Airworthiness Directives; Turbomeca S.A. Turboshaft Engines, 68697-68699 [2013-27185]

Download as PDF Federal Register / Vol. 78, No. 221 / Friday, November 15, 2013 / Rules and Regulations in accordance with the procedures specified in paragraph (j) of this AD. (i) Optional Terminating Action Replacing the titanium seat track bolts with CRES bolts on both the left and right sides of buttock lines 24.75 and 45.50 at station 727B, and installing a new splice strap P/N 146A5342–26, in accordance with the Accomplishment Instructions of Boeing Special Attention Service Bulletin 737–53– 1296, dated January 11, 2011, terminates the repetitive inspections required by paragraph (h) of this AD. Note 1 to paragraph (i) of this AD: Boeing Special Attention Service Bulletin 737–53– 1296, dated January 11, 2011, contains an error in Step 1, ‘‘Move,’’ of Figure 10, Sheet 5 of 7; and in Step 1, ‘‘Move,’’ of Figure 12, Sheet 5 of 7. The splice strap needs to be centered with left buttock line 45.50 and right buttock line 45.50, respectively— not left buttock line 24.75, as stated in that service bulletin. (j) Alternative Methods of Compliance (AMOCs) (1) The Manager, Seattle Aircraft Certification Office (ACO), 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 ACO, send it to the attention of the person identified in paragraph (k) of this AD. Information may be emailed to: 9-ANM-Seattle-ACO-AMOCRequests@faa.gov. (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) An AMOC that provides an acceptable level of safety may be used for any repair required by this AD if it is approved by Boeing Commercial Airplanes Organization Designation Authorization (ODA) that has been authorized by the Manager, Seattle ACO, to make those findings. For a repair method to be approved, the repair must meet the certification basis of the airplane, and the approval must specifically refer to this AD. (k) Related Information For more information about this AD, contact Sarah Piccola, Aerospace Engineer, Cabin Safety and Environmental Systems Branch, ANM–150S, FAA, Seattle Aircraft Certification Office (ACO), 1601 Lind Avenue SW., Renton, WA 98057–3356; phone: 425– 917–6483; fax: 425–917–6590; email: sarah.piccola@faa.gov. emcdonald on DSK67QTVN1PROD with RULES (l) 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. VerDate Mar<15>2010 19:51 Nov 14, 2013 Jkt 232001 (i) Boeing Special Attention Service Bulletin 737–53–1296, dated January 11, 2011. (ii) Reserved. (3) For service information identified in this AD, contact Boeing Commercial Airplanes, Attention: Data & Services Management, P. O. Box 3707, MC 2H–65, Seattle, Washington 98124–2207; telephone 206–544–5000, extension 1; fax 206–766– 5680; Internet https:// www.myboeingfleet.com. (4) You may view this service information at FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, Washington. For information on the availability of this material at the FAA, call 425–227–1221. (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: https:// www.archives.gov/federal-register/cfr/ibrlocations.html. Issued in Renton, Washington, on November 4, 2013. Stephen P. Boyd, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2013–27091 Filed 11–14–13; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2012–0940; Directorate Identifier 2012–NE–26–AD; Amendment 39– 17654; AD 2013–22–22] RIN 2120–AA64 Airworthiness Directives; Turbomeca S.A. Turboshaft Engines Federal Aviation Administration (FAA), DOT. ACTION: Final rule. AGENCY: We are superseding airworthiness directive (AD) 2013–01– 07 for all Turbomeca S.A. Arriel 2D turboshaft engines. AD 2013–01–07 required replacing the hydromechanical metering unit (HMU) at a reduced life. This AD maintains that requirement and also requires conducting inspections of the HMU. This AD was prompted by further cases of deterioration of HMU rotating components. We are issuing this AD to prevent an uncommanded inflight shutdown of the engine and possible loss of the helicopter. DATES: This AD is effective December 20, 2013. ADDRESSES: For service information identified in this AD, contact Turbomeca, 40220 Tarnos, France; SUMMARY: PO 00000 Frm 00011 Fmt 4700 Sfmt 4700 68697 phone: 33 (0)5 59 74 40 00; telex: 570 042; fax: 33 (0)5 59 74 45 15. 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 https:// 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 AD, the mandatory continuing airworthiness information (MCAI), the regulatory evaluation, any comments received, and other information. The address for the Docket Office (phone: 800–647–5527) is provided in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Frederick Zink, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781–238–7779; fax: 781–238– 7199; email: frederick.zink@faa.gov. SUPPLEMENTARY INFORMATION: Discussion We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to supersede AD 2013–01–07, Amendment 39–17321 (78 FR 6725, January 31, 2013), (‘‘AD 2013–01–07’’). AD 2013–01–07 applied to the specified products. The NPRM published in the Federal Register on June 7, 2013 (78 FR 34284). The NPRM proposed to continue to require replacing the HMU at a reduced life. The NPRM also proposed to require inspections of the HMU. Comments We gave the public the opportunity to participate in developing this AD. We received no comments on the NPRM (78 FR 34284, June 7, 2013). Conclusion We reviewed the relevant data and determined that air safety and the public interest require adopting this AD as proposed except for the following editorial changes. We changed paragraphs (e)(1)(iv) and (e)(2)(iv). Paragraph (e)(1)(iv) now reads, ‘‘Guidance on replacing the complete sleeve and inspecting the complete sleeve female splines, and HP and LP male splines, can be found in Turbomeca Technical Instruction No. 292 73 2847.’’ E:\FR\FM\15NOR1.SGM 15NOR1 68698 Federal Register / Vol. 78, No. 221 / Friday, November 15, 2013 / Rules and Regulations Paragraph (e)(2)(iv) now reads, ‘‘Guidance for completing the requirements of paragraph (e)(2) can be found in Turbomeca S.A. Alert Mandatory Service Bulletin (MSB) No. A292 73 2847.’’ We changed paragraph (f) to provide credit for initial replacements specified in paragraph (e) of this AD. We have determined that these minor changes: • Are consistent with the intent that was proposed in the NPRM (78 FR 32484, June 7, 2013) for correcting the unsafe condition; and • Do not add any additional burden upon the public than was already proposed in the NPRM (78 FR 32484, June 7, 2013). Costs of Compliance We estimate that this AD affects 56 Arriel 2D turboshaft engines installed on helicopters of U.S. registry. We also estimate that it will take about two hours per engine to comply with this AD. The average labor rate is $85 per hour. Required parts cost about $14,400 per engine. Based on these figures, we estimate the total cost of this AD to U.S. operators is $815,920. emcdonald on DSK67QTVN1PROD with RULES 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: VerDate Mar<15>2010 19:51 Nov 14, 2013 Jkt 232001 (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 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. 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 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 removing airworthiness directive (AD) 2013–01–07, Amendment 39–17321 (78 FR 6725, January 31, 2013), and adding the following new AD: ■ 2013–22–22 Turbomeca S.A.: Amendment 39–17654; Docket No. FAA–2012–0940; Directorate Identifier 2012–NE–26–AD. (a) Effective Date This AD is effective December 20, 2013. (b) Affected ADs This AD supersedes AD 2013–01–07, Amendment 39–17321 (78 FR 6725, January 31, 2013). (c) Applicability This AD applies to all Turbomeca S.A. Arriel 2D turboshaft engines. (d) Unsafe Condition This AD was prompted by further cases of deterioration of hydromechanical metering unit (HMU) rotating components. We are issuing this AD to prevent an uncommanded in-flight shutdown of the engine and possible loss of the helicopter. (e) Compliance Comply with this AD within the compliance times specified, unless already done. (1) Replace inter-pump complete sleeve, and visually inspect the complete sleeve female splines and HMU high-pressure (HP) pump and low-pressure (LP) pump male splines for corrosion, scaling, cracks, and wear, at the following: PO 00000 Frm 00012 Fmt 4700 Sfmt 4700 (i) Before exceeding 400 HMU operating hours since new if the HMU has 375 or fewer operating hours on the effective date of this AD; or (ii) Within 25 HMU operating hours if the HMU has more than 375 operating hours on the effective date of this AD. (iii) Thereafter, at intervals not to exceed 400 HMU operating hours. (iv) Guidance on replacing the complete sleeve and inspecting the complete sleeve female splines, and HP and LP male splines, can be found in Turbomeca Technical Instruction No. 292 73 2847. (v) If the HMU does not pass the initial or repetitive visual inspections required by paragraph (e)(1) of this AD, then before the next flight, replace the affected HMU with an HMU eligible for installation. (2) Replace the rotating components of the HP and LP pumps, including the complete sleeve, or replace the HMU with an HMU eligible for installation at the following: (i) Before exceeding 800 HMU operating hours since new; or (ii) Within 800 HMU operating hours since last replacement of LP and HP fuel pumps rotating components; whichever occurs later. (iii) Thereafter, replace the LP and HP fuel pump rotating components or the HMU within every 800 HMU operating hours. (iv) Guidance for completing the requirements of paragraph (e)(2) can be found in Turbomeca S.A. Alert Mandatory Service Bulletin (MSB) No. A292 73 2847. (f) Credit for Previous Actions If before the effective date of this AD, you complied with Turbomeca S.A. Alert MSB No. A292 73 2847, Version A, dated May 29, 2012, you met the initial replacement requirements specified in paragraph (e) of this AD. However, you must still comply with the repetitive inspection requirements of this AD. (g) Installation Prohibition After the effective date of this AD, do not install any HMU onto any engine, or install any engine onto any helicopter, unless the HMU is in compliance with this AD. (h) Alternative Methods of Compliance (AMOCs) The Manager, Engine Certification Office, may approve AMOCs for this AD. Use the procedures found in 14 CFR 39.19 to make your request. (i) Related Information (1) For more information about this AD, contact Frederick Zink, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781–238–7779; fax: 781–238–7199; email: frederick.zink@faa.gov. (2) Refer to MCAI European Aviation Safety Agency AD 2013–0079, dated March 22, 2013, for more information. You may examine the AD on the Internet at https:// www.regulations.gov/ #!documentDetail;D=FAA-2012-0940-0006. (3) Turbomeca S.A. Alert MSB No. A292 73 2847, Turbomeca Technical Instruction No. 292 73 2847, and Turbomeca Maintenance Manual Task 73–23–00–802–A01, which are E:\FR\FM\15NOR1.SGM 15NOR1 Federal Register / Vol. 78, No. 221 / Friday, November 15, 2013 / Rules and Regulations not incorporated by reference in this AD, pertain to the subject of this AD and can be obtained from Turbomeca, using the contact information in paragraph (i)(4) of this AD. (4) For Turbomeca service information identified in this AD, contact Turbomeca, 40220 Tarnos, France; phone: 33 (0)5 59 74 40 00; telex: 570 042; fax: 33 (0)5 59 74 45 15. (j) Material Incorporated by Reference None. Correction to Final Rule Issued in Burlington, Massachusetts, on October 24, 2013. Colleen M. D’Alessandro, Assistant Directorate Manager, Engine & Propeller Directorate, Aircraft Certification Service. [FR Doc. 2013–27185 Filed 11–14–13; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 [Docket FAA No. FAA–2013–0530; Airspace Docket No. 13–AWP–9] Establishment of Class E Airspace; Battle Mountain, NV This action corrects a final rule published in the Federal Register of September 23, 2013, that establishes Class E airspace at the Battle Mountain VHF Omni-Directional Radio Range Tactical Air Navigational Aid (VORTAC) navigation aid, Battle Mountain, NV. A favorable comment from the National Business Aviation Association (NBAA) was received in the public Docket but was not referenced in the Final Rule. DATES: Effective Date: 0901 UTC, December 12, 2013. The Director of the Federal Register approves this incorporation by reference action under 1 CFR Part 51, subject to the annual revision of FAA Order 7400.9 and publication of conforming amendments. FOR FURTHER INFORMATION CONTACT: Eldon Taylor, Federal Aviation Administration, Operations Support Group, Western Service Center, 1601 Lind Avenue SW., Renton, WA 98057; telephone (425) 203–4537. SUPPLEMENTARY INFORMATION: emcdonald on DSK67QTVN1PROD with RULES History The FAA published a final rule in the Federal Register establishing Class E airspace at the Battle Mountain VORTAC navigation aid, Battle Mountain, NV (78 FR 58159, September Jkt 232001 Issued in Seattle, Washington, on: November 6, 2013. Clark Desing, Manager, Operations Support Group, Western Service Center. BILLING CODE 4910–13–P SUMMARY: 19:51 Nov 14, 2013 Accordingly, pursuant to the authority delegated to me, the description under the History heading, as published in the Federal Register on September 23, 2013 (78 FR 58159), Airspace Docket No. 13–AWP–9, FR Doc. 2013–58159, is corrected as follows: On page 58160, column 1, line 2, remove ‘‘No comments were received.’’, and add in their place ‘‘One comment was received from the National Business Aviation Association (NBAA) supporting the establishment of Class E en route airspace.’’. [FR Doc. 2013–27217 Filed 11–14–13; 8:45 am] Federal Aviation Administration (FAA), DOT. ACTION: Final rule; correction. AGENCY: VerDate Mar<15>2010 23, 2013). The FAA received a comment in support of the rule from the NBAA for inclusion in FAA Docket No. FAA– 2013–0530 prior to the closing of the comment period. However, the preamble incorrectly references that there were no comments to the proposal. This action corrects that statement. DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 95 [Docket No. 30931; Amdt. No. 510] IFR Altitudes; Miscellaneous Amendments Federal Aviation Administration (FAA), DOT. ACTION: Final rule AGENCY: This amendment adopts miscellaneous amendments to the required IFR (instrument flight rules) altitudes and changeover points for certain Federal airways, jet routes, or direct routes for which a minimum or maximum en route authorized IFR altitude is prescribed. This regulatory action is needed because of changes occurring in the National Airspace System. These changes are designed to provide for the safe and efficient use of the navigable airspace under instrument conditions in the affected areas. DATES: Effective 0901 UTC, December 12, 2013. FOR FURTHER INFORMATION CONTACT: Harry Hodges, Flight Procedure Standards Branch (AMCAFS–420), Flight Technologies and Programs SUMMARY: PO 00000 Frm 00013 Fmt 4700 Sfmt 4700 68699 Division, Flight Standards Service, Federal Aviation Administration, Mike Monroney Aeronautical Center, 6500 South MacArthur Blvd., Oklahoma City, OK 73169 (Mail Address: P.O. Box 25082 Oklahoma City, OK 73125) telephone: (405) 954–4164. SUPPLEMENTARY INFORMATION: This amendment to part 95 of the Federal Aviation Regulations (14 CFR part 95) amends, suspends, or revokes IFR altitudes governing the operation of all aircraft in flight over a specified route or any portion of that route, as well as the changeover points (COPs) for Federal airways, jet routes, or direct routes as prescribed in part 95. The Rule The specified IFR altitudes, when used in conjunction with the prescribed changeover points for those routes, ensure navigation aid coverage that is adequate for safe flight operations and free of frequency interference. The reasons and circumstances that create the need for this amendment involve matters of flight safety and operational efficiency in the National Airspace System, are related to published aeronautical charts that are essential to the user, and provide for the safe and efficient use of the navigable airspace. In addition, those various reasons or circumstances require making this amendment effective before the next scheduled charting and publication date of the flight information to assure its timely availability to the user. The effective date of this amendment reflects those considerations. In view of the close and immediate relationship between these regulatory changes and safety in air commerce, I find that notice and public procedure before adopting this amendment are impracticable and contrary to the public interest and that good cause exists for making the amendment effective in less than 30 days. Conclusion The FAA has determined that this regulation only involves an established body of technical regulations for which frequent and routine amendments are necessary to keep them operationally current. It, therefore—(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) does not warrant preparation of a regulatory evaluation as the anticipated impact is so minimal. For the same reason, the FAA certifies that this amendment will not have a significant economic impact on a substantial E:\FR\FM\15NOR1.SGM 15NOR1

Agencies

[Federal Register Volume 78, Number 221 (Friday, November 15, 2013)]
[Rules and Regulations]
[Pages 68697-68699]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2013-27185]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2012-0940; Directorate Identifier 2012-NE-26-AD; 
Amendment 39-17654; AD 2013-22-22]
RIN 2120-AA64


Airworthiness Directives; Turbomeca S.A. Turboshaft Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: We are superseding airworthiness directive (AD) 2013-01-07 for 
all Turbomeca S.A. Arriel 2D turboshaft engines. AD 2013-01-07 required 
replacing the hydromechanical metering unit (HMU) at a reduced life. 
This AD maintains that requirement and also requires conducting 
inspections of the HMU. This AD was prompted by further cases of 
deterioration of HMU rotating components. We are issuing this AD to 
prevent an uncommanded in-flight shutdown of the engine and possible 
loss of the helicopter.

DATES: This AD is effective December 20, 2013.

ADDRESSES: For service information identified in this AD, contact 
Turbomeca, 40220 Tarnos, France; phone: 33 (0)5 59 74 40 00; telex: 570 
042; fax: 33 (0)5 59 74 45 15. 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 https://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 AD, the mandatory continuing 
airworthiness information (MCAI), the regulatory evaluation, any 
comments received, and other information. The address for the Docket 
Office (phone: 800-647-5527) is provided in the ADDRESSES section. 
Comments will be available in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Frederick Zink, Aerospace Engineer, 
Engine Certification Office, FAA, Engine & Propeller Directorate, 12 
New England Executive Park, Burlington, MA 01803; phone: 781-238-7779; 
fax: 781-238-7199; email: frederick.zink@faa.gov.

SUPPLEMENTARY INFORMATION: 

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 to supersede AD 2013-01-07, Amendment 39-17321 (78 FR 6725, 
January 31, 2013), (``AD 2013-01-07''). AD 2013-01-07 applied to the 
specified products. The NPRM published in the Federal Register on June 
7, 2013 (78 FR 34284). The NPRM proposed to continue to require 
replacing the HMU at a reduced life. The NPRM also proposed to require 
inspections of the HMU.

Comments

    We gave the public the opportunity to participate in developing 
this AD. We received no comments on the NPRM (78 FR 34284, June 7, 
2013).

Conclusion

    We reviewed the relevant data and determined that air safety and 
the public interest require adopting this AD as proposed except for the 
following editorial changes. We changed paragraphs (e)(1)(iv) and 
(e)(2)(iv).
    Paragraph (e)(1)(iv) now reads, ``Guidance on replacing the 
complete sleeve and inspecting the complete sleeve female splines, and 
HP and LP male splines, can be found in Turbomeca Technical Instruction 
No. 292 73 2847.''

[[Page 68698]]

    Paragraph (e)(2)(iv) now reads, ``Guidance for completing the 
requirements of paragraph (e)(2) can be found in Turbomeca S.A. Alert 
Mandatory Service Bulletin (MSB) No. A292 73 2847.''
    We changed paragraph (f) to provide credit for initial replacements 
specified in paragraph (e) of this AD.
    We have determined that these minor changes:
     Are consistent with the intent that was proposed in the 
NPRM (78 FR 32484, June 7, 2013) for correcting the unsafe condition; 
and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM (78 FR 32484, June 7, 2013).

Costs of Compliance

    We estimate that this AD affects 56 Arriel 2D turboshaft engines 
installed on helicopters of U.S. registry. We also estimate that it 
will take about two hours per engine to comply with this AD. The 
average labor rate is $85 per hour. Required parts cost about $14,400 
per engine. Based on these figures, we estimate the total cost of this 
AD to U.S. operators is $815,920.

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),
    (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.

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 removing airworthiness directive (AD) 
2013-01-07, Amendment 39-17321 (78 FR 6725, January 31, 2013), and 
adding the following new AD:

2013-22-22 Turbomeca S.A.: Amendment 39-17654; Docket No. FAA-2012-
0940; Directorate Identifier 2012-NE-26-AD.

(a) Effective Date

    This AD is effective December 20, 2013.

(b) Affected ADs

    This AD supersedes AD 2013-01-07, Amendment 39-17321 (78 FR 
6725, January 31, 2013).

(c) Applicability

    This AD applies to all Turbomeca S.A. Arriel 2D turboshaft 
engines.

(d) Unsafe Condition

    This AD was prompted by further cases of deterioration of 
hydromechanical metering unit (HMU) rotating components. We are 
issuing this AD to prevent an uncommanded in-flight shutdown of the 
engine and possible loss of the helicopter.

(e) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.
    (1) Replace inter-pump complete sleeve, and visually inspect the 
complete sleeve female splines and HMU high-pressure (HP) pump and 
low-pressure (LP) pump male splines for corrosion, scaling, cracks, 
and wear, at the following:
    (i) Before exceeding 400 HMU operating hours since new if the 
HMU has 375 or fewer operating hours on the effective date of this 
AD; or
    (ii) Within 25 HMU operating hours if the HMU has more than 375 
operating hours on the effective date of this AD.
    (iii) Thereafter, at intervals not to exceed 400 HMU operating 
hours.
    (iv) Guidance on replacing the complete sleeve and inspecting 
the complete sleeve female splines, and HP and LP male splines, can 
be found in Turbomeca Technical Instruction No. 292 73 2847.
    (v) If the HMU does not pass the initial or repetitive visual 
inspections required by paragraph (e)(1) of this AD, then before the 
next flight, replace the affected HMU with an HMU eligible for 
installation.
    (2) Replace the rotating components of the HP and LP pumps, 
including the complete sleeve, or replace the HMU with an HMU 
eligible for installation at the following:
    (i) Before exceeding 800 HMU operating hours since new; or
    (ii) Within 800 HMU operating hours since last replacement of LP 
and HP fuel pumps rotating components; whichever occurs later.
    (iii) Thereafter, replace the LP and HP fuel pump rotating 
components or the HMU within every 800 HMU operating hours.
    (iv) Guidance for completing the requirements of paragraph 
(e)(2) can be found in Turbomeca S.A. Alert Mandatory Service 
Bulletin (MSB) No. A292 73 2847.

(f) Credit for Previous Actions

    If before the effective date of this AD, you complied with 
Turbomeca S.A. Alert MSB No. A292 73 2847, Version A, dated May 29, 
2012, you met the initial replacement requirements specified in 
paragraph (e) of this AD. However, you must still comply with the 
repetitive inspection requirements of this AD.

(g) Installation Prohibition

    After the effective date of this AD, do not install any HMU onto 
any engine, or install any engine onto any helicopter, unless the 
HMU is in compliance with this AD.

(h) Alternative Methods of Compliance (AMOCs)

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

(i) Related Information

    (1) For more information about this AD, contact Frederick Zink, 
Aerospace Engineer, Engine Certification Office, FAA, Engine & 
Propeller Directorate, 12 New England Executive Park, Burlington, MA 
01803; phone: 781-238-7779; fax: 781-238-7199; email: 
frederick.zink@faa.gov.
    (2) Refer to MCAI European Aviation Safety Agency AD 2013-0079, 
dated March 22, 2013, for more information. You may examine the AD 
on the Internet at https://www.regulations.gov/#!documentDetail;D=FAA-2012-0940-0006.
    (3) Turbomeca S.A. Alert MSB No. A292 73 2847, Turbomeca 
Technical Instruction No. 292 73 2847, and Turbomeca Maintenance 
Manual Task 73-23-00-802-A01, which are

[[Page 68699]]

not incorporated by reference in this AD, pertain to the subject of 
this AD and can be obtained from Turbomeca, using the contact 
information in paragraph (i)(4) of this AD.
    (4) For Turbomeca service information identified in this AD, 
contact Turbomeca, 40220 Tarnos, France; phone: 33 (0)5 59 74 40 00; 
telex: 570 042; fax: 33 (0)5 59 74 45 15.

(j) Material Incorporated by Reference

    None.

    Issued in Burlington, Massachusetts, on October 24, 2013.
Colleen M. D'Alessandro,
Assistant Directorate Manager, Engine & Propeller Directorate, Aircraft 
Certification Service.
[FR Doc. 2013-27185 Filed 11-14-13; 8:45 am]
BILLING CODE 4910-13-P

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