AD 97-06-13R1

AD Final Rules - 97-06-13R1.pdf
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AD Number:
97-06-13R1
Document Type:
AD Final Rules
Docket Number:
FAA-2006-25713
Subject Heading:
Airworthiness Directives; Rolls-Royce plc Models RB211 Trent 892, 884, 877, 875, and 892B Series Tur...Show more
Subject:
Rescinds AD 97-06-13.
Status:
Current
Citation:
Federal Register: October 2, 2006 (Volume 71, Number 190)
Citation Publish Date:
10/02/2006
Effective Date:
10/02/2006
Make:
Rolls-Royce plc
Model:
RB211-Trent-892B-17 | RB211-Trent 875-17 | RB211-Trent 877-17 | RB211-Trent 884-17 | RB211-Trent 892-17
Product Type:
Engine
Product Subtype:
Affected AD:
Superseded AD:
97-06-13
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
CORRECTION: Today, October 2, 2006, there was an error in the Federal Register, page 57888, in the middle column, paragraph (a). The rescinded AD shou... ...Show more
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[Federal Register: October 2, 2006 (Volume 71, Number 190)]


[Rules and Regulations]


[Page 57887-57888]


From the Federal Register Online via GPO Access [wais.access.gpo.gov]


[DOCID:fr02oc06-4]


–––––––––––––––––––––––––––––––––––


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.


–––––––––––––––––––––––––––––––––––


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


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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 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.


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