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

[Federal Register Volume 79, Number 113 (Thursday, June 12, 2014)]
[Rules and Regulations]
[Pages 33679-33681]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2014-13532]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2013-0882; Directorate Identifier 2013-NE-29-AD; 
Amendment 39-17864; AD 2014-12-03]
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 adopting a new airworthiness directive (AD) for all 
Rolls-Royce Deutschland Ltd & Co KG (RRD) BR700-725A1-12 turbofan 
engines. This AD requires removal of affected fuel metering units 
(FMUs) on RRD BR700-725A1-12 engines. This AD was prompted by reports 
of wear on the receptors of the double-ended unions in the FMU housing 
on BR700-725A1-12 engines causing fuel leakage. We are issuing this AD 
to prevent failure of the FMU, which could lead to damage to one or 
more engines and damage to the airplane.

DATES: This AD becomes effective July 17, 2014.

ADDRESSES: For service information identified in this AD, contact 
Rolls-Royce Deutschland Ltd & Co KG, Eschenweg 11, Dahlewitz, 15827 
Blankenfelde-Mahlow, Germany; phone: 49 0 33-7086-1883; fax: 49 0 33-
7086-3276. You may view this service information at the FAA, Engine & 
Propeller Directorate, 12 New England Executive Park, Burlington, MA 
01803. 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-2013-
0882; 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

[[Page 33680]]

New Jersey Avenue SE., Washington, DC 20590.

FOR FURTHER INFORMATION CONTACT: Michael Davison, Aerospace Engineer, 
Engine Certification Office, FAA, Engine & Propeller Directorate, 12 
New England Executive Park, Burlington, MA 01803; phone: (781) 238-
7156; fax: (781) 238-7199; email: [email protected].

SUPPLEMENTARY INFORMATION:

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 by adding an AD that would apply to the specified products. The 
NPRM was published in the Federal Register on February 14, 2014 (79 FR 
8905). The NPRM proposed to correct an unsafe condition for the 
specified products. The MCAI states:

    Occurrences have been reported of finding wear on the receptors 
of the double-ended unions in the Fuel Metering Unit (FMU) housing 
on BR700-725A1-12 engines.
    This condition, if not corrected, could lead to fuel leak 
resulting in engine in-flight shutdown and consequent reduced 
control of the aeroplane.

Comments

    We gave the public the opportunity to participate in developing 
this AD. We received no comments on the NPRM (79 FR 8905, February 14, 
2014).

Conclusion

    We reviewed the available 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 24 RRD turbofan engines installed 
on aircraft of U.S. registry. We also estimate that it would take about 
6 hours per engine to comply with this AD. The average labor rate is 
$85 per hour. Required parts cost about $293,960 per engine. Based on 
these figures, we estimate the cost of this AD on U.S. operators to be 
$7,067,280.

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 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

    We determined that 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 this AD:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Is not a ``significant rule'' under the 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 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 adding the following new airworthiness 
directive (AD):

2014-12-03 Rolls-Royce Deutschland Ltd & Co KG: Amendment 39-17864; 
Docket No. FAA-2013-0882; Directorate Identifier 2013-NE-29-AD.

(a) Effective Date

    This AD becomes effective July 17, 2014.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to all Rolls-Royce Deutschland Ltd & Co KG (RRD) 
BR700-725A1-12 turbofan engines.

(d) Reason

    This AD was prompted by reports of wear on the receptors of the 
double-ended unions in the fuel metering unit (FMU) housing on RRD 
BR700-725A1-12 engines causing fuel leakage. We are issuing this AD 
to prevent failure of the FMU, which could lead to damage to one or 
more engines and damage to the airplane.

(e) Actions and Compliance

    Comply with this AD within the compliance times specified, 
unless already done.
    (1) After the effective date of this AD, before the FMU has 
accumulated 650 flight hours (FHs) since new, or within 30 days, 
whichever occurs later, remove FMU, part number (P/N) G3000FMU02 or 
P/N G3000FMU03, and replace it with a part eligible for 
installation.
    (2) Thereafter, remove the FMU at intervals not to exceed 650 
FHs and replace it with a part eligible for installation.

(f) Installation Prohibition

    After the effective date of this AD, do not install FMU, P/N 
G3000FMU02, onto any engine, or install any engine with FMU, P/N 
G3000FMU02, onto any airplane.

(g) Definition

    For the purpose of this AD, an FMU eligible for installation is 
a new FMU or an FMU with P/N G3000FMU03 that has accumulated fewer 
than 650 FHs since installation on any airplane or since last repair 
using RRD Alert Non-Modification Service Bulletin (NMSB) No. SB-
BR700-73-A900309, Revision 1, dated November 8, 2013.

(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 Michael Davison, 
Aerospace Engineer, Engine Certification Office, FAA, Engine & 
Propeller Directorate, 12 New England Executive Park, Burlington, MA 
01803; phone: (781) 238-7156; fax: (781) 238-7199; email: 
[email protected].
    (2) Refer to MCAI European Aviation Safety Agency AD 2013-
0229R1, dated November 21, 2013 for more information. You may 
examine the MCAI in the AD docket on the Internet by searching for 
it and locating it in Docket No. FAA-2013-0882.
    (3) RRD Alert NMSB No. SB-BR700-73-A900309, Revision 1, dated 
November 8, 2013, which is not incorporated by reference in this AD, 
can be obtained from RRD, using the contact information in paragraph 
(i)(4) of this AD.
    (4) For service information identified in this AD, contact 
Rolls-Royce Deutschland Ltd & Co KG, Eschenweg 11, Dahlewitz, 15827

[[Page 33681]]

Blankenfelde-Mahlow, Germany; phone: 49 0 33-7086-1944; fax: 49 0 
33-7086-3276.
    (5) 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

    None.

    Issued in Burlington, Massachusetts, on June 3, 2014.
Colleen M. D'Alessandro,
Assistant Directorate Manager, Engine & Propeller Directorate, Aircraft 
Certification Service.
[FR Doc. 2014-13532 Filed 6-11-14; 8:45 am]
BILLING CODE 4910-13-P

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