[Federal Register Volume 71, Number 190 (Monday, October 2, 2006)]
[Rules and Regulations]
[Pages 57887-57888]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: E6-16045]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2006-25713; Directorate Identifier 97-ANE-09; Amendment 
39-14780; AD 97-06-13R1]
RIN 2120-AA64


Airworthiness Directives; Rolls-Royce plc Models RB211 Trent 892, 
884, 877, 875, and 892B Series Turbofan Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule; rescission.

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SUMMARY: This amendment rescinds airworthiness directive (AD) 97-06-13 
for Rolls-Royce plc (RR) models RB211 Trent 892, 884, 877, 875, and 
892B series turbofan engines. That AD requires inspecting and replacing 
certain angle gearbox and intermediate gearbox hardware, and on-going 
repetitive inspections of the magnetic chip detectors. That AD resulted 
from reports of loss of oil from the angle drive upper shroud tube, the 
intermediate gearbox housing, the external gearbox lower bevel box 
housing, and by reports of bearing failures. We intended the 
requirements of that AD to prevent loss of oil, which could cause an 
engine fire, and to prevent in-flight engine shutdowns and airplane 
diversions caused by oil loss and from bearing failures. Since we 
issued that AD, we determined that the inspections and replacements 
required by that AD are no longer required to correct an unsafe 
condition.

DATES: This AD becomes effective October 2, 2006.

ADDRESSES: You may examine the AD docket on the Internet at http://dms.dot.gov or in Room PL-401 on the plaza level of the Nassif 
Building, 400 Seventh Street, SW., Washington, DC.

FOR FURTHER INFORMATION CONTACT: Christopher Spinney, Aerospace 
Engineer, Engine Certification Office, FAA, Engine and Propeller 
Directorate, 12 New England Executive Park, Burlington, MA 01803; 
telephone (781) 238-7175; fax (781) 238-7199.

SUPPLEMENTARY INFORMATION: The FAA proposed to amend 14 CFR part 39 by 
rescinding an existing AD, AD 97-06-13; Amendment 39-9970, for RR 
models RB211 Trent 892, 884, 877, 875, and 892B series turbofan 
engines. That AD requires inspecting and replacing certain angle 
gearbox and intermediate gearbox hardware, and on-going repetitive 
inspections of the magnetic chip detectors. We published the proposed 
NPRM in the Federal Register on April 5, 2006 (71 FR 17035).

Examining the AD Docket

    You may examine the docket that contains the AD, any comments 
received, and any final disposition in person at the Docket Management 
Facility Docket Offices between 9 a.m. and 5 p.m., Monday through 
Friday, except Federal holidays. The Docket Office (telephone (800) 
647-5227) is located on the plaza level of the Department of 
Transportation Nassif Building at the street address stated in 
ADDRESSES. Comments will be available in the AD docket shortly after 
the DMS receives them.

Comments

    We provided the public the opportunity to comment on the proposed 
NPRM rescission. We received no comments on the proposal.

Docket Number Change

    We are transferring the docket for this AD to the Docket Management 
System as part of our on-going docket management consolidation efforts. 
The new Docket No. is FAA-2006-25713. The old Docket No. became the 
Directorate Identifier, which is 97-ANE-09. This final rule might get 
logged into the DMS docket, ahead of the previously collected documents 
from the old docket file, as we are in the process of sending those 
items to the DMS.

Conclusion

    We have carefully reviewed the available data and determined that 
air safety and the public interest require adopting the AD rescission 
as proposed. We are rescinding this AD because we determined that we no 
longer need the inspections and replacements required

[[Page 57888]]

by that AD to correct an unsafe condition.

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 have determined that this AD rescission 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 rescission:
    (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); and
    (3) 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, Safety.

Adoption of the Amendment

0
Accordingly, under the authority delegated to me by the Administrator, 
the Federal Aviation Administration 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 removing Amendment 39-9970 (62 FR 
23339, April 30, 1997) and by adding the following new airworthiness 
directive:

97-06-13R1 Rolls-Royce plc: Amendment 39-14780. Docket No. FAA-2006-
25713; Directorate Identifier 97-ANE-09.

Effective Date

    (a) This rescission of AD 97-09-13 becomes effective October 2, 
2006.

Affected ADs

    (b) This AD rescinds AD 97-06-13, Amendment 39-9970.

Applicability

    (c) This action applies to Rolls-Royce plc models RB211 Trent 
892, 884, 877, 875, and 892B series turbofan engines.

    Issued in Burlington, Massachusetts, on September 25, 2006.
Peter A. White,
Acting Manager, Engine and Propeller Directorate,Aircraft Certification 
Service.
[FR Doc. E6-16045 Filed 9-29-06; 8:45 am]
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