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PROPOSED AD AGUSTA S.P.A.: Docket No. FAA-2017-0142; Directorate Identifier 2016-SW-013-AD.
(a) APPLICABILITY

    This  AD  applies  to Model  A109S  helicopters,  certificated in  any
    category.

(b) UNSAFE CONDITION

    This AD  defines the  unsafe condition  as detachment  of an  internal
    arrangement lower cabin liner.  This condition could result  in damage
    to  a  main  rotor  blade  and  subsequent  loss  of  control  of  the
    helicopter.

(c) COMMENTS DUE DATE

    We must receive comments by June 9, 2017.

(d) COMPLIANCE

    You are  responsible for  performing each  action required  by this AD
    within  the  specified  compliance time  unless  it  has already  been
    accomplished prior to that time.

(e) REQUIRED ACTIONS

    Within 15 hours time-in-service,  revise Section 1 Limitations  of the
    AgustaWestland Model A109S Rotorcraft Flight Manual (RFM) by inserting
    a copy of this AD into the RFM or by making pen-and-ink changes to add
    the information in Figure 1 to paragraph (e) of this AD.

                        ILLUSTRATION (Figure 1)

(f) CREDIT FOR PREVIOUS ACTIONS

    Incorporating  the  changes  contained  in  AgustaWestland  A109S RFM,
    Document No. 109G0040A013, Issue 2, Revision 3,  dated April 23, 2015,
    into Section  1 of  the RFM  before the  effective date  of this AD is
    considered acceptable for compliance with this AD.

(g) SPECIAL FLIGHT PERMITS

    Special flight permits are prohibited.

(h) ALTERNATIVE METHODS OF COMPLIANCE (AMOCS)

(1) The Manager, Safety Management Group, FAA,  may approve AMOCs for this
    AD.  Send  your  proposal  to:  Matt  Fuller,  Senior  Aviation Safety
    Engineer, Safety Management Group, Rotorcraft Directorate, FAA,  10101
    Hillwood Pkwy, Fort Worth, TX 76177;  telephone (817) 222-5110;  email
    9-ASW-FTW-AMOC-Requests@faa.gov.

(2) For operations conducted under a 14 CFR part 119 operating certificate
    or under 14 CFR  part 91, subpart K,  we suggest that you  notify your
    principal inspector, or lacking a principal inspector, the manager  of
    the  local flight  standards district  office  or  certificate holding
    district office before operating  any aircraft complying with  this AD
    through an AMOC.

(i) ADDITIONAL INFORMATION

(1) AgustaWestland A109S RFM Document No. 109G0040A013, Issue 2,  Revision
    3,  dated  April 23, 2015,  which  is  not incorporated  by reference,
    contains  additional information  about the  subject of  this AD.  For
    service  information identified  in this  AD, contact  AgustaWestland,
    Product Support Engineering, Via del Gregge, 100, 21015 Lonate Pozzolo
    (VA) Italy, ATTN: Maurizio D'Angelo; telephone 39-0331-664757; fax  39
    0331-664680; or at  http://www.agustawestland.com/technical-bulletins.
    You may review the referenced  service information at the FAA,  Office
    of the Regional Counsel,  Southwest Region, 10101 Hillwood  Pkwy, Room
    6N-321, Fort Worth, TX 76177.

(2) The subject of this AD is addressed in European Aviation Safety Agency
    (EASA) AD No. 2015-0227 dated November 19, 2015. You may view the EASA
    AD on the Internet at http://www.regulations.gov in the AD Docket.

(j) SUBJECT

    Joint Aircraft Service Component  (JASC)  Code:  2500 Cabin Equipment/
    Furnishings.

Issued in  Fort Worth,  Texas, on  March 31, 2017.  Scott A. Horn,  Acting
Manager, Rotorcraft Directorate, Aircraft Certification Service.

DATES: We must receive comments on this proposed AD by June 9, 2017.
PREAMBLE 

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-0142; Directorate Identifier 2016-SW-013-AD]
RIN 2120-AA64

Airworthiness Directives; Agusta S.p.A.

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: We propose to adopt a new airworthiness directive (AD) for
Agusta S.p.A. Model A109S helicopters. This proposed AD is prompted by
a report of a cabin liner detaching from the helicopter and hitting the
main rotor (M/R) blades during flight. This proposed AD would require
adding limitations to the rotorcraft flight manual (RFM). The proposed
actions are intended to prevent an unsafe condition on these products.

DATES: We must receive comments on this proposed AD by June 9, 2017.

ADDRESSES: You may send comments by any of the following methods:

Federal eRulemaking Docket: Go to http://www.regulations.gov. Follow the
online instructions for sending your comments electronically.

Fax: 202-493-2251.

Mail: Send comments to the U.S. Department of
Transportation, Docket Operations, M-30, West Building Ground Floor,
Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590-0001.

Hand Delivery: Deliver to the "Mail" address between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.

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-2017-0142;
or in person at the Docket Operations Office between 9 a.m. and 5
p.m., Monday through Friday, except Federal holidays. The AD docket
contains this proposed AD, the European Aviation Safety Agency (EASA)
AD, the economic evaluation, any comments received, and other
information. The street address for the Docket Operations Office
(telephone 800-647-5527) is in the ADDRESSES section. Comments will be
available in the AD docket shortly after receipt.

For service information identified in this proposed rule, contact
AgustaWestland, Product Support Engineering, Via del Gregge, 100, 21015
Lonate Pozzolo (VA) Italy, ATTN: Maurizio D'Angelo; telephone 39-0331-
664757; fax 39 0331-664680; or at http://www.agustawestland.com/technical-
bulletins. You may review the referenced service information at the FAA,
Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy,
Room 6N-321, Fort Worth, TX 76177.

FOR FURTHER INFORMATION CONTACT: Matt Fuller, Senior Aviation Safety
Engineer, Safety Management Group, Rotorcraft Directorate, FAA, 10101
Hillwood Pkwy, Fort Worth, TX 76177; telephone (817) 222-5110; email
matthew.fuller@faa.gov.

SUPPLEMENTARY INFORMATION:

Comments Invited

We invite you to participate in this rulemaking by submitting
written comments, data, or views. We also invite comments relating to
the economic, environmental, energy, or federalism impacts that might
result from adopting the proposals in this document. The most helpful
comments reference a specific portion of the proposal, explain the
reason for any recommended change, and include supporting data. To
ensure the docket does not contain duplicate comments, commenters
should send only one copy of written comments, or if comments are filed
electronically, commenters should submit only one time.

We will file in the docket all comments that we receive, as well as
a report summarizing each substantive public contact with FAA personnel
concerning this proposed rulemaking. Before acting on this proposal, we
will consider all comments we receive on or before the closing date for
comments. We will consider comments filed after the comment period has
closed if it is possible to do so without incurring expense or delay.
We may change this proposal in light of the comments we receive.

Discussion

EASA, which is the Technical Agent for the Member States of the
European Union, has issued EASA AD No. 2015-0227, dated November 19,
2015, to correct an unsafe condition for AgustaWestland S.p.A. Model
A109S helicopters. EASA advises of a report that the right-hand lower
cabin liner of Internal Arrangement part number (P/N) 109-0814-21-101
detached and hit three main rotor blades during a landing with the
right-hand door removed. EASA states that this condition, if not
corrected, could lead to further occurrences of in-flight lower cabin
liner detachment, possibly resulting in damage to or loss of control of
the helicopter. Therefore, the EASA AD requires revising the RFM to
provide limitations on flights with a passenger cabin sliding door
opened or removed. EASA considers its AD an interim action and states
further AD action may follow.

FAA's Determination

This helicopter has been approved by the aviation authority of
Italy and is approved for operation in the United States. Pursuant to
our bilateral agreement with Italy, EASA, its technical representative,
has notified us of the unsafe condition described in its AD. We are
proposing this AD because we evaluated all known relevant information
and determined that an unsafe condition is likely to exist or develop
on other helicopters of the same type design.

Related Service Information

We reviewed AgustaWestland A109S RFM, Document No. 109G0040A013,
Issue 2, Revision 3, dated April 23, 2015, which adds several
limitations regarding flight with a passenger cabin sliding door opened
or removed.

Proposed AD Requirements

This proposed AD would require, within 15 hours time-in-service,
revising the Limitations section of the RFM by inserting a copy of this
AD or by making pen-and-ink changes to add several limitations:
Prohibiting flight with a passenger cabin sliding door opened or
removed for helicopters with Internal Arrangement P/N 109-0814-21-101
installed; prohibiting flight with a passenger cabin sliding door open
unless modification P/N 109-0814-35 is installed; prohibiting flight
with a passenger cabin sliding door open unless the doors are locked;
establishing a maximum VNE with a passenger cabin sliding
door opened or removed; establishing a maximum airspeed for opening or
closing a passenger cabin sliding door during flight; and prohibiting
instrument flight rule operation with any door opened or removed.

Interim Action

We consider this proposed AD to be an interim action. The design
approval holder is currently developing a modification that will
address the unsafe condition identified in this AD. Once this
modification is developed, approved, and available, we might consider
additional rulemaking.

Costs of Compliance

We estimate that this proposed AD would affect 19 helicopters of
U.S. Registry. We estimate that operators may incur the following costs
in order to comply with this AD. At an average labor rate of $85 per
work-hour, revising the RFM would take about 0.5 work-hour, for an
estimated cost of $43 per helicopter, or $817 for the U.S. fleet.

Authority for This Rulemaking

Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, section 106, describes the
authority of the FAA Administrator. "Subtitle VII: Aviation
Programs," describes in more detail the scope of the Agency's
authority.

We are issuing this rulemaking under the authority described in
"Subtitle VII, Part A, Subpart III, Section 44701: General
requirements." Under that section, Congress charges the FAA with
promoting safe flight of civil aircraft in air commerce by prescribing
regulations for practices, methods, and procedures the Administrator
finds necessary for safety in air commerce. This regulation is within
the scope of that authority because it addresses an unsafe condition
that is likely to exist or develop on products identified in this
rulemaking action.

Regulatory Findings

We determined that this proposed AD would not have federalism
implications under Executive Order 13132. This proposed AD would not
have a substantial direct effect on the States, on the relationship
between the national Government and the States, or on the distribution
of power and responsibilities among the various levels of government.

For the reasons discussed, I certify this proposed regulation: (1)
Is not a "significant regulatory action" under Executive Order 12866;
(2) Is not a "significant rule" under the DOT Regulatory Policies and
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.

We prepared an economic evaluation of the estimated costs to comply
with this proposed AD and placed it in the AD docket.

List of Subjects in 14 CFR Part 39

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

The Proposed Amendment

Accordingly, under the authority delegated to me by the
Administrator, the FAA proposes to amend 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

1. The authority citation for part 39 continues to read as follows:

Authority: 49 U.S.C. 106(g), 40113, 44701.

Sec. 39.13 [Amended]

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