Airworthiness Directives; General Electric Company Turbofan Engines, 47235-47237 [2013-18794]

Download as PDF Federal Register / Vol. 78, No. 150 / Monday, August 5, 2013 / Proposed Rules List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, 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 airworthiness directive (AD): ■ The Boeing Company: Docket No. FAA– 2013–0670; Directorate Identifier 2013– NM–081–AD. (a) Comments Due Date We must receive comments by September 19, 2013. (b) Affected ADs None. (c) Applicability This AD applies to The Boeing Company Model 737–600, –700, –800, –900, and –900ER airplanes, certificated in any category, with Live TV radomes having part number (P/N) 5063–100–V3 or 5063–101–V2 and a serial number in the range of 001 through 497 inclusive, and modified by the applicable supplemental type certificate (STC) identified in paragraphs (c)(1) and (c)(2) of this AD. (1) ST00284BO, http://rgl.faa.gov/ Regulatory_and_Guidance_Library/rgstc.nsf/ 0/3ecc2e5e5f408bc1862579b30048ed60/ $FILE/ST00284BO.pdf. (2) ST02887AT, http://rgl.faa.gov/ Regulatory_and_Guidance_Library/rgstc.nsf/ 0/9bf85b85ea3e295d8625735600721055/ $FILE/ST02887AT.pdf. emcdonald on DSK67QTVN1PROD with PROPOSALS (d) Subject Joint Aircraft System Component (JASC)/ Air Transport Association (ATA) of America Code 53, Fuselage. (e) Unsafe Condition This AD was prompted by reports of cracks found during inspections of the radome assembly. We are issuing this AD to detect and correct cracks in the in-flight entertainment system radome assembly, which could result in the radome (or pieces) separating from the airplane and striking the tail, and consequently reducing the controllability of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. VerDate Mar<15>2010 16:53 Aug 02, 2013 Jkt 229001 (g) Repetitive Inspections and Corrective Actions Within 1,250 flight hours after the effective date of this AD: Perform a detailed inspection for cracks of the radome assembly, in accordance with the Accomplishment Instructions of Live TV Service Bulletin B737–53–0011, dated March 29, 2013. Repeat the inspection thereafter at intervals not to exceed 1,250 flight hours. If any crack is found during any inspection required by this paragraph, before further flight, replace the radome in accordance with the Accomplishment Instructions of Live TV Service Bulletin B737–53–0011, dated March 29, 2013. (h) Reporting Requirement If any crack is found during any inspection required by paragraph (g) of this AD, submit a report of the findings to Live TV, 8900 Hangar Boulevard, Orlando, FL 32827; telephone 407–812–2600; fax 407–812–2526; email JaneAnne.Webb@livetv.net; at the applicable time specified in paragraph (h)(1) or (h)(2) of this AD. The report must include the information specified in the service bulletin reporting form provided in Live TV Service Bulletin B737–53–0011, dated March 29, 2013. (1) If the inspection was accomplished on or after the effective date of this AD: Submit the report within 30 days after the inspection. (2) If the inspection was accomplished before the effective date of this AD: Submit the report within 30 days after the effective date of this AD. (i) Special Flight Permit Special flight permits, as described in Section 21.197 and Section 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199), are not allowed. (j) Paperwork Reduction Act Burden Statement A federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to a penalty for failure to comply with a collection of information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a current valid OMB Control Number. The OMB Control Number for this information collection is 2120–0056. Public reporting for this collection of information is estimated to be approximately 5 minutes per response, including the time for reviewing instructions, completing and reviewing the collection of information. All responses to this collection of information are mandatory. Comments concerning the accuracy of this burden and suggestions for reducing the burden should be directed to the FAA at: 800 Independence Ave. SW., Washington, DC 20591, Attn: Information Collection Clearance Officer, AES–200. (k) Alternative Methods of Compliance (AMOCs) (1) The Manager, Atlanta Aircraft Certification Office (ACO), FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 PO 00000 Frm 00022 Fmt 4702 Sfmt 4702 47235 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 ACO, send it to the attention of the person identified in the Related Information section 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. (3) If the service information contains steps that are labeled as RC (Required for Compliance), those steps must be done to comply with this AD; any steps that are not labeled as RC are recommended. Those steps that are not labeled as RC may be deviated from, done as part of other actions, or done using accepted methods different from those identified in the specified service information without obtaining approval of an AMOC, provided the steps labeled as RC can be done and the airplane can be put back in a serviceable condition. Any substitutions or changes to steps labeled as RC require approval of an AMOC. (l) Related Information (1) For more information about this AD, contact Barry Culler, Aerospace Engineer, Airframe Branch, ACE–117A, FAA, Atlanta Aircraft Certification Office (ACO), 1701 Columbia Avenue, College Park, GA 30337; phone: 404–474–5546; fax: 404–474–5605; email: william.culler@faa.gov. (2) For service information identified in this AD, contact Live TV, 8900 Hangar Boulevard, Orlando, FL 32827; telephone 407–812–2600; fax 407–812–2526; Internet http://www.livetv.net. You may review copies of the referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425–227–1221. Issued in Renton, Washington, on July 23, 2013. Stephen P. Boyd, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2013–18800 Filed 8–2–13; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2013–0475; Directorate Identifier 13–NE–18–AD] RIN 2120–AA64 Airworthiness Directives; General Electric Company Turbofan Engines Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: We propose to adopt a new airworthiness directive (AD) for certain SUMMARY: E:\FR\FM\05AUP1.SGM 05AUP1 47236 Federal Register / Vol. 78, No. 150 / Monday, August 5, 2013 / Proposed Rules emcdonald on DSK67QTVN1PROD with PROPOSALS General Electric Company (GE) model GEnx–2B67 and GEnx–2B67B turbofan engines. This proposed AD was prompted by the original equipment manufacturer’s disclosure that certain critical rotating life-limited parts (LLPs) used in Boeing 747–8 flight tests had consumed more cyclic life than they would have in revenue flight cycles. These parts were then installed into engines and introduced into revenue service without adjustment to remaining cyclic life. This proposed AD would require a one-time adjustment to the cycle counts of those LLPs to account for the additional low cycle fatigue (LCF) life consumed during flight tests. We are proposing this AD to prevent the failure of critical rotating LLPs, uncontained engine failure, and damage to the airplane. DATES: We must receive comments on this proposed AD by October 4, 2013. ADDRESSES: You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods: • Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments. • Fax: 202–493–2251. • Mail: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE., Washington, DC 20590. • Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this proposed AD, contact General Electric Company, GE Aviation, Room 285, One Neumann Way, Cincinnati, OH; phone: 513–552–3272; email: geae.aoc@ge.com. You may view this service information at the FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA. For information on the availability of this material at the FAA, call 781–238–7125. Examining the AD Docket You may examine the AD docket on the Internet at http:// www.regulations.gov; or in person at the Docket Management Facility 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 Office (phone: 800–647–5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Jason Yang, Aerospace Engineer, Engine VerDate Mar<15>2010 16:53 Aug 02, 2013 Jkt 229001 Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781–238–7747; fax: 781–238– 7199; email: Jason.Yang@faa.gov. SUPPLEMENTARY INFORMATION: Comments Invited Discussion We propose to adopt a new AD for certain GE model GEnx–2B67 and GEnx–2B67B turbofan engines. This proposed AD was prompted by GE’s disclosure that certain critical rotating LLPs used in Boeing 747–8 flight tests had consumed more cyclic life than they would have in revenue flight cycles. This additional life usage was due to multiple changes in the engine rotor speed and thermal environment that are not performed in a typical revenue service flight. These parts were then installed into engines and introduced into revenue service without adjustment to remaining cyclic life. This proposed AD would require a one-time adjustment to the cycle counts of those LLPs to account for the additional LCF life consumed. This condition, if not corrected, could result in the failure of critical rotating LLPs, uncontained engine failure, and damage to the airplane. Relevant Service Information We reviewed GE Service Bulletin (SB) No. 72–0116, Revision 1, dated April 23, 2013. The SB lists each affected critical rotating LLP by part number and serial number and prescribes the exact number of cycles to add to the cycle count for each affected LLP as a onetime adjustment. The list is extensive. Frm 00023 Fmt 4702 We are proposing this AD because we evaluated all the relevant information and determined the unsafe condition described previously is likely to exist or develop in other products of these same type designs. Proposed AD Requirements We invite you to send any written relevant data, views, or arguments about this proposal. Send your comments to an address listed under the ADDRESSES section. Include ‘‘Docket No. FAA– 2013–0475; Directorate Identifier 13– NE–18–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 because of those comments. We will post all comments we receive, without change, to http:// www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this proposed AD. PO 00000 FAA’s Determination Sfmt 4702 This proposed AD would require a one-time adjustment to the cycle counts of certain critical rotating LLPs. Costs of Compliance We estimate that this proposed AD affects 4 engines installed on airplanes of U.S. registry. We also estimate that it would take about 1 hour per engine to comply with this proposed AD. The average labor rate is $85 per hour. The prorated cost of required parts would be about $50,000 per engine. Based on these figures, we estimate the cost of the proposed AD to U.S. operators to be $200,340. 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 E:\FR\FM\05AUP1.SGM 05AUP1 Federal Register / Vol. 78, No. 150 / Monday, August 5, 2013 / Proposed Rules Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska to the extent that it justifies making a regulatory distinction, and (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. 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 airworthiness directive (AD): ■ General Electric Company: Docket No. FAA– 2013–0475; Directorate Identifier 2013– NE–18–AD. (a) Comments Due Date We must receive comments by October 4, 2013. (b) Affected ADs None. emcdonald on DSK67QTVN1PROD with PROPOSALS (d) Unsafe Condition This AD was prompted by GE’s report that certain critical rotating life-limited parts (LLPs) used in Boeing 747–8 flight tests had consumed more cyclic life than they would have in revenue service flights. These parts were then installed into engines and introduced into revenue service without adjustment to remaining cyclic life. We are issuing this AD to prevent the failure of critical rotating LLPs, uncontained engine failure, and damage to the airplane. (e) Compliance Comply with this AD within the compliance times specified, unless already done. 16:53 Aug 02, 2013 (g) Alternative Methods of Compliance (AMOCs) The Manager, Engine Certification Office, FAA, may approve AMOCs for this AD. Use the procedures found in 14 CFR 39.19 to make your request. (h) Related Information (1) For more information about this AD, contact Jason Yang, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781–238–7747; fax: 781–238–7199; email: Jason.Yang@faa.gov. (2) Refer to GE SB No. 72–0116, Revision 1, dated April 23, 2013 for related information. (3) For service information identified in this proposed AD, contact General Electric Company, GE Aviation, Room 285, One Neumann Way, Cincinnati, OH; phone: 513– 552–3272; email: geae.aoc@ge.com. You may view this service information at the FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA. For information on the availability of this material at the FAA, call 781–238–7125. Issued in Burlington, Massachusetts, on July 25, 2013. Frank P. Paskiewicz, Acting Director, Aircraft Certification Service. [FR Doc. 2013–18794 Filed 8–2–13; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION (c) Applicability This AD applies to certain serial number General Electric Company (GE) model GEnx– 2B67 and GEnx–2B67B turbofan engines. The affected GEnx–2B serial numbers are: 959– 102 through 959–104; 959–107; 959–110 through 959–111; 959–113 through 959–118; 959–121; 959–124 through 959–133; 959–159 through 959–161; 959–164; 959–176; and 959–191. VerDate Mar<15>2010 (f) Adjust the Cycle Counts of Certain Critical Rotating LLPs Within 30 days after the effective date of this AD, perform a one-time adjustment to the cycle count of each part identified in paragraph 4, Appendix A, of GE Service Bulletin (SB) No. 72–0116, Revision 1, dated April 23, 2013. Jkt 229001 Federal Aviation Administration 14 CFR Part 71 [Docket No. FAA–2013–0255; Airspace Docket No. 13–ACE–4] Proposed Amendment of Class E Airspace; Chariton, IA Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: This action proposes to amend Class E airspace at Chariton, IA. Decommissioning of the Chariton nondirectional beacon (NDB) at Chariton Municipal Airport has made reconfiguration necessary for standard instrument approach procedures and for the safety and management of Instrument Flight Rules (IFR) operations at the airport. SUMMARY: PO 00000 Frm 00024 Fmt 4702 Sfmt 4702 47237 0901 UTC. Comments must be received on or before September 19, 2013. ADDRESSES: Send comments on this proposal to the U.S. Department of Transportation, Docket Operations, 1200 New Jersey Avenue SE., West Building Ground Floor, Room W12–140, Washington, DC 20590–0001. You must identify the docket number FAA–2013– 0255/Airspace Docket No. 13–ACE–4, at the beginning of your comments. You may also submit comments through the Internet at http://www.regulations.gov. You may review the public docket containing the proposal, any comments received, and any final disposition in person in the Dockets Office between 9:00 a.m. and 5:00 p.m., Monday through Friday, except Federal holidays. The Docket Office (telephone 1–800– 647–5527), is on the ground floor of the building at the above address. FOR FURTHER INFORMATION CONTACT: Scott Enander, Central Service Center, Operations Support Group, Federal Aviation Administration, Southwest Region, 2601 Meacham Blvd., Fort Worth, TX 76137; telephone: (817) 321– 7716. SUPPLEMENTARY INFORMATION: DATES: Comments Invited Interested parties are invited to participate in this proposed rulemaking by submitting such written data, views, or arguments, as they may desire. Comments that provide the factual basis supporting the views and suggestions presented are particularly helpful in developing reasoned regulatory decisions on the proposal. Comments are specifically invited on the overall regulatory, aeronautical, economic, environmental, and energy-related aspects of the proposal. Communications should identify both docket numbers and be submitted in triplicate to the address listed above. Commenters wishing the FAA to acknowledge receipt of their comments on this notice must submit with those comments a self-addressed, stamped postcard on which the following statement is made: ‘‘Comments to Docket No. FAA–2013–0255/Airspace Docket No. 13–ACE–4.’’ The postcard will be date/time stamped and returned to the commenter. Availability of NPRMs An electronic copy of this document may be downloaded through the Internet at http://www.regulations.gov. Recently published rulemaking documents can also be accessed through the FAA’s Web page at http:// www.faa.gov/airports_airtraffic/ E:\FR\FM\05AUP1.SGM 05AUP1

Agencies

[Federal Register Volume 78, Number 150 (Monday, August 5, 2013)]
[Proposed Rules]
[Pages 47235-47237]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2013-18794]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2013-0475; Directorate Identifier 13-NE-18-AD]
RIN 2120-AA64


Airworthiness Directives; General Electric Company 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 
certain

[[Page 47236]]

General Electric Company (GE) model GEnx-2B67 and GEnx-2B67B turbofan 
engines. This proposed AD was prompted by the original equipment 
manufacturer's disclosure that certain critical rotating life-limited 
parts (LLPs) used in Boeing 747-8 flight tests had consumed more cyclic 
life than they would have in revenue flight cycles. These parts were 
then installed into engines and introduced into revenue service without 
adjustment to remaining cyclic life. This proposed AD would require a 
one-time adjustment to the cycle counts of those LLPs to account for 
the additional low cycle fatigue (LCF) life consumed during flight 
tests. We are proposing this AD to prevent the failure of critical 
rotating LLPs, uncontained engine failure, and damage to the airplane.

DATES: We must receive comments on this proposed AD by October 4, 2013.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
     Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC 20590.
     Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    For service information identified in this proposed AD, contact 
General Electric Company, GE Aviation, Room 285, One Neumann Way, 
Cincinnati, OH; phone: 513-552-3272; email: geae.aoc@ge.com. You may 
view this service information at the FAA, Engine & Propeller 
Directorate, 12 New England Executive Park, Burlington, MA. For 
information on the availability of this material at the FAA, call 781-
238-7125.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://www.regulations.gov; or in person at the Docket Management Facility 
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 Office (phone: 800-647-5527) is in the ADDRESSES 
section. Comments will be available in the AD docket shortly after 
receipt.

FOR FURTHER INFORMATION CONTACT: Jason Yang, Aerospace Engineer, Engine 
Certification Office, FAA, Engine & Propeller Directorate, 12 New 
England Executive Park, Burlington, MA 01803; phone: 781-238-7747; fax: 
781-238-7199; email: Jason.Yang@faa.gov.

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposal. Send your comments to an address listed 
under the ADDRESSES section. Include ``Docket No. FAA-2013-0475; 
Directorate Identifier 13-NE-18-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 because of those comments.
    We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this proposed AD.

Discussion

    We propose to adopt a new AD for certain GE model GEnx-2B67 and 
GEnx-2B67B turbofan engines. This proposed AD was prompted by GE's 
disclosure that certain critical rotating LLPs used in Boeing 747-8 
flight tests had consumed more cyclic life than they would have in 
revenue flight cycles. This additional life usage was due to multiple 
changes in the engine rotor speed and thermal environment that are not 
performed in a typical revenue service flight. These parts were then 
installed into engines and introduced into revenue service without 
adjustment to remaining cyclic life. This proposed AD would require a 
one-time adjustment to the cycle counts of those LLPs to account for 
the additional LCF life consumed. This condition, if not corrected, 
could result in the failure of critical rotating LLPs, uncontained 
engine failure, and damage to the airplane.

Relevant Service Information

    We reviewed GE Service Bulletin (SB) No. 72-0116, Revision 1, dated 
April 23, 2013. The SB lists each affected critical rotating LLP by 
part number and serial number and prescribes the exact number of cycles 
to add to the cycle count for each affected LLP as a one-time 
adjustment. The list is extensive.

FAA's Determination

    We are proposing this AD because we evaluated all the relevant 
information and determined the unsafe condition described previously is 
likely to exist or develop in other products of these same type 
designs.

Proposed AD Requirements

    This proposed AD would require a one-time adjustment to the cycle 
counts of certain critical rotating LLPs.

Costs of Compliance

    We estimate that this proposed AD affects 4 engines installed on 
airplanes of U.S. registry. We also estimate that it would take about 1 
hour per engine to comply with this proposed AD. The average labor rate 
is $85 per hour. The prorated cost of required parts would be about 
$50,000 per engine. Based on these figures, we estimate the cost of the 
proposed AD to U.S. operators to be $200,340.

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

[[Page 47237]]

Procedures (44 FR 11034, February 26, 1979),
    (3) Will not affect intrastate aviation in Alaska to the extent 
that it justifies making a regulatory distinction, and
    (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.

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

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):

General Electric Company: Docket No. FAA-2013-0475; Directorate 
Identifier 2013-NE-18-AD.

(a) Comments Due Date

    We must receive comments by October 4, 2013.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to certain serial number General Electric 
Company (GE) model GEnx-2B67 and GEnx-2B67B turbofan engines. The 
affected GEnx-2B serial numbers are: 959-102 through 959-104; 959-
107; 959-110 through 959-111; 959-113 through 959-118; 959-121; 959-
124 through 959-133; 959-159 through 959-161; 959-164; 959-176; and 
959-191.

(d) Unsafe Condition

    This AD was prompted by GE's report that certain critical 
rotating life-limited parts (LLPs) used in Boeing 747-8 flight tests 
had consumed more cyclic life than they would have in revenue 
service flights. These parts were then installed into engines and 
introduced into revenue service without adjustment to remaining 
cyclic life. We are issuing this AD to prevent the failure of 
critical rotating LLPs, uncontained engine failure, and damage to 
the airplane.

(e) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(f) Adjust the Cycle Counts of Certain Critical Rotating LLPs

    Within 30 days after the effective date of this AD, perform a 
one-time adjustment to the cycle count of each part identified in 
paragraph 4, Appendix A, of GE Service Bulletin (SB) No. 72-0116, 
Revision 1, dated April 23, 2013.

(g) Alternative Methods of Compliance (AMOCs)

    The Manager, Engine Certification Office, FAA, may approve AMOCs 
for this AD. Use the procedures found in 14 CFR 39.19 to make your 
request.

(h) Related Information

    (1) For more information about this AD, contact Jason Yang, 
Aerospace Engineer, Engine Certification Office, FAA, Engine & 
Propeller Directorate, 12 New England Executive Park, Burlington, MA 
01803; phone: 781-238-7747; fax: 781-238-7199; email: 
Jason.Yang@faa.gov.
    (2) Refer to GE SB No. 72-0116, Revision 1, dated April 23, 2013 
for related information.
    (3) For service information identified in this proposed AD, 
contact General Electric Company, GE Aviation, Room 285, One Neumann 
Way, Cincinnati, OH; phone: 513-552-3272; email: geae.aoc@ge.com. 
You may view this service information at the FAA, Engine & Propeller 
Directorate, 12 New England Executive Park, Burlington, MA. For 
information on the availability of this material at the FAA, call 
781-238-7125.

    Issued in Burlington, Massachusetts, on July 25, 2013.
Frank P. Paskiewicz,
Acting Director, Aircraft Certification Service.
[FR Doc. 2013-18794 Filed 8-2-13; 8:45 am]
BILLING CODE 4910-13-P