Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Turbofan Engines

[Federal Register Volume 79, Number 64 (Thursday, April 3, 2014)]
[Rules and Regulations]
[Pages 18617-18619]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2014-06632]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2006-24777; Directorate Identifier 2006-NE-19-AD; 
Amendment 39-17809; AD 2014-06-05]
RIN 2120-AA64


Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG 
Turbofan Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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SUMMARY: We are superseding airworthiness directive (AD) 2007-03-02 for 
all Rolls-Royce Deutschland (RRD) Tay 620-15, Tay 650-15, and Tay 651-
54 turbofan engines. AD 2007-03-02 required an ultrasonic inspection 
(UI) of low-pressure (LP) compressor fan blades for cracks on certain 
serial number (S/N) Tay 650-15 engines. AD 2007-03-02 also required, 
for all Tay 611-8, 620-15, Tay 650-15, and Tay 651-54 engines, initial 
and repetitive UIs of LP compressor fan blades. AD 2007-03-02 also 
required, for Tay 650-15 and Tay 651-54 engines, UIs of LP compressor 
fan blades whenever the blade set is removed from one engine and 
installed on a different engine. This AD requires additional 
inspections for the affected engines and removal of the Tay 611-8 
engine from the applicability. This AD was prompted by a report of an 
additional engine failure due to multiple fan blade separation. We are 
issuing this AD to prevent failure of the LP compressor fan blade, 
engine failure, and damage to the airplane.

DATES: This AD is effective May 8, 2014. Federal Register approved the 
incorporation by reference of a certain publication listed in this AD 
as of May 8, 2014.

ADDRESSES: For service information identified in this AD, contact 
Rolls-Royce Deutschland Ltd & Co KG, Eschenweg 11, D-15827 
Blankenfelde--Mahlow, Germany; phone: 49 0 33 7086 1200; fax: 49 0 33 
7086 1212. You may view this service information at the FAA, Engine & 
Propeller Directorate, 12 New England Executive Park, Burlington, MA. 
For information on the availability of this material at the FAA, call 
781-238-7125.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://www.regulations.gov; by searching for and locating Docket No. FAA-2006-
24777; or in person at the Docket Management Facility between 9 a.m. 
and 5 p.m., Monday through Friday, except Federal holidays. The AD 
docket contains this AD, the mandatory continuing airworthiness 
information (MCAI), the regulatory evaluation, any comments received, 
and other information. The address for the Docket Office (phone: 800-
647-5527) is Document Management Facility, U.S. Department of 
Transportation, Docket Operations, M-30, West Building Ground Floor, 
Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590.

FOR FURTHER INFORMATION CONTACT: Anthony W. Cerra Jr., Aerospace 
Engineer, Engine & Propeller Directorate, FAA, 12 New England Executive 
Park, Burlington, MA 01803; phone: 781-238-7128; fax: 781-238-7199; 
email: [email protected].

SUPPLEMENTARY INFORMATION: 

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 to supersede AD 2007-03-02, Amendment 39-14913 (72 FR 3936, 
January 29, 2007), (``AD 2007-03-02''). AD 2007-03-02 applied to all 
RRD Tay 611-8 and Tay 620-15 turbofan engines with LP compressor 
module, part number (P/N) M01100AA or P/N M01100AB, installed, and Tay 
650-15 and Tay 651-54 turbofan engines with LP compressor module, P/N 
M01300AA or P/N M01300AB, installed. The NPRM published in the Federal 
Register on November 29, 2013 (78 FR 71532). The NPRM proposed to 
require a UI of LP compressor fan blades for cracks on certain S/N Tay 
650-15 engines; initial and repetitive UIs of LP compressor fan blades 
for all Tay 620-15, Tay 650-15, and Tay 651-54 engines; and UIs of LP 
compressor fan blades whenever the blade set is removed from one engine 
and installed on a different engine for Tay 650-15 and Tay 651-54 
engines. The NPRM also proposed to require additional inspections for 
the affected engines and removal of the Tay 611-8 engine from the 
applicability of this AD.

Comments

    We gave the public the opportunity to participate in developing 
this AD. We received no comments on the NPRM (78 FR 71532, November 29, 
2013).

Conclusion

    We reviewed the relevant data and determined that air safety and 
the public interest require adopting this AD as proposed.

Costs of Compliance

    We estimate that this AD affects about 52 engines installed on 
airplanes of U.S. registry. We also estimate that it will take about 4 
hours per engine to remove and inspect an LP compressor blade set. The 
average labor rate is $85 per hour. Prorated parts life will cost about 
$11,750 per engine. Based on these figures, we estimate that the cost 
of this AD on U.S. operators is $628,680.

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, Section 106, describes the 
authority of the FAA Administrator. Subtitle VII, Aviation Programs, 
describes in more detail the scope of the Agency's authority.
    We are issuing this rulemaking under the authority described in 
Subtitle VII, Part A, Subpart III, Section 44701, ``General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation

[[Page 18618]]

is within the scope of that authority because it addresses an unsafe 
condition that is likely to exist or develop on products identified in 
this rulemaking action.

Regulatory Findings

    This AD will not have federalism implications under Executive Order 
13132. This AD will not have a substantial direct effect on the States, 
on the relationship between the national government and the States, or 
on the distribution of power and responsibilities among the various 
levels of government.
    For the reasons discussed above, I certify that this AD:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Is not a ``significant rule'' under DOT Regulatory Policies and 
Procedures (44 FR 11034, February 26, 1979),
    (3) Will not affect intrastate aviation in Alaska to the extent 
that it justifies making a regulatory distinction, and
    (4) Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

Adoption of the Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA amends part 39 of the Federal Aviation 
Regulations (14 CFR part 39) as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
1. The authority citation for part 39 continues to read as follows:

    Authority: 49 U.S.C. 106(g), 40113, 44701.


Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by removing airworthiness directive (AD) 
2007-03-02, Amendment 39-14913 (72 FR 3936, January 29, 2007) and 
adding the following new AD:

2014-06-05 Rolls-Royce Deutschland Ltd & Co KG: (Type Certificate 
previously held by Rolls-Royce plc) Amendment 39-17809; Docket No. 
FAA-2006-24777; Directorate Identifier 2006-NE-19-AD.

(a) Effective Date

    This AD is effective May 8, 2014.

(b) Affected ADs

    This AD supersedes AD 2007-03-02, Amendment 39-14913 (72 FR 
3936, January 29, 2007).

(c) Applicability

    This AD applies to Rolls-Royce Deutschland Ltd & Co KG (RRD) Tay 
620-15 turbofan engines with low-pressure (LP) compressor module, 
part number (P/N) M01100AA or P/N M01100AB, installed, and Tay 650-
15 and Tay 651-54 turbofan engines with LP compressor module, P/N 
M01300AA or P/N M01300AB, installed.

(d) Unsafe Condition

    This AD was prompted by a report of an additional engine failure 
due to multiple fan blade separation. We are issuing this AD to 
prevent failure of the LP compressor fan blade, engine failure, and 
damage to the airplane.

(e) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.
    (1) For Tay 650-15 and Tay 651-54 engine LP compressor fan blade 
ultrasonic inspection (UI):
    (i) After the effective date of this AD, whenever LP compressor 
fan blades are removed from an engine, before re-installation on a 
different engine, inspect the LP compressor fan blades and 
accomplish a UI of the LP compressor fan blades in accordance with 
Instruction I of paragraph 3 of RRD Alert Non-Modification Service 
Bulletin (NMSB) TAY-72-A1442, Revision 6, dated August 26, 2013.
    (ii) After the effective date of this AD, during each engine 
shop visit, before return to service of the engine, inspect the LP 
compressor fan blades and accomplish a UI of the LP compressor fan 
blades in accordance with Instruction II of paragraph 3 of RRD Alert 
NMSB TAY-72-A1442, Revision 6, dated August 26, 2013.
    (2) For Tay 620-15 engine LP compressor fan blade UI, after the 
effective date of this AD, before return to service of an engine 
after every mid-life, or every calendar-life, or every overhaul shop 
visit, inspect the LP compressor fan blades and accomplish a UI of 
the LP compressor fan blades in accordance with Instruction II of 
paragraph 3 of RRD Alert NMSB TAY-72-A1442, Revision 6, dated August 
26, 2013.
    (3) For Tay 620-15, Tay 650-15, and Tay 651-54 engine LP 
compressor fan blade and rotor disk replacement, if during any 
inspection required by paragraph (e)(1) or (e)(2) of this AD, any LP 
compressor fan blade is found cracked, before next flight or return 
to service of the engine, replace the complete set of the LP 
compressor fan blades and the LP compressor rotor disk.

(f) Credit for Previous Actions

    If, before the effective date of this AD, you inspected or 
replaced any Tay 620-15, Tay 650-15, or Tay 651-54 turbofan engine 
LP compressor fan blade or rotor disk assembly using RRD Alert NMSB 
TAY-72-A1442, Revision 5, dated May 31, 2013, or earlier, you have 
satisfied the requirements of paragraphs (e)(1) through (e)(3) of 
this AD.

(g) Definitions

    For the purposes of this AD for Tay 620-15 engines:
    (1) A mid-life shop visit is an engine shop visit accomplished 
before accumulating 12,000 engine flight cycles since new (FCSN) or 
flight cycles (FC) since last engine mid-life shop visit;
    (2) A calendar-life shop visit is an engine shop visit 
accomplished within 10 years since new or since the last engine 
calendar-life shop visit; and
    (3) An overhaul shop visit is an engine shop visit accomplished 
before accumulating 22,000 engine FCSN or FC since the last engine 
overhaul shop visit.

(h) Alternative Methods of Compliance (AMOCs)

    The Manager, Engine Certification Office, may approve AMOCs for 
this AD. Use the procedures found in 14 CFR 39.19 to make your 
request.

(i) Related Information

    (1) For more information about this AD, contact Anthony W. Cerra 
Jr., Aerospace Engineer, Engine & Propeller Directorate, FAA, 12 New 
England Executive Park, Burlington, MA 01803; phone: 781-238-7128; 
fax: 781-238-7199; email: [email protected].
    (2) Refer to MCAI European Aviation Safety Agency, AD 2013-
151R2, dated September 2, 2013, for more information. You may 
examine the MCAI in the AD docket on the Internet at http://www.regulations.gov/#!documentDetail;D=FAA-2006-24777-0012.
    (3) You may view this service information at the FAA, Engine & 
Propeller Directorate, 12 New England Executive Park, Burlington, 
MA. For information on the availability of this material at the FAA, 
call 781-238-7125.

(j) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference (IBR) of the service information listed 
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
    (2) You must use this service information as applicable to do 
the actions required by this AD, unless the AD specifies otherwise.
    (i) Rolls-Royce Deutschland Ltd & Co KG Alert Non-Modification 
Service Bulletin No. TAY-72-A1442, Revision 6, dated August 26, 
2013.
    (ii) Reserved.
    (3) For RRD service information identified in this AD, contact 
Rolls-Royce Deutschland Ltd & Co KG, Eschenweg 11, D-15827 
Blankenfelde-Mahlow, Germany; phone: 49 0 33 7086 1200; fax: 49 0 33 
7086 1212.
    (4) You may view this service information at FAA, Engine & 
Propeller Directorate, 12 New England Executive Park, Burlington, 
MA. For information on the availability of this material at the FAA, 
call 781-238-7125.
    (5) You may view this service information at the National 
Archives and Records Administration (NARA). For information on the 
availability of this material at NARA, call 202-741-6030, or go to: 
http://www.archives.gov/federal-register/cfr/ibr-locations.html.


[[Page 18619]]


    Issued in Burlington, Massachusetts, on March 18, 2014.
Ann C. Mollica,
Acting Assistant Directorate Manager, Engine & Propeller Directorate, 
Aircraft Certification Service.
[FR Doc. 2014-06632 Filed 4-2-14; 8:45 am]
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