83 FR 40961 - Airworthiness Directives; Rolls-Royce Corporation Engines
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 83, Issue 160 (August 17, 2018)
Federal Aviation Administration
Federal Register Volume 83, Issue 160 (August 17, 2018)
| Page Range | 40961-40963 | |
| FR Document | 2018-17704 |
[Federal Register Volume 83, Number 160 (Friday, August 17, 2018)] [Rules and Regulations] [Pages 40961-40963] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2018-17704] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2018-0259; Product Identifier 2018-NE-09-AD; Amendment 39-19358; AD 2018-17-04] RIN 2120-AA64 Airworthiness Directives; Rolls-Royce Corporation Engines AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. ----------------------------------------------------------------------- SUMMARY: We are adopting a new airworthiness directive (AD) for certain Rolls-Royce Corporation (RRC) AE 2100D2A and AE 2100D3 model turboprop engines and AE 3007A2 model turbofan engines. This AD was prompted by the possibility of a low-cycle fatigue failure on certain turbine wheels. This AD requires removing the affected turbine wheels at the next engine shop visit or before reaching the new reduced life limit, whichever occurs first, and replacing them with parts eligible for installation. We are issuing this AD to address the unsafe condition on these products. DATES: This AD is effective September 21, 2018. The Director of the Federal Register approved the incorporation by reference [[Page 40962]] of certain publications listed in this AD as of September 21, 2018. ADDRESSES: For service information identified in this final rule, contact Rolls-Royce Corporation, 450 South Meridian Street, Indianapolis, IN 46225; phone: 317-230-3774. You may view this service information at the FAA, Engine and Propeller Standards Branch, 1200 District Avenue, Burlington, MA 01803. For information on the availability of this material at the FAA, call 781-238-7759. It is also available on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2018-0259. Examining the AD Docket You may examine the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2018- 0259; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this final rule, the regulatory evaluation, any comments received, and other information. The address for Docket Operations (phone: 800-647- 5527) is Docket Operations, U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590. FOR FURTHER INFORMATION CONTACT: Kyri Zaroyiannis, Aerospace Engineer, Chicago ACO Branch, FAA, 2300 E. Devon Ave., Des Plaines, IL 60018; phone: 847-294-7836; fax: 847-294-7834; email: [email protected]. SUPPLEMENTARY INFORMATION: Discussion We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to certain RRC AE 2100D2A and AE 2100D3 model turboprop engines and AE 3007A2 model turbofan engines. The NPRM published in the Federal Register on April 30, 2018 (83 FR 18751). The NPRM was prompted by the possibility of a low-cycle fatigue failure on certain turbine wheels. The affected turbine wheels include 1st-stage gas generator turbine wheels, installed on AE 2100D2A and AE 2100D3 model turboprop engines, and 1st-stage high-pressure turbine (HPT) wheels, installed on AE 3007A2 turbofan engines. The NPRM proposed to require removing the affected turbine wheels at the next engine shop visit or before reaching the new reduced life limit, whichever occurs first, and replacing them with parts eligible for installation. We are issuing this AD to address the unsafe condition on these products. Comments We gave the public the opportunity to participate in developing this final rule. We have considered the comment received. RRC supported the NPRM. Conclusion We reviewed the relevant data, considered the comments received, and determined that air safety and the public interest require adopting this final rule as proposed. Related Service Information Under 1 CFR Part 51 We reviewed RRC Alert Service Bulletin (ASB) AE 2100D2-A-72-090, Revision 1, dated July 11, 2014, and RRC ASB AE 2100D3-A-72-286, Revision 1, dated July 11, 2014 (one document, referred to herein as ``RRC ASB AE 2100D2-A-72-090/AE 2100D3-A-72-286''), and RRC ASB AE 3007A-A-72-419, Revision 2, dated December 4, 2017. RRC ASB AE 2100D2- A-72-090/AE 2100D3-A-72-286 provides removal and replacement instructions and a new life limit for the affected 1st-stage gas generator turbine wheels installed on RRC AE 2100D2A and AE 2100D3 model turboprop engines. ASB AE 3007A-A-72-419 provides removal and replacement instructions and a new life limit for 1st-stage HPT wheels installed on RRC AE 3007A2 model turbofan engines. This service information is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in the ADDRESSES section. Costs of Compliance We estimate that this AD affects nine engines installed on airplanes of U.S. registry. We estimate the following costs to comply with this AD: Estimated Costs ---------------------------------------------------------------------------------------------------------------- Cost per Cost on U.S. Action Labor cost Parts cost product operators ---------------------------------------------------------------------------------------------------------------- Replace turbine wheels............. 0 work-hours x $85 per hour $160,829 $160,829 $1,447,461 = $0. ---------------------------------------------------------------------------------------------------------------- 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. This AD is issued in accordance with authority delegated by the Executive Director, Aircraft Certification Service, as authorized by FAA Order 8000.51C. In accordance with that order, issuance of ADs is normally a function of the Compliance and Airworthiness Division, but during this transition period, the Executive Director has delegated the authority to issue ADs applicable to engines, propellers, and associated appliances to the Manager, Engine and Propeller Standards Branch, Policy and Innovation Division. Regulatory Findings 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), (3) Will not affect intrastate aviation in Alaska, and [[Page 40963]] (4) 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, Incorporation by reference, Safety. Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA 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 adding the following new airworthiness directive (AD): 2018-17-04 Roll-Royce Corporation (Type Certificate previously held by Allison Engine Company): Amendment 39-19358; Docket No. FAA-2018- 0259; Product Identifier 2018-NE-09-AD. (a) Effective Date This AD is effective September 21, 2018. (b) Affected ADs None. (c) Applicability This AD applies to: (1) Rolls-Royce Corporation (RRC) AE 2100D2A turboprop engines with 1st-stage gas generator turbine wheels, part number (P/N) 23089692, with serial numbers (S/Ns) MW65898 or MW68310, installed. (2) RRC AE 2100D3 turboprop engines with 1st-stage gas generator turbine wheels, P/N 23088906, with S/Ns MW65895, MW65896, MW65900, MW65901, MW65903, MW68305, MW68306, MW68307, MW68312, MW68314, MW68316, MW68318, or MW68319, installed. (3) RRC AE 3007A2 turbofan engines with 1st-stage high-pressure turbine (HPT) wheels, P/N 23088906, with S/Ns MW65894, MW68303, or MW68315, installed. (d) Subject Joint Aircraft System Component (JASC) Code 7250, Turbine section. (e) Unsafe Condition This AD was prompted by the possibility of steel inclusions in the turbine wheel forging. We are proposing this AD to prevent a low-cycle fatigue failure of a 1st-stage gas generator turbine wheel or 1st-stage HPT wheel. The unsafe condition, if not addressed, could result in uncontained turbine wheel release, damage to the engine, and damage to the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions (1) Remove the affected 1st-stage gas generator turbine wheel and replace with a part eligible for installation at the next engine shop visit or before exceeding the life limit of 4,800 engine cycles, whichever occurs first, in accordance with the Accomplishment Instructions, Paragraph 2, of RRC Alert Service Bulletin (ASB) AE 2100D2-A-72-090, Revision 1, dated July 11, 2014, and RRC ASB AE 2100D3-A-72-286, Revision 1, dated July 11, 2014 (co- published as one document). (2) Remove the affected 1st-stage HPT wheel and replace with a part eligible for installation at the next engine shop visit or before exceeding the life limit of 5,600 engine cycles, whichever occurs first, in accordance with the Accomplishment Instructions, Paragraph 2, of RRC ASB AE 3007A-A-72-419, Revision 2, dated December 4, 2017. (h) Definition For the purpose of this AD, an ``engine shop visit'' is the induction of an engine into the shop for maintenance involving the separation of pairs of major mating engine flanges, except that the separation of engine flanges solely for the purposes of transportation without subsequent engine maintenance is not an engine shop visit. (i) Alternative Methods of Compliance (AMOCs) (1) The Manager, Chicago ACO Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the certification office, send it to the attention of the person identified in paragraph (j) of this AD. (2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office. (j) Related Information For more information about this AD, contact Kyri Zaroyiannis, Aerospace Engineer, Chicago ACO Branch, FAA, 2300 E. Devon Ave., Des Plaines, IL, 60018; phone: 847-294-7836; fax: 847-294-7834; email: [email protected]. (k) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise. (i) Rolls-Royce Corporation (RRC) Alert Service Bulletin (ASB) AE 2100D2-A-72-090, Revision 1, dated July 11, 2014, and RRC ASB AE 2100D3-A-72-286, Revision 1, dated July 11, 2014 (co-published as one document). (ii) RRC ASB AE 3007A-A-72-419, Revision 2, dated December 4, 2017. (3) For RRC service information identified in this AD, contact Rolls-Royce Corporation, 450 South Meridian Street, Indianapolis, IN, 46225; phone: 317-230-3774. (4) You may view this service information at FAA, Engine and Propeller Standards Branch, 1200 District Avenue, Burlington, MA, 01803. For information on the availability of this material at the FAA, call 781-238-7759. (5) You may view this service information that is incorporated by reference 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 August 13, 2018. Karen M. Grant, Acting Manager, Engine and Propeller Standards Branch, Aircraft Certification Service. [FR Doc. 2018-17704 Filed 8-16-18; 8:45 am] BILLING CODE 4910-13-P
![Federal Register / Vol. 83, No. 160 / Friday, August 17, 2018 / Rules and Regulations 40961
under the criteria of the Regulatory (h) Inspection and Corrective Action (i) Fokker Service Bulletin SBF100–32–
Flexibility Act. Within 12 months after the effective date 168, dated May 22, 2017.
of this AD, perform a general visual (ii) Reserved.
List of Subjects in 14 CFR Part 39 inspection of the left-hand (LH) and right- (3) For service information identified in
hand (RH) MLG retraction actuators for this AD, contact Fokker Services B.V.,
Air transportation, Aircraft, Aviation Technical Services Dept., P.O. Box 1357,
deficiencies (i.e., check for the presence of
safety, Incorporation by reference, 2130 EL Hoofddorp, the Netherlands;
interference damage, including evidence of
Safety. removed damage, and for the orientation of telephone +31 (0)88–6280–350; fax +31
the greasing nipple), in accordance with the (0)88–6280–111; email technicalservices@
Adoption of the Amendment fokker.com; internet http://www.myfokker
Accomplishment Instructions of Fokker
Accordingly, under the authority Service Bulletin SBF100–32–168, dated May fleet.com.
delegated to me by the Administrator, 22, 2017. If any deficiency is found, before (4) You may view this service information
further flight, replace the affected MLG at the FAA, Transport Standards Branch,
the FAA amends 14 CFR part 39 as
retraction actuator with a serviceable part, in 2200 South 216th St., Des Moines, WA. For
follows: information on the availability of this
accordance with the Accomplishment
Instructions of Fokker Service Bulletin material at the FAA, call 206–231–3195.
PART 39—AIRWORTHINESS (5) You may view this service information
SBF100–32–168, dated May 22, 2017.
DIRECTIVES that is incorporated by reference at the
(i) Other FAA AD Provisions National Archives and Records
■ 1. The authority citation for part 39 The following provisions also apply to this Administration (NARA). For information on
continues to read as follows: AD: the availability of this material at NARA, call
Authority: 49 U.S.C. 106(g), 40113, 44701. (1) Alternative Methods of Compliance 202–741–6030, or go to: http://
(AMOCs): The Manager, International www.archives.gov/federal-register/cfr/ibr-
§ 39.13 [Amended] Section, Transport Standards Branch, FAA, locations.html.
has the authority to approve AMOCs for this
Issued in Des Moines, Washington, on
■ 2. The FAA amends § 39.13 by adding AD, if requested using the procedures found
August 7, 2018.
the following new airworthiness in 14 CFR 39.19. In accordance with 14 CFR
39.19, send your request to your principal Michael Kaszycki,
directive (AD):
inspector or local Flight Standards District Acting Director, System Oversight Division,
2018–17–06 Fokker Services B.V.: Office, as appropriate. If sending information Aircraft Certification Service.
Amendment 39–19360; Docket No. directly to the International Section, send it [FR Doc. 2018–17624 Filed 8–16–18; 8:45 am]
FAA–2018–0303; Product Identifier to the attention of the person identified in
2018–NM–006–AD. BILLING CODE 4910–13–P
paragraph (j)(2) of this AD. Information may
(a) Effective Date be emailed to: 9-ANM-116-AMOC-
REQUESTS@faa.gov. Before using any
This AD is effective September 21, 2018. DEPARTMENT OF TRANSPORTATION
approved AMOC, notify your appropriate
(b) Affected ADs principal inspector, or lacking a principal
Federal Aviation Administration
None. inspector, the manager of the local flight
standards district office/certificate holding
(c) Applicability district office. 14 CFR Part 39
This AD applies to Fokker Services B.V. (2) Contacting the Manufacturer: For any
[Docket No. FAA–2018–0259; Product
Model F28 Mark 0070 and 0100 airplanes, requirement in this AD to obtain corrective
Identifier 2018–NE–09–AD; Amendment 39–
certificated in any category, all serial actions from a manufacturer, the action must
19358; AD 2018–17–04]
numbers, if equipped with Goodrich main be accomplished using a method approved
landing gear (MLG), part number (P/N) by the Manager, International Section, RIN 2120–AA64
41050-x (all dashes) or P/N 41060-x (all Transport Standards Branch, FAA; or the
dashes). European Aviation Safety Agency (EASA); or Airworthiness Directives; Rolls-Royce
Fokker Services B.V.’s EASA Design Corporation Engines
(d) Subject Organization Approval (DOA). If approved by
Air Transport Association (ATA) of the DOA, the approval must include the AGENCY: Federal Aviation
America Code 32, Landing gear. DOA-authorized signature. Administration (FAA), DOT.
(e) Reason (j) Related Information ACTION: Final rule.
This AD was prompted by a report that the (1) Refer to Mandatory Continuing
Airworthiness Information (MCAI) EASA AD SUMMARY: We are adopting a new
retraction actuator eye-end of a Goodrich
MLG failed. We are issuing this AD to 2018–0001, dated January 4, 2018, for related airworthiness directive (AD) for certain
address failure of the retraction actuator eye- information. This MCAI may be found in the Rolls-Royce Corporation (RRC) AE
end of a Goodrich MLG, which could prevent AD docket on the internet at http:// 2100D2A and AE 2100D3 model
retraction of the MLG and/or its complete www.regulations.gov by searching for and turboprop engines and AE 3007A2
extension, possibly resulting in damage to locating Docket No. FAA–2018–0303. model turbofan engines. This AD was
the airplane during landing, and consequent (2) For more information about this AD, prompted by the possibility of a low-
injury to occupants. contact Tom Rodriguez, Aerospace Engineer, cycle fatigue failure on certain turbine
International Section, Transport Standards
(f) Compliance wheels. This AD requires removing the
Branch, FAA, 2200 South 216th St., Des
Comply with this AD within the Moines, WA 98198; telephone and fax 206– affected turbine wheels at the next
compliance times specified, unless already 231–3226. engine shop visit or before reaching the
done. new reduced life limit, whichever
(k) Material Incorporated by Reference occurs first, and replacing them with
(g) Definition (1) The Director of the Federal Register parts eligible for installation. We are
daltland on DSKBBV9HB2PROD with RULES
For the purposes of this AD, a ‘‘serviceable approved the incorporation by reference issuing this AD to address the unsafe
part’’ is a serviceable retraction actuator with (IBR) of the service information listed in this condition on these products.
an eye-end that does not have any indication paragraph under 5 U.S.C. 552(a) and 1 CFR
of interference or damage, as specified in the part 51. DATES: This AD is effective September
Accomplishment Instructions of Fokker (2) You must use this service information 21, 2018.
Service Bulletin SBF100–32–168, dated May as applicable to do the actions required by The Director of the Federal Register
22, 2017. this AD, unless this AD specifies otherwise. approved the incorporation by reference
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![Federal Register / Vol. 83, No. 160 / Friday, August 17, 2018 / Rules and Regulations 40963
(4) Will not have a significant (f) Compliance ASB AE 2100D3–A–72–286, Revision 1,
economic impact, positive or negative, Comply with this AD within the dated July 11, 2014 (co-published as one
on a substantial number of small entities compliance times specified, unless already document).
under the criteria of the Regulatory done. (ii) RRC ASB AE 3007A–A–72–419,
Revision 2, dated December 4, 2017.
Flexibility Act. (g) Required Actions (3) For RRC service information identified
List of Subjects in 14 CFR Part 39 (1) Remove the affected 1st-stage gas in this AD, contact Rolls-Royce Corporation,
generator turbine wheel and replace with a 450 South Meridian Street, Indianapolis, IN,
Air transportation, Aircraft, Aviation part eligible for installation at the next engine 46225; phone: 317–230–3774.
safety, Incorporation by reference, shop visit or before exceeding the life limit (4) You may view this service information
Safety. of 4,800 engine cycles, whichever occurs at FAA, Engine and Propeller Standards
first, in accordance with the Branch, 1200 District Avenue, Burlington,
Adoption of the Amendment MA, 01803. For information on the
Accomplishment Instructions, Paragraph 2,
Accordingly, under the authority of RRC Alert Service Bulletin (ASB) AE availability of this material at the FAA, call
delegated to me by the Administrator, 2100D2–A–72–090, Revision 1, dated July 11, 781–238–7759.
2014, and RRC ASB AE 2100D3–A–72–286, (5) You may view this service information
the FAA amends 14 CFR part 39 as that is incorporated by reference at the
follows: Revision 1, dated July 11, 2014 (co-published
as one document). National Archives and Records
(2) Remove the affected 1st-stage HPT Administration (NARA). For information on
PART 39—AIRWORTHINESS the availability of this material at NARA, call
wheel and replace with a part eligible for
DIRECTIVES installation at the next engine shop visit or 202–741–6030, or go to: http://
before exceeding the life limit of 5,600 engine www.archives.gov/federal-register/cfr/ibr-
■ 1. The authority citation for part 39 cycles, whichever occurs first, in accordance locations.html.
continues to read as follows: with the Accomplishment Instructions, Issued in Burlington, Massachusetts, on
Authority: 49 U.S.C. 106(g), 40113, 44701. Paragraph 2, of RRC ASB AE 3007A–A–72– August 13, 2018.
419, Revision 2, dated December 4, 2017.
§ 39.13 [Amended] Karen M. Grant,
(h) Definition Acting Manager, Engine and Propeller
■ 2. The FAA amends § 39.13 by adding For the purpose of this AD, an ‘‘engine Standards Branch, Aircraft Certification
the following new airworthiness shop visit’’ is the induction of an engine into Service.
directive (AD): the shop for maintenance involving the [FR Doc. 2018–17704 Filed 8–16–18; 8:45 am]
2018–17–04 Roll-Royce Corporation (Type separation of pairs of major mating engine BILLING CODE 4910–13–P
Certificate previously held by Allison flanges, except that the separation of engine
Engine Company): Amendment 39– flanges solely for the purposes of
19358; Docket No. FAA–2018–0259; transportation without subsequent engine DEPARTMENT OF TRANSPORTATION
Product Identifier 2018–NE–09–AD. maintenance is not an engine shop visit.
(a) Effective Date (i) Alternative Methods of Compliance Federal Aviation Administration
(AMOCs)
This AD is effective September 21, 2018.
(1) The Manager, Chicago ACO Branch, 14 CFR Part 39
(b) Affected ADs FAA, has the authority to approve AMOCs
for this AD, if requested using the procedures [Docket No. FAA–2018–0712; Product
None.
found in 14 CFR 39.19. In accordance with Identifier 2018–NM–089–AD; Amendment
(c) Applicability 14 CFR 39.19, send your request to your 39–19361; AD 2018–17–07]
This AD applies to: principal inspector or local Flight Standards RIN 2120–AA64
(1) Rolls-Royce Corporation (RRC) AE District Office, as appropriate. If sending
2100D2A turboprop engines with 1st-stage information directly to the manager of the Airworthiness Directives; ATR—GIE
gas generator turbine wheels, part number (P/ certification office, send it to the attention of
N) 23089692, with serial numbers (S/Ns) the person identified in paragraph (j) of this
Avions de Transport Régional
MW65898 or MW68310, installed. AD. Airplanes
(2) RRC AE 2100D3 turboprop engines with (2) Before using any approved AMOC, AGENCY: Federal Aviation
1st-stage gas generator turbine wheels, P/N notify your appropriate principal inspector,
23088906, with S/Ns MW65895, MW65896, or lacking a principal inspector, the manager
Administration (FAA), Department of
MW65900, MW65901, MW65903, MW68305, of the local flight standards district office/ Transportation (DOT).
MW68306, MW68307, MW68312, MW68314, certificate holding district office. ACTION: Final rule; request for
MW68316, MW68318, or MW68319,
(j) Related Information
comments.
installed.
(3) RRC AE 3007A2 turbofan engines with For more information about this AD, SUMMARY: We are superseding
1st-stage high-pressure turbine (HPT) wheels, contact Kyri Zaroyiannis, Aerospace Airworthiness Directive (AD) 2017–24–
P/N 23088906, with S/Ns MW65894, Engineer, Chicago ACO Branch, FAA, 2300 E. 01, which applied to certain ATR—GIE
MW68303, or MW68315, installed. Devon Ave., Des Plaines, IL, 60018; phone: Avions de Transport Régional Model
847–294–7836; fax: 847–294–7834; email:
(d) Subject kyri.zaroyiannis@faa.gov.
ATR42–500 airplanes and Model
Joint Aircraft System Component (JASC) ATR72–212A airplanes. AD 2017–24–01
(k) Material Incorporated by Reference required an inspection for routing
Code 7250, Turbine section.
(1) The Director of the Federal Register attachments of electrical harness
(e) Unsafe Condition approved the incorporation by reference bundles and for wire damage, and
This AD was prompted by the possibility (IBR) of the service information listed in this corrective actions if necessary. This new
of steel inclusions in the turbine wheel paragraph under 5 U.S.C. 552(a) and 1 CFR AD adds additional airplanes to the
daltland on DSKBBV9HB2PROD with RULES
forging. We are proposing this AD to prevent part 51. applicability. This AD was prompted by
a low-cycle fatigue failure of a 1st-stage gas (2) You must use this service information
generator turbine wheel or 1st-stage HPT as applicable to do the actions required by
a determination that additional
wheel. The unsafe condition, if not this AD, unless the AD specifies otherwise. airplanes are affected by the unsafe
addressed, could result in uncontained (i) Rolls-Royce Corporation (RRC) Alert condition. We are issuing this AD to
turbine wheel release, damage to the engine, Service Bulletin (ASB) AE 2100D2–A–72– address the unsafe condition on these
and damage to the airplane. 090, Revision 1, dated July 11, 2014, and RRC products.
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Document Created: 2018-08-17 03:24:29
Document Modified: 2018-08-17 03:24:29
| Category | Regulatory Information | |
| Collection | Federal Register | |
| sudoc Class | AE 2.7: GS 4.107: AE 2.106: | |
| Publisher | Office of the Federal Register, National Archives and Records Administration | |
| Section | Rules and Regulations | |
| Action | Final rule. | |
| Dates | This AD is effective September 21, 2018. | |
| Contact | Kyri Zaroyiannis, Aerospace Engineer, Chicago ACO Branch, FAA, 2300 E. Devon Ave., Des Plaines, IL 60018; phone: 847-294-7836; fax: 847-294-7834; email: [email protected] | |
| FR Citation | 83 FR 40961 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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