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2022-06-12 AIRBUS HELICOPTERS: AMENDMENT 39-21978; Docket No. FAA-2021-1176; Project Identifier MCAI-2021-00755-R.
(a) EFFECTIVE DATE

    This airworthiness directive (AD) is effective May 9, 2022.

(b) AFFECTED ADS

    None.

(c) APPLICABILITY

    This  AD  applies  to  Airbus  Helicopters  Model  SA330J helicopters,
    certificated in any category, as identified in European Union Aviation
    Safety Agency  (EASA) AD  2021-0152R1, dated  July 20,  2021 (EASA  AD
    2021-0152R1).

(d) SUBJECT

    Joint Aircraft Service Component  (JASC) Code: 6300, Main  Rotor Drive
    System.

(e) UNSAFE CONDITION

    This AD was prompted by  a review of Airbus Helicopters  Model EC225LP
    helicopter data that revealed potential tightening torque loss of  the
    attachment screws of the upper deck fittings of the three main gearbox
    (MGB) suspension bars. Due to design similarities, the MGB  right-hand
    (RH) rear fittings and MGB RH rear fitting attachment screws on  Model
    SA330J  helicopters  could  also  be  affected.  Additional   analysis
    confirmed  that the  service  life  limit (life  limit) (SLL)  for the
    affected MGB RH rear fittings  needs to be reduced for  helicopters on
    which these  affected parts  were operated  concurrently with metallic
    main rotor  blades installed.  The FAA  is issuing  this AD to address
    tightening torque  loss of  the attachment  screws of  the upper  deck
    fittings of the  three MGB suspension  bars. The unsafe  condition, if
    not addressed, could result in  structural failure of the MGB  RH rear
    fittings  and  MGB RH  rear  fitting attachment  screws,  resulting in
    detachment of the MGB suspension  bars and consequent loss of  control
    of the helicopter.

(f) COMPLIANCE

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

(g) REQUIREMENTS

    Except  as specified  in paragraph  (h) of  this AD:  Comply with  all
    required actions and compliance times specified in, and in  accordance
    with, EASA AD 2021-0152R1.

(h) EXCEPTIONS TO EASA AD 2021-0152R1

(1) Where  EASA  AD 2021-0152R1  requires  compliance  in terms  of flight
    hours, this AD requires using hours time-in-service.

(2) Where EASA AD 2021-0152R1 refers  to July 9, 2021 (the effective  date
    of EASA AD 2021-0152R1, dated  June 25, 2021), this AD  requires using
    the effective date of this AD.

(3) Where  the  service  information  referenced  in  EASA AD  2021-0152R1
    specifies discarding parts, this AD requires removing those parts from
    service.

(4) Although  the service  information referenced  in EASA  AD 2021-0152R1
    specifies that "The  work must be  performed on the  helicopter by the
    operator." this  AD does  not require  that the  operator perform  the
    work.

(5) This AD does not mandate compliance with the "Remarks" section of EASA
    AD 2021-0152R1.

(6) The  preliminary steps  specified in  paragraph 3.B.1.  of the service
    information referenced  in EASA  AD 2021-0152R1  are not  required for
    compliance with this AD.

(7) Although  the service  information referenced  in EASA  AD 2021-0152R1
    specifies contacting Airbus Helicopters if the time since new (TSN) is
    unknown at the retrofit date, this AD requires determining the  damage
    value  and  the  SLL  of  each  affected  part  but  does  not require
    contacting Airbus Helicopters  if the TSN  is unknown at  the retrofit
    date.

(i) NO REPORTING REQUIREMENT

    Although the  service information  referenced in  EASA AD  2021-0152R1
    specifies to submit certain  information to the  manufacturer, this AD
    does not include that requirement.

(j) 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  (k) 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
    inspector, or lacking a principal inspector, the manager of the  local
    flight standards district office/certificate  holding district office.

(k) RELATED INFORMATION

    For  more information  about this  AD, contact  Hal Jensen,  Aerospace
    Engineer,  Operational  Safety  Branch, FAA,  950  L'Enfant  Plaza SW,
    Washington,   DC    20024;   telephone:    (202)   267-9167;    email:
    hal.jensen@faa.gov.

(l) 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 this AD specifies otherwise.

(i) European  Union Aviation  Safety Agency  (EASA) AD  2021-0152R1, dated
    July 20, 2021.

(ii) [Reserved].

(3) For EASA AD  2021-0152R1, contact 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 the
    EASA material on the EASA website 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  at https://www.regulations.gov by searching  for and
    locating Docket No. FAA-2021-1176.

(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
    fr.inspection@nara.gov,  or  go  to:  https://www.archives.gov/federal
    -register/cfr/ibr-locations.html.

Issued  on  March  10,  2022.  Lance  T.  Gant,  Director,  Compliance   &
Airworthiness Division, Aircraft Certification Service.

FOR  FURTHER   INFORMATION  CONTACT:   Hal  Jensen,   Aerospace  Engineer,
Operational  Safety Branch,  FAA, 950  L'Enfant Plaza  SW, Washington,  DC
20024; telephone: (202) 267-9167; email: hal.jensen@faa.gov.
PREAMBLE 

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration


14 CFR Part 39

[Docket No. FAA-2021-1176; Project Identifier MCAI-2021-00755-R;
Amendment 39-21978; AD 2022-06-12]
RIN 2120-AA64

Airworthiness Directives; Airbus Helicopters

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for
certain Airbus Helicopters Model SA330J helicopters. This AD was
prompted by a review of Model EC225LP helicopter data that revealed
potential tightening torque loss of the attachment screws of the upper
deck fittings of the three main gearbox (MGB) suspension bars. Due to
design similarities, the MGB right-hand (RH) rear fittings and MGB RH
rear fitting attachment screws on Model SA330J helicopters could also
be affected. Additional analysis confirmed that the service life limit
(life limit) (SLL) for these affected MGB RH rear fittings needs to be
reduced for helicopters on which these affected parts were operated
concurrently with metallic main rotor blades installed. This AD
requires determining the damage value and SLL of each affected MGB RH
rear fitting, replacing each affected MGB RH rear fitting with a new
part, and replacing the MGB RH rear fitting attachment screws, 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 May 9, 2022.

The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of May 9, 2022.

ADDRESSES: For EASA material incorporated by reference (IBR) in this
final rule, contact 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 the EASA 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 at https://www.regulations.gov by
searching for and locating Docket No. FAA-2021-1176.

Examining the AD Docket


You may examine the AD docket at https://www.regulations.gov by
searching for and locating Docket No. FAA-2021-1176; 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
European Union Aviation Safety Agency (EASA) AD, 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: Hal Jensen, Aerospace Engineer,
Operational Safety Branch, FAA, 950 L'Enfant Plaza SW, Washington, DC
20024; telephone: (202) 267-9167; email: hal.jensen@faa.gov.

SUPPLEMENTARY INFORMATION:

Background


EASA, which is the Technical Agent for the Member States of the
European Union, has issued EASA AD 2021-0152R1, dated July 20, 2021
(EASA AD 2021-0152R1), to correct an unsafe condition for Airbus
Helicopters (formerly Eurocopter, Eurocopter France, Aerospatiale, Sud
Aviation) Model SA 330 J helicopters, all serial numbers, which were
modified in service in accordance with the instructions of Eurocopter
France Service Bulletin (SB) No. 01.20 (part of which is the in-service
retrofit Modification (Mod) 07 40043), except those on which each
affected part (as defined in EASA AD 2021-0152R1) was replaced with a
new part (not previously installed) during embodiment of Eurocopter France
SB No. 01.20 in service.

The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 by adding an AD that would apply to certain Airbus
Helicopters Model SA330J helicopters. The NPRM published in the Federal
Register on January 13, 2022 (87 FR 2085). The NPRM was prompted by a
review of Model EC225LP helicopter in-service data that revealed
potential tightening torque loss of the attachment screws of the upper
deck fittings of the three MGB suspension bars. The FAA issued AD 2020-
06-12, Amendment 39-19881 (85 FR 19077, April 6, 2020) to address the
unsafe condition on Model EC225LP helicopters). Due to design
similarities, the MGB RH rear fittings and MGB RH rear fitting
attachment screws on Model SA330J helicopters could also be affected.
Additional analysis confirmed that the SLL for these affected MGB RH
rear fittings needs to be reduced for helicopters on which these
affected parts were operated concurrently with metallic main rotor
blades (pre-Airbus Helicopters Modification 07 40043) installed. Airbus
Helicopters Modification 07 40043 introduced the installation of
composite main rotor blades. The NPRM proposed to require determining
the damage value and SLL of each affected MGB RH rear fitting,
replacing each affected MGB RH rear fitting with a new part, and
replacing the MGB RH rear fitting attachment screws, as specified in
EASA AD 2021-0152R1.

The FAA is issuing this AD to address tightening torque loss of the
attachment screws of the upper deck fittings of the three MGB
suspension bars. The unsafe condition, if not addressed, could result
in structural failure of the MGB RH rear fittings and MGB RH rear
fitting attachment screws, resulting in detachment of the MGB
suspension bars and consequent loss of control of the helicopter. See
EASA AD 2021-0152R1 for additional background information.

Discussion of Final Airworthiness Directive

Comments


The FAA received no comments on the NPRM or on the determination of
the costs.

Conclusion


These helicopters have been approved by EASA and are approved for
operation in the United States. Pursuant to the FAA's bilateral
agreement with the European Union, EASA has notified the FAA about the
unsafe condition described in its AD. The FAA reviewed the relevant
data and determined that air safety requires adopting this AD as
proposed. Accordingly, the FAA is issuing this AD to address the unsafe
condition on these helicopters. Except for minor editorial changes,
this AD is adopted as proposed in the NPRM.

Related Service Information Under 1 CFR Part 51


EASA AD 2021-0152R1 requires determining the damage value of each
affected MGB RH rear fitting by calculating the damage caused during
the time each affected part was operated concurrently with metallic
main rotor blades installed on the helicopter, calculating the SLL for
each affected MGB RH rear fitting, and eventually replacing each
affected MGB RH rear fitting and the MGB RH rear fitting attachment
screws with new parts. 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 15 helicopters of U.S.
Registry. Labor rates are estimated at $85 per work-hour. Based on
these numbers, 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
Determine damage value and SLL 1 work-hours x $85 per hour = $85
$0
$85
$1,275
Replace parts 8 work-hours x $85 per hour = $680
7,540
8,220
123,300

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: