ATRATR42

ID: 17-142
Issue date: 2017-10-09
Source: EASA
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Time Limits / Maintenance Checks – Certification Maintenance Requirements and Airworthiness Limitations – Amendments send comment

EASA PAD No.: 17-142


Notification of a proposal to issue
an Airworthiness Directive
PAD No.: 17-142
Issued: 09 October 2017
Note: This Proposed Airworthiness Directive (PAD) is issued by EASA, acting in accordance with
Regulation (EC) 216/2008 on behalf of the European Union, its Member States and of the
European third countries that participate in the activities of EASA under Article 66 of that
Regulation.

In accordance with the EASA Continuing Airworthiness Procedures, the Executive Director is proposing the issuance of an EASA Airworthiness Directive
(AD), applicable to the aeronautical product(s) identified below.
All interested persons may send their comments, referencing the PAD Number above, to the e-mail address specified in the ‘Remarks’ section, prior to
the consultation date indicated.


Design Approval Holder’s Name: Type/Model designation(s):
ATR–GIE AVIONS de TRANSPORT REGIONAL ATR 42 aeroplanes

Effective Date:
[TBD - standard: 14 days after AD issue date]
TCDS Number(s): EASA.A.084
Foreign AD: Not applicable
Supersedure: None


ATA 05 – Time Limits / Maintenance Checks – Certification Maintenance
Requirements and Airworthiness Limitations – Amendments


Manufacturer(s):

ATR-GIE Avions de Transport Régional (formerly Aerospatiale – Aeritalia, Aerospatiale – Alenia,
Aerospatiale ATR – ALENIA, EADS ATR – Alenia)

Applicability:

ATR 42-400 and ATR 42-500 aeroplanes, all manufacturer serial numbers.

Reason:

The airworthiness limitations and certification maintenance requirements (CMR) for ATR
aeroplanes, which are approved by EASA, are currently defined and published in the ATR42-400/-
500 Time Limits (TL) document. These instructions have been identified as mandatory for continued
airworthiness.

Failure to accomplish these instructions could result in an unsafe condition.

Consequently, ATR published Revision 11 Temporary revision 01 of the ATR42-400/-500 TL
document, which contains new and/or more restrictive CMRs and airworthiness limitations tasks.


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EASA PAD No.: 17-142

For the reasons described above, this AD requires accomplishment of the actions specified in the
ATR42-400/-500 TL document Revision 11 Temporary revision 01, hereafter referred to as ‘the TLD’
in this AD.

This AD, in conjunction with two other ADs related to ATR42-200/-300/-320 and ATR72-101/-102/-
201/-202/-211/-212/-212A aeroplanes, retains the requirements of EASA AD 2009-0242 and EASA
AD 2012-0193. EASA plans, when all three new Final ADs are effective, to cancel EASA AD 2009-
0242 and EASA AD 2012-0193.

Required Action(s) and Compliance Time(s):

Required as indicated, unless accomplished previously:

Replacement of Life Limited Parts and Repetitive Maintenance Actions:
(1) From the effective date of this AD, accomplish the actions as required by paragraph (1.1) and
(1.2) of this AD, as specified in the TLD, as applicable to aeroplane model and depending on
aeroplane configuration.

(1.1) Replace each component before exceeding the applicable life limit.

(1.2) Except as specified in paragraph (2) of this AD, within the thresholds and intervals,
accomplish all applicable maintenance tasks.

Allowed One-time Exceedance of Threshold / Interval:
(2) For specific tasks, as listed in Table 1 of this AD, a one-time exceedance (grace period) of the
applicable threshold is allowed for those aeroplanes that are close to, or have exceeded the
applicable threshold, as specified in the TLD.

Table 1 – Grace Period for CMR Tasks
CMR/MSI task Compliance Time
21.31.00-2A
21.31.00-2B Within 550 flight hours (FH) or 3 months, whichever occurs first after
21.31.00-3A the effective date of this AD
21.31.00-3B

Corrective Action(s):
(3) In case of finding discrepancies during accomplishment of any task as required by paragraph (1)
of this AD, before next flight, accomplish the applicable corrective actions in accordance with
the approved ATR maintenance documentation, or contact ATR for approved instructions and
accomplish those instructions accordingly.

Aircraft Maintenance Programme (AMP) Revision:
(4) Within 12 months after the effective date of this AD, revise the approved AMP, on the basis of
which the operator or the owner ensures the continuing airworthiness of each operated
aeroplane, by incorporating the limitations, tasks and associated thresholds and intervals



TE.CAP.00112-005 © European Aviation Safety Agency. All rights reserved. ISO9001 Certified. Page 2 of 3
Proprietary document. Copies are not controlled. Confirm revision status through the EASA-Internet/Intranet.
An agency of the European Union
EASA PAD No.: 17-142

described in the TLD, as applicable to the aeroplane model and depending on aeroplane
configuration.

Credit:
(5) For an AMP that, on the effective date of this AD, is already updated to incorporate the
maintenance tasks and life limitation as specified in ATR 42-400/-500 TL document Revision 11,
that action ensures (see Note 2 of this AD) the continued accomplishment of those tasks.

Consequently, for an aeroplane to which that AMP applies, it is acceptable to accomplish the
new and more restrictive tasks and limitations, as applicable to aeroplane model and
depending on aeroplane configuration, to comply with paragraph (1) of this AD.

For that AMP, it is acceptable to incorporate the new and more restrictive tasks and limitation,
as applicable to aeroplane model and depending on aeroplane configuration, as defined in the
TLD, into the AMP to comply with paragraph (4) of this AD.

Recording AD compliance:
(6) When the AMP of an aeroplane has been revised as required by paragraph (4) or (5) of this AD,
as applicable, that action ensures (see Note 2 of this AD) continued accomplishment of the
tasks as required by paragraph (1) and (3) of this AD for that aeroplane. Consequently, after
revising the AMP, as required by paragraph (4) or (5) of this AD, as applicable, it is not
necessary that accomplishment of individual action is recorded for demonstration of AD
compliance on a continued basis.

Note 2: For affected ATR 42 aeroplanes registered in Europe, complying with the approved AMP, as
specified in paragraph (4) or (5) of this AD, as applicable, is required by Commission Regulation (EU)
No 1321/2014, Part M.A.301, paragraph 3.

Ref. Publications:

ATR 42-400/-500 Time Limits Document Revision 11 Temporary revision 01, issued on 28 September
2017.

The use of later approved revisions of this document is acceptable for compliance with the
requirements of this AD.

Remarks:
1. This Proposed AD will be closed for consultation on 06 November 2017.

2. Enquiries regarding this PAD should be referred to the EASA Safety Information Section,
Certification Directorate. E-mail: ADs@easa.europa.eu.

3. For any question concerning the technical content of the requirements in this PAD, please
contact: ATR – GIE Avions de Transport Régional, Continued Airworthiness Service,
Telephone: +33 (0)5 62 21 62 21, Fax: +33 (0) 5 62 21 67 18,
E-mail: continued.airworthiness@atr-aircraft.com.




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This is a partial extract of the full document - please refer to the actual report for full information.
Sources as credited.