A300-600 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. 
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

LIST OF EFFECTIVE PAGES

PART MVT PAGE ISSUE PART MVT PAGE ISSUE

ISSUE: APR 18/12 ALS PART 3 PAGE: 1-LEP 

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

3 1-LEP APR 18/12 

3 1-TOC APR 18/12 

3 1-ROR APR 18/12 

3 2-ROR APR 18/12 

3-0 1 APR 18/12 

3-0 2 APR 18/12 

3-0 3 APR 18/12 

3-0 4 APR 18/12 

3-0 5 APR 18/12 

3-0 6 APR 18/12 

3-0 7 APR 18/12 

3-1 1 APR 18/12 

3-1 2 APR 18/12 

3-1 3 APR 18/12 

3-1 4 APR 18/12 

3-1 5 APR 18/12 

3-1 6 APR 18/12 

3-1 7 APR 18/12 

3-1 8 APR 18/12 

3-2 1 APR 18/12 

3-2 2 APR 18/12 

3-2 3 APR 18/12 
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

TABLE OF CONTENTS

SUBJECT PART

ISSUE: APR 18/12 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 

CMR TASKS SPECIFIC TO A300-600ST 3-2 
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

RECORD OF REVISIONS

ISSUE: APR 18/12 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 

3-2 

APR 18/12 

Note: The ALS Part 3 is covered by the Certification Document 00X0500M093/M31 issue 01 

and 00K0500M093/M31 issue 01. 

Revision 00 is approved by EASA under reference 10039215. 

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 subparts 3-1 and/or 3-2 of the A300-600 ALS Part 3 revision 00 from 18-April-2013. 

2. From 18-April-2012 to 17-April-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-parts 3-1 and/or 3-2 of the A300-600 ALS Part 3 at revision 00. 

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

3-1 of the A300-600 ALS Part 3 revision 00: 

- First accomplishment of CMR task 213000-A0001-1-C must be carried out 

• for A300-600 aircraft 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 MRB tasks 21.30.00/06 and 21.30.00/08 to claim 

compliance with this CMR task when the MRB tasks are performed within the 

airworthiness limitations stated above), 

• for A300-600 aircraft having accumulated more than 40000 FH with the record of 

ASM task 213115-04-1 or MRB tasks 21.30.00/06 and 21.30.00/08, no later than 

the aircraft accumulating 14000 FH since last accomplishment of ASM task 
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

RECORD OF REVISIONS

ISSUE: APR 18/12 ALS PART 3 PAGE: 2-ROR 

 EASA APPROVED 

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

213115-04-1 (revision 01 of A300-600 ALS Part 4, sub-part 4-3(a)) or MRB tasks 

21.30.00/06 and 21.30.00/08, whichever occurs later, 

• for A300-600 aircraft having accumulated more than 40000 FH without the record 

of ASM task 213115-04-1 (revision 01 of A300-600 ALS Part 4, sub-part 4-3(a)) or 

MRB tasks 21.30.00/06 and 21.30.00/08, within 3 months from the 18 April 2012. 

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

previous accomplishment date. 
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: APR 18/12 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 

A300-600 Certification Maintenance Requirements (CMR) Document 

(Referenced AI/ST5/829/85) 

applicable to A300-600 and A300-600ST models, has been transferred to the 

A300-600 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. 
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: APR 18/12 ALS PART 3-0 PAGE: 2 

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

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 types Aircraft series Aircraft models 

 

A300-600 

A300 B4-600 

A300 B4-601 

 A300 B4-603 

 A300 B4-620 

 A300 B4-622 

 A300 C4-600 A300 C4-620 

 A300 B4-600R A300 B4-605R 

 A300 B4-622R 

 A300 C4-600R A300 C4-605R Variant F 

 A300 F4-600R A300 F4-605R 

 A300 F4-622R 

 A300-600ST N/A A300 F4-608ST 

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 A300-600 systems installations: 

Aircraft types Aircraft life 

Flight Hours (FH) Flight Cycles (FC) 

A300-600 89000 FH 51000FC 

A300-600ST 63000 FH 36000FC 

3. MODIFICATIONS/REPAIRS NOT DEVELOPPED 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 Organisation 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. 

4. ALTERNATIVE METHODS OF COMPLIANCE

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

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. 
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: APR 18/12 ALS PART 3-0 PAGE: 3 

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

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 aircraft 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. 

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. 
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: APR 18/12 ALS PART 3-0 PAGE: 4 

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

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. 

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 

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. 
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: APR 18/12 ALS PART 3-0 PAGE: 5 

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

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. CMRs 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. CMRs 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. CMRs 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. 

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. 
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: APR 18/12 ALS PART 3-0 PAGE: 6 

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

10. EXPLANATION OF ALS SUB-PART 3-1 AND SUB-PART 3-2 TABLE FORMAT

Rev 

code CMR Ref number CMR Cat. Task Description Interval

Related 

MRBR/MP 

task 

number 

Applicability

1 2 3 4 5 6.0 

6.1 7 

1 Rev Code

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

the A300-600 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 is used to differentiate CMR Tasks applicable to all A300-600 and to A300-

600ST specifically. ‘0’ stands for all A300-600 aircraft (including A300-600ST), ‘A’ 

stands for all A300-600 aircraft except A300-600ST and ‘S’ stands for tasks only 

applicable to A300-600ST, 

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

value, ‘G’ stands for GE engines, ‘P’ for PW engines), 

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

manufacturer is applicable to the program. As it is not applicable to A300-600 CMR 

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

− 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. 

6.0 Related MRBR task number (Sub-part 3-1 – A300-600 models) 

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

requirement in terms of maintenance procedure. Nevertheless, differences may exist 
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: APR 18/12 ALS PART 3-0 PAGE: 7 

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

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. 

6.1 Related MRBR task number (Sub-part 3-2 – A300-600ST) 

Not applicable. 

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 A300-600 aircraft (A300-600ST included). 

PRE nnnnn All A300-600 PRE MOD nnnnn. 

i.e. A300-600 that do not have MOD nnnnn embodied. 

POST nnnnn All A300-600 POST MOD nnnnn. 

i.e. A300-600 that do have MOD nnnnn embodied. 

POST nnnnn 

POST mmmmm 

All A300-600 POST MOD nnnnn and POST MOD mmmmm. 

i.e. A300-600 that do have MOD nnnnn and MOD mmmmm embodied. 

PW JT9D-7R4 

POST 12261 

Task applicable to all A300-600 aircraft equipped with Pratt & Whitney 

engines AND with MOD 12261 embodied. 

END OF SUB-PART 3-0 
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: APR 18/12 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-A0001-1-C CMR* PRESSURIZATION CONTROL 

REMOVE CABIN PRESSURE SAFETY VALVES FOR FUNCTIONAL CHECK IN SHOP AND OPERATIONAL CHECK OF SAFETY VALVES OPENING INDICATIONNOTE: 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

00450 FH 22.2

N 222000-A0002-1-C CMR* SPEED ATTITUDE CORRECTION (F.A.C) 

OPERATIONAL CHECK TO VERIFY OVERRIDING AND DISCONNECTION OF ELECTRICAL TRIM 

85000 FH 22.2

N 222000-A0003-1-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-A0004-1-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-A0001-1-C CMR* AC GENERATION 

OPERATIONAL CHECK OF AC ESSENTIAL CIRCUIT (GEN. 1 OR GEN. 2 OVERRIDE SUPPLY) NOTE: FIRST ACCOMPLISHMENT MUST BE CARRIED OUT NO LATER THAN 

 THE AIRCRAFT ACCUMULATING 75000 FH

04000 FH 24.2
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: APR 18/12 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-A0001-1-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 

00460 FH 26.1

26.1

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

OPERATIONAL CHECK OF ALL SMOKE DETECTION CHANNELS INCLUDING ASSOCIATED WARNINGS 

00400 FH 26.1

R 262300-A0001-1-C CMR** CARGO COMPARTMENT FIRE EXTINGUISHING 

SQUIB TEST 

00500 FH 26.2

R 262300-A0002-1-C CMR** CARGO COMPARTMENT FIRE EXTINGUISHING 

CHECK FIRING CIRCUIT CONTINUITY AND PERFORM OPERATIONAL CHECK 

OF LOW PRESSURE INDICATING CIRCUIT AND PRIORITY SWITCHING 

01600 FH 26.2

R 262300-A0002-2-C CMR** CARGO COMPARTMENT FIRE EXTINGUISHING 

CHECK FIRING CIRCUIT CONTINUITY AND PERFORM OPERATIONAL CHECK 

OF LOW PRESSURE INDICATING CIRCUIT AND PRIORITY SWITCHING 

08000 FH 26.2

N 262300-A0003-1-C CMR** CARGO COMPARTMENT FIRE EXTINGUISHING 

CHECK FIRING CIRCUIT CONTINUITY AND PERFORM OPERATIONAL CHECK 

OF LOW PRESSURE INDICATING CIRCUIT 

008000 FH 26.2

D 262300-A0004-1-C CMR** CARGO COMPARTMENT FIRE EXTINGUISHING

FUNCTIONAL CHECK OF PRESSURE REDUCING VALVE IN FLOW METERING

DEVICE

14000 FH 262

D 262300-A0005-1-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 262
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: APR 18/12 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 

N 262300-A0006-1-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-A0007-1-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 

04000 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 

00800 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.

00350 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 

00700 FH 27.1

R 271400-00005-1-C CMR** HYDRAULIC ACTUATION - TRIMMABLE HORIZONTAL STABILIZER 

FUNCTIONAL CHECK OF YELLOW PRIORITY VALVE (FOR TRIMMABLE HORIZONTAL STABILIZER ACTUATOR) AND FUNCTIONAL CHECK OF 

YELLOW SERVOCONTROLS PRIORITY FUNCTION (FLAPS PCU) 

16000 FH 27.1
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: APR 18/12 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 

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

OPERATIONAL CHECK OF PITCH CONTROL UNCOUPLING 

02000 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-A0001-1-C CMR* ARTIFICIAL FEEL (ELEVATOR) 

REMOVE PITCH ARTIFICIAL FEEL UNIT FOR OVERHAUL IN SHOP 

85000 FH 

 OR 

48000 FC 

(WHICHEVER 

OCCURS 

FIRST) 

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

OPERATIONAL CHECK WITH INDIVIDUAL HYDRAULIC SYSTEMS 

00700 FH 27.4

R 275000-00001-1-C CMR* FLAPS 

CHECK PRIMARY AND SECONDARY LOAD PATHS OF FLAP TRANSMISSION AND SCREW JACKS AND DETAILED INSPECTION OF PRIMARY AND SECONDARY SCREW JACK ATTACHMENTS 

06500 FC 27.5

275000-00002-1-C CMR** FLAPS 

LIFT AUGMENTING (SLATS AND KRUEGER FLAPS) READ LATERAL PANEL MFA “SFCC1 AND 2 BITE DISPLAY” NOTE: THIS TASK COVERS BOTHS FLAPS (27.50.00) AND SLATS (27.80.00) 

SYSTEMS 

00800 FH 27.5

27.8

275000-00003-1-C CMR** FLAPS 

LIFT AUGMENTING (SLATS AND KRUEGER FLAPS) OPERATIONAL CHECK OF SYS 1 AND SYS 2 NOTE: THIS TASK COVERS BOTHS FLAPS (27.50.00) AND SLATS (27.80.00) 

SYSTEMS 

00800 FH 27.5

27.8
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: APR 18/12 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 275000-00004-1-C CMR** FLAPS 

LIFT AUGMENTING (SLATS AND KRUEGER FLAPS) OPERATIONAL CHECK OF PRESSURE OFF BRAKES NOTE: THIS TASK COVERS BOTHS FLAPS (27.50.00) AND SLATS (27.80.00) 

SYSTEMS 

12000 FH 27.5

27.8

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

CHECK BACKLASH OF FLAP SCREW-JACK NO-BACK DEVICE, SCREWJACKS 4, 5 AND 6 

12000 FC 27.5

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

DETAILED INSPECTION OF THE CASINGS OF ALL FLAP DOWNDRIVE GEARBOXES, JACKHEADS AND SCREW NUTS, AND TEE GEARBOX AND BEVEL BOX FOR FLAP SCREWJACKS N°1 

16000 FC 27.5

R 276000-A0001-1-C CMR** SPOILERS AND SPEED BRAKES 

OPERATIONAL CHECK OF GROUND SPOILER ELECTRICAL CIRCUIT 

00500 FH 27.6

R 282200-A0001-1-C CMR** TANK ISOLATION SYSTEM 

OPERATIONAL CHECK OF TRIM TANK ISOLATION VALVE MANUAL CLOSING 

INCLUDING INDICATION 

02000 FH 28.2

282200-A0002-1-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-A0001-1-C CMR** FUEL TRANSFER (CG) CONTROL 

OPERATIONAL CHECK OF MANUAL FORWARD TRANSFER CONTROL 

04500 FH 28.2
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: APR 18/12 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 

282800-00001-1-C CMR** AUXILIARY CARGO TANKS SYSTEM 

GENERAL VISUAL INSPECTION OF FLAMESHIELD, BAY SIDEWALLS AND PIPE 

COLLARS FOR DAMAGE AND SECURITY (ACTS FITTED) NOTE: TASK APPLICABLE TO MSN 354 AND 374 ONLY 

00500 FC 

282800-00002-1-C CMR** AUXILIARY CARGO TANKS SYSTEM 

OPERATIONAL CHECK OF ACT/CTR TANK INCORRECT FUEL DISTRIBUTION WARNING (DIRECT FROM CTR TK 12T AND ACT LO LEVEL SENSORS) NOTE: TASK APPLICABLE TO MSN 354 AND 374 ONLY 

08000 FH 

282800-00003-1-C CMR** AUXILIARY CARGO TANKS SYSTEM 

SYSTEM FUNCTION AND PRESSURE TEST USING TAPPINGS IN THE AIR SUPPLY SYSTEM NOTE: TASK APPLICABLE TO MSN 354 AND 374 ONLY 

08000 FH 

282800-00004-1-C CMR** AUXILIARY CARGO TANKS SYSTEM 

FUNCTIONAL CHECK OF THE AUXILIARY TANKS PRESSURE RELIEF VALVE (IN THE CENTRE TANK) NOTE: TASK APPLICABLE TO MSN 354 AND 374 ONLY 

08000 FH 

282800-00005-1-C CMR** AUXILIARY CARGO TANKS SYSTEM 

CHECK FOR GENERAL CONDITION AND SECURITY OF DRAIN/VENT SYSTEM PIPES, HOSES AND FLOOR DRAINS, AND FOR CONTAMINATION OF FLOOR DRAINS AND BILGES BY FUEL NOTE: TASK APPLICABLE TO MSN 354 AND 374 ONLY 

08000 FH 

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
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: APR 18/12 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 

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-A0001-1-C CMR** CG CONTROL SYSTEM 

OPERATIONAL CHECK OF AFT CG WARNING USING DADC BITE 

04000 FH 31.4

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

OPERATIONAL CHECK OF LANDING GEAR UPLOCK MECHANICAL CONTROL 

12 MO 32.3

N 323000-A0002-1-C CMR* EXTENSION AND RETRACTION/POSITION AND WARNING 

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

 THE AIRCRAFT ACCUMULATING 75000 FH 

00500 FH 32.3

N 323000-A0003-1-C CMR* EXTENSION AND RETRACTION/POSITION AND WARNING 

OPERATIONAL CHECK OF - RETRACTION REDUNDANCY ON SYSTEM 1 AND SYSTEM 2 - RETRACTION INHIBITION ON SYSTEM 1 AND SYSTEM 2 NOTE: FIRST ACCOMPLISHMENT MUST BE CARRIED OUT NO LATER THAN 

 THE AIRCRAFT ACCUMULATING 75000 FH 

02300 FH 32.3

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

OPERATIONAL CHECK OF DECOMPRESSION FLAP RELEASE MECHANISM 

11000 FH 52.5

R 730000-0P001-1-C CMR** ENGINE FUEL AND CONTROL 

INTERROGATE FADEC (FADEC GROUND AND BITE TEST) 

01000 FH 73.0
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: APR 18/12 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 

FUNCTIONAL CHECK OF THE SYNCHRONISING SHAFT LOCK 

07000 FH 78.3

PW 

78.3

JT9D

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

SELECTOR VALVE STOW LATCHING FORCE CHECK 

07000 FH 

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

VISUAL INSPECTION OF THE TRANSLATING SLEEVE COMPRESSION SEAL 

07000 FH 

D 783100-0G001-1-C CMR** THRUST REVERSER CONTROL/ACTUATION SYSTEM 

LOCKING ACTUATOR ASSEMBLY BRAKE HOLDING TORQUE CHECKNOTE: CMR WILL BE CANCELLED AFTER INCLUSION OF THIS TASK IN 

EXISTING HEALTH CHECK MANDATED THROUGH FAA AD 99-18-20 (COVERED BY CN 1999-422-IMP(B))

NOTE: CMR DELETED BECAUSE CMR REQUIREMENT IS SUPERSEDED BY 

FAA AD 2008-02-17 

7000 FH 78.3

FO

8

R 783100-0G002-1-C CMR** THRUST REVERSER CONTROL/ACTUATION SYSTEM 

THRUST REVERSER ELECTRICAL CHECK COMPRISING:  - THIRD LOCKS AND DUAL RELAYS TEST  - THRUST LEVERS DISAGREE TEST  - LANDING GEAR GROUND FUNCTION TEST (CMR INCLUDES REQUIREMENTS OF MRB REPORT TASK 78.31.00/02 FOR 

CF6-80C2 AND TASK 78.31.00/04 FOR CF6-80C2A5F) 

07000 FH 

END OF SUB-PART 3-1 
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: APR 18/12 ALS PART 3-2 PAGE: 1 

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

Sub-part 3-2: CMR TASKS SPECIFIC TO A300-600ST

Introduction

CMRs applicable to the A300-600ST were originally promulgated in document ‘A300-600ST 

Equivalent Certification Requirements’ reference SATIC/PS/OS-083/95. The last version was 

Issue 3 dated 01-Mar-1997. Those CMRs specific to the A300-600ST have subsequently been 

transferred to a new Section 3 of the A300-600 CMR document. This permitted the previous 

document to be cancelled. 

With the exception of task 272300 concerning the VLA, all the CMRs indicated in this Section 

were defined by a process agreed between SATIC and DGAC. Airbus has not revisited this 

determination and thus cannot state that the same result would have been obtained by using 

the CMR selection methodology agreed for the basic A300-600 type. 

Contrary to Sections 1 and 2, CMRs identified in Section 3 were not reflected in the Airbus 

A300-600 Maintenance Planning Document. It is the operator’s responsibility to ensure that the 

CMRs are introduced into their approved maintenance schedule. 

The term ‘test’ used in the SATIC document has been replaced by ‘check’ in this Section for 

consistency with Sections 1 and 2. No technical change is to be inferred by this rewording. 

Those CMRs specific to the A300-600ST are now transferred and reformatted into the following 

table of the sub-part 3-2. 

Structural Inspections

Section 2 of the SATIC document addressed Structural Inspections. Though these normally are 

not appropriate for inclusion in the CMR document, for the purposes of recording the 

requirement in an approved A300-600ST Type Certification document, the text of the original 

Section 2 is repeated hereunder: 

Structures maintenance tasks and their associated inspection thresholds and intervals 

arising from damage tolerance evaluation (FAR 25.571 and CRI C04) are given in the 

A300-600ST Maintenance Program. 

The following applies to the fatigue related inspections, these being the Structural 

Significant Items having the inspection thresholds and intervals expressed in flight cycles. 

The inspection threshold and repeat interval for the Structural Significant Items (SSIs) that 

are required to be inspected cannot be increased above the values quoted in the A300-

600ST Maintenance Program unless advised by the manufacturer following approval by the 

Certification Authority. 
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: APR 18/12 ALS PART 3-2 

EASA APPROVED 

©AIRBUS SAS 2012. All rights reserved. Confidential and proprietary document.Sub-part 3-2 CMR TASKS (Specific to A300-600ST)

Rev 

Code CMR Ref number CMR Cat. Task Description Interval Relat

Task 

 213000-S0001-1-C CMR* PRESSURIZATION CONTROL 

FUNCTIONAL CHECK OF SAFETY VALVES PNEUMATIC DEVICES AND OPERATIONAL TEST OF SAFETY VALVES OPENING 

07000 FH 

 255900-S0001-1-C CMR* MAIN DECK CARGO LOADING SYSTEM 

VISUAL CHECK OF PLUs AND LOCKING PAWLS WITH SPECIAL ATTENTION TO PLU ATTACHMENT BOLTS 

00400 FH 

 261500-S0001-1-C CMR** AVIONICS COMPARTMENT SMOKE DETECTION 

CARGO COMPARTMENT SMOKE DETECTION OPERATIONAL CHECK OF ALL SMOKE DETECTION CHANNELS INCLUDING ASSOCIATED WARNINGS AND INTEGRATED FANS NOTE: THIS SUPERSEDES CMR TWO STAR TASK 261500-A0001-1-C IN SUBPART 3-1 

01200 FH 

 272300-S0001-1-C CMR** ARTIFICIAL FEEL AND RUDDER TRAVEL LIMITING 

OPERATIONAL CHECK OF VARIABLE LEVER ARM (VLA) ACTUATORS SOLENOID VALVES EV2 

02000 FH 

 273600-S0001-1-C CMR* STALL WARNING 

OPERATIONAL CHECK OF STICK PUSHER SYSTEM 

DAILY 

 276000-S0001-1-C CMR** SPOILERS AND SPEEDBRAKES 

OPERATIONAL CHECK OF GROUND SPOILER ELECTRICAL CIRCUIT NOTE: THIS SUPERSEDES CMR TWO STAR 276000-A0001-1-C IN SUB-PART 

3-1 

00350 FH 

 282100-S0001-1-C CMR* FUEL PUMP SYSTEM 

OPERATIONAL CHECK TO CONFIRM FUEL FLOW FROM OUTER TANKS 

03000 FH 
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: APR 18/12 ALS PART 3-2 

EASA APPROVED 

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

Rev 

Code CMR Ref number CMR Cat. Task Description Interval Relat

Task 

 523700-S0001-1-C CMR** MAIN CARGO DOOR 

FUNCTIONAL CHECK OF MCD OVERCENTERING DEVICES 

07200 FH 

 523700-S0002-1-C CMR** MAIN CARGO DOOR 

FUNCTIONAL CHECK OF MCD LATCHING MECHANISM 

05600 FH 

END OF SUB-PART 3-2 
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: APR 18/12 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 A300-600 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 A300-600 CMR Document 

and A300-600 ALS Part 3. 

Issue Date Summary of Changes (CMR Document)

1 

16 Mar 88 

− First Issue 

2 

25 Nov 88 

− A300B4-622R added to section 0 para (3). 

− Introduction of CMR associated with FADEC interrogation (PW4000). 

3 

06 Mar 89 

− A300B4-622 added to Section 0 para (3) 

4 

06 Apr 94 

− Introduction of changes arising from Feb 1992 revision to MRB Document 

− .A300F4-605R added to Section 0 para (3). 

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

changed. Section 2 simplified. 

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

Extinguishing Flow Limiting Device and consequent wording change to existing 

Pre Mod task. 

5 

26 May 95 

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

applicable only on aircraft Pre Mod 10778/SB 31-6051 

− To increase interval of FADEC interrogation task 73.21.01 from 500 FH to 1000 

FH. 

6 

01 Sep 98 

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

− Section 2 ‘Structural Inspections’ removed from CMR document 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 0, Para 2 ‘Definitions’ deleted. 

− Section 1 retitled ‘CMR “One Star” tasks’ and Section 2 retitled ‘CMR “Two Star” 

tasks’. 

− Reference numbers to corresponding MRB Report task numbers inserted. 

− 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 
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: APR 18/12 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-2 

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

Issue Date Summary of Changes (CMR Document)

6 

01 Sep 98 

(continued) 

• 262300 SQUIB test 

• 276000 Operational check 

− Usage parameter 'LDGS' replaced by ‘FC'. 

7 

11 Jun 99 

− A300C4-605R variant F added to Section 0 para 2 

8 

03 Jul 00 

− A300F4-622R added to Section 0 para 2 

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

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

9 

07 Fev 02 

− Section 0. A300F4-608ST added to Applicability paragraph. In Scope paragraph, 

reference to AMM Chapter 05 deleted and replaced by MPD Section 9.1. Reference 

to A300F4-608ST Data Sheet added in final paragraph. 

− Incorporate new Section 3 to address CMRs specific to A300F4-608ST. This 

supersedes doc SATIC/PS/OS-083/95. One technical change from previous 

document, this being the addition of Two Star CMR 272300 associated with 

installation of modified VLA (Mod 19505) 

10 

31 Jan 03 

− Section 2. 521100. New Two Star task added associated with cockpit door 

decompression flap (Mod 12693) 

− Section 0 revised to include modified para 4 and new para 5 

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

modified by this change 

11 

25 Jun 04 

− 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. Reference to Mod 12683 and 

Mod 12716 (SB-25-6173) added 

− Section 2. 783100. Two new Two Star tasks added associated with GE CF6-80 

thrust reverser ‘third line of defence’ (embodied with Mod 12511 or Mod 12512) 

12 

18 Feb 05 

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

reworded for clarification 

− Section 0. Applicability corrected from A300C4-622/A300C4-622R to A300B4-

622/A300B4-622R 

− Section 2. MSI 314600. Reference to mod number corrected from 19778 to 10778. 

− 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. 

− Section 2. MSI 783100 (GE). Reference to mod 19541/SB 78-9002 added in thrust 

reverser electrical check 

13 

18 Apr 12 

− Last issue: the content of A300-600 CMR Document (Referenced AI/ST5/829/85), 

applicable to all A300-600 models, has been transferred to the A300-600 

Airworthiness Limitations Section (ALS) Part 3 Certification Maintenance 

Requirements (CMR). 

 
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: APR 18/12 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-3 

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

Revision 

Date Summary of Changes (ALS Part 3 - CMR)

00 

18 Apr 12 

ALS Part 3 has been reformatted, compared to A300-600 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 and 3-2, 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 A300-600 

systems installations 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 A300-600 Certification Maintenance 

Requirements (CMR) Document (Referenced AI/ST5/829/85) applicable to A300-600 

models, has been transferred to the A300-600 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 H25.4 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 
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: APR 18/12 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-4 

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

Revision 

Date Summary of Changes (ALS Part 3 - CMR)

00 

18 Apr 12

(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: “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 and 3-2

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

• 213000-A0001-1-C 

• 222000-A0002-1-C 

• 222000-A0003-1-C 

• 222000-A0004-1-C 

• 242000-A0001-1-C 

• 273300-A0001-1-C 

• 323000-A0002-1-C 

• 323000-A0003-1-C 

− CMR task 261500-A0001-1-C: task interval escalated from 400FH to 460FH. 
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: APR 18/12 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-5 

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

Revision 

Date Summary of Changes (ALS Part 3 - CMR)

00 

18 Apr 12

(continued)

− CMR task 262300-A0001-1-C: task interval escalated from 400FH to 500FH. 

− CMR tasks 262300-A0002-2-C and 262300-A0003-1-C: original CMR task split into these 

two CMR tasks in order to avoid conflict with latest MRBR changes. 

− New CMR 262300-A0006-1-C merges the following two previous CMR Two Star tasks in 

order to reflect latest MRBR changes: 

• Functional check of pressure reducing valve in Flow Metering Device (with mod 

6403). (MRB Report task 262300-9) at 14000FH, and 

• 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 14000FH 

− CMR task 262300-A0007-1-C, applicability updated to reflect latest MRBR change. 

− Deletion of SB reference in the applicability column for CMR tasks 314600-A0001-1-C, 

525111-00001-1-C, 783000-0P001-1-C, 783000-0P002-1-C, 783000-0P003-1-C and 

783100-0G002-1-C, 

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

− CMR task 276000-A0001-1-C: task interval escalated from 400FH to 500FH. 

− CMR task 282200-A0001-1-C: task interval escalated from 1600FH to 2000FH. 

− CMR task 282600-A0001-1-C: task interval escalated from 4000FH to 4500FH. 

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

to reflect latest MRBR changes. 

− CMR task 730000-0P0001-1-C: task description (reference MSI) and related MRBR task 

number updated in order to reflect latest MRBR changes. 

− CMR task 783000-0P0001-1-C: related MRBR task number updated in order to reflect 

latest MRBR changes. 

− CMR task 783100-0G001-1-C deleted since CMR requirement is superseded by FAA AD 

2008-02-17 requirement. 

− Following re-numbering of MRB tasks within A300-600 MRB Report Revision 06, related 

MRBR Task Number have been revised for the following CMR tasks: 

• 271400-00001-1-C 

• 271400-00002-1-C 

• 271400-00003-1-C 

• 271400-00004-1-C 

• 271400-00005-1-C 

• 275000-00001-1-C 

• 275000-00004-1-C 

• 275000-00005-1-C 

• 275000-00006-1-C 

• 323000-00001-1-C 
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 2 - ABBREVIATIONS

ISSUE: APR 18/12 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 

MCD Main Cargo Door 

MFA Memorized Fault Annunciator 

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 
A300-600 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 2 - ABBREVIATIONS

ISSUE: APR 18/12 ALS PART 3 ABBREVIATIONS PAGE: APX2-2 

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

ABBREVIATION MEANING 

R Revised 

RAT Ram Air Turbine 

ROR Record Of Revisions 

SB Service Bulletins 

SFCC Slat/Flap Control Computer 

SYS System 

THS Trimmable Horizontal Stabilizer 

TOC Table Of Contents