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2021-22-09 LEONARDO S.P.A.: Amendment 39-21782; Docket No. FAA-2021-0687; Project Identifier 2019-SW-029-AD.
(a) EFFECTIVE DATE

    This airworthiness directive (AD) is effective December 27, 2021.

(b) AFFECTED ADS

    None.

(c) APPLICABILITY

    This  AD   applies  to   Leonardo  S.p.a.   Model  AW189  helicopters,
    certificated in any category, as identified in European Union Aviation
    Safety Agency (EASA)  AD 2019-0039, dated  February 20, 2019  (EASA AD
    2019-0039).

(d) SUBJECT

    Joint Aircraft Service Component (JASC) Code: 7170, Engine Drains.

(e) UNSAFE CONDITION

    This AD  was prompted  by a  report that  a number  of fairleads  that
    support the engine combustion chamber D1 drain hose showed evidence of
    heat damage. The FAA is issuing  this AD to address such heat  damage,
    which in a  case where the  right-hand engine is  operated in the  one
    engine inoperative (OEI) rating, the  D1 drain pipe could transfer  so
    much  heat  to  the nearby  fuel system  vent pipe  that its  internal
    surface  temperature could  exceed the  auto-ignition temperature  for
    fuel.  The  unsafe  condition,  if  not  addressed,  could  result  in
    undetected fire ignition in the fuel tank bay with consequent loss  of
    the helicopter.

(f) COMPLIANCE

    Comply with this AD within the compliance times specified,  unless al-
    ready done.

(g) REQUIREMENTS

    Except as specified in paragraph (h)  of this AD:  Comply with all re-
    quired actions and compliance times specified in,  and  in  accordance
    with, EASA AD 2019-0039.

(h) EXCEPTIONS TO EASA AD 2019-0039

(1) Where EASA AD 2019-0039 requires compliance  in terms of flight hours,
    this AD requires using hours time-in-service.

(2) Where EASA AD 2019-0039 refers to its effective date, this AD requires
    using the effective date of this AD.

(3) Where the service information  required by EASA AD 2019-0039 specifies
    discarding parts, this AD requires removing those parts from service.

(4) This AD does not require the "Remarks" section of EASA AD 2019-0039.

(i) NO REPORTING REQUIREMENT

    Although the service information referenced in EASA AD 2019-0039 spec-
    ifies to submit certain information to the manufacturer,  this AD does
    not include that requirement.

(j) SPECIAL FLIGHT PERMIT

    Special flight permits may be issued in accordance with 14 CFR  21.197
    and 21.199 to operate the airplane to a location where the  helicopter
    can be modified,  provided the OEI  rating is prohibited  on the right
    -hand engine.

(k) ALTERNATIVE METHODS OF COMPLIANCE (AMOCS)

(1) The Manager, International Validation 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
    International  Validation  Branch, send  it  to the  attention  of the
    person identified  in paragraph  (l) of  this AD.  Information may  be
    emailed to: 9-AVS-AIR-730-AMOC@faa.gov.

(2) Before using any approved AMOC,  notify your appropriate principal in-
    spector, or lacking  a principal inspector,  the manager of  the local
    flight standards district office/certificate holding district office.

(l) RELATED INFORMATION

    For more information  about this AD,  contact  Jacob Fitch,  Aerospace
    Engineer,  COS Program Management Section,  Operational Safety Branch,
    Compliance & Airworthiness Division, FAA,  10101 Hillwood Pkwy.,  Fort
    Worth, TX 76177; telephone (817) 222-4130; email jacob.fitch@faa.gov.

(m) 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 this AD specifies otherwise.

(i) European Union Aviation Safety Agency (EASA) AD 2019-0039,  dated Feb-
    ruary 20, 2019.

(ii) [Reserved]

(3) For EASA AD 2019-0039, contact the EASA, Konrad-Adenauer-Ufer 3, 50668
    Cologne, Germany; telephone +49 221 8999 000; email ADs@easa.europa.eu
    Internet www.easa.europa.eu. You may find this EASA AD on the EASA web
    site at https://ad.easa.europa.eu.

(4) You may view  this  service  information  at  the  FAA,  Office of the
    Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N-321,
    Fort Worth, TX 76177.  For information  on  the  availability  of this
    material at the FAA, call 817-222-5110.  This material may be found in
    the AD docket on the Internet at https://www.regulations.gov by search
    -ing for and locating Docket No. FAA-2021-0687.

(5) You may view this material  that is incorporated  by reference  at the
    National Archives and Records Administration (NARA).  For  information
    on the availability of this material at NARA, email fedreg.legal@nara.
    gov,   or   go  to  https://www.archives.gov/federal-register/cfr/ibr-
    locations.html.

Issued on October 14, 2021. Lance T Gant, Director, Compliance & Airworth-
iness Division, Aircraft Certification Service.

FOR FURTHER INFORMATION CONTACT: Jacob Fitch, Aerospace Engineer, COS Pro-
gram Management Section, Operational Safety Branch, Compliance & Airworth-
iness Division, FAA, 10101 Hillwood Pkwy., Fort Worth, TX 76177; telephone
(817) 222-4130; email jacob.fitch@faa.gov.
PREAMBLE 

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2021-0687; Project Identifier 2019-SW-029-AD; Amendment
39-21782; AD 2021-22-09]
RIN 2120-AA64

Airworthiness Directives; Leonardo S.p.a. Helicopters

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for
certain Leonardo S.p.a. Model AW189 helicopters. This AD was prompted
by a report that a number of fairleads that support the engine
combustion chamber D1 drain hose showed evidence of heat damage. This
AD requires modifying the helicopter by installing a certain engine
combustion chamber D1 drain assembly, as specified in a European Union
Aviation Safety Agency (EASA) AD, which is incorporated by reference.
The FAA is issuing this AD to address the unsafe condition on these
products.

DATES: This AD is effective December 27, 2021.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of December 27,
2021.

ADDRESSES: For material incorporated by reference (IBR) in this AD,
contact the EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany;
telephone +49 221 8999 000; email ADs@easa.europa.eu; internet
www.easa.europa.eu. You may find this material on the EASA website at
https://ad.easa.europa.eu. You may view this material at the FAA,
Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy.,
Room 6N-321, Fort Worth, TX 76177. For information on the availability
of this material at the FAA, call 817-222-5110. It is also available in
the AD docket on the internet at https://www.regulations.gov by
searching for and locating Docket No. FAA-2021-0687.

Examining the AD Docket

You may examine the AD docket on the internet at https://www.regulations.gov
by searching for and locating Docket No. FAA-2021-
0687; 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, any comments received, and other information. The
address for Docket Operations is 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: Jacob Fitch, Aerospace Engineer, COS
Program Management Section, Operational Safety Branch, Compliance &
Airworthiness Division, FAA, 10101 Hillwood Pkwy., Fort Worth, TX
76177; telephone (817) 222-4130; email jacob.fitch@faa.gov.

SUPPLEMENTARY INFORMATION:

Background

The EASA, which is the Technical Agent for the Member States of the
European Union, has issued EASA AD 2019-0039, dated February 20, 2019
(EASA AD 2019-0039) (also referred to as the Mandatory Continuing
Airworthiness Information, or the MCAI), to correct an unsafe condition
for certain Leonardo S.p.A. Model AW189 helicopters.
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 by adding an AD that would apply to certain Leonardo S.p.a.
Model AW189 helicopters. The NPRM published in the Federal Register on
August 23, 2021 (86 FR 47033). The
NPRM was prompted by a report that a number of fairleads that support
the engine combustion chamber D1 drain hose showed evidence of heat
damage. The NPRM proposed to require modifying the helicopter by
installing a certain engine combustion chamber D1 drain assembly, as
specified in an EASA AD.
The FAA is issuing this AD to address heat damage of the engine
combustion chamber D1 drain hose, which in a case where the right-hand
engine is operated in the one engine inoperative (OEI) rating, the D1
drain pipe could transfer so much heat to the nearby fuel system vent
pipe that its internal surface temperature could exceed the auto-
ignition temperature for fuel. The unsafe condition, if not addressed,
could result in undetected fire ignition in the fuel tank bay with
consequent loss of the helicopter. See the MCAI for additional
background information.

Comments

The FAA gave the public the opportunity to participate in
developing this final rule. The FAA received no comments on the NPRM or
on the determination of the cost to the public.

Conclusion

The FAA reviewed the relevant data and determined that air safety
and the public interest require adopting this final rule as proposed,
except for minor editorial changes. The FAA has 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

EASA AD 2019-0039 requires modifying the helicopter by installing
the engine combustion chamber D1 drain assembly, part number
8G7170P00111.
This material is reasonably available because the interested
parties have access to it through their normal course of business or by
the means identified in the ADDRESSES section.

Costs of Compliance

The FAA estimates that this AD affects 4 helicopters of U.S.
registry. The FAA estimates the following costs to comply with this AD:

Estimated Costs

Action Labor cost Parts cost Cost per product Cost on U.S. operators
Modification 4 work-hours x $85 per hour = $340 $2,557 $2,897 $11,588

The FAA has included all known costs in its cost estimate.
According to the manufacturer, however, some or all of the costs of
this AD may be covered under warranty, thereby reducing the cost impact
on affected operators.

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.
The FAA is 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

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) Will not affect intrastate aviation in Alaska, and
(3) Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.

List of Subjects in 14 CFR Part 39

Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.

The 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.

Sec. 39.13 [Amended]

2. The FAA amends Sec. 39.13 by adding the following new airworthiness
directive: