternative Means Of Compliance 

BITE Built-In Test Equipment 

Cal. Calendar 

CMR Certification Maintenance Requirements 

D Deleted 

DADC Digital Air Data Computer 

DSG Design Service Goal 

EASA European Aviation Safety Agency 

FAA Federal Aviation Administration 

FADEC Full Authority Digital Engine Control 

FC Flight Cycles 

FH Flight Hours 

FWD Forward 

GE General Electric 

ICAO International Civil Aviation Organization 

IPC Illustrated Parts Catalogue 

JAR Joint Aviation Requirements 

LDG Landings 

MO Months 

MOD Modification 

MPD Maintenance Planning Document 

MRBR Maintenance Review Board Report 

MRO Maintenance, Repair and Overhaul organisations 

MSI Maintenance Significant Item 

N New 

PW Pratt and Whitney 

R Revised 

RAT Ram Air Turbine 

ROR Record Of Revisions 
A310 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 2 - ABBREVIATIONS

ISSUE: NOV 30/12 ALS PART 3 ABBREVIATIONS PAGE: APX2-2 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document. 

ABBREVIATION MEANING 

SB Service Bulletins 

SFCC Slat/Flap Control Computer 

SYS System 

THS Trimmable Horizontal Stabilizer 

TOC Table Of Contents