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Transportation, 400 Seventh Street SW., Room PL-401, Nassif Building, Washington, DC; on the
Internet at http://dms.dot.gov; or at the National Archives and Records Administration (NARA). For
information on the availability of this material at the NARA, call (202) 741-6030, or go to
http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.
Issued in Renton, Washington, on January 24, 2007.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification Service.
15
FAA
Aircraft Certification Service
AIRWORTHINESS DIRECTIVE
www.faa.gov/aircraft/safety/alerts/
www.gpoaccess.gov/fr/advanced.html
2007-03-13 Rolls-Royce Deutschland Ltd & Co KG (formerly Rolls-Royce plc): Amendment 39-
149824. Docket No. FAA-2006-25272; Directorate Identifier 2006-NE-16-AD.
Effective Date
(a) This airworthiness directive (AD) becomes effective March 19, 2007.
Affected ADs
(b) None.
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 makes; British Aircraft Corporation Viscount
744, 745D and 810; and Gulfstream G-159 airplanes.
Unsafe Condition
(d) This AD results from reports of high pressure turbine (HPT) disk rim failures. We are issuing
this AD to prevent HPT disk rim failures resulting in the release of portions of the HPT disk,
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.
(f) Using RRD Dart Service Bulletin (SB) Da72-543, dated July 11, 2003, and the scheme
detailed in RRD Repair Instruction, “Restoration of Platform and Shroud gaps by welding, DRS
611,” dated July 15, 2005, inspect and repair HPT blade platforms and shroud abutment faces by
weld build-up:
(1) After no more than 1,500 flight hours from the date of issue of this AD, if the engine has not
been previously inspected or reworked to the DRS 611 standard;
(2) Each time new blades are installed; and
(3) Before exceeding 7,400 hours since last HPT blade inspection or rework to DRS 611
standard.
2007-03-13 2
16 BW 2007-04
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 2003-217, dated August 7, 2003, also addresses the subject of
this AD.
(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 Rolls-Royce Deutschland Ltd & Co KG (RRD) Dart Service Bulletin Da72-
543, dated July 11, 2003, and RRD Dart Repair Instruction, “Restoration of Platform and Shroud
Gaps by Gaps by Welding, DRS 611,” dated July 15, 2005, to perform the actions required by this
AD.
(1) The Director of the Federal Register approved the incorporation by reference of this service
bulletin in accordance with 5 U.S.C. 552(a) and 1 CFR part 51.
(2) Contact Rolls-Royce Deutschland Ltd & Co KG, Eschenweg 11, D-15827 Dahlewitz,
Germany; telephone 49 (0) 33-7086-1768; fax 49 (0) 33-7086-335 for a copy of this service
information.
(3) You may review copies 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.
Issued in Burlington, Massachusetts, on January 26, 2007.
Francis A. Favara,
Manager, Engine and Propeller Directorate, Aircraft Certification Service.
[FR Doc. E7-1708 Filed 2-9-07; 8:45 am]
17
FAA
Aircraft Certification Service
AIRWORTHINESS DIRECTIVE
www.faa.gov/aircraft/safety/alerts/
www.gpoaccess.gov/fr/advanced.html
2007-03-15 CFM International: Amendment 39-14926; Docket No. FAA-2007-27112; Directorate
Identifier 2001-NE-49-AD.
Effective Date
(a) This airworthiness directive (AD) becomes effective March 19, 2007.
Affected ADs
(b) This AD supersedes AD 2003-02-04, Amendment 39-13020.
　
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