A330 AIRWORTHINESS LIMITATIONS SECTION 

REVISION: 04 

ALS Part 3 

- 

Certification Maintenance 

Requirements 

(CMR)

 AIRBUS SAS 2013. 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.
A330 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

LIST OF EFFECTIVE PAGES

PART MVT PAGE ISSUE PART MVT PAGE ISSUE

ISSUE: AUG 27/13 ALS PART 3 PAGE: 1-LEP 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document.

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3 R 1-ROR AUG 27/13 

3 R 2-ROR AUG 27/13 

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A330 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

TABLE OF CONTENTS

SUBJECT PART

ISSUE: JUL 29/10 ALS PART 3 PAGE: 1-TOC 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

RECORD OF REVISIONS ROR 

INTRODUCTION 3-0 

CMR TASKS 3-1 
A330 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

RECORD OF REVISIONS

ISSUE: AUG 27/13 ALS PART 3 PAGE: 1-ROR 

EASA APPROVED 

AIRBUS SAS 2013. 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 SEP 13/07 N/A 

 01 ROR 

3-1 

MAY 07/08 2008-0138 

 02 ROR 

3-1 

DEC 16/09 2010-0048 

R 03 ROR 

3-1 

JUL 29/10 2010-0264 

N

N 04 ROR 

3-1 

AUG 27/13 

Note: The ALS Part 3 is covered by the Certification Document 00G050AM093/C01. 

Revision 04 is approved by EASA under reference 10046192. 

REVISION 04 COMPLIANCE TIME:

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

comply with the maintenance requirements and airworthiness limitations defined in the subpart 3-1 of the A330 ALS Part 3 revision 04 from 27-Aug-2014. 

2. From 27-Aug-2013 to 26-Aug-2014, it is mandatory to comply with the maintenance 

requirements and airworthiness limitations defined in, either: 

 The sub-part 3-1 of the A330 ALS Part 3 at revision 03, except as stated in paragraph 

3. of this ROR, 

or, 

 The sub-part 3-1 of the A330 ALS Part 3 at revision 04. 

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A330 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

RECORD OF REVISIONS

ISSUE: AUG 27/13 ALS PART 3 PAGE: 2-ROR 

EASA APPROVED 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

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

subpart 3-1 of the A330 ALS Part 3 revision 04: 

3.1. For all A330 aircraft, first accomplishment of CMR task 242000-00005-1-C must be 

carried out no later than the aircraft accumulating 12000 FH since initial entry into 

service or the last accomplishment of MRBR task 24.20.00/09 or within 3 Months from 

27-Aug-2013, whichever occurs the latest. 

3.2. For all A330 aircraft, first accomplishment of CMR task 274000-00001-1-C must be 

carried out no later than the aircraft accumulating 6900 FH since initial entry into 

service or the last accomplishment of CMR task 274000-00001-1-C (A330 ALS subpart 3-1 revision 03) or the last accomplishment of MRBR task 27.40.00/04 or 3 Months 

from 27-Aug-2013, whichever occurs the latest. 

3.3. For all A330 aircraft, first accomplishment of CMR task 2827000-00002-1-C must be 

carried out no later than the aircraft accumulating 28000 FH since initial entry into 

service or the last accomplishment of MRBR task 28.27.00/03 or 36 Months from 27-

Aug-2013, whichever occurs the latest. 

3.4. For A330 aircraft POST-MOD 40257 PRE-MOD 49144, first accomplishment of CMR 

task 352002-00009-1-C must be carried out no later than the aircraft accumulating 

9500 FH since initial entry into service or the last accomplishment of MRBR task 

35.20.02/03 or 3 Months from 27-Aug-2013, whichever occurs the latest. 

3.5. For A330 aircraft POST-MOD 40257 PRE-MOD 49144, first accomplishment of CMR 

task 352002-00010-1-C must be carried out no later than the aircraft accumulating 

9500 FH since initial entry into service or the last accomplishment of MRBR task 

35.20.02/05 or 3 Months from 27-Aug-2013, whichever occurs the latest. 

3.6. For A330 aircraft POST-MOD 202475, first accomplishment of CMR task 465500-

00002-1-C must be carried out no later than the aircraft accumulating 8000 FH since 

MOD 202475 embodiment. 

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

previous accomplishment date. 

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A330 AIRWORTHINESS LIMITATIONS SECTION 

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Sub-part 3-0 INTRODUCTION

From revision 20 and on, the content of 

A330 Certification Maintenance Requirements (CMR) Document 

(Referenced 955.2074/93) 

applicable to A330 models, has been transferred to the 

A330 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 Joint Aviation Requirements (JAR) 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 times for CMR task intervals are defined in paragraph 8 of 

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

procedure given in paragraph 7 of this sub-section. If a more restrictive CMR is issued 

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

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

(AD). 

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

Airworthiness Directives dedicated to specific concerns may override the specific 

requirement(s) given in this document. 

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

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

Operator and the Authority of the State of aircraft registry. 

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2. APPLICABILITY

The applicability of this ALS Part 3 revision is restricted to the aircraft models listed below: 

A330-201 A330-301 

A330-202 A330-302 

A330-203 A330-303 

A330-223 A330-321 

A330-243 A330-322 

A330-223F A330-323 

A330-243F A330-341 

 A330-342 

 A330-343 

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

refer to the relevant Engine Manufacturer Chapter 05 manual. 

3. A330 AICRAFT SYSTEMS UTILISATION

The CMRs contained in the ALS Part 3 are valid up to the limitations published in this 

document which have been identified in consideration of a maximum number of Flight 

Hours (FH) that may be accrued by an individual aircraft, as follows: 

 Aircraft Series Flight Hours (FH) 

R A330-200 series PRE 49144 PRE 200103 060000 FH 

R A330-200 series PRE 49144 POST 200103 100000 FH 

R A330-200 series POST 49144 100000 FH 

R A330-30x series PRE 49144 PRE 58269 060000 FH 

R A330-30x series PRE 49144 POST 58269 080000 FH 

R A330-30x series PRE 49144 POST 200103 100000 FH 

R A330-32x & A330-34x series PRE 49144 PRE 200103 060000 FH 

R A330-32x & A330-34x series PRE 49144 POST 200103 100000 FH 

R A330-300 series POST 49144 100000 FH 

R A330-200F series 100000 FH 

Depending on fleet leader operation, the impact of a greater aircraft accumulated FH/FC 

value may subsequently be investigated and might demonstrate a need for new or revised 

limitations. As a consequence, should any operator envisage future aircraft operations 

beyond the quoted values, they must first contact Airbus for advice. 

Note: 

(1) Within the context of ALS Part 3, MOD 49144 is used to identify WV050 series and 

WV060 series aircraft (Enhanced aircraft) since this modification cannot be retrofitted on 

WV000, WV010 and WV020 series aircraft. 

(2) MOD 58269 refers to Design Service Goal (DSG) extension of A330-30x (i.e. A330-300 

with GE engines) from 60000 FH up to 80000 FH. 

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(3) MOD 200103 refers to Design Service Goal (DSG) extension of all A330-200/-300 up to 

100000 FH. 

4. MODIFICATIONS/REPAIRS NOT DEVELOPED UNDER AIRBUS DOA CERTIFICATE 

EASA. 21J.031

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

has not been developed under the Design 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. 

5. ALTERNATIVE METHODS OF COMPLIANCE

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

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

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

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

6. 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 CMRs: 

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

 Tasks for which the maximum acceptable interval is in excess of the aircraft systems 

utilisation values in the paragraph 3, 

 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. 

7. 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). 

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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. 

8. 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. 

9. DEFINITIONS

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

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

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

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

and/or Calendar time between successive accomplishments of a 

specific task. 

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

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

quantitative tolerances. 

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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. 

10. 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. 
A330 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: AUG 27/13 ALS PART 3-0 PAGE: 6 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

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 

11. 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 A330 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 aircraft series in Airbus numbering system. As it is not 

applicable to A330 CMR references, it is always set to ‘0’ in this document, 

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

value, ‘G’ stands for GE engines, ‘P’ 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 A330 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. 

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ISSUE: AUG 27/13 ALS PART 3-0 PAGE: 7 

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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. 

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 A330 aircraft. 

PRE nnnnn All A330 PRE MOD nnnnn. 

i.e. A330 that do not have MOD nnnnn embodied. 

POST nnnnn All A330 POST MOD nnnnn. 

i.e. A330 that do have MOD nnnnn embodied. 

POST nnnnn 

POST mmmmm 

All A330 POST MOD nnnnn and POST MOD mmmmm. 

i.e. A330 that do have MOD nnnnn and MOD mmmmm embodied. 

A330-xxx 

PRE nnnnn 

All A330-xxx that do not have MOD nnnnn embodied. 

A330-xxx 

POST nnnnn 

All A330-xxx that do have MOD nnnnn embodied. 

A330-200 

OR 

A330-300 

PRE 49144 

All A330-200, or 

All A330-300 that do not have MOD 49144 embodied. 

A330-200 

POST 44442 

OR 

A330-300 

POST 44442 

PRE 49144 

All A330-200 that do have MOD 44442 embodied, or 

All A330-300 that do have MOD 44442 embodied and do not have MOD 

49144 embodied 

GE All A330 equipped with GE CF6-80 E1 engines. 
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ISSUE: AUG 27/13 ALS PART 3-0 PAGE: 8 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

Applicability Task applicable to 

PW All A330 equipped with PW 4000 engines 

A330-200F Task applicable to A330-223F and A330-243F aircraft models 

END OF SUB-PART 3-0 

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A330 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: AUG 27/13 ALS PART 3-1 

EASA APPROVED 

AIRBUS SAS 2013. 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 

 212800-00001-1-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 21.2

R 212800-00002-1-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 21.2

R 212800-00003-1-C CMR** LOWER DECK CARGO COMPARTMENT HEATING VENTILATION AND 

COOLING (FWD, AFT AND BULK) OPERATIONAL CHECK TO VERIFY AUTOMATIC CLOSING OF LOWER DECK MOBILE CREW REST ISOLATION VALVES IN CASE OF SMOKE WARNING 

1600 FH 21.2

 213100-00001-2-C CMR** PRESSURE CONTROL AND MONITORING 

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

48000 FH 21.3

 215000-00001-1-C CMR** AIR COOLING TEMPERATURE CONTROL 

OPERATIONAL CHECK TO VERIFY ABILITY TO SHUT-DOWN BOTH AIR CONDITIONING PACKS FROM THE FLIGHT DECK 

16500 FH 

242000-00001-1-C CMR* AC GENERATION 

OPERATIONAL CHECK OF EMERGENCY GENERATION SYSTEM 

75 FH 24.2
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ISSUE: AUG 27/13 ALS PART 3-1 

EASA APPROVED 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

Rev 

code CMR Ref number CMR Cat. Task Description Interval Relat

Task 

242000-00002-1-C CMR* AC GENERATION 

OPERATIONAL CHECK OF STATIC INVERTER AND DC ESS BUS SUPPLY 

650 FH 24.2

242000-00003-1-C CMR** AC GENERATION 

OPERATIONAL CHECK OF EMERGENCY GENERATOR MANUAL CONNECTION

4000 FH 24.2

242000-00004-1-C CMR** AC GENERATION 

OPERATIONAL CHECK OF EMERGENCY GENERATOR AUTOMATIC CONNECTION 

4000 FH 24.2

R 242000-00005-1-C CMR** AC GENERATION 

OPERATIONAL CHECK OF AC ESSENTIAL GENERATION MANUAL AND AUTOMATIC SWITCHING 

12000 FH 24.2

 243000-00001-1-C CMR** DC GENERATION 

OPERATIONAL CHECK OF DC MAIN GENERATION SWITCHING 

12000 FH 24.3

 243000-00002-1-C CMR** DC GENERATION 

OPERATIONAL CHECK OF DC ESSENTIAL GENERATION SWITCHING 

12000 FH 24.3

 245000-00001-1-C CMR** AC ELECTRICAL LOAD DISTRIBUTION 

OPERATIONAL CHECK OF LEFT AND RIGHT FUEL PUMP 2 SHEDDING IN 

LAND RECOVERY CONFIGURATION 

8000 FH 24.5

262300-00001-1-C CMR** LOWER DECK CARGO COMPARTMENT FIRE EXTINGUISHING (FWD, AFT AND 

BULK) FUNCTIONAL CHECK OF PRESSURE REDUCER 

14000 FH 26.2
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ISSUE: AUG 27/13 ALS PART 3-1 

EASA APPROVED 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

Rev 

code CMR Ref number CMR Cat. Task Description Interval Relat

Task 

R 262300-00002-1-C CMR** LOWER DECK CARGO COMPARTMENT FIRE EXTINGUISHING (FWD, AFT AND 

BULK) DETAILED INSPECTION OF RESTRICTOR, HALON FILTER AND CHECK VALVE NOTE: FOR AIRCRAFT ON WHICH MOD 58269 OR MOD 200103 IS EMBODIED, 

FIRST ACCOMPLISHMENT MUST BE CARRIED OUT NO LATER THAN THE AIRCRAFT ACCUMULATING 60000 FH 

14000 FH 

NOTE 

26.2

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

OPERATIONAL CHECK OF AILERON DAMPING MEASUREMENT BY BITE NOTE: FOR AIRCRAFT ON WHICH MOD 200103 IS EMBODIED, FIRST 

ACCOMPLISHMENT MUST BE CARRIED OUT NO LATER THAN THE AIRCRAFT ACCUMULATING 60000 FH 

12000 FH 

NOTE 

27.1

R 272100-00001-1-C CMR** RUDDER MECHANICAL CONTROL 

OPERATIONAL CHECK OF BACK-UP YAW DAMPER BY BITE 

2400 FH 27.2

R 272100-00002-1-C CMR** RUDDER MECHANICAL CONTROL 

DETAILED INSPECTION OF CONTROL ROD (ITEM 220 IN IPC 272147-1A) IN PTLU LINKAGE 

2000 FH 27.2

R 272100-00002-2-C CMR** RUDDER MECHANICAL CONTROL 

DETAILED INSPECTION OF CONTROL ROD (ITEM 220 IN IPC 272147-1A) IN PTLU LINKAGE 

20000 FH 27.2

272400-00001-2-C CMR** RUDDER HYDRAULIC ACTUATION 

REMOVE RUDDER SERVOCONTROL FOR WORKSHOP CHECK OF INTERNAL 

SEALS 

33000 FH 
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ISSUE: AUG 27/13 ALS PART 3-1 

EASA APPROVED 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

Rev 

code CMR Ref number CMR Cat. Task Description Interval Relat

Task 

272400-00002-1-C CMR** RUDDER HYDRAULIC ACTUATION 

OPERATIONAL CHECK OF RUDDER DAMPING MEASUREMENT BY BITE 

10000 FH 27.2

 272400-00003-1-C CMR** RUDDER HYDRAULIC ACTUATION 

FUNCTIONAL CHECK OF INDIVIDUAL RUDDER SERVOCONTROLS 

50000 FH 27.2

R 273400-00001-1-C CMR** ELEVATOR AND HYDRAULIC ACTUATION 

OPERATIONAL CHECK OF ELEVATOR DAMPING MEASUREMENT BY BITE NOTE: FOR AIRCRAFT ON WHICH MOD 200103 IS EMBODIED, FIRST 

ACCOMPLISHMENT MUST BE CARRIED OUT NO LATER THAN THE AIRCRAFT ACCUMULATING 60000 FH 

12000 FH 

NOTE 

27.3

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

OPERATIONAL CHECK OF THS ACTUATOR JAMMING PROTECTION DEVICE 

6900 FH 27.4

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

OPERATIONAL CHECK OF THS ACTUATOR WITH INDIVIDUAL HYDRAULIC SYSTEMS 

800 FH 27.4

R 274000-00003-1-C CMR* TRIMMABLE HORIZONTAL STABILIZER 

OPERATIONAL CHECK OF THSA CHECKABLE SHEAR PIN NOTE: TASK APPLICABLE IF BOTH MODIFIED THSA AND ELECTRICAL 

HARNESSES ARE INSTALLED - THSA MODIFICATION 55780 OR SB 27-3137 OR SB 27-3181 OR SB 27-3143 - ELECTRICAL HARDNESS MODIFICATIONS 52269 AND 56056 OR SB 92-3046 

70000 FH 27.4
A330 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: AUG 27/13 ALS PART 3-1 

EASA APPROVED 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

Rev 

code CMR Ref number CMR Cat. Task Description Interval Relat

Task 

 279000-00001-1-C CMR** ELECTRICAL FLIGHT CONTROL SYSTEM (EFCS) 

OPERATIONAL CHECK OF FCPCS AND FCSCS STANDBY SERVO LOOPS ON 

PITCH CONTROL 

800 FH 27.9

R 279000-00002-1-C CMR** ELECTRICAL FLIGHT CONTROL SYSTEM (EFCS) 

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

24 MO 

OR 

12000 FH

(WHICHEVER 

COMES 

FIRST) 

27.9

R 279000-00004-1-C CMR** ELECTRICAL FLIGHT CONTROL SYSTEM (EFCS) 

OPERATIONAL CHECK OF POWER SUPPLY OF THE FCSC2 

12000 FH 27.9

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

OPERATIONAL CHECK TO VERIFY ISOLATION OF RIGHT NO.2 MAIN FUEL 

PUMP WHEN LEFT NO.2 MAIN FUEL PUMP IS RUNNING IN ELECTRICAL EMERGENCY CONFIGURATION AND TO VERIFY LEFT NO.2 PUMP "OFF" FUNCTION IS OPERATIVE 

4000 FH 28.2

R 282400-G0001-1-C CMR** ENGINE LP FUEL SHUT-OFF 

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

29000 FH 28.2

R 282400-P0001-1-C CMR** ENGINE LP FUEL SHUT-OFF 

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

29000 FH 28.2
A330 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: AUG 27/13 ALS PART 3-1 

EASA APPROVED 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

Rev 

code CMR Ref number CMR Cat. Task Description Interval Relat

Task 

R 282600-00001-1-C CMR* MAIN TRANSFER SYSTEM 

OPERATIONAL CHECK OF MANUAL OVERRIDE PB/SW AND ASSOCIATED CIRCUITRY 

82700 FH 

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

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

15900 FH 28.2

R 282700-00001-2-C CMR** TRIM TANK TRANSFER SYSTEM 

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

12000 FH 28.2
A330 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: AUG 27/13 ALS PART 3-1 

EASA APPROVED 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

Rev 

code CMR Ref number CMR Cat. Task Description Interval Relat

Task 

R 282700-00001-3-C CMR** TRIM TANK TRANSFER SYSTEM 

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

25000 FH 28.2

N 282700-00002-1-C CMR** TRIM TANK TRANSFER SYSTEM 

FUNCTIONAL CHECK OF TRIM TANK TRANSFER LINE SHROUD CONNECTORS 

28000 FH 28.2

R 292000-00001-1-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 

12000 FH 

(WHICHEVER 

COMES 

FIRST) 

29.2

 351000-00001-1-C CMR** CREW OXYGEN 

FUNCTIONAL CHECK OF ALTITUDE PRESSURE SWITCH 

15000 FH 35.1
A330 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: AUG 27/13 ALS PART 3-1 

EASA APPROVED 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

Rev 

code CMR Ref number CMR Cat. Task Description Interval Relat

Task 

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

OPERATIONAL CHECK OF ENGINE BURST PROTECTION SYSTEM 

15000 FH 35.2

 352002-00001-2-C CMR** PASSENGER OXYGEN (GASEOUS) 

OPERATIONAL CHECK OF ENGINE BURST PROTECTION SYSTEM 

9500 FH 35.2

 352002-00002-1-C CMR** PASSENGER OXYGEN (GASEOUS) 

REMOVE PRESSURE RELIEF VALVE FOR FUNCTIONAL CHECK 

40000 FH 35.2

 352002-00003-1-C CMR** PASSENGER OXYGEN (GASEOUS) 

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

16500 FH 35.2

R 352002-00004-1-C CMR** PASSENGER OXYGEN (GASEOUS) 

REMOVE PRESSURE REDUCER FOR FUNCTIONAL CHECK 

15000 FH 35.2

 352002-00005-1-C CMR** PASSENGER OXYGEN (GASEOUS) 

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

12500 FH 35.2

 352002-00006-1-C CMR** PASSENGER OXYGEN (GASEOUS) 

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

12500 FH 35.2

 352002-00007-1-C CMR** PASSENGER OXYGEN (GASEOUS) 

DETAILED INSPECTION OF OXYGEN MASK ASSEMBLIES 

12500 FH 35.2
A330 AIRWORTHINESS LIMITATIONS SECTION 

ISSUE: AUG 27/13 ALS PART 3-1 

EASA APPROVED 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

Rev 

code CMR Ref number CMR Cat. Task Description Interval Relat

Task 

352002-00008-1-C CMR** PASSENGER OXYGEN (GASEOUS) 

REMOVE RISER LINE SHUT OFF VALVE FOR FUNCTIONAL CHECK 

25000 FH 35.2

N 352002-00009-1-C CMR** PASSENGER OXYGEN (GASEOUS) 

FUNCTIONAL CHECK OF AUTOMATIC SYSTEM OPERATION 

9500 FH 35.2

N 352002-00010-1-C CMR** PASSENGER OXYGEN (GASEOUS) 

OPERATIONAL CHECK OF MANUAL SYSTEM OPERATION 

9500 FH 35.2

R 465500-00001-1-C CMR* ON-BOARD INFORMATION TERMINAL (OIT) 

OPERATIONAL CHECK OF OIT CONNECTION TO AIRCRAFT BATTERY 

10000 FH 

N 465500-00002-1-C CMR** AC ELECTRICAL LOAD DISTRIBUTION 

OPERATIONAL CHECK OF OIT SHEDDING IN LAND RECOVERY CONFIGURATON 

8000 FH 

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

OPERATIONAL CHECK OF DECOMPRESSION FLAP RELEASE MECHANISM 

11000 FH 52.5

END OF SUB-PART 3-1 
A330 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: AUG 27/13 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-1 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

1- GENERAL

At the opportunity of the update of A330 CMR Document Issue 20, its content was transferred to 

the ALS Part 3 revision 00. 

2- SUMMARY OF CHANGES

The following summarizes the changes with respect all issues of the A330 CMR Document and 

A330 ALS Part 3. 

Iss / Rev 

Date Summary of Changes (CMR Document)

1 

6 Oct 93 

 First Issue. 

2 

18 Feb 94 

 Correction of Appendix to include all time limited Class 3 faults associated with ECU 

3 

19 May 94 

 Applicability expanded to include A330-321 and A330-322 models 

4 

15 Dec 94 

 Applicability expanded to includeA330-341 and A330-342 models. 

 In appendix, ref to mod/SB numbers added against ATA 27 computers and interval 

between checks for ECU time limited faults reduced from 600FH to 500FH 

5 

2 Jul 96 

 Cancel MSI 214300 task ‘Operational check’ to verify automatic closing of isolation 

valve of crew rest room (under floor) in case of smoke warning (with mod 40379). 

 Identify in Appendix the initial Mod/SB numbers that cancel time limited Class 3 faults 

associated with GE ECU. Note added in the same column against FCDC and ECU 

entries. 

6 

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. 

7 

31 Mar 98 

 Applicability expanded to include A330-202. 

 MSI 451000. CMR One Star task cancelled since all aircraft are now ‘Post Mod’. 

Appendix “Time Limited Class 3 Fault Messages” deleted. 

 MSI 783100 (GE). CMR One Star task concerning thrust reverser retention is added 

(applicable to A330-200). 

 MSI 2128/4300. CMR Two Star task “Op. Chk to verify automatic closing of isolation 

valve of crew rest room (under floor)” re instated. CRR(u) is now an option on A330-

200. 

 MSI 242000. CMR Two Star task “Op Chk of static inverter”. Interval increased from 
A330 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: AUG 27/13 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-2 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

Iss / Rev 

Date Summary of Changes (CMR Document)

7 

(continued) 

400 FH to 500 FH. 

 MSI 272100. Two CMR Two Star tasks added, one for A330-200, one for A330-300, 

requiring visual check of control rod on a/c with Mod 44442. 

 MSI 272400. Existing CMR Two Star task to check rudder s/c internal seals is made 

applicable to A330-300. Equivalent requirement for A330-200 is added. 

 MSI 282700. Existing CMR Two Star task to confirm trim pipe isolation is made 

applicable to A330-300 Pre Mod 45649. Equivalent tasks for A330-300 Post Mod 

45649 and A330-200 (which have 8 pole switch) are added. 

8 

23 Jun 98 

 Applicability extended to include A330-223. 

9 

2 Dec 98 

 Applicability extended to include A330-243. 

10 

15 Apr 99 

 Applicability extended to include A330-323. 

 CMR One Star task 783100 now applicable only in pre mod 47204 (double P-seal) 

configuration. 

 New CMR Two Star task 783100 added for post mod 47204 configuration. Applicable to 

both A330-20x and A330-30x models. 

 In para 1 of Section 0 the term ‘Structural Inspection Requirements’ is replaced by 

‘Airworthiness Limitation Items document’. 

11 

2 Sep 99 

 Applicability extended to include A330-343 

12 

1 Oct 99 

 New CMR One Star task 242000 added with interval 75FH. This is introduced 

subsequent to deletion of daily flight crew task. 

13 

6 Nov 01 

 Applicability extended to include A330-203 

14 

1 Feb 02 

 MSI 27.21.00. Interval of Two Star CMR on A330-200 requiring visual check to confirm 

integrity of control rod in PTLU linkage (with Mod 44442) increased from 4000FH to 

20000FH. Revised task now also applicable to A330-300 WV010 and subsequent. 

 MSI 27.21.00. Applicability of 2000FH CMR Two Star task changed from all A330-300 

to A330-300 WV000 to WV004 i.e. those without fin reinforcement Mod 41800 

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

seals increased from 30000FH to 33000FH (A330-200) and from 40000FH to 46000FH 

(A330-300). 

 In Section 0, reference to AMM Chapter 05 deleted and replaced by MPD Section 9.1. 

15 

1 Oct 02 

 Applicability extended to include A330-201 

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

 Applicability of task MSI 272100 ‘Visual check to confirm integrity of control rod’ (post 

41800) clarified 

‘Airbus Industrie’ logo replaced by ‘Airbus’ logo on all pages. Page Issue / Date not modified 

by this change 
A330 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: AUG 27/13 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-3 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

Iss / Rev 

Date Summary of Changes (CMR Document)

16 

20 May 03 

Section 0:

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

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

Section 1:

 MRB Report task reference added for One Star CMR in MSI 242000. 

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

60000FH DSG. For aircraft with 100000FH DSG the corresponding interval limitation is 

10000FH 

Section 2:

 Further to reformatting of the MRB Report, revised MRB Report task references quoted 

for the three tasks under MSI 2128/4300. 

 Four ‘Two Star’ CMRs added (one in MSI 271400, one in MSI 273400 and two in MSI 

279000) applicable to aircraft having DSG of 100000FH. 

 Applicability of the Two Star CMR 272100 associated with back-up yaw damper 

changed from All to Pre Mod 49144 

 MSI 272400. MRB Report references removed from CMRs associated with rudder 

servo-control workshop check following deletion of task from MRB Report. 

 MSI 272400. New Two Star CMR added for aircraft with Mod 49144. Interval 10000FH. 

 MSI 274000. MRB Report reference number added. 

 MSI 525111. New Two Star CMR added associated with cockpit door decompression 

flap applicable with either Mod 50014 or SB A330-25-3161. Interval 11000FH. 

17 

9 Oct 03 

 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. 

 MSI 272100. The applicability of two Two Star CMRs requiring a visual check of PTLU 

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

control, i.e. ‘without Mod 49144’ added. 

 MSI 272400. The applicability of two Two Star CMRs calling for rudder servo-control

seal checks is changed to identify that task is not applicable on aircraft with electrical 

rudder control, i.e. ‘without Mod 49144’ added. 

18 

22 Mar 04 

 Applicability extended to include A330-302 and –303. 

19 

22 Mar 06 

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

consideration of 100000FH DSG (only ATA27 had been addressed in Iss 16) (in this 

summary, the term ‘basic’ refers to a/c with DSG of 60000FH and ‘enhanced’ refers 

to a/c with DSG of 100000FH) 

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 

 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 
A330 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: AUG 27/13 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-4 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

Iss / Rev 

Date Summary of Changes (CMR Document)

19

(continued)

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

Section 1:

 MSI 242000. Two Star CMR concerning static inverter and DC ess. Bus supply is 

upgraded to One Star CMR. CMR status applicable to basic and enhanced a/c. Interval 

650FH 

Section 2:

 MSI 213100. New Two Star CMR added associated with delta P protection. CMR 

status only applicable to the enhanced a/c. Interval 68000FH 

 MSI 242000. Two Star CMR associated with Static inverter and DC ess. Bus deleted 

(upgraded to One Star CMR) 

 MSI 242000. New Two Star CMR added associated with Emergency Generator 

Automatic Connection. CMR status applicable to basic and enhanced a/c. Interval 

4000FH 

 MSI 245000. New Two Star CMR added associated with Left and Right Fuel Pump 2. 

CMR status applicable to basic and enhanced a/c. Interval 8000FH 

 MSI 262300. New Two Star CMR added associated with halon filter. CMR status only 

applicable to the enhanced a/c. Interval 14000FH 

 MSI 352002. Nine new Two Star CMRs added relating to gaseous oxygen system 

(Post Mod 40257 or 52485). Tasks are associated with: 

o Engine burst protection system. 15000FH interval applicable to enhanced a/c, 

9500FH applicable to basic a/c. 

o Pressure relief valve functional check. CMR status only applicable to a/c Post 

Mod 52485, Interval 40000FH 

o Pressure regulator shop check. CMR status only applicable to a/c Post Mod 

52485, Interval: 16500FH 

o Pressure reducer shop check. CMR status only applicable to a/c Post Mod 

40257. Interval 15000FH 

o Oxygen container and bleed/vent valve. CMR status only applicable to a/c Post 

Mod 40257Interval 12500FH 

o Pressure holding/decay. CMR status only applicable to a/c Post Mod 40257. 

Interval 12500FH 

o Oxygen mask assemblies. CMR status only applicable to a/c Post Mod 40257. 

Interval 12500FH 

o Riser line shut off valve. CMR status only applicable to a/c Post Mod 40257. 

Interval 25000FH. 

20 

04 Jul 07 

 Last issue: The content of the A330 CMR Document (Referenced 955.2074/93) 

applicable to A330 models, has been transferred to the A330 Airworthiness 

Limitations Section (ALS) Part 3 Certification Maintenance Requirements (CMR). 
A330 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: AUG 27/13 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-5 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

Iss / Rev 

Date Summary of Changes (ALS Part 3 – CMR)

00 

13 Sep 07 

ALS Part 3 has been reformatted, compared to A330 CMR Document Issue 19. 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 A330 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 20 and on, the content of A330 Certification Maintenance 

Requirements (CMR) Document (Referenced 955.2074/93) applicable to A330 

models, has been transferred to the A330 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.”. 

 “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 

registry”. 
A330 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: AUG 27/13 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-6 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

Iss / Rev 

Date Summary of Changes (ALS Part 3 – CMR)

00 

(continued) 

 §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. 

 MSI 212800: Applicability of the task “Operational check to verify automatic closing of 

isolation valve of crew rest room (under floor) in case of smoke warning” changed to 

POST 40379 PRE 56296 due to the fact that embodiment of MOD 56296 cancels the 

need to perform this CMR Two Star task. 

 MSI 272100: 

 Applicability of CMR Two Star task “Visual check to confirm integrity of control rod 

(Item 220 in IPC 272147-1A in PTLU linkage” at 2000 FH simplified with deletion of 

the statement “(A330-300 WV000 to WV004 i.e. those without fin reinforcement MOD 

41800)”. 

 Applicability of CMR Two Star task “Visual check to confirm integrity of control rod 

(Item 220 in IPC 272147-1A in PTLU linkage” at 20000 FH simplified with deletion of 
A330 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: AUG 27/13 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-7 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

Iss / Rev 

Date Summary of Changes (ALS Part 3 – CMR)

00 

(continued)

the statement “(applicable to all A330-200 and to A330-300 WV010 and subsequent 

i.e. those with fin reinforcement MOD 41800)”. 

 MSI 282400: Two new CMR Two Star tasks “Operational check to confirm LP valve 

isolates fuel supply to associated engine” with interval of 29000 FH are added for A330 

aircraft equipped with GE CF6 80 E1 and PW4000 engines. 

 MSI 783100: 

 CMR One Star task “Check the three means of thrust reverser retention (aeroseal, 

CDU brake and additional disc brake) (A330-200 without MOD 47204)” at 6900 FH 

deleted due to embodiment of MOD 47204 on all A330-200 aircraft (AD requirement).

 CMR Two Star task “Check the three means of thrust reverser retention (aeroseal, 

CDU brake and additional disc brake) ” at 25000 FH split into three separated CMR 

Two Star tasks (i.e. 783100-0G002-1-C, 783100-0G003-1-C and 783100-0G004-1-C) 

in order to be in accordance with MRB Report revision 9. 

01 

11 Mar 08 

 Document updated to delete CMR tasks 783100-0G002-1-C, 783100-0G003-1-C and 

783100-0G004-1-C whose requirements are superseded by FAA AD 2002-10-08 and 

GSAC CNCA 2002-305-IMP(B). The same AD and CNCA references have also been 

identified in the previously deleted CMR 783100-0G0001-1-C. 

 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.” 

 Correction of CMR task references in Appendix 1 – Summary of Changes for Revision 00 

at page APX1-7 

02 

16 Dec 09 

Subpart 3-0

 Revision 02 introduces the following information to Subpart 3-0 §2: 

 Introduction sentence “The document covers the following A330 models” is replaced 

by the following sentence “The applicability of this ALS Part 3 revision is restricted to 

the aircraft models listed below” 

 Table amended to include LOV of ALS Part 3 applicable to aircraft whose Design 

Service Goal has been extended through Intermediate Service Goal exercise. 

Reference to ISG modification (MOD 58269) added in order to clarify task 

applicability quotation. 

 Extension of applicability in order to include WV 060 recently certified. 

 Addition of the sentence “Maintenance requirements and/or airworthiness limitations 

identified throughout ALS Part 3 may be superseded by Ageing System Maintenance 

requirements identified within ALS Part 4. In that case, it is Operator’s responsibility 

to consider the most restrictive of both requirements.”, in order to clarify relationships 

between ALS Parts 3 and 4. 

Subpart 3-1:

 Applicability of CMR 212800-00002-1-C refined in order to consider adaptation of A330-

300 modification on A330-200. 

 CMR 212800-00003-1-C interval escalated from 1400FH to 1600FH in order to reflect 
A330 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: AUG 27/13 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-8 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

Iss / Rev 

Date Summary of Changes (ALS Part 3 – CMR)

02 

(continued) 

MRBR task interval evolution. Applicability of the task updated by addition of SB 

reference corresponding to MOD 56296 and correction of SB reference corresponding to 

MOD 40379. 

 New CMR Two Star task 213100-00001-2-C “Functional check of positive and negative 

delta P protection of safety valves” added in order to reflect A330-30x DSG extension 

(ISG). 

 CMR task 262300-00002-1-C revised in order to extend its applicability to aircraft POST 

MOD 58269 (i.e. POST ISG). 

 CMR task 272400-00001-1-C deleted and replaced by new CMR 272400-00003-1-C 

which allows to replace a workshop check by an on-aircraft check for A330-300 PRE 

49144 aircraft. 

 CMR 274000-00001-1-C interval escalated from 5000FH to 5600FH in order to reflect 

MRBR task interval evolution. 

 Introduction of new CMR One Star 274000-00003-1-C “Operational check of THSA 

checkable shear pin” with an interval of 70000FH. 

 CMR 279000-00002-1-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 352002-00002-1-C and 352002-00003-1-C, applicability revised to add MOD 56322 

which adapts MOD 52485 to A330-300. New MRBR task references added. CMR 

783100-0G001-1-C, 783100-0G002-1-C, 783100-0G003-1-C and 783100-0G004-1-C, 

sentence changed from “NOTE: CMR DELETED BECAUSE CMR REQUIREMENT IS 

SUPERSEDED BY FAA AD 2002-10-08 AND GSAC CNCA 2002-305-IMP(B)” to “CMR 

DELETED AT REV 01”. 

03 

29 Jul 10 

Subpart 3-0

 Revision 03 introduces the following information: 

 Extension of applicability of ALS Part 3 to A330-223F and A330-243F aircraft models.

 Table amended to include LOV of ALS Part 3 applicable to: 

 aircraft whose Design Service Goal has been extended through Intermediate 

Service Goal exercise. Reference to ISG modification (MOD 58269 and 

MOD 200103) added in order to clarify task applicability quotation. 

 A330-200F series WV 000 & WV001. 

 Instructions added for Modifications/Repairs not developed under Airbus DOA 

Certificate EASA. 21J.031 

Subpart 3-1:

 CMR 212800-00002-1-C revised in order to extend its applicability to A330-200F aircraft. 

 CMR 213100-00001-1-C deleted in accordance with Enhanced A330/A340 CPCS SSA. 

 CMR 213100-00001-2-C revised in order to extend its applicability to all aircraft which are 

PRE-MOD 49144 (independent from DSG) and interval escalated from 41900FH to 

48000FH in accordance with revised Basic A330/A340 CPCS SSA which extends the 

applicability to POST ISG aircraft. 

 New CMR Two Stars 215000-00001-1-C “Operational check to verify ability to shut-down 

both air conditioning packs from the flight deck” at 16500FH and applicable to A330-200F, 

added in order to reflect new A330-200F Air Conditioning System SSA. 
A330 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: AUG 27/13 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-9 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

Iss / Rev 

Date Summary of Changes (ALS Part 3 – CMR)

03 

(continued) 

 New CMR Two Stars 242000-00005-1-C “Operational check of AC essential generation 

automatic switching”, CMR Two Stars 243000-00001-1-C “Operational check of DC main 

generation switching” and CMR Two Stars 243000-00002-1-C “ Operational check of DC 

essential generation switching” at 12000FH and applicable to all A330 aircraft, added in 

order to reflect revised A330 Electrical Power SSA. 

 CMR 262300-00002-1-C revised in order to extend its applicability to aircraft which are 

PRE-MOD 49144 and on which MOD 200103 is embodied (i.e. POST ISG). 

 CMR 271400-00001-1-C revised in order to extend its applicability to aircraft which are 

PRE-MOD 49144 and on which MOD 200103 is embodied (i.e. POST ISG). 

 Applicability of CMR 272100-00001-1-C revised in order to add PRE 200630. 

 CMR 273400-00001-1-C revised in order to extend its applicability to aircraft which are 

PRE-MOD 49144 and on which MOD 200103 is embodied (i.e. POST ISG). 

 CMR 274000-00001-1-C revised in order to extend its applicability to ALL aircraft and 

interval escalated from 5600FH to 10000FH in accordance with Basic A330/A340 Primary 

Flight Controls SSA. 

 CMR 274000-00001-2-C deleted and replaced by revised CMR 274000-00001-1-C. 

 Applicability of CMR 274000-00003-1-C revised in order to simplify applicability quotation 

 CMR 279000-00003-1-C deleted. No aircraft concerned by this limitation anymore. 

 New CMR One Star 282600-00001-1-C “Operational check of manual override PB / SW 

and associated circuitry” at 82700FH and applicable to A330-200 POST ISG OR A330-

200 Enhanced aircraft OR A330-200F aircraft on which modification for Dry Centre 

Section is not yet embodied, added in order to reflect new A330-200 (100,000 DSG) 

ATA28 SSA and Memo. 

 CMR 282700-00001-1-C revised in order to extend its applicability to A330-200F aircraft 

which are PRE-MOD 45649 and on which modification for Dry Centre section is 

embodied (i.e. A330-200F with a dry centre box equivalent to the A330-300). Interval 

escalated from 6500FH to 15900FH in accordance with new A330-300 (100,000 DSG) 

ATA28 SSA. 

 CMR 282700-00001-2-C revised in order to extend its applicability to A330-200F aircraft 

which are POST-MOD 45649 and on which modification for Dry Centre section is 

embodied (i.e. A330-200F with a dry centre box equivalent to the A330-300). Interval 

escalated from 1400FH to 12000FH in accordance with new A330-300 (100,000 DSG) 

ATA28 SSA. 

 CMR 282700-00001-3-C revised in order to limit its applicability from all A330-200 aircraft 

to: 

 Enhanced and POST ISG A330-200 aircraft which are PRE-MOD 45649, 

 A330-200 aircraft which are POST-MOD 45649, 

 A330-200F aircraft on which modification for Dry Centre section is not yet embodied. 

Interval escalated from 4000FH to 25000FH in accordance with new A330-200 (100,000 

DSG) ATA28 SSA. 

 CMR 292000-00001-1-C interval escalated from 18MO OR 8000FH (WHICHEVER 

COMES FIRST) to 24MO OR 10000FH (WHICHEVER COMES FIRST) in order to 

anticipate future MRB evolution and align with A340 requirements since it is allowed by 

A330/A340 Hydraulic power system SSA. 
A330 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: AUG 27/13 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-10 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

Iss / Rev 

Date Summary of Changes (ALS Part 3 – CMR)

03 

(continued) 

 New CMR Two Stars 351000-00001-1-C “Functional check of Altitude Pressure Switch” at 

15000FH and applicable to A330-200F, added in order to reflect new A330-200F 

Gaseous Oxygen System SSA. 

 Applicability of CMR 352002-00001-1-C revised in order to add POST 56322

POST 49144. 

 New CMR One Star 465500-00001-1-C “Operational test of OIT connection on aircraft 

battery” at 10000FH and applicable to A330 aircraft on which MOD 58865 is embodied,

added in order to reflect revision of A330 Electrical Power SSA. 

 CMR 525111-00001-1-C revised in order to restrict its applicability to A330-200/300 

aircraft which are PRE-MOD 57371. 

 Removal of CMR task 272400-00001-1-C deleted at revision 02. 

 Removal of CMR task 783100-0G001-1-C deleted at revision 00. 

 Removal of CMR task 783100-0G002-1-C deleted at revision 01. 

 Removal of CMR task 783100-0G003-1-C deleted at revision 01. 

 Removal of CMR task 783100-0G004-1-C deleted at revision 01. 

04 

27 Aug 13 

A330 ALS Part 3 Revision 04 introduces mainly the new or revised maintenance tasks arising 

from A330 certification activities since the revision 03. 

Subpart 3-0

 Delete the Limit of Validity (LOV) terminology. 

 Wording improved in the paragraph 3 “A330 Aircraft systems utilisation”. 

 Addition of definition “Visual check” in paragraph 9 “Definition”. 

Subpart 3-1:

CMR tasks revised: 

 CMR task 212800-00002-1-C: SB references are removed from the applicability. 

 CMR task 212800-00003-1-C: task description revised in order to reflect the last MRBR 

revision and SB references are removed from the applicability. 

 CMR task 242000-00005-1-C: task description changed in order to reflect last revision of 

the A330 ATA24 SSAs and the related MRBR reference changed to 24.20.00/09. 

 CMR task 262300-00002-1-C: SB references are removed from the applicability and 

“NOTE”. 

 CMR task 271400-00001-1-C: interval escalated from 10000 FH to 12000 FH and SB 

references are removed from the applicability and “NOTE”. 

 CMR task 272100-00001-1-C: task description amended. 

 CMR task 272100-00002-1-C: task description amended in order to reflect the last MRBR 

revision and SB references are removed from the applicability. 

 CMR task 272100-00002-2-C: task description amended in order to reflect the last MRBR 

revision and SB references are removed from the applicability. 

 CMR task 273400-00001-1-C: interval escalated from 10000 FH to 12000 FH and SB 

references are removed from the applicability and “NOTE”. 

 CMR task 274000-00001-1-C: interval reduced from 10000 FH to 6900FH. 

 CMR task 274000-00003-1-C: “NOTE” added in order to simplify the applicability. 
A330 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX 1 - SUMMARY OF CHANGES

ISSUE: AUG 27/13 ALS PART 3 SUMMARY OF CHANGES PAGE: APX1-11 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

Iss / Rev 

Date Summary of Changes (ALS Part 3 – CMR)

04 

(continued) 

 CMR task 279000-00002-1-C: interval escalated from 18 MO or 8000 FH (whichever 

comes first) to 24 MO or 12000 FH (whichever comes first). 

 CMR task 279000-00004-1-C: interval escalated from 10000 FH to 12000 FH and SB 

references are removed from the applicability. 

 CMR task 282400-G0001-1-C: the related MRBR task 28.24.00/03 added. 

 CMR task 282400-P0001-1-C: the related MRBR task 28.24.00/03 added. 

 CMR task 282600-00001-1-C: SB references are removed from the applicability. 

 CMR task 282700-00001-1-C: SB references are removed from the applicability. 

 CMR task 282700-00001-2-C: SB references are removed from the applicability. 

 CMR task 282700-00001-3-C: SB references are removed from the applicability. 

 CMR task 292000-00001-1-C interval escalated from 24 MO or 10000 FH (whichever 

comes first) to 24 MO or 12000 FH (whichever comes first). 

 CMR task 352002-00004-1-C: task description and related MRBR task reference 

amended in order to reflect the last MRBR revision. 

 CMR task 465500-00001-1-C: applicability changed to add PRE MOD 202854. Note that 

CMR task 465500-00001-1-C is no more applicable to A330 aircraft POST-MOD 

58865 on which MOD 202854 is embodied. 

 CMR task 525111-00001-1-C: SB references are removed from the applicability. 

New CMR tasks: 

 CMR task Two Stars 282700-00002-1-C “FUNCTIONAL CHECK OF TRIM TANK 

TRANSFER LINE SHROUD CONNECTORS” at 28000 FH applicable to all A330 aircraft. 

 CMR task Two Stars 352002-00009-1-C “FUNCTIONAL CHECK OF AUTOMATIC 

SYSTEM OPERATION” at 9500 FH applicable to aircraft POST MOD 40257 PRE MOD 

49144. 

 CMR task Two Stars 352002-00010-1-C “OPERATIONAL CHECK OF MANUAL 

SYSTEM OPERATION” at 9500 FH applicable to aircraft POST MOD 40257 PRE MOD 

49144. 

 CMR task Two Stars 465500-00002-1-C “OPERATIONAL CHECK OF OIT SHEDDING 

IN LAND RECOVERY CONFIGURATON” at 8000 FH applicable to aircraft POST MOD 

202475. 

CMR tasks removed 

 Removal of CMR 213100-00001-1-C deleted at revision 03. 

 Removal of CMR 274000-00001-2-C deleted at revision 03. 

 Removal of CMR 279000-00003-1-C deleted at revision 03. 
A330 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX2 - ABBREVIATIONS

ISSUE: AUG 27/13 ALS PART 3 ABBREVIATIONS PAGE: APX2-1 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

ABBREVIATION MEANING 

AC Alternative Current 

AD Airworthiness Directive 

ALS Airworthiness Limitations Section 

AMOC Alternative Method Of Compliance 

BITE Built-In Test Equipment 

Cal. Calendar 

CMR Certification Maintenance Requirements 

CNCA Consigne de Navigabilité de Couverture Administrative 

Administrative Cover Airworthiness Directive 

D Deleted 

DSG Design Service Goal 

EASA European Aviation Safety Agency 

FAA Federal Aviation Administration 

FC Flight Cycles 

FH Flight Hours 

FCPC Flight Control Primary Computer 

FCSC Flight Control Secondary Computer 

FWD Forward 

GE General Electric 

GSAC Groupement pour la Sécurité de l’Aviation Civile 

ICAO International Civil Aviation Organization 

IPC Illustrated Parts Catalog 

ISG Intermediate Service Goal 

JAR Joint Aviation Requirements 

LDG Landings 

MO Months 

MOD Modification 

MPD Maintenance Planning Document 

MRBR Maintenance Review Board Report 

MRO Maintenance, Repair and Overhaul organisations 

MSI Maintenance Significant Item 
A330 AIRWORTHINESS LIMITATIONS SECTION 

ALS PART 3

CERTIFICATION MAINTENANCE REQUIREMENTS

APPENDIX2 - ABBREVIATIONS

ISSUE: AUG 27/13 ALS PART 3 ABBREVIATIONS PAGE: APX2-2 

AIRBUS SAS 2013. All rights reserved. Confidential and proprietary document. 

ABBREVIATION MEANING 

N New 

PTLU Pedal Travel Limitation Unit 

PW Pratt and Whitney 

R Revised 

RAT Ram Air Turbine 

ROR Record Of Revisions 

SB Service Bulletins 

SYS System 

THS Trimmable Horizontal Stabilizer 

TOC Table Of Contents 

WV Weight Variant 

Ye Year