#  AIRBUS SAS 2014. All rights reserved. Confidential and proprietary document.

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# ISSUE: JUL 23/14 

# A330

ALS Part 4

Ageing Systems Maintenance

(ASM)

-

Variation 4.1

# AIRWORTHINESS LIMITATIONS SECTION

ISSUE: JUL 23/14 ALS PART 4 VARIATION 4.1 PAGE: 1/4

6_v1

© AIRBUS SAS 2014. All rights reserved. Confidential and proprietary document. 

# The ALS Part 4 is approved and Variations must also be approved.

The present Variation is approved by European Aviation Safety Agency (EASA).

APPROVAL REFERENCES

A330 ALS Part 4:

REVISION NUMBER APPROVAL

REFERENCE APPROVAL DATE

04 10046192 AUG 27/13

VARIATION:

This Variation is covered by the Certification Document 00G050A134A/C01:

VARIATION

NUMBER ISSUE

NUMBER AFFECTED SECTIONS APPROVAL

REFERENCE APPROVAL DATE

4.1 01 4-2-1

4-3-1 10049982 JUL 23/14

REASON

This Variation aims to provide the impact on the mandatory instructions and airworthiness

limitations published in the A330 ALS Part 4 Revision 04, as a result of the introduction of THSA

new PNR 47147-710 by embodiment of MOD 203659.

APPLICABILITY

This Variation applies to the following aircraft series and models:

AIRCRAFT SERIES AIRCRAFT MODELS WV

A330-300 A330-301 WV000 series, WV010 series, WV050 series

A330-302 WV050 series

A330-303 WV050 series

A330-321 WV000 series, WV010 series

A330-322 WV000 series, WV010 series

A330-323 WV020 series, WV050 series

# AIRWORTHINESS LIMITATIONS SECTION

ISSUE: JUL 23/14 ALS PART 4 VARIATION 4.1 PAGE: 2/4

6_v1

© AIRBUS SAS 2014. All rights reserved. Confidential and proprietary document.



# AIRCRAFT SERIES AIRCRAFT MODELS WV

A330-300 A330-341 WV000 series, WV010 series

A330-342 WV000 series, WV010, series, WV020 series,

WV050 series

A330-343 WV020 series, WV050 series

COMPLIANCE

Airworthiness limitation provided in this Va riation shall be introduced into the Operator’s

maintenance program at the time of MOD 203659 embodiment.

VALIDITY

Airworthiness limitations stated in this Var iation may be negated when airworthiness limitation

changes are published in (a) Variation(s) or a Re vision subsequent to the approval date of this

Variation.

In such case, the validity of this Variation is suspended.

All other airworthiness limitations given in the A330 ALS Part 4 Revision 04 and other current

Variations remain applicable.

Airworthiness limitations stated in this Variation will be published in the next scheduled

Revision.AIRWORTHINESS LIMITATIONS SECTIONISSUE: JUL 23/14ALS PART 4VARIATION 4.1PAGE: 3/43027© AIRBUS SAS 2014. All rights reserved. Confidential and proprietary document.DESCRIPTIONThe EASA approves the introduction of the following part number:ALS Sub-part 4-2-1 SYSTEMS LIFE-LIMITED COMPONENTS/LIFE LIMITSNote: Explanations on the applicability system are provided in the A330 ALS sub-part 4-0 paragraph 3.Explanation notes are located under theassy title.LIFE LIMITS(Whichever occurs first)LIFE LIMITS APPLICABILITYA330-2xxF A330-2xx A330-30x A330-32x/A330-34xNomenclature Part Number FH FC Cal. WV00x WV02xWV05xWV06xWV00xWV01xWV05xWV00xWV01xWV02x WV05xATA 27-44-00 FLIGHT CONTROL – TRIMMABLE HORIZONTAL STABILIZER (THS) HYDRAULIC ACTUATION (FIG. 05)(1) Life limitation to be applied from initial entry into service for THSA originally manufactured as PNR 47147-400 (MOD 45906)and retrofitted into PNR 47147-500 bySB A330-27-3093 (MOD 49591) and subsequently retrofitted into PNR47147-700 by SB A330-27-3143 (MOD 54881) and finally retrofitted into PNR 47147-710by SB A330-27-3198 (MOD 203659).Life limitation to be applied from the time of retrofit into PNR 47147-400 (SB A330-27-3052) for THSA subsequently retrofittedinto PNR 47147-500 (MOD49591/SB A330-27-3093) then retrofitted into PNR 47147-700 by SB A330-27-3143 (MOD 54881) and finally retrofitted into PNR 47147-710 by SB A330-27-3198(MOD 203659). The sum of the accumulated lives PRE and POST SBA330-27-3052 plus PRE and POST SB A330-27-3143 plus PRE and POSTSB A330-27-3198 must not exceed 60000 FH/40000 FC, whichever occurs first.THS Actuator 47147-710 36000 24000 N/A X (1) X (1) X (1) X (1) X (1)AIRWORTHINESS LIMITATIONS SECTIONISSUE: JUL 23/14ALS PART 4VARIATION 4.1PAGE: 4/43027© AIRBUS SAS 2014. All rights reserved. Confidential and proprietary document.ALS Sub-part 4-3-1 SYSTEMS INSTALLATION MAINTENANCE REQUIREMENTS/CONTROLLED AT COMPONENT/SUBASSEMBLY LEVELNote: Explanations on the applicability system are provided in theA330 ALS sub-part 4-0 paragraph 4.ALS PART 4 MAINTENANCE TASKSLIMITATIONS(Whichever occurs first)REFERENCELIMITATIONS APPLICABILITYTask NumberZoneDescriptionThresholdIntervalPNRAIRCRAFT274400-00001-4-E 311312THSA–FIG. 05Detailed inspection of the ball screw assemblyfor integrity of the primary and secondary loadpath and check the Checkable Shear Pins(CSP).This task must be carried out before task274400-00002-1-E.Note: No short-term extension is allowed.700 FHNote700 FHNoteSB A330-27-3102 R08AMM 27-44-5147147-710 A330-300POST 27-3143PRE 92-3046R05PRE 56056274400-00002-1-E 311312THSA–FIG. 05Lubrication of the THSA ball-nut.Note 1: No short-term extension is allowed.Note 2: This task must be carried out at theopportunity of ASM task 274400-00001-4-E once applicable.1000 FHNote 11000 FHNote 1AMM 12-22-27/301 47147-710 A330-300POST203659274400-00003-1-E 311312THSA–FIG. 05Remove complete THSA for No-Back Brake(NBB) carbon disks discard and replace withserviceable THSA unit.Note: The threshold of 12000 FC is the timesince retrofit into PNR 47147-710.12000 FCNote12000 FC AMM 274451-000-801AMM 274451-400-801VSB 47147-27-2147147-710 A330-300POST203659