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2017-09-02 AIRBUS HELICOPTERS DEUTSCHLAND GMBH: Amendment 39-18864; Docket No. FAA-2016-6928; Directorate Identifier 2016-SW-018-AD.
(a) APPLICABILITY

    This AD  applies  to  Airbus Helicopters Deutschland GmbH Model MBB-BK
    117 C-2 (including configuration C-2e) helicopters, serial number 9004
    through  9725,  and  Model MBB-BK 117 D-2 helicopters,  serial  number
    20003 through 20045, certificated in  any category,  with an air inlet
    part number (P/N) B212M20C1005 installed.

(b) UNSAFE CONDITION

    This AD  defines the  unsafe condition  as a  detached air inlet cover
    ring (ring), which  could become stuck  between the air  inlet and the
    cyclic stick, restricting movement of the cyclic stick. This condition
    could result in loss of helicopter control.

(c) EFFECTIVE DATE

    This AD becomes effective May 31, 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

(1) Within 100 hours time-in-service (TIS),  manually inspect each ring to
    determine if it is loose. If  a ring is loose, before further  flight,
    glue the ring on the air inlet using an adhesive (CM 687 or CM 6044 or
    equivalent) as shown in Figure  1 of Airbus Helicopters Alert  Service
    Bulletin (ASB) MBB-BK117 C-2-21A-011,  Revision 0,  dated November 16,
    2015  (ASB C-2-21A-011),  or  ASB  MBB-BK117 D-2-21A-004,  Revision 0,
    dated November 16, 2015 (ASB D-2-21A-004), as applicable to your model
    helicopter. Rivet  the ring  to the  air inlet  in accordance with the
    Accomplishment Instructions, paragraphs 3.B.4.2 through 3.B.4.4 of ASB
    C-2-21A-011 or paragraphs 3.B.3.2 through 3.B.3.4 of ASB D-2-21A-004.

(2) If a ring is not loose, within 400 hours TIS:

(i) Manually inspect the ring to determine if it is loose.  If the ring is
    loose, before further flight,  glue the ring on the air inlet using an
    adhesive (CM 687 or CM 6044 or equivalent) as shown in Figure 1 of ASB
    C-2-21A-011 or ASB D-2-21A-004.

(ii) Rivet the ring to the air inlet in accordance with the Accomplishment
     Instructions,  paragraphs 3.B.3.2 through 3.B.3.4  of ASB C-2-21A-011
     or paragraphs 3.B.2.2 through 3.B.2.4 of ASB D-2-21A-004.

(3) After the effective date of this AD,  do not install  an air inlet P/N
    B212M20C1005 on any helicopter unless the ring has been riveted to the
    air inlet in accordance with the requirements of this AD.

(f) 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.

(g) ADDITIONAL INFORMATION

    The subject of this AD is addressed in European Aviation Safety Agency
    (EASA) AD No. 2016-0001, dated January 4, 2016.  You may view the EASA
    AD  on  the  Internet at http://www.regulations.gov in Docket No. FAA-
    2016-6928.

(h) SUBJECT

    Joint Aircraft Service Component (JASC) Code: 2150, Cabin Cooling Sys-
    tem.

(i) MATERIAL INCORPORATED BY REFERENCE

(1) The  Director  of  the  Federal Register approved the incorporation by
    reference 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.

(i) Airbus  Helicopters   Alert  Service  Bulletin  MBB-BK117 C-2-21A-011,
    Revision 0, dated November 16, 2015.

(ii) Airbus  Helicopters  Alert  Service  Bulletin  MBB-BK117 D-2-21A-004,
     Revision 0, dated November 16, 2015.

(3) For Airbus Helicopters service information identified in this AD, con-
    tact Airbus Helicopters, 2701 N. Forum Drive, Grand Prairie, TX 75052;
    telephone (972) 641-0000 or (800) 232-0323;  fax (972) 641-3775; or at
    https://www.airbushelicopters.com/techpub/FO/scripts/myFO_login.php.

(4) You may view  this service information at 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.

(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  Fort Worth,  Texas, on  April 18, 2017.  Scott A. Horn, Acting
Manager, Rotorcraft Directorate, Aircraft Certification Service.

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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2016-6928; Directorate Identifier 2016-SW-018-AD;
Amendment 39-18864; AD 2017-09-02]
RIN 2120-AA64

Airworthiness Directives; Airbus Helicopters Deutschland GmbH
Helicopters

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: We are adopting a new airworthiness directive (AD) for Airbus
Helicopters Deutschland GmbH Helicopters (Airbus Helicopters) Model
MBB-BK 117 C-2 and MBB-BK 117 D-2 helicopters. This AD requires
installing rivets to the air inlet cover rings (rings). This AD was
prompted by reports of rings detaching. The actions of this AD are
intended to prevent the unsafe condition on these products.

DATES: This AD is effective May 31, 2017.
The Director of the Federal Register approved the incorporation by
reference of certain documents listed in this AD as of May 31, 2017.

ADDRESSES: For service information identified in this final rule,
contact Airbus Helicopters, 2701 N. Forum Drive, Grand Prairie, TX
75052; telephone (972) 641-0000 or (800) 232-0323; fax (972) 641-3775;
or at https://www.airbushelicopters.com/techpub/FO/scripts/myFO_login.php.
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. It is also available
on the Internet at http://www.regulations.gov by searching for and
locating Docket No. FAA-2016-6928.

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-2016-
6928; 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 AD, the European Aviation Safety Agency (EASA) AD, any
incorporated-by-reference service information, the economic evaluation,
any comments received, and other information. The street address for
the Docket Operations Office (phone: 800-647-5527) is U.S. Department
of Transportation, Docket Operations Office, M-30, West Building Ground
Floor, Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590.

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:

Discussion

On January 5, 2017, at 82 FR 1252, the Federal Register published
our notice of proposed rulemaking (NPRM), which proposed to amend 14
CFR part 39 by adding an AD that would apply to Airbus Helicopters
Model MBB-BK 117 C-2 (including configuration C-2e) helicopters, serial
number 9004 through 9725, and Model MBB-BK 117 D-2 helicopters, serial
number 20003 through 20045, with an air inlet part number (P/N)
B212M20C1005 installed. The NPRM proposed inspecting each ring and
determining if it is loose, and gluing and installing rivets to the
rings. The proposed requirements were intended to prevent a ring from
detaching, which could then become stuck between the air inlet and the
cyclic stick, restricting movement of the cyclic stick. This condition
could result in loss of helicopter control.
The NPRM was prompted by AD No. 2016-0001, dated January 4, 2016,
issued by EASA, which is the Technical Agent for the Member States of
the European Union, to correct an unsafe condition for Airbus
Helicopters Model MBB-BK 117 C-2, Model MBB-BK117 C-2e, Model MBB-BK117
D-2, and MBB-BK117 D-2m helicopters. EASA advises that a ring detached
and got stuck between the air inlet and the cyclic stick on a Model
MBB-BK117 C-2 helicopter and an inspection on another helicopter found
a second loose cover ring. EASA states that this condition, if not
corrected, could affect the cyclic stick's range of movement, possibly
resulting in degraded control of the helicopter. The EASA AD
consequently requires inspections and reinforcement of the rings'
installation.

Comments

We gave the public the opportunity to participate in developing
this AD, but we received no comments on the NPRM.

FAA's Determination

These helicopters have been approved by the aviation authority of
Germany and are approved for operation in the United States. Pursuant
to our bilateral agreement with Germany, EASA, its technical
representative, has notified us of the unsafe condition described in
the EASA AD. We are issuing this AD because we evaluated all
information provided by EASA and determined the unsafe condition exists
and is likely to exist or develop on other helicopters of these same
type designs and that air safety and the public interest require
adopting the AD requirements as proposed.

Differences Between This AD and the EASA AD

The EASA AD applies to Model MBB-BK117 D-2m helicopters. This AD
does not because this model does not have an FAA type certificate. The
EASA AD requires compliance for Model MBB-BK117 D-2 helicopters within
400 hours time-in-service (TIS), while this AD requires compliance
within 100 hours TIS. The EASA AD requires marking the air inlet with
the applicable alert service bulletin once it is glued and riveted,
while this AD does not.

Related Service Information Under 1 CFR Part 51

We reviewed Airbus Helicopters Alert Service Bulletin (ASB) MBB-
BK117 C-2-21A-011 for Model MBB-BK 117 C-2 and Model MBB-BK117 C-2e
helicopters and ASB MBB-BK117 D-2-21A-004 for Model MBB-BK 117 D-2 and
Model MBB-BK 117 D-2m helicopters. Both ASBs are Revision 0 and dated
November 16, 2015. This service information introduces an improved
attachment method for the ring using rivets. The ASBs specify
inspecting the air inlet to determine whether the ring is loose, and
then gluing and riveting the ring to the air inlet at different
timeframes, depending on whether it is loose.
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.

Costs of Compliance

We estimate that this AD affects 141 helicopters of U.S. Registry
and that labor costs average $85 per work-hour. Based on these
estimates, we expect the following costs:
Manually inspecting the left and right air inlet cover rings
requires a half work-hour for a labor cost of $43 per helicopter. No
parts are needed, so the U.S. fleet cost totals $6,063.
Riveting the rings requires 2 work-hours for a labor cost of $170
per helicopter. The cost for parts is minimal for a U.S. fleet cost of
$23,970.

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 helicopters 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) Is not a ``significant rule'' under DOT Regulatory Policies and
Procedures (44 FR 11034, February 26, 1979);
(3) Will not affect intrastate aviation in Alaska to the extent
that it justifies making a regulatory distinction; and
(4) Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
We prepared an economic evaluation of the estimated costs to comply
with this 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.

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 airworthiness
directive (AD):