Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG (RRD) Dart 528, 529, 532, 535, 542, and 552 Series Turboprop Engines, 44630-44632 [E8-17423]

Download as PDF 44630 Federal Register / Vol. 73, No. 148 / Thursday, July 31, 2008 / Rules and Regulations 660 flight hours time-in-service after the effective date of this AD, unless the actions have already been done. Removal of CF34–8E FADEC Software Version 8Ev5.40 Installation Prohibition (g) After the effective date of this AD, don’t install any FADEC, P/N 4120T00P47, 4120T00P48, 111E9320G48, or 111E9320G49, onto any CF34–8E engine. Alternative Methods of Compliance (h) 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 (i) General Electric Alert Service Bulletin CF34–8E–AL S/B 73–A0019, dated June 17, 2008, contains information on removing software version 8Ev5.40 and installing an FAA-approved FADEC software version. (j) Contact Kenneth Steeves, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; e-mail: kenneth.steeves@faa.gov; telephone (781) 238–7765; fax (781) 238– 7199, for more information about this AD. Material Incorporated by Reference (k) None. Issued in Burlington, Massachusetts, on July 23, 2008. Carlos Pestana, Acting Manager, Engine and Propeller Directorate, Aircraft Certification Service. [FR Doc. E8–17422 Filed 7–30–08; 8:45 am] yshivers on PROD1PC62 with RULES VerDate Aug<31>2005 15:05 Jul 30, 2008 Jkt 214001 Federal Aviation Administration 14 CFR Part 39 (f) For CF34–8E engines with a FADEC, P/ N 4120T00P47, 4120T00P48, 111E9320G48, or 111E9320G49, installed, do either of the following: (1) Replace the FADEC, P/N 4120T00P47, 4120T00P48, 111E9320G48, or 111E9320G49, with a FADEC P/N not listed in paragraph (c) of this AD. Or, (2) For CF34–8E engines with a FADEC, P/ N 4120T00P47, 4120T00P48, 111E9320G48, or 111E9320G49, installed, reprogram the FADEC software to an FAA approved version. BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION [Docket No. FAA–2006–24825; Directorate Identifier 2006–NE–17–AD; Amendment 39– 15623; AD 2008–16–05] RIN 2120–AA64 Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG (RRD) Dart 528, 529, 532, 535, 542, and 552 Series Turboprop Engines Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule. AGENCY: SUMMARY: The FAA is superseding an existing airworthiness directive (AD) for RRD Dart 528, 529, 532, 535, 542, and 552 Series turboprop engines. That AD currently requires a dimensional inspection of the intermediate pressure turbine (IPT) disk or an ultrasonic inspection of the seal arm contact between the high pressure turbine (HPT) and the IPT disk seal arm and reworking or replacing the IPT disk if worn beyond acceptable limits. This AD continues to require those actions. This AD results from us including an incorrect engine model and omitting an engine model from the applicability of the existing AD. We are issuing this AD to prevent HPT disk failure, which can result in an uncontained engine failure and damage to the airplane. DATES: This AD becomes effective September 4, 2008. The Director of the Federal Register previously approved the incorporation by reference of certain publications listed in the regulations on February 26, 2007 (72 FR 2610, January 22, 2007). ADDRESSES: You can get the service information identified in this AD from Rolls-Royce Deutschland Ltd & Co KG, Eschenweg 11, D–15827 Dahlewitz, Germany; telephone 49 (0) 33–7086– 1768; fax 49 (0) 33–7086–3356. The Docket Operations office is located at Docket Management Facility, U.S. Department of Transportation, 1200 New Jersey Avenue, SE., West Building Ground Floor, Room W12–140, Washington, DC 20590–0001. FOR FURTHER INFORMATION CONTACT: Jason Yang, Aerospace Engineer, Engine Certification Office, FAA, Engine and Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; telephone (781) 238–7747; fax (781) 238–7199. SUPPLEMENTARY INFORMATION: The FAA proposed to amend 14 CFR part 39 by PO 00000 Frm 00016 Fmt 4700 Sfmt 4700 superseding AD 2007–02–07, Amendment 39–14894 (72 FR 2610, January 22, 2007), with a proposed AD. The proposed AD applies to RRD Dart 528, 529, 532, 535, 542, and 552 Series turboprop engines. We published the proposed AD in the Federal Register on November 9, 2007 (72 FR 63508). That action proposed to require deleting the Dart 555 series engines from the applicability paragraph of the proposed AD, and to list the Dart 552 series turboprop engines in the applicability paragraph of the proposed AD. Examining the AD Docket You may examine the AD docket on the Internet at http:// 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 AD, the regulatory evaluation, any comments received, and other information. The street address for the Docket Operations office (telephone (800) 647–5527) is provided in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. Comments We provided the public the opportunity to participate in the development of this AD. We have considered the comments received. Request To Correct a Typographical Error in the Costs of Compliance Section One commenter asks us to change ‘‘turbofan engines’’ in the Costs of Compliance Section to ‘‘turboprop engines.’’ The commenter states that the Dart engine is a turboprop engine, not a ‘‘turbofan engines.’’ We agree. We changed ‘‘turbofan engines’’ in the Costs to Comply section to ‘‘turboprop engines.’’ Request To Add Airplane Models to the Applicability Paragraph The same commenter states that paragraph (c) Applicability, appears to omit some models of airplanes that might use the engines. The commenter states that the Dart engine is installed by supplemental type certificate on certain General Dynamics Convair model airplanes, and that those airplanes can still be found in the FAA’s registry database. We partially agree. We must identify in paragraph (c) Applicability, all engine models that are affected by this AD. We list the aircraft models that might use those engines to help readers to determine if they might have an affected engine. However, for clarity, we E:\FR\FM\31JYR1.SGM 31JYR1 Federal Register / Vol. 73, No. 148 / Thursday, July 31, 2008 / Rules and Regulations have changed the applicability paragraph to include the General Dynamics Convair models that might use these engines under supplemental type certificates. Change of Compliance End Dates We changed the compliance end dates in paragraphs (f)(2)(i) from June 30, 2007, to June 30, 2008, and paragraph (f)(2)(ii) from April 30, 2008, to July 31, 2008. We changed the compliance dates to avoid unnecessary grounding of aircraft while still meeting our safety concerns. Conclusion We have carefully reviewed the available data, including the comments received, and determined that air safety and the public interest require adopting the AD with the changes described previously. We have determined that these changes will neither increase the economic burden on any operator nor increase the scope of the AD. Costs of Compliance We estimate that this AD will affect 30 RRD Dart 528, 529, 532, 535, 542, and 552 series turboprop engines installed on airplanes of U.S. registry. We also estimate that it will take about 50 work-hours per engine to perform the proposed actions, and that the average labor rate is $80 per work-hour. Required parts will cost about $50,000 per IPT disk. We estimate that 25 percent, or eight engines, will require IPT disk replacement. Based on these figures, we estimate the total cost of the AD to U.S. operators to be $500,000. yshivers on PROD1PC62 with RULES Authority for This Rulemaking 15:05 Jul 30, 2008 Jkt 214001 We have 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 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); 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 summary of the costs to comply with this AD and placed it in the AD Docket. You may get a copy of this summary at the address listed under ADDRESSES. 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 Federal Aviation Administration amends 14 CFR part 39 as follows: I PART 39—AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: I Authority: 49 U.S.C. 106(g), 40113, 44701. 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. VerDate Aug<31>2005 Regulatory Findings § 39.13 [Amended] 2. The FAA amends § 39.13 by removing Amendment 39–14894 (72 FR 2610, January 22, 2007), and by adding a new airworthiness directive, Amendment 39–15623, to read as follows: I 2008–16–05 Rolls-Royce Deutschland Ltd & Co KG (formerly Rolls-Royce plc): Amendment 39–15623. Docket No. FAA–2006–24825; Directorate Identifier 2006–NE–17–AD. 44631 not limited to, Hawker Siddeley, Argosy AW.650, Fairchild Hiller F–27, F–27A, F– 27B, F–27F, F–27G, F–27J, FH–227, FH– 227B, FH–227C, FH–227D, FH–227E, Fokker F.27 all marks; British Aircraft Corporation Viscount 744, 745D and 810; Gulfstream G– 159, General Dynamics Convair 240D or 600, or 600–240D, and 340D or 440D, or 640– 340D and 640–440D airplanes. Unsafe Condition (d) This AD results from us including an incorrect engine model and omitting an engine model from the applicability of the existing AD. We are issuing this AD to prevent HPT disk failure, which can result in an uncontained engine failure and damage to the airplane. 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. Intermediate Pressure Turbine (IPT) Disk and High Pressure Turbine (HPT)/IPT Disk Seal Arm Inspections (f) Within 60 days after the effective date of the AD, do either of the following: (1) Perform a dimensional inspection of the IPT disk and repair or replace the IPT disk, if necessary using paragraph 3 of the Accomplishment Instructions of RRD service bulletin (SB) Da72–538, dated June 10, 2005; or (2) Perform an ultrasonic inspection of the disk seal arm contact between the HPT and the IPT using paragraph 3 of the Accomplishment Instructions of RRD SB Da72–536, Revision 1, dated August 25, 2003. (i) For RRD Dart 528, 529, 532, 535, 542 series turboprop engines if wear is outside allowable limits, before June 30, 2008, perform a dimensional inspection and repair or replace the IPT disk, if necessary. Use paragraph 3 of the Accomplishment Instructions of RRD SB Da72–538, dated June 10, 2005. (ii) For RRD Dart 552 series turboprop engines if wear is outside allowable limits, before July 31, 2008, perform a dimensional inspection and repair or replace the IPT disk, if necessary. Use paragraph 3 of the Accomplishment Instructions of RRD SB Da72–538, dated June 10, 2005. (iii) If wear is within allowable limits, perform a dimensional inspection of the IPT disk at the next engine shop visit or at next overhaul, whichever occurs first and repair or replace the IPT disk, if necessary. Use paragraph 3 of the Accomplishment Instructions of RRD SB Da72–538, dated June 10, 2005. Effective Date (a) This airworthiness directive (AD) becomes effective September 4, 2008. (b) This AD supersedes AD 2007–02–17, Amendment 39–14894. Applicability (c) This AD applies to Rolls-Royce Deutschland Ltd & Co KG (RRD) Dart 528, 529, 532, 535, 542, and 552 series turboprop engines. These engines are installed on, but Alternative Methods of Compliance (g) 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 (h) LBA airworthiness directive D–2005– 197, dated June 30, 2005, also addresses the subject of this AD. PO 00000 Frm 00017 Fmt 4700 Sfmt 4700 E:\FR\FM\31JYR1.SGM 31JYR1 44632 Federal Register / Vol. 73, No. 148 / Thursday, July 31, 2008 / Rules and Regulations (i) Contact Jason Yang, Aerospace Engineer, Engine Certification Office, FAA, Engine and Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; telephone (781) 238–7747, fax (781) 238–7199; e-mail: jason.yang@faa.gov, for more information about this AD. Material Incorporated by Reference (j) You must use the Rolls-Royce Deutschland Ltd & Co KG service information specified in Table 1 to perform the actions required by this AD. The Director of the Federal Register previously approved the incorporation by reference of the service information specified in Table 1 on February 26, 2007 (72 FR 2610, January 22, 2007). Contact Rolls-Royce Deutschland Ltd & Co KG, Eschenweg 11, D–15827 Dahlewitz, Germany; telephone 49 (0) 33–7086–1768; fax 49 (0) 33–7086–3356 for a copy of this service information. You may review copies at the FAA, New England Region, 12 New England Executive Park, Burlington, MA; or 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/ibrlocations.html. TABLE 1—INCORPORATION BY REFERENCE Service Bulletin No. Page Revision Da72–536: Total Pages: 23 .................................. Da72–538: Total Pages: 21 .................................. All ............................................... All ............................................... 1 ................................................. Original ....................................... Issued in Burlington, Massachusetts, on July 24, 2008. Carlos Pestana, Acting Manager, Engine and Propeller Directorate, Aircraft Certification Service. [FR Doc. E8–17423 Filed 7–30–08; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF THE TREASURY Internal Revenue Service 26 CFR Part 1 [TD 9419] RIN 1545–BG30 Mortality Tables for Determining Present Value Internal Revenue Service (IRS), Treasury. ACTION: Final regulations. AGENCY: SUMMARY: This document contains final regulations providing guidance regarding the mortality tables to be used in determining present value or making any computation for purposes of applying certain pension funding requirements. These regulations affect sponsors, administrators, participants, and beneficiaries of certain retirement plans. Effective date: These regulations are effective July 31, 2008. Applicability date: Section 1.430(h)(3)–1, which provides generally applicable mortality tables for single employer defined benefit pension plans, and § 1.431(c)(6)–1, which provides for the use of those mortality tables for multiemployer defined benefit pension plans, apply to plan years beginning on or after January 1, 2008. Section 1.430(h)(3)–2, which provides rules regarding the approval and use of substitute mortality tables for single employer defined benefit pension plans, yshivers on PROD1PC62 with RULES DATES: VerDate Aug<31>2005 15:05 Jul 30, 2008 Jkt 214001 applies to plan years beginning on or after January 1, 2009. FOR FURTHER INFORMATION CONTACT: Lauson C. Green or Linda S.F. Marshall at (202) 622–6090 (not a toll-free number). SUPPLEMENTARY INFORMATION: Background Section 412 provides minimum funding requirements for defined benefit pension plans. The Pension Protection Act of 2006 (PPA), Public Law 109–280 (120 Stat. 780), makes extensive changes to those minimum funding requirements that generally apply for plan years beginning on or after January 1, 2008. Section 430, which was added by PPA, specifies the minimum funding requirements that apply to defined benefit plans that are not multiemployer plans.1 Section 430(a) defines the minimum required contribution for a defined benefit plan that is not a multiemployer plan by reference to the plan’s funding target for the plan year. Under section 430(d)(1), a plan’s funding target for a plan year generally is the present value of all benefits accrued or earned under the plan as of the beginning of the plan year. Section 430(h)(3) provides rules regarding the mortality tables to be used under section 430. Under section 430(h)(3)(A), except as provided in 1 Section 302 of the Employee Retirement Income Security Act of 1974, as amended (ERISA) sets forth funding rules that are parallel to those in section 412 of the Internal Revenue Code (Code), and section 303 of ERISA sets forth additional funding rules for defined benefit plans (other than multiemployer plans) that are parallel to those in section 430 of the Code. Under section 101 of Reorganization Plan No. 4 of 1978 (43 FR 47713) and section 302 of ERISA, the Secretary of the Treasury has interpretive jurisdiction over the subject matter addressed in these regulations for purposes of ERISA, as well as the Code. Thus, these Treasury regulations issued under section 430 of the Code apply as well for purposes of section 303 of ERISA. PO 00000 Frm 00018 Fmt 4700 Sfmt 4700 Date August 25, 2003. June 10, 2005. section 430(h)(3)(C) or (D), the Secretary is to prescribe by regulation mortality tables to be used in determining any present value or making any computation under section 430. Those tables are to be based on the actual experience of pension plans and projected trends in such experience. In prescribing those tables, the Secretary is required to take into account results of available independent studies of mortality of individuals covered by pension plans. This standard for issuing the mortality table under section 430(h)(3)(A) is the same as the standard for issuing updated mortality tables pursuant to the review under section 412(l)(7)(C)(ii)(III) of the mortality table used in determining a plan’s current liability pursuant to section 412(l)(7)(C)(ii)(I) for plan years before the effective date of the PPA changes. Section 430(h)(3)(C) provides rules for a plan sponsor’s use of substitute mortality tables. Upon the request of a plan sponsor and approval by the Secretary, mortality tables that meet the requirements for substitute mortality tables are used in determining present value or making any computation under section 430 during the period of consecutive plan years (not to exceed 10) specified in the request. Substitute mortality tables cease to be in effect as of the earliest of the date on which there is a significant change in the participants in the plan by reason of a plan spinoff or merger or otherwise, or the date on which the plan actuary determines that those tables do not meet the requirements for substitute mortality tables. The plan sponsor’s request to use substitute mortality tables is to be made at least 7 months before the first day of the first plan year for which substitute mortality tables are to apply. A request to use substitute mortality tables is deemed approved unless the Secretary denies approval for the use of those mortality tables within 180 days of the E:\FR\FM\31JYR1.SGM 31JYR1

Agencies

[Federal Register Volume 73, Number 148 (Thursday, July 31, 2008)]
[Rules and Regulations]
[Pages 44630-44632]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E8-17423]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2006-24825; Directorate Identifier 2006-NE-17-AD; 
Amendment 39-15623; AD 2008-16-05]
RIN 2120-AA64


Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG 
(RRD) Dart 528, 529, 532, 535, 542, and 552 Series Turboprop Engines

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Final rule.

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

SUMMARY: The FAA is superseding an existing airworthiness directive 
(AD) for RRD Dart 528, 529, 532, 535, 542, and 552 Series turboprop 
engines. That AD currently requires a dimensional inspection of the 
intermediate pressure turbine (IPT) disk or an ultrasonic inspection of 
the seal arm contact between the high pressure turbine (HPT) and the 
IPT disk seal arm and reworking or replacing the IPT disk if worn 
beyond acceptable limits. This AD continues to require those actions. 
This AD results from us including an incorrect engine model and 
omitting an engine model from the applicability of the existing AD. We 
are issuing this AD to prevent HPT disk failure, which can result in an 
uncontained engine failure and damage to the airplane.

DATES: This AD becomes effective September 4, 2008. The Director of the 
Federal Register previously approved the incorporation by reference of 
certain publications listed in the regulations on February 26, 2007 (72 
FR 2610, January 22, 2007).

ADDRESSES: You can get the service information identified in this AD 
from Rolls-Royce Deutschland Ltd & Co KG, Eschenweg 11, D-15827 
Dahlewitz, Germany; telephone 49 (0) 33-7086-1768; fax 49 (0) 33-7086-
3356.
    The Docket Operations office is located at Docket Management 
Facility, U.S. Department of Transportation, 1200 New Jersey Avenue, 
SE., West Building Ground Floor, Room W12-140, Washington, DC 20590-
0001.

FOR FURTHER INFORMATION CONTACT: Jason Yang, Aerospace Engineer, Engine 
Certification Office, FAA, Engine and Propeller Directorate, 12 New 
England Executive Park, Burlington, MA 01803; telephone (781) 238-7747; 
fax (781) 238-7199.

SUPPLEMENTARY INFORMATION: The FAA proposed to amend 14 CFR part 39 by 
superseding AD 2007-02-07, Amendment 39-14894 (72 FR 2610, January 22, 
2007), with a proposed AD. The proposed AD applies to RRD Dart 528, 
529, 532, 535, 542, and 552 Series turboprop engines. We published the 
proposed AD in the Federal Register on November 9, 2007 (72 FR 63508). 
That action proposed to require deleting the Dart 555 series engines 
from the applicability paragraph of the proposed AD, and to list the 
Dart 552 series turboprop engines in the applicability paragraph of the 
proposed AD.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://
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 AD, the regulatory evaluation, 
any comments received, and other information. The street address for 
the Docket Operations office (telephone (800) 647-5527) is provided in 
the ADDRESSES section. Comments will be available in the AD docket 
shortly after receipt.

Comments

    We provided the public the opportunity to participate in the 
development of this AD. We have considered the comments received.

Request To Correct a Typographical Error in the Costs of Compliance 
Section

    One commenter asks us to change ``turbofan engines'' in the Costs 
of Compliance Section to ``turboprop engines.'' The commenter states 
that the Dart engine is a turboprop engine, not a ``turbofan engines.''
    We agree. We changed ``turbofan engines'' in the Costs to Comply 
section to ``turboprop engines.''

Request To Add Airplane Models to the Applicability Paragraph

    The same commenter states that paragraph (c) Applicability, appears 
to omit some models of airplanes that might use the engines. The 
commenter states that the Dart engine is installed by supplemental type 
certificate on certain General Dynamics Convair model airplanes, and 
that those airplanes can still be found in the FAA's registry database.
    We partially agree. We must identify in paragraph (c) 
Applicability, all engine models that are affected by this AD. We list 
the aircraft models that might use those engines to help readers to 
determine if they might have an affected engine. However, for clarity, 
we

[[Page 44631]]

have changed the applicability paragraph to include the General 
Dynamics Convair models that might use these engines under supplemental 
type certificates.

Change of Compliance End Dates

    We changed the compliance end dates in paragraphs (f)(2)(i) from 
June 30, 2007, to June 30, 2008, and paragraph (f)(2)(ii) from April 
30, 2008, to July 31, 2008. We changed the compliance dates to avoid 
unnecessary grounding of aircraft while still meeting our safety 
concerns.

Conclusion

    We have carefully reviewed the available data, including the 
comments received, and determined that air safety and the public 
interest require adopting the AD with the changes described previously. 
We have determined that these changes will neither increase the 
economic burden on any operator nor increase the scope of the AD.

Costs of Compliance

    We estimate that this AD will affect 30 RRD Dart 528, 529, 532, 
535, 542, and 552 series turboprop engines installed on airplanes of 
U.S. registry. We also estimate that it will take about 50 work-hours 
per engine to perform the proposed actions, and that the average labor 
rate is $80 per work-hour. Required parts will cost about $50,000 per 
IPT disk. We estimate that 25 percent, or eight engines, will require 
IPT disk replacement. Based on these figures, we estimate the total 
cost of the AD to U.S. operators to be $500,000.

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 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); 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 summary of the costs to comply with this AD and 
placed it in the AD Docket. You may get a copy of this summary at the 
address listed under ADDRESSES.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, 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 39-14894 (72 FR 
2610, January 22, 2007), and by adding a new airworthiness directive, 
Amendment 39-15623, to read as follows:

2008-16-05 Rolls-Royce Deutschland Ltd & Co KG (formerly Rolls-Royce 
plc): Amendment 39-15623. Docket No. FAA-2006-24825; Directorate 
Identifier 2006-NE-17-AD.

Effective Date

    (a) This airworthiness directive (AD) becomes effective 
September 4, 2008.
    (b) This AD supersedes AD 2007-02-17, Amendment 39-14894.

Applicability

    (c) This AD applies to Rolls-Royce Deutschland Ltd & Co KG (RRD) 
Dart 528, 529, 532, 535, 542, and 552 series turboprop engines. 
These engines are installed on, but not limited to, Hawker Siddeley, 
Argosy AW.650, Fairchild Hiller F-27, F-27A, F-27B, F-27F, F-27G, F-
27J, FH-227, FH-227B, FH-227C, FH-227D, FH-227E, Fokker F.27 all 
marks; British Aircraft Corporation Viscount 744, 745D and 810; 
Gulfstream G-159, General Dynamics Convair 240D or 600, or 600-240D, 
and 340D or 440D, or 640-340D and 640-440D airplanes.

Unsafe Condition

    (d) This AD results from us including an incorrect engine model 
and omitting an engine model from the applicability of the existing 
AD. We are issuing this AD to prevent HPT disk failure, which can 
result in an uncontained engine failure and damage to the airplane.

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.

Intermediate Pressure Turbine (IPT) Disk and High Pressure Turbine 
(HPT)/IPT Disk Seal Arm Inspections

    (f) Within 60 days after the effective date of the AD, do either 
of the following:
    (1) Perform a dimensional inspection of the IPT disk and repair 
or replace the IPT disk, if necessary using paragraph 3 of the 
Accomplishment Instructions of RRD service bulletin (SB) Da72-538, 
dated June 10, 2005; or
    (2) Perform an ultrasonic inspection of the disk seal arm 
contact between the HPT and the IPT using paragraph 3 of the 
Accomplishment Instructions of RRD SB Da72-536, Revision 1, dated 
August 25, 2003.
    (i) For RRD Dart 528, 529, 532, 535, 542 series turboprop 
engines if wear is outside allowable limits, before June 30, 2008, 
perform a dimensional inspection and repair or replace the IPT disk, 
if necessary. Use paragraph 3 of the Accomplishment Instructions of 
RRD SB Da72-538, dated June 10, 2005.
    (ii) For RRD Dart 552 series turboprop engines if wear is 
outside allowable limits, before July 31, 2008, perform a 
dimensional inspection and repair or replace the IPT disk, if 
necessary. Use paragraph 3 of the Accomplishment Instructions of RRD 
SB Da72-538, dated June 10, 2005.
    (iii) If wear is within allowable limits, perform a dimensional 
inspection of the IPT disk at the next engine shop visit or at next 
overhaul, whichever occurs first and repair or replace the IPT disk, 
if necessary. Use paragraph 3 of the Accomplishment Instructions of 
RRD SB Da72-538, dated June 10, 2005.

Alternative Methods of Compliance

    (g) 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

    (h) LBA airworthiness directive D-2005-197, dated June 30, 2005, 
also addresses the subject of this AD.

[[Page 44632]]

    (i) Contact Jason Yang, Aerospace Engineer, Engine Certification 
Office, FAA, Engine and Propeller Directorate, 12 New England 
Executive Park, Burlington, MA 01803; telephone (781) 238-7747, fax 
(781) 238-7199; e-mail: jason.yang@faa.gov, for more information 
about this AD.

Material Incorporated by Reference

    (j) You must use the Rolls-Royce Deutschland Ltd & Co KG service 
information specified in Table 1 to perform the actions required by 
this AD. The Director of the Federal Register previously approved 
the incorporation by reference of the service information specified 
in Table 1 on February 26, 2007 (72 FR 2610, January 22, 2007). 
Contact Rolls-Royce Deutschland Ltd & Co KG, Eschenweg 11, D-15827 
Dahlewitz, Germany; telephone 49 (0) 33-7086-1768; fax 49 (0) 33-
7086-3356 for a copy of this service information. You may review 
copies at the FAA, New England Region, 12 New England Executive 
Park, Burlington, MA; or 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.

                                       Table 1--Incorporation by Reference
----------------------------------------------------------------------------------------------------------------
       Service Bulletin No.                Page                Revision                       Date
----------------------------------------------------------------------------------------------------------------
Da72-536: Total Pages: 23........  All.................  1...................  August 25, 2003.
Da72-538: Total Pages: 21........  All.................  Original............  June 10, 2005.
----------------------------------------------------------------------------------------------------------------


    Issued in Burlington, Massachusetts, on July 24, 2008.
Carlos Pestana,
Acting Manager, Engine and Propeller Directorate, Aircraft 
Certification Service.
[FR Doc. E8-17423 Filed 7-30-08; 8:45 am]
BILLING CODE 4910-13-P