EASA AD No.: 2013-0151R2

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EASA AIRWORTHINESS DIRECTIVE 

AD No.: 2013-0151R2

Date: 02 September 2013

Note: This Airworthiness Directive (AD) is issued by EASA, acting in accordance with Regulation 

(EC) No 216/2008 on behalf of the European Community, its Member States and of the European 

third countries that participate in the activities of EASA under Article 66 of that Regulation.

This AD is issued in accordance with EU 748/2012, Part 21.A.3B. In accordance with EC 2042/2003 Annex I, Part M.A.301, the 

continuing airworthiness of an aircraft shall be ensured by accomplishing any applicable ADs. Consequently, no person may operate 

an aircraft to which an AD applies, except in accordance with the requirements of that AD, unless otherwise specified by the Agency 

[EC 2042/2003 Annex I, Part M.A.303] or agreed with the Authority of the State of Registry [EC 216/2008, Article 14(4) exemption]. 

Design Approval Holder’s Name: 

Rolls-Royce Deutschland Ltd & Co KG 

Type/Model designation(s): 

Tay 620, Tay 650 and Tay 651 engines 

TCDS Number: EASA.E.063 

Foreign AD: Not applicable 

Revision: This AD revises EASA AD 2013-0151R1 dated 30 July 2013. 

ATA 72 Engine – Low Pressure Compressor / Fan Blade – Inspection / 

Replacement 

Manufacturer(s): Rolls-Royce plc 

Applicability: Tay 620-15, Tay 620-15/20, Tay 650-15, Tay 650-15/10 and Tay 651-54 

engines, all serial numbers. 

These engines are known to be installed on, but not limited to, Fokker F28 Mark 

0070 and Mark 0100, and on Boeing 727 (STC-modified) series aeroplanes. 

Reason: The Tay 650-15 engines suffered a number of in-service multiple low pressure 

compressor (LPC) fan blade off events. In addition, a set of Tay 650-15 LPC fan 

blades were found during inspection having cracking at the fan blade root. 

Subsequent investigation revealed that fan blades failed due to cracking initiated 

in the fan blade root, most likely induced by a fan flutter. 

To address this unsafe condition Rolls Royce plc, and after transfer of the type 

certificate for the Tay engines to Rolls-Royce Deutschland Ltd & Co KG (RRD) in 

2002, RRD issued Alert Non Modification Service Bulletin (NMSB) TAY-72-

A1442 (at various revisions) to provide instructions for LPC fan blade root 

inspections to early detect fan blade crack initiation. 

Consequently, EASA issued AD 2007-0113 to require ultrasonic inspections of 

LPC fan blades for Tay 650-15 and 651-54 engines and corrective action, 

depending on findings. 

Since that AD was issued, a Tay 620-15 engine suffered a multiple fan blade off 

event, where flutter was considered as a failure cause mechanism. Prompted by 

this event, RRD issued Alert NMSB TAY-72-A1442 at Revision 5 and EASA 

issued EASA AD 2013-0151 to make the LPC fan blade inspection instructions 
EASA AD No.: 2013-0151R2

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mandatory also for Tay 620-15 engines, later revised to AD 2013-0151R1. 

Since EASA AD 2013-0151R1 was issued, the requirement of ultrasonic 

inspection mandated to be accomplished before a re-installation of LPC fan 

blades on the same engine, was reassessed and found not required to assure 

safety. 

For the reasons described above, Revision 2 of this AD is issued to require 

ultrasonic inspection of LPC fan blades before re-installation on different engines 

only. 

Effective Date: Revision 2: 02 September 2013 

Original issue and Revision 1: 30 July 2013 

Required Action(s) 

and Compliance 

Time(s): 

Required as indicated, unless accomplished previously: 

Tay 650-15, Tay 650-15/10 and Tay 651-54 engines: 

(1) From 10 May 2007 [the effective date of AD 2007-0113], whenever the LPC 

fan blades are removed from an engine, before re-installation on a different 

engine, inspect the LPC fan blades and accomplish an ultrasonic inspection 

of the LPC fan blades in accordance with the instructions of RRD Alert 

NMSB TAY-72-A1442 at Revision 5 or Revision 6. 

 [Deleted] 

(2) From 10 May 2007 [the effective date of AD 2007-0113], during each engine 

shop visit, before release to service of the engine, inspect the LPC fan 

blades and accomplish an ultrasonic inspection of the LPC fan blades in 

accordance with the instructions of RRD Alert NMSB TAY-72-A1442 at 

Revision 5 or Revision 6. 

Tay 620-15 and Tay 620-15/20 engines: 

(3) From 30 July 2013 [the effective date of AD 2013-0151R1], before release 

to service of an engine after every mid-life, or every calendar life, or every 

overhaul shop visit, inspect the LPC fan blades and accomplish an 

ultrasonic inspection of the LPC fan blades in accordance with the 

instructions of RRD Alert NMSB TAY-72-A1442 at Revision 5 or Revision 6. 

Note: Engine mid-life shop visit is an engine shop visit accomplished before 

accumulation of 12 000 engine (flight) cycles since new or the last 

engine mid-life shop visit; calendar life shop visit is an engine shop 

visit accomplished within 10 years since new or the last engine 

calendar life shop visit; overhaul shop visit is an engine shop visit 

accomplished before accumulation of 22 000 engine (flight) cycles 

since new or last engine overhaul shop visit. 

All models: 

(4) If, during any inspection as required by paragraph (1), (2) or (3) of this AD, 

any LPC fan blade is found cracked, before next flight or release to service 

of the engine, replace the complete set of the LPC fan blades and the LPC 

rotor disc with a serviceable set of the LPC fan blades and LPC rotor disc. 

(5) Inspections and LPC fan blade replacements, accomplished before 30 July 

2013 [the effective date of AD 2013-0151R1] in accordance with the 

instructions of RRD Alert NMSB TAY-72-A1442 from Initial issue up to 

Revision 4, are acceptable to comply with the requirements of paragraphs 

(1) or (2) or (3) of this AD, as applicable. 

(6) From the effective date of this AD, do not install a LPC fan blades on an 

engine, or an engine on an aeroplane, unless in compliance with the 

requirements of this AD. 

Ref. Publications: RRD Alert NMSB TAY-72-A1442 Revision 05, dated 31 May 2013 or 
EASA AD No.: 2013-0151R2

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Revision 06 dated 26 August 2013. 

The use of later approved revisions of these documents is acceptable for 

compliance with the requirements of this AD. 

Remarks: 1. If requested and appropriately substantiated, EASA can approve Alternative 

Methods of Compliance for this AD. 

2. Based on the required actions and the compliance time, EASA have decided 

to issue a Final AD with Request for Comments, postponing the public 

consultation process until after publication. 

3. Enquiries regarding this AD should be referred to the Safety Information 

Section, Executive Directorate, EASA. E-mail: ADs@easa.europa.eu. 

4. For any question concerning the technical content of the requirements in this 

AD, please contact: 

Rolls-Royce Deutschland Ltd & Co KG 

Eschenweg 11 – 15827 Dahlewitz – Germany 

Tel. + 49 3370861200, Fax + 49 3370861212. 

rrd.techhelp@rolls-royce.com.