Airworthiness Directives; Rolls-Royce plc RB211 Trent 800 Series Turbofan Engines, 36422-36424 [E9-17470]

Download as PDF 36422 Federal Register / Vol. 74, No. 140 / Thursday, July 23, 2009 / Proposed Rules Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new airworthiness directive: CFM International S.A.: Docket No. FAA– 2009–0606; Directorate Identifier 2009– NE–11–AD. Comments Due Date (a) The Federal Aviation Administration (FAA) must receive comments on this airworthiness directive (AD) action by September 21, 2009. Affected ADs (b) None. Applicability (c) This AD applies to CFM International S.A. model CFM56–3B1 and -3B2 turbofan engines with 25 degrees midspan shroud fan blades, part numbers (P/Ns) 9527M99P08, 9527M99P09, 9527M99P10, 9527M99P11, 1285M39P01, or fan blade pairs, P/Ns 335– 088–901–0, 335–088–902–0, 335–088–903–0, and 335–088–904–0 installed. These engines are installed on, but not limited to, Boeing 737 series airplanes. Unsafe Condition (d) This AD results from a report of a failed fan blade with severe out-of-limit wear on the underside of the blade platform where it contacts the damper. We are issuing this AD to prevent failure of multiple fan blades, which could result in an uncontained failure of the engine and damage to the airplane. erowe on DSK5CLS3C1PROD with PROPOSALS-1 Compliance (e) You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done. 9527M99P10, 9527M99P11, 1285M39P01, or fan blade pairs, P/Ns 335–088–901–0, 335– 088–902–0, 335–088–903–0, and 335–088– 904–0, unless they have passed an inspection specified in paragraph 3. Accomplishment Instructions of CFM International SB CFM56–3/3B/3C S/B 72–1067, dated February 15, 2007. Optional Terminating Action (k) Replacing the 25 degrees midspan shroud fan blade set with a 37 degrees midspan shroud fan blade set terminates the repetitive inspection requirements specified in paragraph (h) of this AD. Alternative Methods of Compliance (l) The Manager, Engine Certification Office, has the authority to approve alternative methods of compliance for this AD if requested using the procedures found in 14 CFR 39.19. Related Information (m) Contact Stephen K. Sheely, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; e-mail: stephen.k.sheely@faa.gov; telephone (781) 238–7750; fax (781) 238– 7199, for more information about this AD. (n) CFM International SB CFM56–3/3B/3C S/B 72–1067, dated February 15, 2007, pertains to the subject of this AD. Contact CFM International, S. A., Technical Publication Department, 1 Neumann Way, Cincinnati, OH 45215; telephone (513) 552– 2800; fax (513) 552–2816, for a copy of this service information. (o) EASA airworthiness directive 2009– 0036, dated February 20, 2009, also addresses the subject of this AD. Issued in Burlington, Massachusetts, on July 16, 2009. Peter A. White, Assistant Manager, Engine and Propeller Directorate, Aircraft Certification Service. [FR Doc. E9–17473 Filed 7–22–09; 8:45 am] Inspection for Wear (f) Within 3,000 cycles-in-service after the effective date of this AD, perform an on-wing or in-shop inspection of the fan blade and damper for wear. Use paragraph 3. Accomplishment Instructions of CFM International Service Bulletin (SB) CFM56–3/ 3B/3C S/B 72–1067, dated February 15, 2007. (g) If you find wear, perform additional inspections as specified in paragraph 3. Accomplishment Instructions of CFM International SB CFM56–3/3B/3C S/B 72– 1067, dated February 15, 2007. (h) Thereafter, within intervals not to exceed 3,000 cycles-since-last inspection, perform an on-wing or in-shop inspection for wear. Use paragraph 3. Accomplishment Instructions of CFM International SB CFM56–3/3B/3C S/B 72–1067, dated February 15, 2007. (i) If you find wear, perform additional inspections as specified in paragraph 3. Accomplishment Instructions of CFM International SB CFM56–3/3B/3C S/B 72– 1067, dated February 15, 2007. AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). Installation Prohibition (j) After the effective date of this AD, don’t install any 25 degrees midspan shroud fan blades, P/Ns 9527M99P08, 9527M99P09, SUMMARY: We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD results from mandatory continuing VerDate Nov<24>2008 14:47 Jul 22, 2009 Jkt 217001 BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2009–0674; Directorate Identifier 2009–NE–25–AD] RIN 2120–AA64 Airworthiness Directives; Rolls-Royce plc RB211 Trent 800 Series Turbofan Engines PO 00000 Frm 00020 Fmt 4702 Sfmt 4702 airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as: Under certain ambient conditions, ice can accumulate on the walls of the fuel pipes within the aircraft fuel system, which can then be released downstream when fuel flow demand is increased. This released ice can then collect on the fuel-to-oil heat exchanger (FOHE) front face and limit fuel flow through the FOHE. We are proposing this AD to prevent ice from blocking the FOHE, which could result in an unacceptable engine power loss, and loss of control of the airplane. DATES: We must receive comments on this proposed AD by August 24, 2009. ADDRESSES: You may send comments by any of the following methods: • Federal eRulemaking Portal: Go to https://www.regulations.gov and follow the instructions for sending your comments electronically. • Mail: Docket Management Facility, U.S. Department of Transportation, 1200 New Jersey Avenue, SE., West Building Ground Floor, Room W12–140, Washington, DC 20590–0001. • Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. • Fax: (202) 493–2251. Contact Rolls-Royce plc, P.O. Box 31, DERBY, DE24 8BJ, UK; telephone 44 (0) 1332 242424; fax 44 (0) 1332 249936, for the service information identified in this proposed AD. Examining the AD Docket You may examine the AD docket on the Internet at https:// www.regulations.gov; or in person at the Docket Operations office between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this proposed AD, the regulatory evaluation, any comments received, and other information. The street address for the Docket Operations office (telephone (800) 647–5527) is the same as the Mail address provided in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: James Lawrence, Aerospace Engineer, Engine Certification Office, FAA, Engine and Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; e-mail: james.lawrence@faa.gov; telephone (781) 238–7176; fax (781) 238–7199. SUPPLEMENTARY INFORMATION: E:\FR\FM\23JYP1.SGM 23JYP1 Federal Register / Vol. 74, No. 140 / Thursday, July 23, 2009 / Proposed Rules Comments Invited We invite you to send any written relevant data, views, or arguments about this proposed AD. Send your comments to an address listed under the ADDRESSES section. Include ‘‘Docket No. FAA–2009–0674; Directorate Identifier 2009–NE–25–AD’’ at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this proposed AD. We will consider all comments received by the closing date and may amend this proposed AD based on those comments. We will post all comments we receive, without change, to https:// www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact with FAA personnel concerning this proposed AD. Using the search function of the Web site, anyone can find and read the comments in any of our dockets, including, if provided, the name of the individual who sent the comment (or signed the comment on behalf of an association, business, labor union, etc.). You may review the DOT’s complete Privacy Act Statement in the Federal Register published on April 11, 2000 (65 FR 19477–78). erowe on DSK5CLS3C1PROD with PROPOSALS-1 Discussion The European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Community, has issued EASA Airworthiness Directive 2009–0142, dated July 13, 2009 (referred to after this as ‘‘the MCAI’’), to correct an unsafe condition for the specified products. The MCAI states: This Airworthiness Directive has been raised following an incident involving dual loss of engine response in the final stages of approach leading to touchdown short of the runway. The phenomenon involved in the loss of engine response has also been seen in flight affecting just one engine. Post incident analysis and investigation has established that, under certain ambient conditions, ice can accumulate on the walls of the fuel pipes within the aircraft fuel system, which can then be released downstream when fuel flow demand is increased. This released ice can then collect on the FOHE front face and limit fuel flow through the FOHE. This type of icing event was previously unknown and creates ice concentrations in the fuel system beyond those specified in the certification requirements. To mitigate the risk of engine FOHE blockage, this AD would require replacing the FOHE, part number (P/N) 55003001–1 or 55003001–11, with a FOHE that has a P/N, or equivalent, not listed in this proposed AD. VerDate Nov<24>2008 14:47 Jul 22, 2009 Jkt 217001 You may obtain further information by examining the MCAI in the AD docket. Relevant Service Information Rolls-Royce plc has issued Alert Service Bulletin RB.211–79–AG257, dated June 24, 2009. The actions described in this service information are intended to correct the unsafe condition identified in the MCAI. FAA’s Determination and Requirements of This Proposed AD This product has been approved by the aviation authority of the United Kingdom, and is approved for operation in the United States. Pursuant to our bilateral agreement with the United Kingdom, they have notified us of the unsafe condition described in the MCAI and service information referenced above. We are proposing this AD because we evaluated all information provided by EASA, and determined the unsafe condition exists and is likely to exist or develop on other products of the same type design. Differences Between This AD and the MCAI or Service Information The EASA AD 2009–01421, dated July 13, 2009, requires replacing the FOHE within 6,000 flight hours from July 10, 2009 or before January 1, 2011, whichever occurs first. This proposed AD would require replacing the FOHE within 6,000 flight hours after the effective date of the proposed AD, but no later than January 1, 2011. Costs of Compliance Based on the service information, we estimate that this proposed AD would affect about 138 products of U.S. registry. We also estimate that it would take about 8.5 work-hours per product to comply with this proposed AD. The average labor rate is $80 per work-hour. Required parts would cost about $11,260 per product. Based on these figures, we estimate the cost of the proposed AD on U.S. operators to be $1,647,720. Our cost estimate is exclusive of possible warranty coverage. 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 PO 00000 Frm 00021 Fmt 4702 Sfmt 4702 36423 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 proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would 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 proposed regulation: 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); 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. We prepared a regulatory evaluation of the estimated costs to comply with this proposed AD and placed it in the AD docket. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Safety. The Proposed Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 14 CFR part 39 as follows: PART 39—AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new AD: Rolls-Royce plc: Docket No. FAA–2009– 0674; Directorate Identifier 2009–NE– 25–AD. Comments Due Date (a) We must receive comments by August 24, 2009. Affected Airworthiness Directives (ADs) (b) None. E:\FR\FM\23JYP1.SGM 23JYP1 36424 Federal Register / Vol. 74, No. 140 / Thursday, July 23, 2009 / Proposed Rules Applicability DEPARTMENT OF JUSTICE (c) This AD applies to Rolls-Royce plc models RB211 Trent 875–17, –877–17, –884– 17, –884B–17, –892–17, –892B–17, and –895–17 turbofan engines with fuel-to-oil heat exchangers, part numbers 55003001–1 and 55003001–11, installed. These engines are installed on, but not limited to, Boeing 777 series airplanes. Reason (d) This AD results from the risk of engine fuel-to-oil heat exchanger (FOHE) blockage. We are issuing this AD to prevent ice from blocking the FOHE, which could result in an unacceptable engine power loss, and loss of control of the airplane. Actions and Compliance (e) Unless already done, within 6,000 flight hours after the effective date of this AD, but no later than January 1, 2011, replace the FOHE, P/N 55003001–1 or 55003001–11, with an FOHE that does not have a P/N or equivalent listed in this AD. FAA AD Differences (f) This AD differs from the Mandatory Continuing Airworthiness Information (MCAI) by requiring replacing the FOHE within 6,000 flight hours after the effective date of this AD, but no later than January 1, 2011. Other FAA AD Provisions (g) Alternative Methods of Compliance (AMOCs): The Manager, Engine Certification Office, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Related Information erowe on DSK5CLS3C1PROD with PROPOSALS-1 (h) Refer to MCAI Airworthiness Directive 2009–0142, dated July 13, 2009, and RollsRoyce plc Alert Service Bulletin RB.211–79– AG257, dated June 24, 2009, for related information. Contact Rolls-Royce plc, P.O. Box 31, DERBY, DE24 8BJ, UK; telephone 44 (0) 1332 242424; fax 44 (0) 1332 249936, for a copy of this service information. (i) Contact James Lawrence, Aerospace Engineer, Engine Certification Office, FAA, Engine and Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; e-mail: james.lawrence@faa.gov; telephone (781) 238–7176; fax (781) 238– 7199, for more information about this AD. Issued in Burlington, Massachusetts, on July 17, 2009. Peter A. White, Assistant Manager, Engine and Propeller Directorate, Aircraft Certification Service. [FR Doc. E9–17470 Filed 7–22–09; 8:45 am] BILLING CODE 4910–13–P VerDate Nov<24>2008 14:47 Jul 22, 2009 Jkt 217001 Drug Enforcement Administration 21 CFR Part 1308 [Docket No. DEA–327] Schedules of Controlled Substances: Placement of Fospropofol Into Schedule IV AGENCY: Drug Enforcement Administration, Justice. ACTION: Notice of proposed rulemaking. SUMMARY: This proposed rule is issued by the Deputy Administrator of the Drug Enforcement Administration (DEA) to place the substance fospropofol, including its salts, isomers and salts of isomers whenever the existence of such salts, isomers, and salts of isomers is possible, into schedule IV of the Controlled Substances Act (CSA). This proposed action is based on a recommendation from the Acting Assistant Secretary for Health of the Department of Health and Human Services (DHHS) and on an evaluation of the relevant data by DEA. If finalized, this action would impose the regulatory controls and criminal sanctions of schedule IV on those who handle fospropofol and products containing fospropofol. DATES: Written comments must be postmarked on or before August 24, 2009, and electronic comments must be sent on or before midnight Eastern time August 24, 2009. ADDRESSES: To ensure proper handling of comments, please reference ‘‘Docket No. DEA–327’’ on all written and electronic correspondence. Written comments sent via regular or express mail should be sent to the Drug Enforcement Administration, Attention: DEA Federal Register Representative/ ODL, 8701 Morrissette Drive, Springfield, Virginia 22152. Comments may be sent to DEA by sending an electronic message to dea.diversion.policy@usdoj.gov. Comments may also be sent electronically through https:// www.regulations.gov using the electronic comment form provided on that site. An electronic copy of this document is also available at the https://www.regulations.gov Web site. DEA will accept electronic comments containing Microsoft Word, WordPerfect, Adobe PDF, or Excel file formats only. DEA will not accept any file format other than those specifically listed here. Please note that DEA is requesting that electronic comments be submitted PO 00000 Frm 00022 Fmt 4702 Sfmt 4702 before midnight Eastern Time on the day the comment period closes because https://www.regulations.gov terminates the public’s ability to submit comments at midnight Eastern time on the day the comment period closes. Commenters in time zones other than Eastern time may want to consider this so that their electronic comments are received. All comments sent via regular or express mail will be considered timely if postmarked on the day the comment period closes. FOR FURTHER INFORMATION CONTACT: Christine A. Sannerud, Ph.D., Chief, Drug and Chemical Evaluation Section, Office of Diversion Control, Drug Enforcement Administration, 8701 Morrissette Drive, Springfield, Virginia 22152, Telephone: (202) 307–7183. SUPPLEMENTARY INFORMATION: Posting of Public Comments: Please note that all comments received are considered part of the public record and made available for public inspection online at https://www.regulations.gov and in the DEA’s public docket. Such information includes personal identifying information (such as your name, address, etc.) voluntarily submitted by the commenter. If you want to submit personal identifying information (such as your name, address, etc.) as part of your comment, but do not want it to be posted online or made available in the public docket, you must include the phrase ‘‘PERSONAL IDENTIFYING INFORMATION’’ in the first paragraph of your comment. You must also place all the personal identifying information you do not want posted online or made available in the public docket in the first paragraph of your comment and identify what information you want redacted. If you want to submit confidential business information as part of your comment, but do not want it to be posted online or made available in the public docket, you must include the phrase ‘‘CONFIDENTIAL BUSINESS INFORMATION’’ in the first paragraph of your comment. You must also prominently identify confidential business information to be redacted within the comment. If a comment has so much confidential business information that it cannot be effectively redacted, all or part of that comment may not be posted online or made available in the public docket. Personal identifying information and confidential business information identified and located as set forth above will be redacted and the comment, in redacted form, will be posted online and placed in the DEA’s public docket file. Please note that the Freedom of E:\FR\FM\23JYP1.SGM 23JYP1

Agencies

[Federal Register Volume 74, Number 140 (Thursday, July 23, 2009)]
[Proposed Rules]
[Pages 36422-36424]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E9-17470]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2009-0674; Directorate Identifier 2009-NE-25-AD]
RIN 2120-AA64


Airworthiness Directives; Rolls-Royce plc RB211 Trent 800 Series 
Turbofan Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

-----------------------------------------------------------------------

SUMMARY: We propose to adopt a new airworthiness directive (AD) for the 
products listed above. This proposed AD results from mandatory 
continuing airworthiness information (MCAI) issued by an aviation 
authority of another country to identify and correct an unsafe 
condition on an aviation product. The MCAI describes the unsafe 
condition as: Under certain ambient conditions, ice can accumulate on 
the walls of the fuel pipes within the aircraft fuel system, which can 
then be released downstream when fuel flow demand is increased. This 
released ice can then collect on the fuel-to-oil heat exchanger (FOHE) 
front face and limit fuel flow through the FOHE.
    We are proposing this AD to prevent ice from blocking the FOHE, 
which could result in an unacceptable engine power loss, and loss of 
control of the airplane.

DATES: We must receive comments on this proposed AD by August 24, 2009.

ADDRESSES: You may send comments by any of the following methods:
     Federal eRulemaking Portal: Go to https://www.regulations.gov and follow the instructions for sending your 
comments electronically.
     Mail: Docket Management Facility, U.S. Department of 
Transportation, 1200 New Jersey Avenue, SE., West Building Ground 
Floor, Room W12-140, Washington, DC 20590-0001.
     Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
     Fax: (202) 493-2251.
    Contact Rolls-Royce plc, P.O. Box 31, DERBY, DE24 8BJ, UK; 
telephone 44 (0) 1332 242424; fax 44 (0) 1332 249936, for the service 
information identified in this proposed AD.

Examining the AD Docket

    You may examine the AD docket on the Internet at https://www.regulations.gov; or in person at the Docket Operations office 
between 9 a.m. and 5 p.m., Monday through Friday, except Federal 
holidays. The AD docket contains this proposed AD, the regulatory 
evaluation, any comments received, and other information. The street 
address for the Docket Operations office (telephone (800) 647-5527) is 
the same as the Mail address provided in the ADDRESSES section. 
Comments will be available in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: James Lawrence, Aerospace Engineer, 
Engine Certification Office, FAA, Engine and Propeller Directorate, 12 
New England Executive Park, Burlington, MA 01803; e-mail: 
james.lawrence@faa.gov; telephone (781) 238-7176; fax (781) 238-7199.

SUPPLEMENTARY INFORMATION:

[[Page 36423]]

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposed AD. Send your comments to an address 
listed under the ADDRESSES section. Include ``Docket No. FAA-2009-0674; 
Directorate Identifier 2009-NE-25-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of this proposed AD. We 
will consider all comments received by the closing date and may amend 
this proposed AD based on those comments.
    We will post all comments we receive, without change, to https://www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact 
with FAA personnel concerning this proposed AD. Using the search 
function of the Web site, anyone can find and read the comments in any 
of our dockets, including, if provided, the name of the individual who 
sent the comment (or signed the comment on behalf of an association, 
business, labor union, etc.). You may review the DOT's complete Privacy 
Act Statement in the Federal Register published on April 11, 2000 (65 
FR 19477-78).

Discussion

    The European Aviation Safety Agency (EASA), which is the Technical 
Agent for the Member States of the European Community, has issued EASA 
Airworthiness Directive 2009-0142, dated July 13, 2009 (referred to 
after this as ``the MCAI''), to correct an unsafe condition for the 
specified products. The MCAI states:

    This Airworthiness Directive has been raised following an 
incident involving dual loss of engine response in the final stages 
of approach leading to touchdown short of the runway. The phenomenon 
involved in the loss of engine response has also been seen in flight 
affecting just one engine.
    Post incident analysis and investigation has established that, 
under certain ambient conditions, ice can accumulate on the walls of 
the fuel pipes within the aircraft fuel system, which can then be 
released downstream when fuel flow demand is increased. This 
released ice can then collect on the FOHE front face and limit fuel 
flow through the FOHE. This type of icing event was previously 
unknown and creates ice concentrations in the fuel system beyond 
those specified in the certification requirements.

    To mitigate the risk of engine FOHE blockage, this AD would require 
replacing the FOHE, part number (P/N) 55003001-1 or 55003001-11, with a 
FOHE that has a P/N, or equivalent, not listed in this proposed AD.
    You may obtain further information by examining the MCAI in the AD 
docket.

Relevant Service Information

    Rolls-Royce plc has issued Alert Service Bulletin RB.211-79-AG257, 
dated June 24, 2009. The actions described in this service information 
are intended to correct the unsafe condition identified in the MCAI.

FAA's Determination and Requirements of This Proposed AD

    This product has been approved by the aviation authority of the 
United Kingdom, and is approved for operation in the United States. 
Pursuant to our bilateral agreement with the United Kingdom, they have 
notified us of the unsafe condition described in the MCAI and service 
information referenced above. We are proposing this AD because we 
evaluated all information provided by EASA, and determined the unsafe 
condition exists and is likely to exist or develop on other products of 
the same type design.

Differences Between This AD and the MCAI or Service Information

    The EASA AD 2009-01421, dated July 13, 2009, requires replacing the 
FOHE within 6,000 flight hours from July 10, 2009 or before January 1, 
2011, whichever occurs first. This proposed AD would require replacing 
the FOHE within 6,000 flight hours after the effective date of the 
proposed AD, but no later than January 1, 2011.

Costs of Compliance

    Based on the service information, we estimate that this proposed AD 
would affect about 138 products of U.S. registry. We also estimate that 
it would take about 8.5 work-hours per product to comply with this 
proposed AD. The average labor rate is $80 per work-hour. Required 
parts would cost about $11,260 per product. Based on these figures, we 
estimate the cost of the proposed AD on U.S. operators to be 
$1,647,720. Our cost estimate is exclusive of possible warranty 
coverage.

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 proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would 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 proposed 
regulation:
    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); 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.
    We prepared a regulatory evaluation of the estimated costs to 
comply with this proposed AD and placed it in the AD docket.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Safety.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

    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]

    2. The FAA amends Sec.  39.13 by adding the following new AD:

Rolls-Royce plc: Docket No. FAA-2009-0674; Directorate Identifier 
2009-NE-25-AD.

Comments Due Date

    (a) We must receive comments by August 24, 2009.

Affected Airworthiness Directives (ADs)

    (b) None.

[[Page 36424]]

Applicability

    (c) This AD applies to Rolls-Royce plc models RB211 Trent 875-
17, -877-17, -884-17, -884B-17, -892-17, -892B-17, and -895-17 
turbofan engines with fuel-to-oil heat exchangers, part numbers 
55003001-1 and 55003001-11, installed. These engines are installed 
on, but not limited to, Boeing 777 series airplanes.

Reason

    (d) This AD results from the risk of engine fuel-to-oil heat 
exchanger (FOHE) blockage. We are issuing this AD to prevent ice 
from blocking the FOHE, which could result in an unacceptable engine 
power loss, and loss of control of the airplane.

Actions and Compliance

    (e) Unless already done, within 6,000 flight hours after the 
effective date of this AD, but no later than January 1, 2011, 
replace the FOHE, P/N 55003001-1 or 55003001-11, with an FOHE that 
does not have a P/N or equivalent listed in this AD.

FAA AD Differences

    (f) This AD differs from the Mandatory Continuing Airworthiness 
Information (MCAI) by requiring replacing the FOHE within 6,000 
flight hours after the effective date of this AD, but no later than 
January 1, 2011.

Other FAA AD Provisions

    (g) Alternative Methods of Compliance (AMOCs): The Manager, 
Engine Certification Office, FAA, has the authority to approve AMOCs 
for this AD, if requested using the procedures found in 14 CFR 
39.19.

Related Information

    (h) Refer to MCAI Airworthiness Directive 2009-0142, dated July 
13, 2009, and Rolls-Royce plc Alert Service Bulletin RB.211-79-
AG257, dated June 24, 2009, for related information. Contact Rolls-
Royce plc, P.O. Box 31, DERBY, DE24 8BJ, UK; telephone 44 (0) 1332 
242424; fax 44 (0) 1332 249936, for a copy of this service 
information.
    (i) Contact James Lawrence, Aerospace Engineer, Engine 
Certification Office, FAA, Engine and Propeller Directorate, 12 New 
England Executive Park, Burlington, MA 01803; e-mail: 
james.lawrence@faa.gov; telephone (781) 238-7176; fax (781) 238-
7199, for more information about this AD.

    Issued in Burlington, Massachusetts, on July 17, 2009.
Peter A. White,
Assistant Manager, Engine and Propeller Directorate, Aircraft 
Certification Service.
[FR Doc. E9-17470 Filed 7-22-09; 8:45 am]
BILLING CODE 4910-13-P
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