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ADs updated daily at www.Tdata.com
2021-07-03 MHI RJ AVIATION ULC (TYPE CERTIFICATE PREVIOUSLY HELD BY BOMBARDIER, INC.): Amendment 39-21480; Docket No. FAA-2020-0913; Project Identifier MCAI-2020-00971-T.
(a) EFFECTIVE DATE

    This airworthiness directive (AD) is effective May 10, 2021.

(b) AFFECTED ADS

    This AD replaces AD 2015-05-03, Amendment 39-18113 (80 FR 13758, March
    17, 2015) (AD 2015-05-03).

(c) APPLICABILITY

    This AD applies to MHI RJ Aviation ULC Model CL-600-2B19 (Regional Jet
    Series  100 &  440) airplanes,  certificated in  any category,  serial
    numbers 7003 through 7990 inclusive, and 8000 and subsequent.

(d) SUBJECT

    Air Transport Association (ATA) of America Code 53, Fuselage.

(e) REASON

    This AD was prompted by  a determination that new or  more restrictive
    airworthiness limitations are necessary, as well as the  corresponding
    structural repairs  and modifications  to preclude  widespread fatigue
    damage (WFD). The FAA is issuing  this AD to address WFD, which  could
    adversely affect the structural integrity of the airplane.

(f) COMPLIANCE

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

(g) RETAINED REVISION OF MAINTENANCE OR INSPECTION PROGRAM,  WITH  CERTAIN
    REQUIREMENTS REMOVED AND UPDATED LANGUAGE

    This paragraph restates the requirements of paragraph (g)  of AD 2015-
    05-03, with certain requirements removed and updated language.  Within
    60 days after  April 21, 2015  (the effective date  of AD 2015-05-03):
    Revise the existing maintenance or inspection program, as  applicable,
    by incorporating the  airworthiness limitations (AWL)  tasks specified
    in paragraphs (g)(1) and (2) of this AD. The initial compliance  times
    for the tasks start from  the applicable threshold times specified  in
    Part 2 Airworthiness Requirements, Revision 9, dated June 10, 2013, of
    Appendix  B,  Airworthiness  Limitations,  of  Bombardier CL-600-2B19,
    Maintenance Requirements Manual, CSP A-053; except that, for airplanes
    that have accumulated more than 38,000 total flight cycles as of April
    21, 2015, the initial compliance time for the AWL tasks is before  the
    accumulation of 2,000 flight cycles after April 21, 2015.

(1) AWL Task 53-41-110,  Longitudinal Str. 6 splice butt strap  at Str. 6,
    FS409.0 to FS617.0, of Appendix B, Airworthiness Limitations,  of Part
    2, Airworthiness Requirements, Revision 9, dated June 10, 2013, of the
    Bombardier CL-600-2B19 Maintenance Requirements Manual, CSP A-053.

(2) AWL Task 53-41-204, Frame splice angles at STR 6 and 20, of Appendix B
    Airworthiness Limitations, of Part 2,  Airworthiness Requirements, Re-
    vision 9,  dated June 10, 2013,  of the Bombardier CL-600-2B19 Mainte-
    nance Requirements Manual, CSP A-053.

(h) RETAINED NO ALTERNATIVE ACTIONS OR INTERVALS, WITH NO CHANGES

    This paragraph restates the requirements of paragraph (h)  of AD 2015-
    05-03, with no  changes. After the  maintenance or inspection  program
    has  been  revised  as  required  by  paragraph  (g)  of  this  AD, no
    alternative  actions  (e.g.,  inspections) or  intervals  may  be used
    unless the actions or intervals are approved as an alternative  method
    of compliance (AMOC)  in accordance with  the procedures specified  in
    paragraph (n)(1) of this AD.

(i) RETAINED REPAIRS AND MODIFICATIONS, WITH CHANGED PARAGRAPH REFERENCES

    This paragraph restates the requirements of paragraph (i)  of AD 2015-
    05-03, with changed paragraph  references. Before the accumulation  of
    60,000  total  flight  cycles: Install  repairs  and  modifications to
    preclude  WFD  at  locations  specified  in  the  tasks  identified in
    paragraphs (g)(1) and (2) of this  AD, using a method approved by  the
    Manager, New York ACO, FAA; or Transport Canada Civil Aviation (TCCA);
    or MHI RJ Aviation ULC's  TCCA Design Approval Organization (DAO).  If
    approved  by the  DAO, the  approval must  include the  DAO-authorized
    signature.

(j) NEW MAINTENANCE OR INSPECTION PROGRAM REVISION

    Within 60 days after the effective date of this AD,  revise the exist-
    ing maintenance or inspection  program, as applicable, to  incorporate
    the  information  specified in  AWL  Task 53-41-207,  as  specified in
    Bombardier  Temporary  Revision  2B-2280,  dated  June  12,  2020. The
    initial compliance time for doing  the tasks is at the  time specified
    in AWL task 53-41-207,  as specified in Bombardier  Temporary Revision
    2B-2280, dated June  12, 2020, or  within 60 days  after the effective
    date of this AD, whichever occurs later.

(k) NEW NO ALTERNATIVE ACTIONS OR INTERVALS

    After the existing maintenance or inspection program has been  revised
    as required by paragraph (j) of this AD, no alternative actions (e.g.,
    inspections) or intervals may be used unless the actions or  intervals
    are approved as an AMOC in accordance with the procedures specified in
    paragraph (n)(1) of this AD.

(l) CREDIT FOR PREVIOUS ACTIONS

    This paragraph provides credit for the initial inspections required by
    the service  information specified  in paragraph  (j) of  this AD,  if
    those actions  were performed  before the  effective date  of this  AD
    using the  Bombardier repair  engineering orders  (REOs) specified  in
    Figure 1 to paragraph (l) of this AD.

      FIGURE 1 TO PARAGRAPH (L)  REOS EQUIVALENT TO INITIAL INSPECTION   
    ______________________________________________________________________
    AIRPLANE
    SERIAL
    NUMBER -                            BOMBARDIER REO -
    ______________________________________________________________________
    7168             601R-53-00-714, Revision --, dated January 30, 2019
    7437             601R-53-00-722, Revision --, dated March 28, 2019
    7574             601R-53-00-725, Revision --, dated June 4, 2019
    7667             601R-53-00-726, Revision --, dated June 4, 2019
    7640             601R-53-00-727, Revision --, dated June 25, 2019
    7636             601R-53-00-728, Revision --, dated June 15, 2019
    7400             601R-53-00-730, Revision --, dated June 20, 2019
    7660             601R-53-00-731, Revision --, dated June 20, 2019
    7638             601R-53-00-732, Revision --, dated June 24, 2019
    7523             601R-53-00-734, Revision --, dated June 25, 2019
    7425             601R-53-00-735, Revision --, dated June 25, 2019
    7568             601R-53-00-737, Revision --, dated July 15, 2019
    7873             601R-53-00-739, Revision --, dated July 15, 2019
    7536             601R-53-00-741, Revision  A, dated July 23, 2019
    7657             601R-53-00-742, Revision --, dated July 23, 2019
    7682             601R-53-00-752, Revision --, dated August 22, 2019
    7656             601R-53-00-753, Revision --, dated August 22, 2019
    7904             601R-53-00-754, Revision --, dated August 26, 2019
    7687             601R-53-00-758, Revision --, dated September 9, 2019
    7879             601R-53-00-762, Revision --, dated November 4, 2019
    7447             601R-53-00-763, Revision --, dated October 30, 2019
    7256             601R-53-00-765, Revision --, dated October 21, 2019
    7663             601R-53-00-767, Revision --, dated November 1, 2019
    7457             601R-53-00-769, Revision --, dated October 29, 2019
    7257             601R-53-00-772, Revision --, dated November 20, 2019
    7569             601R-53-00-777, Revision --, dated December 11, 2019
    7695             601R-53-00-780, Revision --, dated January 6, 2020
    7880             601R-53-00-785, Revision --, dated February 1, 2020
    7490             601R-53-00-787, Revision --, dated February 27, 2020
    7366             601R-53-00-790, Revision --, dated February 26, 2020
    7306             601R-53-00-795, Revision --, dated April 16, 2020
    7479             601R-53-00-797, Revision --, dated June 17, 2020
    7487             601R-53-00-798, Revision --, dated June 17, 2020
    7786             601R-53-00-800, Revision --, dated July 29, 2020
    7566             601R-53-00-801, Revision --, dated August 10, 2020
    7889             601R-53-00-804, Revision --, dated September 12, 2020
    7742             601R-53-00-813, Revision --, dated November 5, 2020
    7892             601R-53-00-814, Revision --, dated November 5, 2020
    ______________________________________________________________________

(m) NEW REPAIRS AND MODIFICATIONS

    Before the accumulation of 60,000 total flight cycles: Install repairs
    and modifications to preclude WFD at locations specified in the  tasks
    identified in paragraph (j) of this AD, using a method approved by the
    Manager, New York ACO,  FAA; or TCCA; or  MHI RJ Aviation ULC  's TCCA
    DAO.  If  approved by  the  DAO, the  approval  must include  the  DAO
    -authorized signature.

(n) OTHER FAA AD PROVISIONS

    The following provisions also apply to this AD:

(1) Alternative Methods of Compliance (AMOCs):  The Manager,  New York ACO
    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 certification office,  send
    it to ATTN: Program  Manager, Continuing Operational Safety,  FAA, New
    York ACO Branch, 1600 Stewart  Avenue, Suite 410, Westbury, NY  11590;
    phone: 516-228-7300; fax: 516-794-5531.

(i) 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.

(ii) AMOCs approved previously for AD 2015-05-03,  are  approved  as AMOCs
     for the corresponding provisions of paragraph (g) of this AD.

(2) Contacting the Manufacturer:  For any requirement in this AD to obtain
    instructions   from   a  manufacturer,   the   instructions  must   be
    accomplished using  a method  approved by  the Manager,  New York  ACO
    Branch, FAA; or TCCA; or MHI  RJ Aviation ULC's TCCA DAO. If  approved
    by the DAO, the approval must include the DAO-authorized signature.

(o) RELATED INFORMATION

(1) Refer to Mandatory Continuing Airworthiness Information (MCAI) TCCA AD
    CF-2014-07R1, dated July 13, 2020, for related information.  This MCAI
    may be found  in  the  AD  docket  on  the  internet  at  https://www.
    regulations.gov by searching  for  and  locating  Docket No. FAA-2020-
    0913.

(2) For more information about this AD,  contact Andrea Jimenez, Aerospace
    Engineer,  Airframe and Propulsion Section,  FAA, New York ACO Branch,
    1600 Stewart Avenue,  Suite 410,  Westbury, NY 11590;  phone: 516-228-
    7330; fax: 516-794-5531; email: 9-avs-nyaco-cos@faa.gov.

(p) 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.

(3) The following service information  was  approved  for  IBR  on May 10,
    2021.

(i) Bombardier Temporary Revision 2B-2280, dated June 12, 2020.

(ii) [Reserved]

(4) The following service information  was  approved  for IBR on April 21,
    2015 (80 FR 13758, March 17, 2015).

(i) Appendix B,  Airworthiness Limitations,  of Part 2,  Airworthiness Re-
    quirements, Revision 9, dated June 10, 2013, of the Bombardier CL-600-
    2B19 Maintenance Requirements Manual, CSP A-053:

(A) AWL Task 53-41-110,  Longitudinal Str. 6 splice butt strap  at Str. 6,
    FS409.0 to FS617.0; and

(B) AWL Task 53-41-204, Frame splice angles at STR 6 and 20.

(ii) [Reserved]

(5) For service information identified in this AD, contact MHI RJ Aviation
    ULC, 12655 Henri-Fabre Blvd., Mirabel, Quebec J7N 1E1 Canada; Widebody
    Customer Response Center North America  toll-free  phone:  +1-844-272-
    2720 or direct-dial phone +1-514-855-8500;  fax +1-514-855-8501; email
    thd.crj@mhirj.com; internet: https://mhirj.com.

(6) You may view this service information at the FAA,  Airworthiness Prod-
    ucts Section,  Operational Safety Branch,  2200 South  216th St.,  Des
    Moines, WA. For  information on the  availability of this  material at
    the FAA, call 206-231-3195.

(7) You may view this service information  that is incorporated  by refer-
    ence 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 March 18, 2021.  Gaetano A. Sciortino, Deputy Director for Stra-
tegic Initiatives,  Compliance & Airworthiness Division, Aircraft Certifi-
cation Service.

FOR FURTHER INFORMATION CONTACT: Andrea Jimenez,  Aerospace Engineer, Air-
frame and Propulsion Section, FAA, New York ACO Branch,  1600 Stewart Ave-
nue, Suite 410, Westbury, NY 11590; phone: 516-228-7330; fax: 516-794-5531
email: 9-avs-nyaco-cos@faa.gov.
PREAMBLE 

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2020-0913; Project Identifier MCAI-2020-00971-T;
Amendment 39-21480; AD 2021-07-03]
RIN 2120-AA64

Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate
Previously Held by Bombardier, Inc.) Airplanes

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

ACTION: Final rule.

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

SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2015-05-
03, which applied to certain Bombardier, Inc. Model CL-600-2B19
(Regional Jet Series 100 & 440) airplanes. AD 2015-05-03 required
revising the existing maintenance or inspection program, as applicable,
to incorporate new or revised maintenance requirements and
airworthiness limitations, and incorporating structural repairs and
modifications to preclude widespread fatigue damage (WFD). This AD
continues to require the actions specified in AD 2015-05-03. This AD
also requires revising the existing maintenance or inspection program,
as applicable, to incorporate new or more restrictive airworthiness
limitations, and incorporating additional structural repairs and
modifications to preclude WFD. This AD was prompted by a determination
that new or more restrictive airworthiness limitations are necessary,
as well as the corresponding structural repairs and modifications to
preclude WFD. The FAA is issuing this AD to address the unsafe
condition on these products.

DATES: This AD is effective May 10, 2021.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of May 10,
2021.
The Director of the Federal Register approved the incorporation by
reference of certain other publications listed in this AD as of April
21, 2015 (80 FR 13758, March 17, 2015).

ADDRESSES: For service information identified in this final rule,
contact MHI RJ Aviation ULC, 12655 Henri-Fabre Blvd., Mirabel,
Qubec J7N 1E1 Canada; Widebody Customer Response Center North
America toll-free phone: +1-844-272-2720 or direct-dial phone: +1-514-
855-8500; fax: +1-514-855-8501; email: thd.crj@mhirj.com; internet:
https://mhirj.com. You may view this referenced service information at
the FAA, Airworthiness Products Section, Operational Safety Branch,
2200 South 216th St., Des Moines, WA. For information on the
availability of this material at the FAA, call 206-231-3195. It is also
available on the internet at https://www.regulations.gov by searching
for and locating Docket No. FAA-2020-0913.

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-2020-
0913; 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: Andrea Jimenez, Aerospace Engineer,
Airframe and Propulsion Section, FAA, New York ACO Branch, 1600 Stewart
Avenue, Suite 410, Westbury, NY 11590; phone: 516-228-7330; fax: 516-
794-5531; email: 9-avs-nyaco-cos@faa.gov.

SUPPLEMENTARY INFORMATION:

Background

Transport Canada Civil Aviation (TCCA), which is the aviation
authority for Canada, has issued TCCA AD CF-2014-07R1, dated July 13,
2020 (also referred to as the Mandatory Continuing Airworthiness
Information, or the MCAI), to correct an unsafe condition for certain
MHI RJ Aviation ULC Model CL-600-2B19 (Regional Jet Series 100 & 440)
airplanes. You may examine the MCAI in the AD docket on the internet at
https://www.regulations.gov by searching for and locating Docket No.
FAA-2020-0913.
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 to supersede AD 2015-05-03, Amendment 39-18113 (80 FR
13758, March 17, 2015) (AD 2015-05-03). AD 2015-05-03 applied to
certain Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 &
440) airplanes. The NPRM published in the Federal Register on October
14, 2020 (85 FR 64987). The NPRM was prompted by a determination that
new or more restrictive airworthiness limitations are necessary, as
well as the corresponding structural repairs and modifications to
preclude WFD. The NPRM proposed to continue to require the actions
specified in AD 2015-05-03. The NPRM also proposed to require revising
the existing maintenance or inspection program, as applicable, to
incorporate additional new or more restrictive airworthiness
limitations, and incorporating structural repairs and modifications to
preclude WFD. The FAA is issuing this AD to address WFD, which could
adversely affect the structural integrity of the airplane. See the MCAI
for additional background information.

Comments

The FAA gave the public the opportunity to participate in
developing this final rule. The following presents the comment received
on the NPRM and the FAA's response to each comment.

Request To Include Credit for Actions Accomplished Using Additional
Repair Engineering Orders (REOs)


MHI RJ Aviation ULC (MHI) requested that the FAA revise the NPRM to
include credit for initial inspections accomplished using certain
Bombardier REOs that were not specified in paragraph (l) of the
proposed AD. MHI specified that, since issuance of the MCAI, it has
continued to support U.S. operators with REOs. MHI provided the
additional REOs and specified the applicable manufacturer serial number
for each specific REO.
The FAA agrees for the reasons provided. Additionally, the FAA
finds that including the additional REOs would allow operators of the
affected airplanes to receive credit for the initial inspections
required by the service information specified in paragraph (j) of this
AD if those actions were performed before the effective date of this AD
using those REOs without requesting an alternative method of
compliance. The FAA has revised figure 1 to paragraph (l) of this AD
accordingly.

Conclusion

The FAA reviewed the relevant data, considered the comment
received, and determined that air safety and the public interest
require adopting this final rule with the change described previously
and 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.
The FAA also determined that these changes will not increase the
economic burden on any operator or increase the scope of this final
rule.

Related Service Information Under 1 CFR Part 51

MHI RJ Aviation has issued Bombardier Temporary Revision 2B-2280,
dated June 12, 2020. This service information, among other actions,
describes airworthiness limitation (AWL) Task 53-41-207, which
specifies airworthiness limitations and inspections for fuselage and
longitudinal skin splices at stringers (STR) 6 and 20.
This AD also requires the following service information, which the
Director of the Federal Register approved for incorporation by
reference as of April 21, 2015 (80 FR 13758, March 17, 2015).
AWL Task 53-41-110, Longitudinal Str. 6 splice butt strap
at Str. 6, FS409.0 to FS617.0, of Appendix B, Airworthiness
Limitations, of Part 2, Airworthiness Requirements, Revision 9, dated
June 10, 2013, of the Bombardier CL-600-2B19 Maintenance Requirements
Manual, CSP A-053.
AWL Task 53-41-204, Frame splice angles at STR 6 and 20,
of Appendix B, Airworthiness Limitations, of Part 2, Airworthiness
Requirements, Revision 9, dated June 10, 2013, of the Bombardier CL-
600-2B19 Maintenance Requirements Manual, CSP A-053.
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

The FAA estimates that this AD affects 431 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
The FAA estimates the total cost per operator for the retained
actions from AD 2015-05-03 to be $7,650 (90 work-hours x $85 per work-
hour).
The FAA has determined that revising the maintenance or inspection
program takes an average of 90 work-hours per operator, although the
agency recognizes that this number may vary from operator to operator.
In the past, the agency has estimated that this action takes 1 work-
hour per airplane. Since operators incorporate maintenance or
inspection program changes for their affected fleet(s), the FAA has
determined that a per-operator estimate is more accurate than a per-
airplane estimate. Therefore, the agency estimates the average total
cost per operator to be $7,650 (90 work-hours x $85 per work-hour).
The FAA has received no definitive data that would enable us to
provide cost estimates for the repairs and modifications specified in
this AD.

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

The FAA 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 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.

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:

a. Removing Airworthiness Directive (AD) 2015-05-03, Amendment 39-18113
(80 FR 13758, March 17, 2015), and

b. Adding the following new AD: