(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.
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:
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