83_FR_39104 83 FR 38951 - Airworthiness Directives; Safran Helicopter Engines, S.A., Turboshaft Engines

83 FR 38951 - Airworthiness Directives; Safran Helicopter Engines, S.A., Turboshaft Engines

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 83, Issue 153 (August 8, 2018)

Page Range38951-38953
FR Document2018-16652

We are superseding Airworthiness Directive (AD) 2012-03-11 for all Safran Helicopter Engines, S.A., Arriel 2B and 2B1 turboshaft engines. AD 2012-03-11 required checking the transmissible torque between the low-pressure (LP) pump impeller and the high-pressure (HP) pump shaft on the HP/LP pump and metering valve assembly, hereafter referred to as the hydro-mechanical metering unit (HMU). Since we issued AD 2012-03-11, the manufacturer determined that incorporating Modification TU 178 is a more effective method to reduce the risk of uncoupling between the LP fuel pump impeller and the HP fuel pump shaft than the prior Modification TU 147. This AD requires inspection and possible replacement of the HMU. This AD was prompted by three cases of uncoupling of the HMU LP fuel pump impeller and the HP fuel pump shaft since AD 2012-03-11 was issued. We are issuing this AD to address the unsafe condition on these products.

Federal Register, Volume 83 Issue 153 (Wednesday, August 8, 2018)
[Federal Register Volume 83, Number 153 (Wednesday, August 8, 2018)]
[Rules and Regulations]
[Pages 38951-38953]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-16652]



========================================================================
Rules and Regulations
                                                Federal Register
________________________________________________________________________

This section of the FEDERAL REGISTER contains regulatory documents 
having general applicability and legal effect, most of which are keyed 
to and codified in the Code of Federal Regulations, which is published 
under 50 titles pursuant to 44 U.S.C. 1510.

The Code of Federal Regulations is sold by the Superintendent of Documents. 

========================================================================


Federal Register / Vol. 83, No. 153 / Wednesday, August 8, 2018 / 
Rules and Regulations

[[Page 38951]]



DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2009-0889; Product Identifier 2009-NE-35-AD; Amendment 
39-19305; AD 2018-12-01]
RIN 2120-AA64


Airworthiness Directives; Safran Helicopter Engines, S.A., 
Turboshaft Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: We are superseding Airworthiness Directive (AD) 2012-03-11 for 
all Safran Helicopter Engines, S.A., Arriel 2B and 2B1 turboshaft 
engines. AD 2012-03-11 required checking the transmissible torque 
between the low-pressure (LP) pump impeller and the high-pressure (HP) 
pump shaft on the HP/LP pump and metering valve assembly, hereafter 
referred to as the hydro-mechanical metering unit (HMU). Since we 
issued AD 2012-03-11, the manufacturer determined that incorporating 
Modification TU 178 is a more effective method to reduce the risk of 
uncoupling between the LP fuel pump impeller and the HP fuel pump shaft 
than the prior Modification TU 147. This AD requires inspection and 
possible replacement of the HMU. This AD was prompted by three cases of 
uncoupling of the HMU LP fuel pump impeller and the HP fuel pump shaft 
since AD 2012-03-11 was issued. We are issuing this AD to address the 
unsafe condition on these products.

DATES: This AD is effective September 12, 2018.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of March 11, 
2010 (75 FR 5689, February 4, 2010).
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of March 20, 
2012 (77 FR 8092, February 14, 2012).

ADDRESSES: For service information identified in this final rule, 
contact Safran Helicopter Engines, S.A., 40220 Tarnos, France; phone: 
(33) 05 59 74 40 00; fax: (33) 05 59 74 45 15. 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-2009-0889.

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-2009-
0889; 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 mandatory continuing airworthiness information, 
regulatory evaluation, any comments received, and other information. 
The address for Docket Operations (phone: 800-647-5527) is Document 
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: John Frost, Aerospace Engineer, ECO 
Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781-
238-7756; fax: 781-238-7199; email: john.frost@faa.gov.

SUPPLEMENTARY INFORMATION: 

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 to supersede AD 2012-03-11, Amendment 39-16953 (77 FR 8092, 
February 14, 2012), (``AD 2012-03-11''). AD 2012-03-11 applied to all 
Safran Helicopter Engines, S.A., Arriel 2B and 2B1 turboshaft engines. 
The NPRM published in the Federal Register on October 6, 2017 (82 FR 
46727). The NPRM was prompted by instances of uncoupling between the LP 
fuel pump impeller and the HP fuel pump shaft. The NPRM proposed to 
require inspection and, depending on the results of the inspection, 
possible replacement of the HMU. The NPRM also proposed to require 
replacement of pre-Modification TU 178 HMUs with an HMU incorporating 
Modification TU 178 within 2,200 engine flight hours or 72 months, 
whichever occurs first, after the effective date of this AD. 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 AD. The following presents the comments received on the NPRM and 
the FAA's response to the comment.

Request To Clarify Reason for AD

    An individual commenter questioned how the new modification in this 
AD is better and different from the actions required by the previous AD 
2012-03-11.
    AD 2012-03-11 required a check of the transmissible torque between 
the LP fuel pump impeller and the HP fuel pump shaft and replacement of 
the HMU if it does not pass the torque check. Since we issued AD 2012-
03-11, Safran Service Bulletin (SB) 292 73 2178, Version A, dated April 
1, 2015 introduced Modification TU 178. This AD accepts Modification TU 
178 as a more robust drive link between the LP fuel pump impeller and 
the HP fuel pump shaft that ensures the LP impeller pump is driven even 
if the link with the drive shaft loosens. This AD requires installation 
of a Modification TU 178 HMU for any HMU that fails the torque sensor 
check and as a mandatory terminating action for the inspections 
required by this AD, as well as purging the fleet of the pre- and post-
TU 147 configuration parts. We did not change this AD.

Clarification to Service Information for Torque Check

    We updated paragraphs (g)(1)(i) and (ii) of this AD to clarify that 
only paragraph 2.A, rather than paragraph 2, in Turbomeca Alert 
Mandatory SB (MSB) A292 73 2830, Version B, dated July 10, 2009, and 
Turbomeca Alert MSB A292 73 2836, Version A, dated August 17, 2010, is 
used to perform the torque check.

[[Page 38952]]

Conclusion

    We reviewed the relevant data, considered the comment received, and 
determined that air safety and the public interest require adopting 
this AD as proposed except for minor editorial changes. We have 
determined that these minor changes:
     Are consistent with the intent that was proposed in the 
NPRM for addressing the unsafe condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM.

Related Service Information Under 1 CFR Part 51

    We reviewed Turbomeca, S.A., Alert MSB A292 73 2830, Version B, 
dated July 10, 2009, and Alert MSB A292 73 2836, Version A, dated 
August 17, 2010. Turbomeca Alert MSB A292 73 2830, Version B, describes 
procedures for inspecting pre-Modification TU 147 HMUs. Turbomeca Alert 
MSB A292 73 2836, Version A, dated August 17, 2010, describes 
procedures for inspecting HMUs that have incorporated Modification TU 
147. 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.

Other Related Service Information

    We reviewed Safran Helicopter Engines MSB 292 73 2178, Version B, 
dated March 23, 2017. Safran Helicopter Engines MSB 292 73 2178, 
Version B, describes HMU improvements that includes a reinforced drive 
link between the LP impeller and HP fuel pump shaft (Modification TU 
178). Safran Helicopter Engines has also issued MSB A292 73 2830, 
Version C; and A292 73 2836, Version B, both dated April 5, 2017, which 
exempt HMUs incorporating Modification TU 178 from the inspections 
previously recommended by Safran Helicopter Engines.

Costs of Compliance

    We estimate that this AD affects 417 engines installed on 
helicopters 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
----------------------------------------------------------------------------------------------------------------
Remove and replace the HP/LP fuel pump  2 work-hours x $85 per           $17,400         $17,570      $7,326,690
 metering unit.                          hour = $170.
----------------------------------------------------------------------------------------------------------------

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

    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, 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) 
2012-03-11, Amendment 39-16953 (77 FR 8092, February 14, 2012), and 
adding the following new AD:

2018-12-01 Safran Helicopter Engines (Type Certificate previously 
held by Turbomeca, S.A.): Amendment 39-19305; Docket No. FAA-2009-
0889; Product Identifier 2009-NE-35-AD.

(a) Effective Date

    This AD is effective September 12, 2018.

(b) Affected ADs

    This AD replaces AD 2012-03-11, Amendment 39-16953 (77 FR 8092, 
February 14, 2012).

(c) Applicability

    This AD applies to Safran Helicopter Engines, S.A., Arriel 2B 
and 2B1 turboshaft engines, except those incorporating Modification 
TU 178.

(d) Subject

    Joint Aircraft System Component (JASC) Code 7300, Engine Fuel 
and Control.

(e) Unsafe Condition

    This AD was prompted by analysis that indicated the modification 
of an engine to incorporate Modification TU 178 provides a more 
effective method than Modification TU

[[Page 38953]]

147 to reduce the risk of uncoupling between the low-pressure (LP) 
fuel pump impeller and the high-pressure (HP) fuel pump shaft of the 
HP/LP pump and hydro-mechanical metering unit (HMU). We are issuing 
this AD to prevent failure of the HMU. The unsafe condition, if not 
corrected, could result in failure of the engine, in-flight 
shutdown, and loss of the helicopter.

(f) Compliance

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

(g) Required Actions

    (1) Check the transmissible torque between the LP fuel pump 
impeller and the HP fuel pump shaft as follows:
    (i) For pre-Modification TU 147 HMUs, check the torque before 
accumulating 500 engine flight hours (FHs) since March 11, 2010 or 
before the next flight after the effective date of this AD, 
whichever occurs later. Use Paragraph 2.A. of Turbomeca Alert 
Mandatory Service Bulletin (MSB) A292 73 2830, Version B, dated July 
10, 2009 to do the check.
    (ii) For HMUs that incorporated Modification TU 147 on or before 
March 31, 2010, and those HMUs not listed in Figure 2 or 3 of 
Turbomeca Alert MSB A292 73 2836, Version A, dated August 17, 2010, 
check the torque before the next flight after the effective date of 
this AD. Use Paragraph 2.A. of Turbomeca Alert MSB A292 73 2836, 
Version A, dated August 17, 2010, to do the check.
    (2) If the HMU does not pass the torque check, replace the HMU 
with a post-Modification TU 178 HMU before the next flight after the 
effective date of this AD.

(h) Mandatory Terminating Action

    Within 2,200 engine FHs or 72 months after the effective date of 
this AD, whichever occurs first, replace any pre-Modification TU 178 
HMU with a post-Modification TU 178 configuration HMU.

(i) Installation Prohibition

    After the effective date of this AD, do not install a pre-
Modification TU 178 HMU on engines incorporating a post-Modification 
TU 178 HMU.

(j) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, ECO 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 (k)(1) of this AD. You may email your 
request to: ANE-AD-AMOC@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.

(k) Related Information

    (1) For more information about this AD, contact John Frost, 
Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, 
Burlington, MA 01803; phone: 781-238-7756; fax: 781-238-7199; email: 
john.frost@faa.gov.
    (2) Refer to European Aviation Safety Agency (EASA) AD 2017-
0102, dated June 13, 2017, for more information. You may examine the 
EASA AD on the internet at http://www.regulations.gov by searching 
for and locating Docket No. FAA-2009-0889.

(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.
    (3) The following service information was approved for IBR on 
March 11, 2010 (75 FR 5689, February 4, 2010).
    (i) Turbomeca Alert Mandatory Service Bulletin (MSB) No. A292 73 
2830, Version B, dated July 10, 2009.
    (ii) Reserved.
    (4) The following service information was approved for IBR on 
March 20, 2012 (77 FR 8092, February 14, 2012).
    (i) Turbomeca Alert MSB No. A292 73 2836, Version A, dated 
August 17, 2010.
    (ii) Reserved.
    (5) For Safran Helicopter Engines, S.A, service information 
identified in this AD, contact Safran Helicopter Engines, S.A., 
40220 Tarnos, France; phone: (33) 05 59 74 40 00; fax: (33) 05 59 74 
45 15.
    (6) 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.
    (7) 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 July 31, 2018.
Robert J. Ganley,
Manager, Engine and Propeller Standards Branch, Aircraft Certification 
Service.
[FR Doc. 2018-16652 Filed 8-7-18; 8:45 am]
 BILLING CODE 4910-13-P



                                                                                                                                                                                          38951

                                           Rules and Regulations                                                                                         Federal Register
                                                                                                                                                         Vol. 83, No. 153

                                                                                                                                                         Wednesday, August 8, 2018



                                           This section of the FEDERAL REGISTER                      The Director of the Federal Register                The NPRM proposed to require
                                           contains regulatory documents having general            approved the incorporation by reference               inspection and, depending on the
                                           applicability and legal effect, most of which           of a certain publication listed in this AD            results of the inspection, possible
                                           are keyed to and codified in the Code of                as of March 20, 2012 (77 FR 8092,                     replacement of the HMU. The NPRM
                                           Federal Regulations, which is published under           February 14, 2012).                                   also proposed to require replacement of
                                           50 titles pursuant to 44 U.S.C. 1510.
                                                                                                   ADDRESSES: For service information                    pre-Modification TU 178 HMUs with an
                                           The Code of Federal Regulations is sold by              identified in this final rule, contact                HMU incorporating Modification TU
                                           the Superintendent of Documents.                        Safran Helicopter Engines, S.A., 40220                178 within 2,200 engine flight hours or
                                                                                                   Tarnos, France; phone: (33) 05 59 74 40               72 months, whichever occurs first, after
                                                                                                   00; fax: (33) 05 59 74 45 15. You may                 the effective date of this AD. We are
                                           DEPARTMENT OF TRANSPORTATION                            view this service information at the                  issuing this AD to address the unsafe
                                                                                                   FAA, Engine and Propeller Standards                   condition on these products.
                                           Federal Aviation Administration                         Branch, 1200 District Avenue,
                                                                                                                                                         Comments
                                                                                                   Burlington, MA 01803. For information
                                           14 CFR Part 39                                          on the availability of this material at the             We gave the public the opportunity to
                                           [Docket No. FAA–2009–0889; Product                      FAA, call 781–238–7759. It is also                    participate in developing this AD. The
                                           Identifier 2009–NE–35–AD; Amendment 39–                 available on the internet at http://                  following presents the comments
                                           19305; AD 2018–12–01]                                   www.regulations.gov by searching for                  received on the NPRM and the FAA’s
                                           RIN 2120–AA64                                           and locating Docket No. FAA–2009–                     response to the comment.
                                                                                                   0889.
                                           Airworthiness Directives; Safran                                                                              Request To Clarify Reason for AD
                                                                                                   Examining the AD Docket
                                           Helicopter Engines, S.A., Turboshaft                                                                            An individual commenter questioned
                                           Engines                                                   You may examine the AD docket on
                                                                                                   the internet at http://                               how the new modification in this AD is
                                           AGENCY:  Federal Aviation                               www.regulations.gov by searching for                  better and different from the actions
                                           Administration (FAA), DOT.                              and locating Docket No. FAA–2009–                     required by the previous AD 2012–03–
                                           ACTION: Final rule.                                     0889; or in person at Docket Operations               11.
                                                                                                   between 9 a.m. and 5 p.m., Monday                       AD 2012–03–11 required a check of
                                           SUMMARY:    We are superseding                          through Friday, except Federal holidays.              the transmissible torque between the LP
                                           Airworthiness Directive (AD) 2012–03–                   The AD docket contains this final rule,               fuel pump impeller and the HP fuel
                                           11 for all Safran Helicopter Engines,                   the mandatory continuing airworthiness                pump shaft and replacement of the
                                           S.A., Arriel 2B and 2B1 turboshaft                      information, regulatory evaluation, any               HMU if it does not pass the torque
                                           engines. AD 2012–03–11 required                         comments received, and other                          check. Since we issued AD 2012–03–11,
                                           checking the transmissible torque                       information. The address for Docket                   Safran Service Bulletin (SB) 292 73
                                           between the low-pressure (LP) pump                      Operations (phone: 800–647–5527) is                   2178, Version A, dated April 1, 2015
                                           impeller and the high-pressure (HP)                     Document Operations, U.S. Department                  introduced Modification TU 178. This
                                           pump shaft on the HP/LP pump and                        of Transportation, Docket Operations,                 AD accepts Modification TU 178 as a
                                           metering valve assembly, hereafter                      M–30, West Building Ground Floor,                     more robust drive link between the LP
                                           referred to as the hydro-mechanical                     Room W12–140, 1200 New Jersey                         fuel pump impeller and the HP fuel
                                           metering unit (HMU). Since we issued                    Avenue SE, Washington, DC 20590.                      pump shaft that ensures the LP impeller
                                           AD 2012–03–11, the manufacturer                         FOR FURTHER INFORMATION CONTACT: John                 pump is driven even if the link with the
                                           determined that incorporating                           Frost, Aerospace Engineer, ECO Branch,                drive shaft loosens. This AD requires
                                           Modification TU 178 is a more effective                 FAA, 1200 District Avenue, Burlington,                installation of a Modification TU 178
                                           method to reduce the risk of uncoupling                 MA 01803; phone: 781–238–7756; fax:                   HMU for any HMU that fails the torque
                                           between the LP fuel pump impeller and                   781–238–7199; email: john.frost@                      sensor check and as a mandatory
                                           the HP fuel pump shaft than the prior                   faa.gov.                                              terminating action for the inspections
                                           Modification TU 147. This AD requires                                                                         required by this AD, as well as purging
                                                                                                   SUPPLEMENTARY INFORMATION:
                                           inspection and possible replacement of                                                                        the fleet of the pre- and post-TU 147
                                           the HMU. This AD was prompted by                        Discussion                                            configuration parts. We did not change
                                           three cases of uncoupling of the HMU                      We issued a notice of proposed                      this AD.
                                           LP fuel pump impeller and the HP fuel                   rulemaking (NPRM) to amend 14 CFR
                                           pump shaft since AD 2012–03–11 was                                                                            Clarification to Service Information for
                                                                                                   part 39 to supersede AD 2012–03–11,                   Torque Check
                                           issued. We are issuing this AD to                       Amendment 39–16953 (77 FR 8092,
                                           address the unsafe condition on these                   February 14, 2012), (‘‘AD 2012–03–11’’).                 We updated paragraphs (g)(1)(i) and
                                           products.                                               AD 2012–03–11 applied to all Safran                   (ii) of this AD to clarify that only
                                           DATES:  This AD is effective September                  Helicopter Engines, S.A., Arriel 2B and               paragraph 2.A, rather than paragraph 2,
amozie on DSK3GDR082PROD with RULES




                                           12, 2018.                                               2B1 turboshaft engines. The NPRM                      in Turbomeca Alert Mandatory SB
                                             The Director of the Federal Register                  published in the Federal Register on                  (MSB) A292 73 2830, Version B, dated
                                           approved the incorporation by reference                 October 6, 2017 (82 FR 46727). The                    July 10, 2009, and Turbomeca Alert
                                           of a certain publication listed in this AD              NPRM was prompted by instances of                     MSB A292 73 2836, Version A, dated
                                           as of March 11, 2010 (75 FR 5689,                       uncoupling between the LP fuel pump                   August 17, 2010, is used to perform the
                                           February 4, 2010).                                      impeller and the HP fuel pump shaft.                  torque check.


                                      VerDate Sep<11>2014   16:30 Aug 07, 2018   Jkt 244001   PO 00000   Frm 00001   Fmt 4700   Sfmt 4700   E:\FR\FM\08AUR1.SGM   08AUR1


                                           38952            Federal Register / Vol. 83, No. 153 / Wednesday, August 8, 2018 / Rules and Regulations

                                           Conclusion                                              2836, Version A, dated August 17, 2010.               describes HMU improvements that
                                             We reviewed the relevant data,                        Turbomeca Alert MSB A292 73 2830,                     includes a reinforced drive link between
                                           considered the comment received, and                    Version B, describes procedures for                   the LP impeller and HP fuel pump shaft
                                           determined that air safety and the                      inspecting pre-Modification TU 147                    (Modification TU 178). Safran
                                           public interest require adopting this AD                HMUs. Turbomeca Alert MSB A292 73                     Helicopter Engines has also issued MSB
                                           as proposed except for minor editorial                  2836, Version A, dated August 17, 2010,               A292 73 2830, Version C; and A292 73
                                           changes. We have determined that these                  describes procedures for inspecting                   2836, Version B, both dated April 5,
                                           minor changes:                                          HMUs that have incorporated                           2017, which exempt HMUs
                                             • Are consistent with the intent that                 Modification TU 147. This service                     incorporating Modification TU 178 from
                                           was proposed in the NPRM for                            information is reasonably available                   the inspections previously
                                           addressing the unsafe condition; and                    because the interested parties have                   recommended by Safran Helicopter
                                             • Do not add any additional burden                    access to it through their normal course              Engines.
                                           upon the public than was already                        of business or by the means identified
                                           proposed in the NPRM.                                   in the ADDRESSES section.                             Costs of Compliance
                                           Related Service Information Under 1                     Other Related Service Information                       We estimate that this AD affects 417
                                           CFR Part 51                                               We reviewed Safran Helicopter                       engines installed on helicopters of U.S.
                                             We reviewed Turbomeca, S.A., Alert                    Engines MSB 292 73 2178, Version B,                   registry.
                                           MSB A292 73 2830, Version B, dated                      dated March 23, 2017. Safran Helicopter                 We estimate the following costs to
                                           July 10, 2009, and Alert MSB A292 73                    Engines MSB 292 73 2178, Version B,                   comply with this AD:

                                                                                                                ESTIMATED COSTS
                                                                                                                                                                            Cost per      Cost on U.S.
                                                                 Action                                              Labor cost                          Parts cost         product        operators

                                           Remove and replace the HP/LP fuel pump                 2 work-hours × $85 per hour = $170 .............            $17,400           $17,570      $7,326,690
                                             metering unit.



                                           Authority for This Rulemaking                           Regulatory Findings                                   PART 39—AIRWORTHINESS
                                                                                                                                                         DIRECTIVES
                                              Title 49 of the United States Code                     We have determined that this AD will
                                           specifies the FAA’s authority to issue                  not have federalism implications under                ■ 1. The authority citation for part 39
                                           rules on aviation safety. Subtitle I,                   Executive Order 13132. This AD will                   continues to read as follows:
                                           Section 106, describes the authority of                 not have a substantial direct effect on                   Authority: 49 U.S.C. 106(g), 40113, 44701.
                                           the FAA Administrator. Subtitle VII,                    the States, on the relationship between
                                           Aviation Programs, describes in more                    the national government and the States,               § 39.13    [Amended]
                                           detail the scope of the Agency’s                        or on the distribution of power and                   ■ 2. The FAA amends § 39.13 by
                                           authority.                                              responsibilities among the various                    removing Airworthiness Directive (AD)
                                              We are issuing this rulemaking under                 levels of government.                                 2012–03–11, Amendment 39–16953 (77
                                           the authority described in Subtitle VII,                                                                      FR 8092, February 14, 2012), and adding
                                           Part A, Subpart III, Section 44701,                       For the reasons discussed above, I
                                                                                                   certify that this AD:                                 the following new AD:
                                           ‘‘General requirements.’’ Under that
                                                                                                                                                         2018–12–01 Safran Helicopter Engines
                                           section, Congress charges the FAA with                    (1) Is not a ‘‘significant regulatory
                                                                                                                                                             (Type Certificate previously held by
                                           promoting safe flight of civil aircraft in              action’’ under Executive Order 12866,                     Turbomeca, S.A.): Amendment 39–
                                           air commerce by prescribing regulations                   (2) Is not a ‘‘significant rule’’ under                 19305; Docket No. FAA–2009–0889;
                                           for practices, methods, and procedures                  DOT Regulatory Policies and Procedures                    Product Identifier 2009–NE–35–AD.
                                           the Administrator finds necessary for                   (44 FR 11034, February 26, 1979),                     (a) Effective Date
                                           safety in air commerce. This regulation
                                           is within the scope of that authority                     (3) Will not affect intrastate aviation               This AD is effective September 12, 2018.
                                           because it addresses an unsafe condition                in Alaska, and                                        (b) Affected ADs
                                           that is likely to exist or develop on                     (4) Will not have a significant                       This AD replaces AD 2012–03–11,
                                           products identified in this rulemaking                  economic impact, positive or negative,                Amendment 39–16953 (77 FR 8092, February
                                           action.                                                 on a substantial number of small entities             14, 2012).
                                              This AD is issued in accordance with                 under the criteria of the Regulatory                  (c) Applicability
                                           authority delegated by the Executive                    Flexibility Act.                                         This AD applies to Safran Helicopter
                                           Director, Aircraft Certification Service,                                                                     Engines, S.A., Arriel 2B and 2B1 turboshaft
                                           as authorized by FAA Order 8000.51C.                    List of Subjects in 14 CFR Part 39
                                                                                                                                                         engines, except those incorporating
                                           In accordance with that order, issuance                   Air transportation, Aircraft, Aviation              Modification TU 178.
                                           of ADs is normally a function of the                    safety, Incorporation by reference,                   (d) Subject
                                           Compliance and Airworthiness
                                                                                                   Safety.                                                 Joint Aircraft System Component (JASC)
                                           Division, but during this transition
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                                           period, the Executive Director has                      Adoption of the Amendment                             Code 7300, Engine Fuel and Control.
                                           delegated the authority to issue ADs                                                                          (e) Unsafe Condition
                                           applicable to engines, propellers, and                    Accordingly, under the authority
                                                                                                                                                            This AD was prompted by analysis that
                                           associated appliances to the Manager,                   delegated to me by the Administrator,                 indicated the modification of an engine to
                                           Engine and Propeller Standards Branch,                  the FAA amends 14 CFR part 39 as                      incorporate Modification TU 178 provides a
                                           Policy and Innovation Division.                         follows:                                              more effective method than Modification TU



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                                                            Federal Register / Vol. 83, No. 153 / Wednesday, August 8, 2018 / Rules and Regulations                                        38953

                                           147 to reduce the risk of uncoupling between            (k) Related Information                               DEPARTMENT OF TRANSPORTATION
                                           the low-pressure (LP) fuel pump impeller                  (1) For more information about this AD,
                                           and the high-pressure (HP) fuel pump shaft                                                                    Federal Aviation Administration
                                                                                                   contact John Frost, Aerospace Engineer, ECO
                                           of the HP/LP pump and hydro-mechanical
                                                                                                   Branch, FAA, 1200 District Avenue,
                                           metering unit (HMU). We are issuing this AD                                                                   14 CFR Part 39
                                           to prevent failure of the HMU. The unsafe               Burlington, MA 01803; phone: 781–238–
                                           condition, if not corrected, could result in            7756; fax: 781–238–7199; email: john.frost@           [Docket No. FAA–2018–0640; Product
                                           failure of the engine, in-flight shutdown, and          faa.gov.                                              Identifier 2018–NM–075–AD; Amendment
                                           loss of the helicopter.                                   (2) Refer to European Aviation Safety               39–19343; AD 2018–16–03]
                                                                                                   Agency (EASA) AD 2017–0102, dated June
                                           (f) Compliance                                                                                                RIN 2120–AA64
                                                                                                   13, 2017, for more information. You may
                                             Comply with this AD within the                        examine the EASA AD on the internet at
                                           compliance times specified, unless already
                                                                                                                                                         Airworthiness Directives; Airbus SAS
                                                                                                   http://www.regulations.gov by searching for
                                           done.                                                                                                         Airplanes
                                                                                                   and locating Docket No. FAA–2009–0889.
                                           (g) Required Actions                                                                                          AGENCY:  Federal Aviation
                                                                                                   (l) Material Incorporated by Reference
                                              (1) Check the transmissible torque between
                                                                                                                                                         Administration (FAA), DOT.
                                                                                                      (1) The Director of the Federal Register
                                           the LP fuel pump impeller and the HP fuel                                                                     ACTION: Final rule; request for
                                                                                                   approved the incorporation by reference
                                           pump shaft as follows:                                                                                        comments.
                                                                                                   (IBR) of the service information listed in this
                                              (i) For pre-Modification TU 147 HMUs,
                                                                                                   paragraph under 5 U.S.C. 552(a) and 1 CFR             SUMMARY:    We are adopting a new
                                           check the torque before accumulating 500
                                           engine flight hours (FHs) since March 11,               part 51.                                              airworthiness directive (AD) for all
                                           2010 or before the next flight after the                   (2) You must use this service information          Airbus SAS Model A319–133 airplanes
                                           effective date of this AD, whichever occurs             as applicable to do the actions required by           and Model A321–232 airplanes. This
                                           later. Use Paragraph 2.A. of Turbomeca Alert            this AD, unless the AD specifies otherwise.           AD requires modification and re-
                                           Mandatory Service Bulletin (MSB) A292 73                   (3) The following service information was          identification, or replacement, of certain
                                           2830, Version B, dated July 10, 2009 to do              approved for IBR on March 11, 2010 (75 FR             engine fan cowl doors (FCDs) and
                                           the check.                                              5689, February 4, 2010).                              installation of a placard in the flight
                                              (ii) For HMUs that incorporated                         (i) Turbomeca Alert Mandatory Service              deck. This AD was prompted by reports
                                           Modification TU 147 on or before March 31,              Bulletin (MSB) No. A292 73 2830, Version B,
                                           2010, and those HMUs not listed in Figure                                                                     of in-service engine FCD losses, and the
                                                                                                   dated July 10, 2009.
                                           2 or 3 of Turbomeca Alert MSB A292 73                                                                         development of a new FCD front latch
                                                                                                      (ii) Reserved.
                                           2836, Version A, dated August 17, 2010,                                                                       and keeper assembly that addresses this
                                                                                                      (4) The following service information was
                                           check the torque before the next flight after                                                                 unsafe condition. We are issuing this
                                                                                                   approved for IBR on March 20, 2012 (77 FR
                                           the effective date of this AD. Use Paragraph                                                                  AD to address the unsafe condition on
                                                                                                   8092, February 14, 2012).
                                           2.A. of Turbomeca Alert MSB A292 73 2836,                                                                     these products.
                                                                                                      (i) Turbomeca Alert MSB No. A292 73
                                           Version A, dated August 17, 2010, to do the                                                                   DATES: This AD becomes effective
                                           check.                                                  2836, Version A, dated August 17, 2010.
                                                                                                      (ii) Reserved.                                     August 23, 2018.
                                              (2) If the HMU does not pass the torque
                                                                                                      (5) For Safran Helicopter Engines, S.A,              The Director of the Federal Register
                                           check, replace the HMU with a post-
                                           Modification TU 178 HMU before the next                 service information identified in this AD,            approved the incorporation by reference
                                           flight after the effective date of this AD.             contact Safran Helicopter Engines, S.A.,              of a certain publication listed in this AD
                                                                                                   40220 Tarnos, France; phone: (33) 05 59 74            as of August 3, 2017 (82 FR 29371, June
                                           (h) Mandatory Terminating Action                                                                              29, 2017).
                                                                                                   40 00; fax: (33) 05 59 74 45 15.
                                              Within 2,200 engine FHs or 72 months                    (6) You may view this service information            We must receive comments on this
                                           after the effective date of this AD, whichever          at FAA, Engine and Propeller Standards                AD by September 24, 2018.
                                           occurs first, replace any pre-Modification TU           Branch, 1200 District Avenue, Burlington,             ADDRESSES: You may send comments,
                                           178 HMU with a post-Modification TU 178                 MA 01803. For information on the                      using the procedures found in 14 CFR
                                           configuration HMU.
                                                                                                   availability of this material at the FAA, call        11.43 and 11.45, by any of the following
                                           (i) Installation Prohibition                            781–238–7759.                                         methods:
                                             After the effective date of this AD, do not              (7) You may view this service information            • Federal eRulemaking Portal: Go to
                                           install a pre-Modification TU 178 HMU on                that is incorporated by reference at the              http://www.regulations.gov. Follow the
                                           engines incorporating a post-Modification TU            National Archives and Records                         instructions for submitting comments.
                                           178 HMU.                                                Administration (NARA). For information on               • Fax: 202–493–2251.
                                           (j) Alternative Methods of Compliance
                                                                                                   the availability of this material at NARA, call         • Mail: U.S. Department of
                                                                                                   202–741–6030, or go to: http://                       Transportation, Docket Operations, M–
                                           (AMOCs)
                                                                                                   www.archives.gov/federal-register/cfr/ibr-            30, West Building Ground Floor, Room
                                              (1) The Manager, ECO Branch, FAA, has                locations.html.
                                           the authority to approve AMOCs for this AD,                                                                   W12–140, 1200 New Jersey Avenue SE,
                                           if requested using the procedures found in 14             Issued in Burlington, Massachusetts, on             Washington, DC 20590.
                                           CFR 39.19. In accordance with 14 CFR 39.19,             July 31, 2018.                                          • Hand Delivery: U.S. Department of
                                           send your request to your principal inspector           Robert J. Ganley,                                     Transportation, Docket Operations, M–
                                           or local Flight Standards District Office, as                                                                 30, West Building Ground Floor, Room
                                                                                                   Manager, Engine and Propeller Standards
                                           appropriate. If sending information directly                                                                  W12–140, 1200 New Jersey Avenue SE,
                                                                                                   Branch, Aircraft Certification Service.
                                           to the manager of the certification office,                                                                   Washington, DC, between 9 a.m. and 5
                                           send it to the attention of the person                  [FR Doc. 2018–16652 Filed 8–7–18; 8:45 am]
                                                                                                                                                         p.m., Monday through Friday, except
                                           identified in paragraph (k)(1) of this AD. You          BILLING CODE 4910–13–P
                                                                                                                                                         Federal holidays.
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                                           may email your request to: ANE-AD-AMOC@
                                           faa.gov.
                                                                                                                                                           For service information identified in
                                              (2) Before using any approved AMOC,                                                                        this final rule, contact Airbus SAS,
                                           notify your appropriate principal inspector,                                                                  Airworthiness Office—EIAS, Rond-
                                           or lacking a principal inspector, the manager                                                                 Point Emile Dewoitine No: 2, 31700
                                           of the local flight standards district office/                                                                Blagnac Cedex, France; telephone +33 5
                                           certificate holding district office.                                                                          61 93 36 96; fax +33 5 61 93 44 51; email


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Document Created: 2018-08-08 02:06:16
Document Modified: 2018-08-08 02:06:16
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionRules and Regulations
ActionFinal rule.
DatesThis AD is effective September 12, 2018.
ContactJohn Frost, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781- 238-7756; fax: 781-238-7199; email: [email protected]
FR Citation83 FR 38951 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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