EASA AIRWORTHINESS DIRECTIVE

AD No : 2007-0270 R1

Date: 07 November 2007

No person may operate an aircraft to which an Airworthiness Di~ective applies, except in accordance with the

requirements of that Airworthiness Directive unless otherwise agreed with the Authority of the Slate of Registry.

Type Approval Holder's Name:

BAE SYSTEMS (Operations) Limited

TeDS Number: United Kingdom BA16

Type/Model designation(s):

SAe 146 and Avro 146~RJai~craft

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Foreign AD: Not applicable

Revision: This Airworthiness Directive (AD) revises and replaces EASA AD 2007~0270 dated 16

October 2007. 'I .

ATA 57

Manufadurer(s):

Applicability:

Reason:

Wings - Rear Spar Root Jbint Attachment Fittings at Wing Rib 2

- Inspection

BAE SYSTEMS (Operations) Ltd, British Aerospace (Commercial Aircraft)

Ltd, British Aerospace (Operations) Ltd, British Aerospace pic, British

Aerospace Regional Aircraft Ltd, British Aerospace Regional Aircraft Ltd

trading as Avro International Aerospace.

BAe 146 and AVRO 146-RJ aircraft, all models, all serial numberl?

British Aerospace originally isiued Service Bulletin (SB) 57~033 in 1989 to

detectfuelleaks and failed fasteners in the region of the rear spar· root joint

I attachment fitting at wing rib 2) Accomplishment of this SB was mandated

by CM United Kingdom AD 0~4-09-89. Revisions 1 through 7 of this SB

were introduced to inspect pre: mod HCM01447A standard installations for

fuel leaks and loose or brokenlbolts. Modification HCM01447A introduced

tension bolts in the attachment fitting instead of the previous Hi-Lok bolts.

Revision 8 of the SB introduc~d inspection instructions for post modification

HCM 01447A installations beqause fuel tank leaks and failed fasteners

have subsequently been found on aircraft post modification HCM01447A

Inspections of the post-mod HCM01447A standard are required to maintain

the structural integrity of the Wing_ 8AE Systems has now published S8 57-

033 Revision 9 that specifies additional, calendar-time based, inspection

criteria to control the stress corrosion failures of the pre and post

modification HCM01447A instkllations.

EASA AD 2007-0270 supersedes CM UKAD 044-09-89 and requires the

accomplishment of inspection~ and corrective actions, as necessary, in

accordance with BAE- System~ sa 57-033 Revision 9.

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This AD is revised to clarify that the calendar compliance times are to be

counted from the effective date, not from the sa issue date.

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Effective Date: 30 October 2007

Required as indicated, unless previously accomplished:

Compliance: From the effective date of this directive, perform the inspections and

corrective actions, as necessary, at the thresholds and intervals specified in

BAE Systems (Operations) Ud Service Bulletin IS8.57-033 Revision 9 or

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later approved revisions, except that the calendar thresholds for the

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inspections are defined from the effective date of the AD and not from the

issue date of the service bulletin. .

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Ref. Publications: BAE SYSTEMS (Operations) S~rvice Bulletin tSB 57..{)33 Revision 9, 0'

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later approved revisions.

,. If requested and appropriately substantiated, EASA can accept

Alternative Methods of Compliance for this AD.

2 The original issue of this AD was posted on 11 September 2007 as

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PAD 07-165 for consultation until 09 October 2007. The Comment

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Response Document can be found at http://ad.easa_europa.eu/

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3. Enquiries regarding this Aq should be referred to the AD Focal PointRemarks: Certification Directorate, EiSA, E-mail: Ads@easa,europa_eu

• 4 For any questions concerning the technical content of the requirements

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in this AD, please contact: 1

BAE SYSTEMS (OPERATIONS),

Project Management Group, Customer Information Department,

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Prestwick International Airport, Ayrshire, KA9 2RW, Scotland;

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Telephone: +44 1292675207, Fax: +44 1292675704;

. E-mail: RApublicatjons@baesystems.com

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