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2017-20-13 PIAGGIO AERO INDUSTRIES S.P.A.:
Amendment 39-19070; Docket No. FAA-2017-0648; Product Identifier 2017-CE-012-AD.

(a) EFFECTIVE DATE

    This airworthiness directive (AD) becomes effective November 16, 2017.

(b) AFFECTED ADS

    None.

(c) APPLICABILITY

    This  AD  applies  to  PIAGGIO AERO INDUSTRIES S.p.A. P-180 airplanes,
    serial numbers 1002, 1004 through 1220, that are:

(1) Equipped with flight control surfaces  part numbers (P/Ns)  and serial
    numbers (S/Ns) not listed in table 1 of PIAGGIO AERO INDUSTRIES S.p.A.
    Mandatory Service Bulletin N.: 80-0455,  dated:  January 13, 2017 (PAI
    SB No. 80-0455); and

(2) certificated in any category.

(d) SUBJECT

    Air Transport Association of America (ATA) Code 27: Flight Controls.

(e) REASON

    This AD was prompted by mandatory continuing airworthiness information
    (MCAI)  originated  by an  aviation  authority of  another  country to
    identify and correct an unsafe  condition on an aviation product.  The
    MCAI describes  the unsafe  condition as  disbonding of  the upper and
    lower metal skin from the honeycomb core on the elevator assembly  and
    other  flight control  surfaces.  We  are issuing  this AD  to prevent
    structural stiffness of the  flight control surface and  the downgrade
    of its aerodynamic characteristics, resulting in reduced control.

(f) ACTIONS AND COMPLIANCE

    Unless  already done,  do the actions in paragraphs (f)(1) through (8)
    of this  AD. The  parts affected  by this  AD are  all left  hand (LH)
    forward flaps,  right hand  (RH) forward  flaps, main  wing LH inboard
    flaps,  main  wing RH  inboard  flaps, LH  ailerons,  RH ailerons,  LH
    elevators,  and  RH  elevators,  hereafter  referred  to  as "affected
    control surface" in this AD.

(1) Within the next 50 hours time-in-service (TIS) after November 16, 2017
    (the effective date of this AD) or within the next 200 hours TIS after
    the  last  coin tapping  inspection  of the  affected  control surface
    following PAI Non-Destructive  Test Manual (NDTM)  180-MAN-0300-01107,
    Chapter 51-00-01; whichever occurs later, do a coin tapping inspection
    of each affected control  surface.  Repetitively thereafter inspect at
    the intervals specified in paragraphs (f)(3)(i) and (ii). Follow  Part
    B of the Accomplishment Instructions in PAI SB No. 80-0455.

(i) Do two repetitive inspections at intervals not to exceed 200 hours TIS
    and

(ii) Repetitively  thereafter inspect at intervals not to exceed 600 hours
     TIS.

(2) If damage is found  during any inspection required in paragraph (f)(1)
    of this AD, before further flight, repair or replace as necessary each
    damaged affected  control surface  following Part  B and/or  C of  the
    Accomplishment Instructions in PAI SB No. 80-0455.

(3) Within 50 hours TIS after the repair of an affected control surface as
    required by paragraph (f)(2) of this AD,  do a coin tapping inspection
    of  that repaired  affected control  surface.  Repetitively thereafter
    inspect at the intervals specified in paragraphs (f)(3)(i) and (ii) of
    this AD. Follow the instructions in PAI SB No. 80-0455.

(i) Do two repetitive inspections at intervals not to exceed 200 hours TIS
    and

(ii) Repetitively  thereafter inspect at intervals not to exceed 600 hours
     TIS.

(4) If damage is found  during any inspection required in paragraph (f)(3)
    of this AD, before further flight, repair or replace as necessary each
    damaged affected control surface  following the instructions in Part B
    and/or C of the Accomplishment Instructions in PAI SB No. 80-0455.

(5) Repair of an affected control surface, as required by paragraph (f)(2)
    or  (4)  of  this  AD,  does  not  constitute  terminating  action for
    repetitive  inspections  as  required by  this  AD  for that  affected
    control surface, unless  the FAA-approved repair  instructions specify
    otherwise.

(6) Replacement of the affected part on an airplane  with a part listed in
    table 1 of PAI SB No. 80-0455,  constitutes terminating action for the
    repetitive inspections required by this AD for that part.

(7) You may incorporate the actions of PAI SB No. 80-0455,  into your FAA-
    approved airplane inspection program (AIP) or maintenance program (in-
    structions for continued airworthiness)  to ensure the continuing air-
    worthiness of each operated airplane.

(8) After  November 16, 2017 (the effective date of this AD),  you may in-
    stall on an airplane an affected control surface not listed in table 1
    of  PAI SB  No. 80-0455,  provided  that  before further flight  after
    installation,  the  affected  control surface  has  been  inspected as
    specified in this AD and found airworthy.

(g) OTHER FAA AD PROVISIONS

    The following provisions also apply to this AD:

(1) Alternative  Methods  of  Compliance  (AMOCs):  The Manager, Standards
    Office,  FAA,  has the authority to approve AMOCs for this AD,  if re-
    quested using the procedures found in 14 CFR 39.19.  Send  information
    to ATTN Mike Kiesov, Aerospace Engineer, FAA, Small Airplane Standards
    Branch, 901 Locust,  Room 301, Kansas City, Missouri 64106; telephone:
    (816) 329-4144; fax: (816) 329-4090; email: mike.kiesov@faa.gov.Before
    using any  approved AMOC  on any  airplane to  which the AMOC applies,
    notify your  appropriate principal  inspector (PI)  in the  FAA Flight
    Standards District Office (FSDO), or lacking a PI, your local FSDO.

(2) Contacting the Manufacturer:  For any requirement in this AD to obtain
    corrective  actions   from  a   manufacturer,  the   action  must   be
    accomplished using a  method approved by  the Manager, Small  Airplane
    Standards Branch, FAA; or the European Aviation Safety Agency (EASA).

(3) Reporting  Requirements:  For any reporting requirement in this AD,  a
    federal  agency  may not  conduct  or sponsor,  and  a person  is  not
    required to respond to, nor shall a person be subject to a penalty for
    failure to  comply with  a collection  of information  subject to  the
    requirements of the Paperwork Reduction Act unless that collection  of
    information  displays  a current  valid  OMB Control  Number.  The OMB
    Control Number  for this  information collection  is 2120-0056. Public
    reporting  for  this  collection of  information  is  estimated to  be
    approximately 5 minutes per response, including the time for reviewing
    instructions, completing and reviewing the collection of  information.
    All  responses  to  this  collection  of  information  are  mandatory.
    Comments concerning the  accuracy of this  burden and suggestions  for
    reducing the burden should be directed to the FAA at: 800 Independence
    Ave. SW., Washington, DC 20591, Attn: Information Collection Clearance
    Officer, AES-200.

(h) RELATED INFORMATION

    Refer to MCAI European Aviation Safety Agency (EASA) AD No.: 2017-0045
    dated March 9, 2017 for related information.  You may examine the MCAI
    on  the  Internet  at https://www.regulations.gov/document?D=FAA-2017-
    0648-0002.

(i) 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) PIAGGIO AERO INDUSTRIES S.p.A. Mandatory Service Bulletin (SB) No.: 80
    -0455, dated January 13, 2017.

(ii) Reserved.

(3) For  PIAGGIO AERO INDUSTRIES S.p.A. service information  identified in
    this AD,  contact PIAGGIO AERO INDUSTRIES S.p.A.- Continued Airworthi-
    ness, Via Pionieri e Aviatori d'Italia snc-16154 Genova, Italy;  Tele-
    phone: +39 010 0998046;  Fax:  None;  email: airworthiness@piaggioaero
    space.it; Internet: www.piaggioaerospace.it/en/customer-support#care.

(4) You may view this service information at the FAA Policy and Innovation
    Division, 901 Locust, Kansas City, Missouri 64106.  For information on
    the availability of this material at the FAA,  call (816) 329-4148. In
    addition,  you can access this service information  on the Internet at
    http://www.regulations.gov by searching for  and  locating  Docket No.
    FAA-2017-0648.

(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: http://www.archives.gov/federal-register/cfr/ibr-
    locations.html.

Issued in Kansas City, Missouri, on September 29, 2017. Pat Mullen, Acting
Deputy  Director,  Policy &  Innovation  Division, Aircraft  Certification
Service.

FOR FURTHER INFORMATION CONTACT:  Mike Kiesov,  Aerospace  Engineer,  FAA,
Small Airplane Standards Branch, 901 Locust, Rm 301, Kansas City, Missouri
64106; telephone: (816) 329-4144; fax: (816) 329-4090; email: mike.kiesov@
faa.gov.
PREAMBLE 

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-0648; Product Identifier 2017-CE-012-AD; Amendment
39-19070; AD 2017-20-13]
RIN 2120-AA64

Airworthiness Directives; PIAGGIO AERO INDUSTRIES S.p.A. Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).

ACTION: Final rule.

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

SUMMARY: We are adopting a new airworthiness directive (AD) for PIAGGIO
AERO INDUSTRIES S.p.A. Model P-180 airplanes. This AD results from
mandatory continuing airworthiness information (MCAI) originated by an
aviation authority of another country to identify and correct an unsafe
condition on an aviation product. The MCAI describes the unsafe
condition as disbonding of the upper and lower metal skin from the
honeycomb core on the elevator assembly and other flight control
surfaces. We are issuing this AD to require actions to address the
unsafe condition on these products.

DATES: This AD is effective November 16, 2017.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of November 16,
2017.

ADDRESSES: You may examine the AD docket on the Internet at http://
www.regulations.gov by searching for and locating Docket No. FAA-2017-
0638; or in person at Document Management Facility, 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 service information identified in this AD, contact PIAGGIO AERO
INDUSTRIES S.p.A--Continued Airworthiness, Via Pionieri e Aviatori
d'Italia snc--16154 Genova, Italy; Telephone: +39 010 0998046; Fax:
None; email: airworthiness@piaggioaerospace.it; Internet:
www.piaggioaerospace.it/en/customer-support#care. You may view this
referenced service information at the FAA, Policy and Innovation
Division, 901 Locust, Kansas City, Missouri 64106. For information on
the availability of this material at the FAA, call (816) 329-4148. It
is also available on the Internet at http://www.regulations.gov by
searching for Docket No. FAA-2017-0648.

FOR FURTHER INFORMATION CONTACT: Mike Kiesov, Aerospace Engineer, FAA,
Small Airplane Standards Branch, 901 Locust, Room 301, Kansas City,
Missouri 64106; telephone: (816) 329-4144; fax: (816) 329-4090; email:
mike.kiesov@faa.gov.

SUPPLEMENTARY INFORMATION:

Discussion

We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 by adding an AD that would apply to certain PIAGGIO AERO
INDUSTRIES S.p.A. Model P-180 airplanes. The NPRM was published in the
Federal Register on June 29, 2017 (82 FR 29445). The NPRM proposed to
correct an unsafe condition for the specified products and was based on
mandatory continuing airworthiness information (MCAI) originated by an
aviation authority of another country. The MCAI states:

During a post flight inspection of a right hand (RH) elevator
assembly, disbonding was detected on the upper and lower metal skin
from the honeycomb core. Subsequent investigation identified that a
manufacturing deficiency caused the detected disbonding and that
other flight control surfaces could potentially be affected by the
same deficiency.
This condition, if not detected and corrected, could reduce the
structural stiffness of the flight control surface and downgrade its
aerodynamic characteristics, possibly resulting in reduced control
of the aeroplane.
To address this potential unsafe condition, Piaggio Aero
Industries (PAI) issued Service Bulletin (SB) 80-0455 to provide
inspection instructions.
For the reasons described above, this [EASA] AD requires
repetitive inspections of the affected flight control assemblies
and, depending on findings, repair or replacement. This [EASA] AD
also requires reporting of the inspection result to PAI.

The MCAI can be found in the AD docket on the Internet at https://www.regulations.gov/document?D=FAA-2017-064-0002.

Comments

We gave the public the opportunity to participate in developing
this AD. We received no comments on the NPRM or on the determination of
the cost to the public.

Conclusion

We reviewed the relevant data 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 correcting 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 PIAGGIO AERO INDUSTRIES S.p.A. Mandatory Service
Bulletin N.: 80-0455, dated: January 13, 2017. This service information
describes procedures for repetitive inspections to verify the
structural integrity of the flight control assemblies. 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 of this AD.

Costs of Compliance

We estimate that this AD will affect 103 products of U.S. registry.
We also estimate that it will take 9 work-hours per product to comply
with the basic requirements of this AD. The average labor rate is $85
per work-hour.
Based on these figures, we estimate the cost of this AD on U.S.
operators to be $78,795, or $765 per product.
The scope of damage found in the required inspections could vary
significantly from airplane to airplane. We have no way of determining
how much damage may be found on each airplane or the cost to repair
damaged parts on each airplane.
In addition, we have no way of knowing how many products may need
replacement as a result of the required inspections. The following cost
estimates were obtained directly from the manufacturer and we estimate
that any necessary follow-on replacement actions would cost as follows:
(i) Control surface repair: 10 work-hours for a cost of $850 per
product.
(ii) Left Hand (LH) Forward Wing Flap Replacement: 4 work-hours and
require parts costing $30,079, for a total cost of $30,419.
(iii) Right Hand (RH) Forward Wing Flap Replacement: 4 work-hours
and require parts costing $30,079, for a total cost of $30,419.
(iv) LH Aileron Assembly: 7 work-hours and require parts costing
$40,715, for a total cost of $41,310.
(v) RH Aileron Assembly: 7 work-hours and require parts costing
$86,050, for a total cost of $86,645.
(vi) Main Wing LH Inboard Flap Assembly: 4 work-hours and require
parts costing $22,699, for a total cost of $23,039.
(vii) Main Wing RH Inboard Flap Assembly: 4 work-hours and require
parts costing $22,699, for a total cost of $23,039.
(viii) LH Elevator Assembly: 8 work-hours and require parts costing
$59,917, for a total cost of $60,597.
(ix) RH Elevator Assembly: 8 work-hours and require parts costing
$59,917, for a total cost of $60,597.
There is an additional 10 work-hours that may be required for post-
repair or post-installation replacement of flight control surface
adjustments and testing, for a total cost of $850.

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 small airplanes and domestic
business jet transport airplanes to the Director of the Policy and
Innovation Division.

Regulatory Findings

We 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 this AD:
(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, 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.

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-
0648; 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 the NPRM, the regulatory evaluation, any comments received,
and other information. The street address for the Docket Office
(telephone (800) 647-5527) is in the ADDRESSES section. Comments will
be available in the AD docket shortly after receipt.

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.

Sec. 39.13 [Amended]

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