AIRWORTHINESS LIMITATIONS SECTION 

REVISION: 00 

A340

ALS Part 3 

- 

Certification Maintenance 

Requirements 

(CMR)

© AIRBUS SAS 2008. 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. 
AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

LIST OF EFFECTIVE PAGES

PART MVT PAGE ISSUE PART MVT PAGE ISSUE

ISSUE: JUL 31/08 ALS PART 3 PAGE: 1-LEP 

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A340

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1 N 1-TOC JUL 31/08 

1 N 1-ROR JUL 31/08 

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ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

TABLE OF CONTENTS

SUBJECT PART

ISSUE: JUL 31/08 ALS PART 3 PAGE: 1-TOC 

©AIRBUS SAS 2008. All rights reserved. 

A340

LIST OF EFFECTIVE PAGES LEP 

TABLE OF CONTENT TOC 

RECORD OF REVISIONS ROR 

INTRODUCTION 3-0 

SCOPE 

APPLICABILITY 

ALTERNATIVE MEANS OF COMPLIANCE 

CRITERIA FOR IDENTIFICATION 

HANDLING OF CERTIFICATION MAINTENANCE REQUIREMENTS 

DEFINITIONS 

EXCEPTIONAL SHORT-TERM EXTENSIONS 

EXPLANATION OF ALS SUB-PART 3-1 TABLE FORMAT 

CMR TASKS 3-1 
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ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

RECORD OF REVISIONS

ISSUE: JUL 31/08 ALS PART 3 PAGE: 1-ROR 

EASA APPROVED 

©AIRBUS SAS 2008. All rights reserved. 

A340

The European Aviation Safety Agency (EASA) 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 JUL 31/08 

Note: The ALS Part 3 is covered by the Certification Document 00F050AM093/C01 

Revision 00 is approved by EASA under reference EASA.A.C.09970. 

REVISION 00 COMPLIANCE TIME:

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

comply with the maintenance requirements defined in the sub-part 3-1 of the A340 ALS 

Part 3 revision 00 from 31-Jul-2009 

2. From 31-Jul-2008 to 30-Jul-2009, it is mandatory to comply with the maintenance 

requirements defined in, either: 

− The CMR Document at issue 15, except as provided in paragraph 3. of this ROR, 

or, 

− The sub-part 3-1 of the A340 ALS Part 3 at revision 00. 

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

sub-part 3-1 of the A340 ALS Part 3 revision 00: 

CMR task 212100-00001-1-C must be performed at whichever of the following is reached 

later: 

− The accumulation of 2600 FH since the date of the Transfer of Title to the first operator 

of the aircraft, 

or 

− 800 FH/3 MO whichever comes first since the approval date of the A340 ALS Part 3 

Revision 00. 

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

previous accomplishment date. 
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A340

Sub-part 3-0 INTRODUCTION

From revision 16 and on, the content of 

A340 Certification Maintenance Requirements (CMR) Document 

(Referenced 955.3019/92) 

applicable to A340 models, has been transferred to the 

A340 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 25.4 of Joint Aviation Requirements (JAR) 25 

appendix H, CMR’s 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 times for CMR task intervals are defined in para 6 of this 

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

procedure given in paragraph 5 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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A340

2. APPLICABILITY

The document covers the following A340 models: 

A340-211 A340-311 A340-541 A340-642 

A340-212 A340-312 A340-542 A340-643 

A340-213 A340-313 

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

refer to the relevant Engine Manufacturer Chapter 05 manual. 

The CMR’s contained in the ALS Part 3 are valid up to the following Limit of Validity (LOV): 

Aircraft & Weight Variant (WV) Series Flight Hours (FH) 

A340-200 series 80 000FH 

A340-300 series excl. WV050’s 80 000FH 

A340-300 series WV050’s 100 000 FH 

A340-500 series 100 000 FH 

A340-600 series 100 000 FH 

Note: MOD 49144 is used to identify WV050 series aircraft since this modification cannot be 

retrofitted on WV000, WV010 and WV020 series aircraft. 

3. ALTERNATIVE MEANS OF COMPLIANCE

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

4. 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. JAR 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 CMR’s: 

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

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

− 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. 
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A340

5. 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. 

6. 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. 
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7. 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. 
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A340

8. 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. 

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 
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A340

9. 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 A340 ALS Part 3: 

− 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 A340-200/300 and A340-500/600 CMRs. ‘A’ is used for 

A340-200/300 CMRs, ‘B’ for A340-500/600 and ‘0’ for CMRs applicable to both,, 

− 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 (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. 

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. 
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A340

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 

PRE nnnnn Task applicable to: all A340 models PRE MOD nnnnn 

i.e. Aircraft which do not have mod nnnnn embodied. 

POST nnnnn Task applicable to: all A340 models POST MOD nnnnn 

i.e. to Aircraft which do have mod nnnnn embodied. 

POST nnnnn 

POST mmmmm 

All A340 models POST MOD nnnnn and POST MOD mmmmm. 

i.e. A340 that do have MOD nnnnn and MOD mmmmm embodied. 

A340-xxx 

PRE nnnnn 

Task applicable to A340-xxx that do not have mod nnnnn embodied. 

A340-xxx 

POST nnnnn 

Task applicable to A340-xxx that do have mod nnnnn embodied. 

A340-200 

OR 

A340-300 

Task applicable to all A340-200 or to all A340-300 aircraft. 

A340-200 

OR 

A340-300 

PRE 49144 

Task applicable to all A340-200 or to A340-300 aircraft without modification 

49144 embodied. 

A340-200 

POST 40379 

OR 

A340-300 

POST 40379 

Task applicable to A340-200 with modification 40379 embodied or A340-

300 with modification 40379 embodied. 

A340-200 

POST 44442 

OR 

A340-300 

POST 44442 

PRE 49144 

Task applicable to A340-200 with modification 44442 embodied or A340-

300 with modification 44442 embodied and without modification 49144 

embodied 

POST 50014 

(25-4181) 

(25-4205) 

Task applicable to all A340-200, all A340-300, all A340-500 or all A340-

600 with modification 50014 embodied. 

(25-4181) and (25-4205) are the Service Bulletins reference associated to 

the modification. 
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EASA APPROVED 

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A340

Sub-part 3-1 CMR TASKS

Rev 

code 

CMR Ref 

number 

CMR 

Cat. Task Description Interval 

N 212100-00001-1-C CMR** CABIN AIR DISTRIBUTION AND RECIRCULATION 

OPERATIONAL CHECK TO VERIFY AUTOMATIC AND MANUAL CLOSING OF BULK CREW REST COMPARTMENT ISOLATION VALVES 

2600 FH 

212800-A0001-1-C CMR** LOWER DECK CARGO COMPARTMENT HEATING, VENTILATION AND COOLING 

(FWD, AFT AND BULK) OPERATIONAL CHECK TO VERIFY AUTOMATIC CLOSING OF ISOLATION VALVES AND SHUT-OFF OF EXTRACTION FANS IN CASE OF SMOKE WARNING

2500 FH 

 212800-A0001-2-C CMR** LOWER DECK CARGO COMPARTMENT HEATING, VENTILATION AND COOLING 

(FWD, AFT AND BULK) OPERATIONAL CHECK TO VERIFY AUTOMATIC CLOSING OF ISOLATION VALVES AND SHUT-OFF OF EXTRACTION FANS IN CASE OF SMOKE WARNING 

2350 FH 

R 212800-A0002-1-C CMR** LOWER DECK CARGO COMPARTMENT HEATING, VENTILATION AND COOLING 

(FWD, AFT AND BULK) OPERATIONAL CHECK TO VERIFY AUTOMATIC CLOSING OF COLD AIR VALVE IN CASE OF SMOKE WARNING 

2500 FH 
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A340

Rev 

code 

CMR Ref 

number 

CMR 

Cat. Task Description Interval 

R 212800-A0002-2-C CMR** LOWER DECK CARGO COMPARTMENT HEATING, VENTILATION AND COOLING 

(FWD, AFT AND BULK) OPERATIONAL CHECK TO VERIFY AUTOMATIC CLOSING OF COLD AIR VALVE IN CASE OF SMOKE WARNING 

2350 FH 

R 212800-A0003-1-C CMR** LOWER DECK CARGO COMPARTMENT HEATING, VENTILATION AND COOLING 

(FWD, AFT AND BULK) OPERATIONAL CHECK TO VERIFY AUTOMATIC CLOSING OF ISOLATION VALVE OF CREW REST ROOM (UNDER FLOOR) IN CASE OF SMOKE WARNING 

1600 FH 

212800-B0001-1-C CMR** LOWER DECK CARGO COMPARTMENT HEATING, VENTILATION AND COOLING 

(FWD, AFT AND BULK) OPERATIONAL CHECK TO VERIFY AUTOMATIC CLOSING OF ISOLATION VALVE OF CREW REST ROOM (UNDER FLOOR) IN CASE OF SMOKE WARNING 

1850 FH 

213100-A0001-1-C CMR** PRESSURE CONTROL AND MONITORING 

FUNCTIONAL CHECK OF POSITIVE AND NEGATIVE DELTA P PROTECTION OF SAFETY VALVES 

68000 FH 

213100-B0001-1-C CMR** PRESSURE CONTROL AND MONITORING 

FUNCTIONAL CHECK OF POSITIVE AND NEGATIVE DELTA P PROTECTION OF SAFETY VALVES 

72000 FH 

242000-00001-1-C CMR* AC GENERATION 

OPERATIONAL CHECK OF STATIC INVERTER AND DC ESS BUS SUPPLY 

600 FH 
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A340

Rev 

code 

CMR Ref 

number 

CMR 

Cat. Task Description Interval 

R 242000-A0001-1-C CMR** AC GENERATION 

OPERATIONAL CHECK OF EMERGENCY GENERATION SYSTEM 

800 FH 

242000-B0001-1-C CMR** AC GENERATION 

OPERATIONAL CHECK OF EMERGENCY GENERATION SYSTEM 

1400 FH 

242000-A0002-1-C CMR** AC GENERATION 

OPERATIONAL CHECK OF EMERGENCY GENERATOR MANUAL CONNECTION 

10000 FH 

242000-B0002-1-C CMR** AC GENERATION 

OPERATIONAL CHECK OF EMERGENCY GENERATOR MANUAL CONNECTION 

20000 FH 

242000-B0003-1-C CMR** AC GENERATION 

OPERATIONAL CHECK OF EMERGENCY GENERATOR AUTOMATIC CONNECTION 

10000 FH 

242000-B0004-1-C CMR** AC GENERATION 

OPERATIONAL CHECK OF CSM/G DISCONNECTION WITH SIMULATED ENGINES FLAMED OUT CONDITION AND SLATS EXTENDED 

10000 FH 

243000-B0001-1-C CMR** DC GENERATION 

OPERATIONAL CHECK OF DC MAIN GENERATION SWITCHING 

10000 FH 

256200-B0001-1-C CMR** CABIN ESCAPE FACILITIES 

OPERATIONAL CHECK OF THE ELECTRICAL CIRCUIT INCLUDING SQUIB 

38000 FH 

262300-A0001-1-C CMR** LOWER DECK CARGO COMPARTMENT FIRE EXTINGUISHING (FWD, AFT AND 

BULK) FUNCTIONAL CHECK OF PRESSURE REDUCER 

14000 FH 
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A340

Rev 

code 

CMR Ref 

number 

CMR 

Cat. Task Description Interval 

262300-B0001-1-C CMR** LOWER DECK CARGO COMPARTMENT FIRE EXTINGUISHING (FWD, AFT AND 

BULK) FUNCTIONAL CHECK OF PRESSURE REDUCER 

30000 FH 

R 262300-B0001-2-C CMR** LOWER DECK CARGO COMPARTMENT FIRE EXTINGUISHING (FWD, AFT AND 

BULK) FUNCTIONAL CHECK OF PRESSURE REDUCER 

17000 FH 

262300-A0002-1-C CMR** LOWER DECK CARGO COMPARTMENT FIRE EXTINGUISHING (FWD, AFT AND 

BULK) DETAILED INSPECTION OF RESTRICTOR, HALON FILTER AND CHECK VALVE 

14000 FH 

262300-B0002-1-C CMR** LOWER DECK CARGO COMPARTMENT FIRE EXTINGUISHING (FWD, AFT AND 

BULK) DETAILED INSPECTION OF RESTRICTOR, HALON FILTER AND CHECK VALVE 

30000 FH 

R 262300-B0002-2-C CMR** LOWER DECK CARGO COMPARTMENT FIRE EXTINGUISHING (FWD, AFT AND 

BULK) DETAILED INSPECTION OF RESTRICTOR, HALON FILTER AND CHECK VALVE 

17000 FH 

R 262300-B0003-1-C CMR** LOWER DECK CARGO COMPARTMENT FIRE EXTINGUISHING (FWD, AFT AND 

BULK) FUNCTIONAL CHECK OF FLOW METERING COMPACT UNIT (FMCU) 

20000 FH 

R 262300-B0004-1-C CMR** LOWER DECK CARGO COMPARTMENT FIRE EXTINGUISHING (FWD, AFT AND 

BULK) DETAILED INSPECTION OF FLOW METERING COMPACT UNIT (RESTRICTOR, HALON FILTER AND CHECK VALVE) 

20000 FH 
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Rev 

code 

CMR Ref 

number 

CMR 

Cat. Task Description Interval 

271400-00001-1-C CMR** AILERON AND HYDRAULIC ACTUATION 

OPERATIONAL CHECK OF AILERON DAMPING MEASUREMENT BY BITE 

10000 FH 

272100-A0001-1-C CMR** RUDDER MECHANICAL CONTROL 

OPERATIONAL CHECK OF BACK-UP YAW DAMPER 

2400 FH 

 272100-A0002-1-C CMR** RUDDER MECHANICAL CONTROL 

VISUAL CHECK TO CONFIRM INTEGRITY OF CONTROL ROD (ITEM 220 IN IPC 272147-1A) IN PTLU LINKAGE 

20000 FH 

R 272400-A0001-1-C CMR** RUDDER HYDRAULIC ACTUATION 

FUNCTIONAL CHECK OF INDIVIDUAL RUDDER SERVOCONTROLS 

50000FH 

 272400-00001-1-C CMR** RUDDER HYDRAULIC ACTUATION 

OPERATIONAL CHECK OF RUDDER DAMPING MEASUREMENT BY BITE 

10000 FH 

 273400-A0001-1-C CMR** ELEVATOR AND HYDRAULIC ACTUATION 

OPERATIONAL CHECK OF ELEVATOR DAMPING MEASUREMENT BY BITE 

10000 FH 

273400-B0001-1-C CMR** ELEVATOR AND HYDRAULIC ACTUATION 

OPERATIONAL CHECK OF ELEVATOR DAMPING MEASUREMENT BY BITE 

5000 FH 
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Rev 

code 

CMR Ref 

number 

CMR 

Cat. Task Description Interval 

R 274000-A0001-1-C CMR* TRIMMABLE HORIZONTAL STABILIZER 

OPERATIONAL CHECK OF THS ACTUATOR JAMMING PROTECTION DEVICE 

5600 FH 

 274000-A0001-2-C CMR* TRIMMABLE HORIZONTAL STABILIZER 

OPERATIONAL CHECK OF THS ACTUATOR JAMMING PROTECTION DEVICE 

10000 FH 

 274000-B0001-1-C CMR** TRIMMABLE HORIZONTAL STABILIZER 

OPERATIONAL CHECK OF THS ACTUATOR JAMMING PROTECTION DEVICE 

10000 FH 

R 274000-B0002-1-C CMR* TRIMMABLE HORIZONTAL STABILIZER 

INSPECTION OF THE BALLSCREW ASSEMBLY FOR INTEGRITY OF THE PRIMARY AND SECONDARY LOAD PATHS NOTE: TASK NOT APPLICABLE ONLY IF - COMBINATION OF THE THREE MODIFICATIONS 54882, 52191 AND 56058 ARE EMBODIED - OR RETROFIT SOLUTION MADE OF THE COMBINATION OF THE THREE MODIFICATIONS 54882 (SB 27-5030), 52268 (SB 92-5008) AND 56059 (SB 92-5008) ARE EMBODIED. 

700 FH 

 274000-B0003-1-C CMR* TRIMMABLE HORIZONTAL STABILIZER 

LUBRICATION OF THS ACTUATOR BALL SCREW NUT 

700 FH 

 274000-00001-1-C CMR** TRIMMABLE HORIZONTAL STABILIZER 

OPERATIONAL TEST OF THS ACTUATOR WITH INDIVIDUAL HYDRAULIC SYSTEMS 

800 FH 
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A340

Rev 

code 

CMR Ref 

number 

CMR 

Cat. Task Description Interval 

N 274000-00002-1-C CMR* TRIMMABLE HORIZONTAL STABILIZER 

OPERATIONAL CHECK OF THSA CHECKABLE SHEAR PIN 

70000 FH 
AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: JUL 31/08 ALS PART 3-1 

EASA APPROVED 

©AIRBUS SAS 2008. All rights reserved. 

A340

Rev 

code 

CMR Ref 

number 

CMR 

Cat. Task Description Interval 

 279000-B0001-1-C CMR* ELECTRICAL FLIGHT CONTROL SYSTEM 

OPERATIONAL CHECK OF FCPCS AND FCSCS STANDBY SERVO LOOPS ON PITCH CONTROL 

800 FH 

 279000-A0001-1-C CMR** ELECTRICAL FLIGHT CONTROL SYSTEM 

OPERATIONAL CHECK OF FCPCS AND FCSCS STANDBY SERVO LOOPS ON PITCH CONTROL 

800 FH 

R 279000-A0002-1-C CMR** ELECTRICAL FLIGHT CONTROL SYSTEM 

OPERATIONAL CHECK OF GREEN SERVOCONTROLS TRAVEL SPEED LIMITATION WHEN RAT IS EXTENDED 

18 MO 

OR 

8000 FH 

(WHICHEVER 

COMES FIRST

 279000-B0002-1-C CMR** ELECTRICAL FLIGHT CONTROL SYSTEM 

OPERATIONAL CHECK OF GREEN SERVOCONTROLS TRAVEL SPEED LIMITATION WHEN RAT IS EXTENDED 

20000 FH 

 279000-A0003-1-C CMR** ELECTRICAL FLIGHT CONTROL SYSTEM 

OPERATIONAL CHECK OF FCPC2 AND THS ACTUATOR ELECTRICAL MOTOR 2 POWER SUPPLY 

10000 FH 

 282100-A0001-1-C CMR** MAIN FUEL PUMP SYSTEM 

OPERATIONAL CHECK TO VERIFY ISOLATION OF STANDBY PUMP 4 CONTROL WHEN MAIN PUMP 1 IS RUNNING IN ELECTRICAL EMERGENCY CONFIGURATION 

10000 FH 

 282100-B0001-1-C CMR** MAIN FUEL PUMP SYSTEM 

OPERATIONAL CHECK TO VERIFY ISOLATION OF MAIN FUEL PUMP 3 WHEN MAIN FUEL PUMP 2 IS RUNNING IN ELECTRICAL EMERGENCY CONFIGURATION 

10000 FH 
AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: JUL 31/08 ALS PART 3-1 

EASA APPROVED 

©AIRBUS SAS 2008. All rights reserved. 

A340

Rev 

code 

CMR Ref 

number 

CMR 

Cat. Task Description Interval 

 282300-B0001-1-C CMR* CROSSFEED SYSTEM 

OPERATIONAL CHECK OF CROSSFEED VALVE AND ASSOCIATED INDICATION USING INDIVIDUAL MOTORS FOLLOWED BY CHECK TO CONFIRM VALVES ARE OPEN NOTE: ACCOMPLISHMENT OF THIS TASK INCLUDES THE REQUIREMENTS OF MRB REPORT TASKS 282300-4 AND 282300-5 IF PERFORMED EVERY C-CHECK. 

10450 FH 

D 282300-B0002-1-C CMR* CROSSFEED SYSTEM 

OPERATIONAL CHECK OF INTERTANK VALVE POWER SUPPLY CHANGEOVER RELAYS CMR DELETED FURTHER TO ISSUANCE OF AD 2007-0279 WHICH SUPERSEDES ORIGINAL REQUIREMENT AT 8450FH FOR A340-500/600 PRE MOD 55293 

8450FH 

N 282300-B0002-2-C CMR* CROSSFEED SYSTEM 

OPERATIONAL CHECK OF INTERTANK VALVE POWER SUPPLY CHANGEOVER RELAYS 

26000FH 

 282400-B0001-1-C CMR** ENGINE LP FUEL SHUT-OF 

OPERATIONAL CHECK OF THE LP VALVE USING INDIVIDUAL MOTORS TO CHECK CORRECT ACTUATOR MOVEMENT AND CORRECT COCKPIT INDICATION 

10000 FH 

 282400-B0002-1-C CMR** ENGINE LP FUEL SHUT-OF 

OPERATIONAL CHECK TO CONFIRM LP VALVE ISOLATES FUEL SUPPLY TO ASSOCIATED ENGINE 

32000 FH 

 282600-B0001-1-C CMR** MAIN TRANSFER SYSTEM 

OPERATIONAL CHECK OF TRANSFER CONTROL VALVE ACTUATORS USING INDIVIDUAL MOTORS FOLLOWED BY CHECK THAT VALVES ARE PHYSICALLY FORWARD WHEN COMMANDED FORWARD 

13550 FH 
AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: JUL 31/08 ALS PART 3-1 

EASA APPROVED 

©AIRBUS SAS 2008. All rights reserved. 

A340

Rev 

code 

CMR Ref 

number 

CMR 

Cat. Task Description Interval 

 282600-B0001-2-C CMR** MAIN TRANSFER SYSTEM 

OPERATIONAL CHECK OF TRANSFER CONTROL VALVE ACTUATORS USING INDIVIDUAL MOTORS FOLLOWED BY CHECK THAT VALVES ARE PHYSICALLY FORWARD WHEN COMMANDED FORWARD 

42900 FH 

 282600-B0002-1-C CMR** MAIN TRANSFER SYSTEM 

OPERATIONAL CHECK TO CONFIRM THE RCT FUEL ISOLATION VALVE AND RCT TRANSFER VALVE PHYSICALLY SHUT WHEN COMMANDED SHUT 

17500 FH 

 282600-B0002-2-C CMR** MAIN TRANSFER SYSTEM 

OPERATIONAL CHECK TO CONFIRM THE RCT FUEL ISOLATION VALVE AND RCT TRANSFER VALVE PHYSICALLY SHUT WHEN COMMANDED SHUT 

37600 FH 

 282700-A0001-1-C CMR** TRIM TRANSFER SYSTEM 

OPERATIONAL CHECK TO CONFIRM CLOSURE OF VALVES FOLLOWING TRIM PIPE ISOLATION BY 3 POSITION SWITCH 

10000 FH 

 282700-00001-1-C CMR** TRIM TRANSFER SYSTEM 

OPERATIONAL CHECK TO CONFIRM CLOSURE OF VALVES FOLLOWING TRIM PIPE ISOLATION BY 3 POSITION SWITCH 

4000 FH 

 282800-A0001-1-C CMR** ADDITIONAL CENTRE TANK (MOD 42612 OR 44005) 

OPERATIONAL CHECK OF ACT MANUAL TRANSFER SYSTEM 

9700 ACT FH 
AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: JUL 31/08 ALS PART 3-1 

EASA APPROVED 

©AIRBUS SAS 2008. All rights reserved. 

A340

Rev 

code 

CMR Ref 

number 

CMR 

Cat. Task Description Interval 

 292000-A0001-1-C CMR** AUXILIARY HYDRAULIC POWER 

OPERATIONAL CHECK OF MANUAL RAT DEPLOYMENT, FOLLOWED BY FUNCTIONAL CHECK OF RAT OPERATION AND INSPECTION OF FILTER ELEMENT BY REFERENCE TO DIFFERENTIAL PRESSURE INDICATOR 

18 MO 

OR 

8000 FH 

(WHICHEVER 

COMES FIRST

 292000-B0001-1-C CMR** AUXILIARY HYDRAULIC POWER 

OPERATIONAL CHECK OF MANUAL RAT DEPLOYMENT, FOLLOWED BY FUNCTIONAL CHECK OF RAT OPERATION AND INSPECTION OF FILTER ELEMENT BY REFERENCE TO DIFFERENTIAL PRESSURE INDICATOR 

24 MO 

OR 

10000 FH 

(WHICHEVER 

COMES FIRST

 323000-B0001-1-C CMR* EXTENSION AND RETRACTION POSITION AND WARNING 

OPERATIONAL CHECK OF LANDING GEAR FREE-FALL SYSTEM FOR CORRECT OPERATION OF UP-LOCK RELEASE 

2025 FH 

 323000-B0002-1-C CMR* EXTENSION AND RETRACTION POSITION AND WARNING 

FUNCTIONAL CHECK OF LANDING GEAR FREE-FALL EXTENSION (AIRCRAFT ON JACKS) 

40000 FH 

 352002-A0001-1-C CMR** PASSENGER OXYGEN (GASEOUS) 

OPERATIONAL CHECK OF ENGINE BURST PROTECTION SYSTEM 

9500 FH 

 352002-00001-1-C CMR** PASSENGER OXYGEN (GASEOUS) 

OPERATIONAL CHECK OF ENGINE BURST PROTECTION SYSTEM 

15000 FH 
AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: JUL 31/08 ALS PART 3-1 

EASA APPROVED 

©AIRBUS SAS 2008. All rights reserved. 

A340

Rev 

code 

CMR Ref 

number 

CMR 

Cat. Task Description Interval 

 352002-A0002-1-C CMR** PASSENGER OXYGEN (GASEOUS) 

REMOVE PRESSURE REDUCERS FOR FUNCTIONAL CHECK IN THE SHOP 

15000 FH 

 352002-A0003-1-C CMR** PASSENGER OXYGEN (GASEOUS) 

OPERATIONAL CHECK OF OXYGEN CONTAINER OPENING AND VENT FUNCTION OF BLEED/VENT VALVE 

12500 FH 

 352002-A0004-1-C CMR** PASSENGER OXYGEN (GASEOUS) 

FUNCTIONAL CHECK OF PRESSURE HOLDING/DECAY CHARACTERISTICS OF OXYGEN DISTRIBUTION SYSTEM 

12500 FH 

 352002-A0005-1-C CMR** PASSENGER OXYGEN (GASEOUS) 

DETAILED INSPECTION OF OXYGEN MASK ASSEMBLIES 

12500 FH 

 352002-A0006-1-C CMR** PASSENGER OXYGEN (GASEOUS) 

REMOVE RISER LINE SHUT OFF VALVE FOR FUNCTIONAL CHECK 

25000 FH 

 352002-B0001-1-C CMR** PASSENGER OXYGEN (GASEOUS) 

REMOVE PRESSURE RELIEF VALVE FOR FUNCTIONAL CHECK 

40000 FH 
AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: JUL 31/08 ALS PART 3-1 

EASA APPROVED 

©AIRBUS SAS 2008. All rights reserved. 

A340

Rev 

code 

CMR Ref 

number 

CMR 

Cat. Task Description Interval 

 352002-B0002-1-C CMR** PASSENGER OXYGEN (GASEOUS) 

REMOVE PRESSURE REGULATOR FOR PRESSURE REGULATING AND LEAKAGE TEST IN THE SHOP 

16500 FH 

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

OPERATIONAL CHECK OF DECOMPRESSION FLAP RELEASE MECHANISM 

11000 FH 

 783100-A0001-1-C CMR** THRUST REVERSER CONTROL AND INDICATING 

OPERATIONAL CHECK OF ACTUATOR SECONDARY LOCKS 

8000 FH 

 783100-A0002-1-C CMR** THRUST REVERSER CONTROL AND INDICATING 

REMOVE RESTRICTOR/CHECK VALVE IN ADDITIONAL RETURN LINE FOR WORKSHOP CHECK 

25000 FH 

 783100-B0001-1-C CMR** THRUST REVERSER CONTROL AND INDICATING 

VISUAL CHECK OF THE ATTACHMENT OF THE ACTUATORS TO THE TRANSLATING SLEEVE 

15000 FH 

 783100-B0002-1-C CMR** THRUST REVERSER CONTROL AND INDICATING 

FUNCTIONAL CHECK OF THE THRUST REVERSER PRIMARY LOCKS, TERTIARY 

LOCKS AND SYNCHRO SHAFTS 

30000 FH 

END OF SUB-PART 3-1 
AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: JUL 31/08 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-1 

©AIRBUS SAS 2008. All rights reserved. 

A340

1- GENERAL

At the opportunity of the update of A340 CMR Document Issue 16, 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 A340 CMR Document and 

A340 ALS Part 3. 

Iss / Rev 

Date Summary of Changes (CMR Document)

1 

22 Dec 92 

− First Issue. 

2 

28 Jan 93 

− Incorporate changes arising from completion of SSA for primary flight controls and 

introduce CMR One Star task to check MLG delay valves. 

− Appendix modified for ATA 27 and ATA 71-80 

3 

9 Mar 94 

− Expand 'Applicability' to include A340-212 and A340-312. 

− Identify Mod/SB numbers which cancel FWC limited Class 3 faults 

4 

15 Mar 95 

− Expand "Applicability" to include A340-213 and A340-313. 

− Identify initial Mod/SB numbers that cancel time limited class 3 faults associated 

with FCDC Std earlier than L11 and FADEC Std earlier than C3C. 

− Identify 42501/SB 31-4011 as the initial mod/SB that cancels time limited Class 3 

faults associated with FWC Std earlier than L3.3. 

5 

7 Apr 95 

− MSI 242000. Interval of operational check of emergency generation system 

changed from 100 FH to 400 FH. CMR status changed from Two Star to One Star. 

− MSI 279000. Interval of operational check of standby servoloops on pitch control 

changed to 800FH if mod 41486 is embodied. 

6 

3 May 96 

− MSI 282800. New CMR associated with Mod 42612 required every 9700 ACT FH. 

− MSI 3230/6000. Note added to One Star CMR required every 2400 FC. 

− Ref. to 00F050A0003/CO1 added in Section 0, para 1. 

7 

22 Aug 97 

− 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 "Structural Inspection Requirements" 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. 
AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: JUL 31/08 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-2 

©AIRBUS SAS 2008. All rights reserved. 

A340

Iss / Rev 

Date Summary of Changes (CMR Document)

8 

7 May 98 

− MSI 451000. CMR One Star task cancelled since all aircraft are now 'Post Mod'. 

Appendix "Time Limited Class 3 Fault Messages" deleted. 

− MSI 242000. CMR Two Star task "Op Chk of static inverter". Interval increased from 

400 FH to 500 FH. 

− MSI 272100. New CMR Two Star task added to reflect Mod 44442. Interval 2000 FH.

− MSI 282700. Existing CMR Two Star task to confirm trim pipe isolation is now 

applicable only to Pre Mod 45649 aircraft. Equivalent task for Post Mod 45649 

aircraft is added with interval of 4000 FH. 

9 

1 Feb 02 

− MSI 27.21.00. Interval of Two Star CMR requiring visual check to confirm integrity of 

control rod in PTLU linkage (with Mod 44442) increased from 2000FH to 20000FH. 

− MSI 27.24.00. Interval of Two Star CMR requiring workshop check of rudder s/c 

internal seals increased from 40000FH to 46000FH. Ref to equivalent MRB Report 

task added. 

− In Section 0, reference to AMM Chapter 05 deleted and replaced by MPD Section 

9.1. Reference to Structural Inspection Requirements replaced by Airworthiness 

Limitation Items. 

10 

2 May 2002 

− Applicability extended to include A340-642. Dedicated Sections 1B and 2B created 

due to application of new selection methodology (as per AMJ 25-19). Previous 

Sections 1 and 2 re-titled 1A and 2A. 

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

11 

24 Jun 02 

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

modified by this change 

− Section 1A: MSI 32.30.00/32.60.00. Ref to Mod 43029 added 

− Section 2A: MSI 27.24.00. Ref to MRB Report task 272400-5 deleted following 

removal of task from MRBR in Mar 2002 revision. 

− Section 2A: MSI 28.28.00. Ref to Mod 44005 added. 

− Section 2B: MSI 25.51.00 LOWER DECK CARGO LOADING SYSTEM. Task 'GVI of 

XZ-latches' every 13700FH deleted. 

− Section 2B: MSI 26.23.00. MRB Report references for both tasks corrected 

− Section 2B: MSI 29.20.00. MRB Report reference corrected. 

− Section 2B: MSI 36.00.00. Wording of Class 3 fault messages corrected. 
AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: JUL 31/08 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-3 

©AIRBUS SAS 2008. All rights reserved. 

A340

Iss / Rev 

Date Summary of Changes (CMR Document)

12 

17 Oct 02 

− Applicability extended to include A340-541 

− MSI 242000. In Section 1A/2A, the task 'Operational check of emergency generation 

system' is re-categorised as Two Star with interval 700FH instead of One Star with 

interval of 400FH. 

− MSI 242000. In Section 1A/2A, the task 'Operational check of static inverter and DC 

ESS bus supply' is re-categorised as One Star with interval 600FH instead of Two 

Star with interval 500FH. 

− MSI 242000. In Section 2A, the interval of task 'Operational check of emergency 

generator manual connection' is increased from 8000FH to 10000FH. 

− MSI 3230/6000. In Section 1A, CMR One Star task to check delay valves in 

retraction lines is deleted. All MLG legs are now post mod. 

− MSI 282600. In Section 2B, new CMR Two Star task added specific to A340-500. 

'Operational check to confirm the RCT Fuel Isolation Valve and RCT Transfer Valve 

physically shut when commanded shut with interval 17500FH 

− MSI 282400. In Section 2B, interval of CMR Two Star task to confirm LP valve 

isolates fuel supply is increased from 5000FH to 6000FH. 

− MSI 360000. In Section 2B, the task to check for time limited Class 3 faults is now 

only applicable to aircraft without Mod 50969 

13 

28 Nov 03 

Section 0: 

− Scope. Notes added to explain status with respect to planned 100000FH Design 

Service Goal (DSG) for Weight Variant 50 series aircraft. 

− 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 1A

− One Star CMR 274000. 5000FH interval limitation is applicable only on aircraft 

having 80000FH DSG. For aircraft with 100000FH DSG the corresponding interval 

limitation is 10000FH 

Section 1B

− MSI 274000. Task title changed from ‘Check integrity of primary load paths of THSA 

ballscrew nut assembly during THS movement’. Task no longer requires THS 

movement. 

Section 2A: 

− Further to reformatting of the MRB Report, revised MRB Report task references 

quoted for the three tasks under MSI 2128/4300. 

− Four 'CMRs added (one in MSI 271400, one in MSI 273400 and two in MSI 279000) 

applicable to aircraft having DSG of 100000FH 

− MSI 272100. Applicability of the CMR associated with back-up yaw damper changed 

from All to Pre Mod 49144 

− MSI 272100. Applicability of CMR requiring a visual check of PTLU linkage is 

changed to clarify that task is not applicable on aircraft with electrical rudder control, 

ie ‘without Mod 49144’ added. 

− MSI 272400. Task ‘Remove rudder servocontrol for workshop check of internal 

seals’ replaced by on-aircraft Functional Check at the same interval. Task is not 

applicable on aircraft with electrical rudder control, ie ‘without Mod 49144’ added. 

MRB Report reference removed. 
AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: JUL 31/08 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-4 

©AIRBUS SAS 2008. All rights reserved. 

A340

Iss / Rev 

Date Summary of Changes (CMR Document)

13 (cont) − MSI 272400. New Two Star CMR added for aircraft with Mod 49144. Interval 

10000FH. 

− MSI 274000. MRB Report reference number added. 

− MSI 525111. New CMR added associated with cockpit door decompression flap. 

Applicable with either Mod 50014 or SB A340-25-4181embodied. Interval 11000FH 

Section 2B

− MSI 2128/43.00. New CMR added associated with underfloor crew rest room (Mod 

47937). 

− MSI 360000. CMR requiring check for presence of time limited BMC class 3 faults via 

MCDU deleted following embodiment of SB A340-36-5003 on all aircraft. 

− MSI 525111. New CMR added associated with cockpit door decompression flap. 

Applicable with either Mod 50014 or SB A340-25-4181 embodied. Interval 11000FH 

14 

19 Dec 05 

Document updated to address results of re-evaluation of SSAs at opportunity of 

consideration of 100000FH DSG (only ATA27 had been addressed in Iss 13). (in this 

summary, the term ‘basic’ refers to a/c with DSG of 80000FH and ‘enhanced’ refers to a/c 

with DSG of 100000FH) 

TOC. 

− Ref to A340-500 added 

Section 0

− Two paragraphs addressing intermediate assessment of 100000FH DSG deleted 

following completion of full review of all ATA chapters. 

− Paragraph relating to mandatory status of CMR document reworded for clarification 

− Applicability extended to include A340-643 

− Sentence clarifying that document addresses pre and post WV50 series added in 

Applicability paragraph 

− The word ‘content’ is added to paragraph 4.2 for clarification that ‘task’ does not 

include interval 

− Reference to ‘DGAC’ changed to ‘EASA’ in four places in paragraphs 4 and 5.

Section 2A (A340-200/300)

− MSI 214300. Interval of the task Operational check to verify automatic closing of 

isolation valves and shut-off of extraction fans in case of smoke warning decreases 

from 2500FH to 2350FH. Applicable to enhanced a/c. 

− MSI 214300. Interval of the task Operational check to verify automatic closing of cold 

air valve in case of smoke warning (with mod. 40097 decreases from 2500FH to 

2350FH. Applicable to enhanced a/c. 

− MSI 213100. New CMR Two Star added associated with delta P protection of safety 

valves. (CMR status applicable on aircraft having a DSG of 100000FH). Interval 

68000FH 

− MSI 262300. New CMR Two Star added associated with halon filter and check valve. 

(CMR status applicable on a/c having a DSG of 100000FH). Interval 14000FH 

− MSI 279000 CMR Two Star ‘Operational check of FCPCs and FCSCs standby 

servoloops on pitch control (without mod 41486) (MRB Report task 279000-3)’ 

deleted following embodiment of mod on all aircraft 
AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: JUL 31/08 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-5 

©AIRBUS SAS 2008. All rights reserved. 

A340

Iss / Rev 

Date Summary of Changes (CMR Document)

14 (cont) − MSI 279000 CMR Two Star. The words ‘with Mod 41486) deleted from 800FH task 

further to deletion of pre mod task (see above) 

− MSI 279000 CMR Two Star. The words ‘without Mod 44047’ are deleted from the 

10000FH task further to deletion of post mod task (see below) 

− MSI 279000. CMR Two Star ‘ Operational check of power supply of the FCSC2 (with 

Mod 44047). (CMR status applicable on aircraft having a DSG of 100000FH, ie those 

with Mod 49144) (MRB Report task 279000-11) has been deleted because it is only 

applicable to A330 

− MSI 352002. Seven new Two Star CMRs added relating to gaseous oxygen system 

(Post Mod 40257). Tasks are associated with: 

o Engine burst protection system. CMR status only applicable to enhanced 

a/c. Interval 15000FH 

o Oxygen container and bleed/vent valve. CMR status only applicable to basic 

a/c. Interval 12500FH 

o Pressure holding/decay. Only applicable to basic a/c. Interval 12500FH 

o Oxygen mask assemblies. Only applicable to basic a/c. Interval 12500FH 

o Riser line shut-off valve. Only applicable to basic a/c. Interval 25000FH 

o Engine burst protection. Only applicable to basic a/c. Interval 9500FH 

o Pressure reducer shop check. Only applicable on basic a/c. Interval 

15000FH 

− MSI 525111. MRB Report task number added 

Section 2B (A340-500/600):

− MSI 256200. The applicability of the task to A340-600 is added. 

− MSI 282400. Interval of task ‘Op check to confirm LP valve isolates fuel supply to associated 

engine’ reduced from 6000FH to 3500FH 

− MSI 352002. Three new Two Star CMRs added relating to gaseous oxygen system 

(Post Mod 48635 or 48728). Tasks are associated with: 

o Engine burst protection system.. Interval 15000FH 

o Pressure relief valve functional check. Interval 40000FH 

o Pressure regulator test in shop. Interval 16500FH 

− MSI 525111. MRB Report task number added 

15 

19 Jan 07 

CMR document reformatted. This document is divided into two main sections: 

− Section 0, which includes Introduction and generic paragraphs related to CMR 

− Section 1, which provides the list of CMR tasks in a single CMR table 

Section 0

− Issue 15 introduces the following information: 

o Introduction of paragraph titled “Transition periods for CMR introduced / 

modified in Issue 15” (ref. to § 1.1) 

o Applicability extended to include A340-542, 

o In paragraph 1.2-Applicability, addition of the Limit of Validity of CMR 

document for the different A340 models, 

o Addition of paragraphs 1.3 (Reserved) & 1.6-Definitions, 

o Addition of paragraph 1.8-Explanation of CMR table format, which details 

the new presentation of CMR tasks 

− Following wording modifications have been performed: 
AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: JUL 31/08 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-6 

©AIRBUS SAS 2008. All rights reserved. 

A340

Iss / Rev 

Date Summary of Changes (CMR Document)

15 (cont) o §1.1: Addition of the following sentence: “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.” 

o §1.1: Change “Non-compliance suspends the validity of the Airworthiness 

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

Airworthiness Certificate.” 

o §1.1: “agreed” added in the sentence “The identification of CMR...” 

o §1.1: “his national authorities” replaced by “the Authority of the State of 

aircraft registry” 

o §1.1: Last sentence changed into “Airworthiness Directives dedicated to 

specific concerns may override the specific requirement(s) given in this 

document.” 

o §1.4: “according to EASA agreed methodology” replaced by “in 

accordance with the EASA agreed methodology” 

o §1.4: “aircraft life” replaced by “Limit Of Validity” 

o §1.4: “his local authority” replaced by “the Authority of the State of aircraft 

registry” 

o §1.7.2: “(FC or LDGS)” replaced by “(FC or LDG)” 

o §1.7.3: “his local regulatory authority” replaced by “the Authority of the 

State of aircraft registry” 

Section 1

− CMR document Issue 15 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. Moreover CMR applicable to A340-200/300 

and A340-500/600 are also listed in a single table and no longer in two separate 

sections (previously A and B). 

− MSI 242000: 

o The interval of existing CMR Two Star task “Operational check of 

emergency generation system” is decreased from 2000FH to 1400FH for 

A340-500/600 aircraft. 

− MSI 262300: 

o Applicability revisited for task ‘Functional check of Pressure reducer and 

Detailed inspection of halon filter, restrictor and check valves’ taking into 

account the different configuration (FMCU and FMS) installed on A340-

600. 

o The intervals of existing CMR Two Star tasks associated with the Flow 

Metering System (FMS) design interval are changed from 20000FH to 

30000FH for A340-500 and from 20000FH to 17000FH for A340-600. 

o Two new CMR Two Star tasks with interval of 20000FH are added to cover 

A340-600 with the Flow Metering Compact Unit (FMCU) design installed. 

− MSI 274000: Applicability of existing CMR One Star task “Inspection of the 

ballscrew assembly for integrity of the primary and secondary load paths” changed 

to “A340-500 PRE 54882 (SB 27-5030) A340-600 PRE 54882 (SB 27-5030)”. 
AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: JUL 31/08 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-7 

©AIRBUS SAS 2008. All rights reserved. 

A340

Iss / Rev 

Date Summary of Changes (CMR Document)

15 (cont) − -MSI 282400: 

o The interval of existing CMR Two Star task “Operational check to confirm 

LP valve isolates fuel supply to associated engine” is increased from 

3500FH to 32000FH for A340-500/600 aircraft. 

− MSI 282600: 

o Existing CMR Two Star task “Operational check of transfer control valve 

actuators using individual motors followed by check that valves are 

physically forward when commanded forward” split into two to clarify that 

with Mod 54807 embodied the interval increases from 13350FH to 

42900FH. 

o Existing CMR Two Star task “Operational check to confirm the RCT fuel 

isolation valve and RCT transfer valve are physically shut when 

commanded shut” split into two to clarify that with Mod 54807 embodied 

the interval increases from 17500FH to 37600FH. 

− MSI 282800: Applicability of CMR “Operational check of ACT manual transfer 

system” changed to A340-300 POST 42612 only. Requirement no longer 

applicable to A340-200. 

− MSI 525111: Reference to SB 25-4205 added in Applicability column 

16 

31 July 08 

− Last issue: The content of the A340 CMR Document (Referenced 955.3019/92) 

applicable to A340 models, has been transferred to the A340 Airworthiness 

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

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: JUL 31/08 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-8 

©AIRBUS SAS 2008. All rights reserved. 

A340

Iss / Rev 

Date Summary of Changes (ALS Part 3 - CMR)

00 

31 July 08 

ALS Part 3 has been reformatted, compared to A340 CMR Document Issue 15. This document 

is divided into the following sub-parts: 

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

• Sub-part 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 Limit of Validity of CMR contained in 

the ALS Part 3 depending on the A340 aircraft series. 

• Addition of paragraphs “3- Alternative Means Of Compliance”, “6- Starting time for 

CMR interval” & “7-Definitions”. 

• Addition of paragraph “9- 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 16 and on, the content of A340 Certification Maintenance 

Requirements (CMR) Document (Referenced 955.3019/92) applicable to A340 

models, has been transferred to the A340 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 of JAR 25 appendix H, CMR’s 

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.”. 

• Subpart 3-0 § 1., the sentence “At first delivery of an aircraft configuration 

into an Operator’s fleet, the requirements given in this document are 

mandatory, except in so far that interval escalations can be justified in 

accordance with the procedure stated herein.” Has been replaced by “This 

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

Operator's fleet. The starting times for CMR task intervals are defined in para 

6 of this sub-section. Possible interval escalations must be justified in 

accordance with the procedure given in paragraph 5 of this sub-section.” 

• §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)
AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: JUL 31/08 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-9 

©AIRBUS SAS 2008. All rights reserved. 

A340

Iss / Rev 

Date Summary of Changes (ALS Part 3 - CMR)

00 

(continued) 

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 

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 “LOV”. 

• §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”. 

Subpart 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. 

− Introduction of new CMR Two Star task 212100-00001-1-C “Operational check to verify 

automatic and manual closing of bulk crew rest compartment isolation valves” at 2600FH 

applicable to A340-300 and A340-500/600 equipped with Bulk Crew Rest Compartment. 

− CMR tasks 212800-A0002-1-C & 212800-A0002-2-C CMRs applicability revised by 

addition of reference to SB 21-4068 associated to MOD 40097. 

− CMR task 212800-A0003-1-C: task interval escalated from 1400FH to 1600FH in order to 

reflect MRBR task interval evolution. Applicability of the task changed to POST 40379 
AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: JUL 31/08 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-10 

©AIRBUS SAS 2008. All rights reserved. 

A340

Iss / Rev 

Date Summary of Changes (ALS Part 3 - CMR)

00 

(continued)

PRE 56296 due to the fact that embodiment of MOD 56296 cancels the need to perform 

this CMR Two Star task, addition of SB references corresponding to MOD 40379 and 

56296. 

− CMR task 242000-A0001-1-C: task interval escalated from 700FH to 800FH in order to 

reflect MRBR task interval evolution. 

− CMR tasks 262300-B0001-2-C and 262300-B0002-2-C, applicability revised from “IF FMS 

INSTALLED” to POST 51065 (SB 26-5003) in order to respect applicability quotation 

principles. 

− CMR tasks 262300-B0003-1-C and 262300-B0004-1-C, applicability revised from “IF 

FMCU INSTALLED” to POST 47090 (SB 26-5003) in order to respect applicability 

quotation principles. 

− CMR 272400-A0001-1-C: interval escalated from 46000FH to 50000FH. Reference to 

correspondent MRBR task 27.24.00/10 added. 

− CMR 274000-A0001-1-C task interval escalated from 5000FH to 5600FH in order to 

reflect MRBR task interval evolution. 

− CMR 274000-B0002-1-C, applicability revised to add MOD related to Checkable Shear 

Pin (CSP) wiring installation. 

− Introduction of new CMR One Star 274000-00002-1-C “Operational check of THSA 

checkable shear pin” with an interval of 70000FH applicable to A340-200/300 and A340-

500/600 with appropriate modifications embodied. 

− CMR 279000-A0002-1-C interval changed from “18 MO” to “18 MO or 8000FH (whichever 

comes first)” in order to reflect MRBR evolution compatible with SSA requirement. 

− CMR 282300-B0002-1-C deleted further to issuance of AD 2007-0279 which supersedes 

original requirement at 8450FH for A340-500/600 PRE MOD 55293 

− Introduction of new CMR One Star 282300-B0002-2-C “Operational check of intertank 

power supply changeover relays” at 26000FH for A340-500/600 POST MOD 55293 
AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX2 - ABBREVIATIONS

ISSUE: JUL 31/08 ALS PART 3 ABBREVIATIONS PAGE: APX2 - 1 

©AIRBUS SAS 2008. All rights reserved. 

A340

ABBREVIATION MEANING 

AC Alternative Current 

AD Airworthiness Directive 

ALS Airworthiness Limitations Section 

AMOC Alternative Means Of Compliance 

BITE Built-In Test Equipment 

Cal. Calendar 

CMR Certification Maintenance Requirements 

CSP Checkable Shear Pin 

D Deleted 

DSG Design Service Goal 

EASA European Aviation Safety Agency 

FC Flight Cycles 

FH Flight Hours 

FCPC Flight Control Primary Computer 

FCSC Flight Control Secondary Computer 

FWD Forward 

GE General Electric 

ICAO International Civil Aviation Organization 

IPC Illustrated Parts Catalogue 

JAR Joint Aviation Requirements 

LDG Landings 

LOV Limit Of Validity 

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 

PTLU Pedal Travel Limitation Unit 
AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX2 - ABBREVIATIONS

ISSUE: JUL 31/08 ALS PART 3 ABBREVIATIONS PAGE: APX2 - 2 

©AIRBUS SAS 2008. All rights reserved. 

A340

ABBREVIATION MEANING 

PW Pratt and Whitney 

R Revised 

RAT Ram Air Turbine 

ROR Record Of Revisions 

SB Service Bulletins 

SYS System 

THS Trimmable Horizontal Stabilizer 

THSA Trimmable Horizontal Stabilizer Actuator 

TOC Table Of Contents 

WV Weight Variant 

YE Year