Rule2023-27427
Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Published
December 14, 2023
Effective
January 18, 2024
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is adopting a new airworthiness directive (AD) for all MHI RJ Aviation ULC Model CL-600-2B19 (Regional Jet Series 100 & 440), CL-600-2C10 (Regional Jet Series 700, 701 & 702), CL-600-2C11 (Regional Jet Series 550), CL-600-2D15 (Regional Jet Series 705), CL-600-2D24 (Regional Jet Series 900), and CL-600-2E25 (Regional Jet Series 1000) airplanes. This AD was prompted by reports of power control unit (PCU) rod end fractures due to pitting corrosion, and a determination that new or more restrictive airworthiness limitations are necessary. This AD requires, for certain airplanes, revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. This AD also requires accomplishing certain aircraft maintenance manual (AMM) tasks and corrective actions following short-term or long-term storage. The FAA is issuing this AD to address the unsafe condition on these products.
Full Text
<html>
<head>
<title>Federal Register, Volume 88 Issue 239 (Thursday, December 14, 2023)</title>
</head>
<body><pre>
[Federal Register Volume 88, Number 239 (Thursday, December 14, 2023)]
[Rules and Regulations]
[Pages 86574-86578]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2023-27427]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2023-1639; Project Identifier MCAI-2023-00109-T;
Amendment 39-22604; AD 2023-23-02]
RIN 2120-AA64
Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate
Previously Held by Bombardier, Inc.) Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all
MHI RJ Aviation ULC Model CL-600-2B19 (Regional Jet Series 100 & 440),
CL-600-2C10 (Regional Jet Series 700, 701 & 702), CL-600-2C11 (Regional
Jet Series 550), CL-600-2D15 (Regional Jet Series 705), CL-600-2D24
(Regional Jet Series 900), and CL-600-2E25 (Regional Jet Series 1000)
airplanes. This AD was prompted by reports of power control unit (PCU)
rod end fractures due to pitting corrosion, and a determination that
new or more restrictive airworthiness limitations are necessary. This
AD requires, for certain airplanes, revising the existing maintenance
or inspection program, as applicable, to incorporate new or more
restrictive airworthiness limitations. This AD also requires
accomplishing certain aircraft maintenance manual (AMM) tasks and
corrective actions following short-term or long-term storage. The FAA
is issuing this AD to address the unsafe condition on these products.
DATES: This AD is effective January 18, 2024.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of January 18,
2024.
ADDRESSES:
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2023-1639; 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 mandatory continuing airworthiness
information (MCAI), 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.
Material Incorporated by Reference:
[[Page 86575]]
<bullet> For service information identified in this final rule,
contact MHI RJ Aviation Group, Customer Response Center, 3655 Ave. des
Grandes-Tourelles, Suite 110, Boisbriand, Qu[eacute]bec J7H 0E2 Canada;
North America toll-free telephone 833-990-7272 or direct-dial telephone
450-990-7272; fax 514-855-8501; email <a href="/cdn-cgi/l/email-protection#285c404c064b5a4268144908405a4d4e15" http: mhirj.com">mhirj.com</a>">thd.crj@<a href="http://mhirj.com">mhirj.com</a></a>; website
<a href="http://mhirj.com">mhirj.com</a>.
<bullet> You may view this 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 at
<a href="http://regulations.gov">regulations.gov</a> under Docket No. FAA-2023-1639.
FOR FURTHER INFORMATION CONTACT: Gabriel Kim, Aviation Safety Engineer,
FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-
228-7300; email <a href="/cdn-cgi/l/email-protection#b48d99d5c2c799dacdd5d7db99d7dbc7f4d2d5d59ad3dbc2"><span class="__cf_email__" data-cfemail="f8c1d5998e8bd59681999b97d59b978bb89e9999d69f978e">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 by adding an AD that would apply to all MHI RJ Aviation ULC
Model CL-600-2B19 (Regional Jet Series 100 & 440), CL-600-2C10
(Regional Jet Series 700, 701 & 702), CL-600-2C11 (Regional Jet Series
550), CL-600-2D15 (Regional Jet Series 705), CL-600-2D24 (Regional Jet
Series 900), and CL-600-2E25 (Regional Jet Series 1000) airplanes. The
NPRM published in the Federal Register on July 28, 2023 (88 FR 48767).
The NPRM was prompted by AD CF-2023-03, dated January 20, 2023, issued
by Transport Canada, which is the aviation authority for Canada
(referred to after this as the MCAI). The MCAI states that in-service
reports of PCU rod end fractures due to pitting corrosion led to the
issuance of Transport Canada AD CF-2018-29, dated November 2, 2018
(which corresponds to FAA AD 2019-19-08, Amendment 39-19744 (84 FR
60902, November 12, 2019) (AD 2019-19-08). AD 2019-19-08 requires
detailed inspections of the elevator PCU rod ends and applicable
corrective actions, and prohibits using certain aircraft maintenance
manual tasks. Pitting corrosion can cause the PCU end rod spherical
bearing to seize, potentially inducing a bending moment on the PCU
output rod. The bending moment will eventually fracture the rod end.
This condition, if not corrected, could lead to a disconnect between
the PCU and the elevator or rudder control surface, resulting in
potential loss of the control surface function or inadequate flutter
suppression. Since Transport Canada AD CF-2018-29 was issued, MHI RJ
conducted further safety analyses and determined that new or more
restrictive airworthiness limitations are necessary for the operational
check of each individual rudder PCU and elevator PCU. Additionally,
Transport Canada determined that certain return-to-service AMM tasks
are needed following short-term or long-term airplane storage.
In the NPRM, the FAA proposed to require, for certain airplanes,
revising the existing maintenance or inspection program, as applicable,
to incorporate new or more restrictive airworthiness limitations. The
NPRM also proposed to require accomplishing certain aircraft
maintenance manual (AMM) tasks and corrective actions following short-
term or long-term storage. The FAA is issuing this AD to address
fractured PCU rod ends. This condition, if not addressed, could lead to
a disconnect between the PCU and the elevator or rudder control
surface, resulting in potential loss of the control surface function or
inadequate flutter suppression.
You may examine the MCAI in the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2023-1639.
Discussion of Final Airworthiness Directive
Comments
The FAA received a comment from Air Line Pilots Association,
International, who supported the NPRM without change.
The FAA received additional comments from two commenters, including
Air Wisconsin Airlines and MHI RJ Aviation ULC. The following presents
the comments received on the NPRM and the FAA's response to each
comment.
Request To Match MCAI Language
Air Wisconsin Airlines requested that the phrase ``or later
revisions of these tasks,'' as found in the Canadian AD, be added to
any AMM revisions in the NPRM. Air Wisconsin stated that this phrase
could help avoid the need for an AMOC at every AMM revision.
The FAA does not agree to the requested change. Specifying in an AD
the use of ``later revisions'' of required service information, which
do not exist at the time a final rule is published, violates the
policies of the Office of the Federal Register (OFR) for material that
is incorporated by reference. This AD has not been changed regarding
this request.
Request To Correct Error in Required Actions
MHI RJ requested that the reference to MRM TR ALI-0759 be deleted
from paragraph (i)(1) of the proposed AD, ``Required Actions for Model
CL-600-2E25 Airplanes,'' because that TR is not applicable to those
airplanes. The commenter noted that this would agree with the MCAI.
The FAA agrees to the requested change. The reference to TR ALI-
0759 has been deleted from paragraph (i)(1) of this AD.
Conclusion
This product has been approved by the aviation authority of another
country and is approved for operation in the United States. Pursuant to
the FAA's bilateral agreement with this State of Design Authority, it
has notified the FAA of the unsafe condition described in the MCAI
referenced above. The FAA reviewed the relevant data, considered the
comments received, and determined that air safety requires adopting
this AD as proposed. Accordingly, the FAA is issuing this AD to address
the unsafe condition on this product. Except for minor editorial
changes, and any other changes described previously, this AD is adopted
as proposed in the NPRM. None of the changes will increase the economic
burden on any operator.
Related Service Information Under 1 CFR Part 51
The FAA reviewed MHI RJ Temporary Revisions ALI-0757 and ALI-0759,
both dated September 24, 2021. This service information specifies new
or more restrictive airworthiness limitations for the elevator and
rudder PCUs.
The FAA also reviewed the following service information. This
service information specifies, among other tasks, operational tests of
the rudder control and elevator control systems, and detailed
inspections of the rudder PCU rod end spherical ball and elevator PCU
rod end spherical ball, and corrective actions. Corrective actions
include making sure that the applicable parts are moving or rotating
correctly. These documents are distinct since they apply to different
airplane models in different configurations.
<bullet> Task 27-21-00-710-805, Operational Test of the Rudder
Control System, Subject 27-21-00, Rudder Control System, Chapter 27,
Flight Controls, of MHI RJ CRJ200 Aircraft Maintenance Manual, CSP A-
001, Revision 66, dated October 10, 2022.
<bullet> Task 27-23-01-220-801, Detailed Inspection of the Rudder
PCU Rod End Spherical Ball, Subject 27-23-01, Power
[[Page 86576]]
Control Unit (PCU), Rudder, Chapter 27, Flight Controls, of MHI RJ
CRJ200 Aircraft Maintenance Manual, CSP A-001, Revision 66, dated
October 10, 2022.
<bullet> Task 27-31-00-710-803, Operational Test of the Elevator
Control System, Subject 27-31-00, Elevator Control System, Chapter 27,
Flight Controls, of MHI RJ CRJ200 Aircraft Maintenance Manual, CSP A-
001, Revision 66, dated October 10, 2022.
<bullet> Task 27-33-01-220-801, Detailed Inspection of the Elevator
PCU Rod End Spherical Ball, Subject 27-33-01, Power Control Unit (PCU),
Elevator, Chapter 27, Flight Controls, of MHI RJ CRJ200 Aircraft
Maintenance Manual, CSP A-001, Revision 66, dated October 10, 2022.
<bullet> Task 27-23-01-220-802, Detailed Inspection of the Rudder
PCU Rod End Spherical Ball, Subject 27-23-01, Power Control Unit (PCU),
Rudder, Chapter 27, Flight Controls, of MHI RJ CRJ700/900/1000 Aircraft
Maintenance Manual, Part 2, CSP B-001, Revision 71, dated December 16,
2022.
<bullet> Task 27-23-01-710-801, Operational Test of the Rudder PCU,
Subject 27-23-01, Power Control Unit (PCU), Rudder, Chapter 27, Flight
Controls, of MHI RJ CRJ700/900/1000 Aircraft Maintenance Manual, Part
2, CSP B-001, Revision 71, dated December 16, 2022.
<bullet> Task 27-33-01-220-801, Detailed Inspection of the Elevator
PCU Rod End Spherical Ball, Subject 27-33-01, Power Control Unit (PCU),
Elevator, Chapter 27, Flight Controls, of MHI RJ CRJ700/900/1000
Aircraft Maintenance Manual, Part 2, CSP B-001, Revision 71, dated
December 16, 2022.
<bullet> Task 27-33-01-710-802, Operational Test of the Elevator
Power-Control Units (PCUs), Subject 27-33-01, Power Control Unit (PCU),
Elevator, Chapter 27, Flight Controls, of MHI RJ CRJ700/900/1000
Aircraft Maintenance Manual, Part 2, CSP B-001, Revision 71, dated
December 16, 2022.
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 1,125 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
Estimated Costs for Required Actions
----------------------------------------------------------------------------------------------------------------
Labor cost Parts cost Cost per product Cost on U.S. operators
----------------------------------------------------------------------------------------------------------------
Up to 8 work-hours x $85 per hour = $680 $0 Up to $680................ Up to $765,000.
----------------------------------------------------------------------------------------------------------------
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.
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).
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
0
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]
0
2. The FAA amends Sec. 39.13 by adding the following new airworthiness
directive:
2023-23-02 MHI RJ Aviation ULC (Type Certificate Previously Held by
Bombardier, Inc.): Amendment 39-22604; Docket No. FAA-2023-1639;
Project Identifier MCAI-2023-00109-T.
(a) Effective Date
This airworthiness directive (AD) is effective January 18, 2024.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all MHI RJ Aviation ULC (Type Certificate
previously held by Bombardier, Inc.) airplanes identified in
paragraphs (c)(1) through (6) of this AD, certificated in any
category.
(1) Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes.
(2) Model CL-600-2C10 (Regional Jet Series 700, 701, & 702)
airplanes.
(3) Model CL-600-2C11 (Regional Jet Series 550) airplanes.
(4) Model CL-600-2D15 (Regional Jet Series 705) airplanes.
(5) Model CL-600-2D24 (Regional Jet Series 900) airplanes.
(6) Model CL-600-2E25 (Regional Jet Series 1000) airplanes.
[[Page 86577]]
(d) Subject
Air Transport Association (ATA) of America Code 27, Flight
controls.
(e) Reason
This AD was prompted by reports of power control unit (PCU) rod
end fractures due to pitting corrosion and a determination that new
or more restrictive airworthiness limitations are necessary. The FAA
is issuing this AD to address fractured PCU rod ends. This
condition, if not addressed, could lead to a disconnect between the
PCU and the elevator or rudder control surface, resulting in
potential loss of the control surface function or inadequate flutter
suppression.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Actions for Model CL-600-2B19 Airplanes
For Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes:
Within 60 days after the effective date of this AD, when returning
an airplane from long-term storage (storage lasting more than 28
days), do the actions specified in paragraphs (g)(1) through (4) of
this AD. Do all applicable corrective actions before further flight.
(1) Accomplish an operational test and applicable corrective
actions, in accordance with Task 27-21-00-710-805, Operational Test
of the Rudder Control System, Subject 27-21-00, Rudder Control
System, Chapter 27, Flight Controls, of MHI RJ CRJ200 Aircraft
Maintenance Manual, CSP A-001, Revision 66, dated October 10, 2022.
(2) Accomplish an operational test and applicable corrective
actions, in accordance with Task 27-31-00-710-803, Operational Test
of the Elevator Control System, Subject 27-31-00, Elevator Control
System, Chapter 27, Flight Controls, of MHI RJ CRJ200 Aircraft
Maintenance Manual, CSP A-001, Revision 66, dated October 10, 2022.
(3) Accomplish a detailed inspection and applicable corrective
actions, in accordance with Task 27-23-01-220-801, Detailed
Inspection of the Rudder PCU Rod End Spherical Ball, Subject 27-23-
01, Power Control Unit (PCU), Rudder, Chapter 27, Flight Controls,
of MHI RJ CRJ200 Aircraft Maintenance Manual, CSP A-001, Revision
66, dated October 10, 2022.
(4) Accomplish a detailed inspection and applicable corrective
actions in accordance with Task 27-33-01-220-801, Detailed
Inspection of the Elevator PCU Rod End Spherical Ball, Subject 27-
33-01, Power Control Unit (PCU), Elevator, Chapter 27, Flight
Controls, of MHI RJ CRJ200 Aircraft Maintenance Manual, CSP A-001,
Revision 66, dated October 10, 2022.
(h) Required Actions for Model CL-600-2C10, CL-600-2C11, CL-600-2D15
and CL-600-2D24 Airplanes
For Model CL-600-2C10 (Regional Jet Series 700, 701, & 702); CL-
600-2C11 (Regional Jet Series 550); CL-600-2D15 (Regional Jet Series
705); and CL-600-2D24 (Regional Jet Series 900) airplanes:
Accomplish the actions required by paragraphs (h)(1) through (3) of
this AD, as applicable.
(1) Within 60 days after the effective date of this AD, revise
the existing maintenance or inspection program, as applicable, to
incorporate the information specified in MHI RJ Temporary Revisions
ALI-0757 and ALI-0759, both dated September 24, 2021. The initial
compliance time for doing the tasks is within 400 flight hours or 6
months, whichever occurs first after the effective date of this AD;
or within 60 days after the effective date of this AD; whichever
occurs latest.
(2) Within 60 days after the effective date of this AD, when
returning an airplane from short-term storage (storage lasting 28
days or less), do the actions specified in paragraphs (h)(2)(i) and
(ii) of this AD. Do all applicable corrective actions before further
flight.
(i) Accomplish an operational test and applicable corrective
actions, in accordance with Task 27-23-01-710-801, Operational Test
of the Rudder PCU, Subject 27-23-01, Power Control Unit (PCU),
Rudder, Chapter 27, Flight Controls, of MHI RJ CRJ700/900/1000
Aircraft Maintenance Manual, Part 2, CSP B-001, Revision 71, dated
December 16, 2022.
(ii) Accomplish an operational test and applicable corrective
actions in accordance with Task 27-33-01-710-802, Operational Test
of the Elevator Power-Control Units (PCUs), Subject 27-33-01, Power
Control Unit (PCU), Elevator, Chapter 27, Flight Controls, of MHI RJ
CRJ700/900/1000 Aircraft Maintenance Manual, Part 2, CSP B-001,
Revision 71, dated December 16, 2022.
(3) Within 60 days after the effective date of this AD, when
returning an airplane from long-term storage (storage lasting more
than 28 days), do the actions specified in paragraphs (h)(3)(i)
through (iv) of this AD. Do all applicable corrective actions before
further flight.
(i) Accomplish an operational test and applicable corrective
actions, in accordance with Task 27-23-01-710-801, Operational Test
of the Rudder PCU, Subject 27-23-01, Power Control Unit (PCU),
Rudder, Chapter 27, Flight Controls, of MHI RJ CRJ700/900/1000
Aircraft Maintenance Manual, Part 2, CSP B-001, Revision 71, dated
December 16, 2022.
(ii) Accomplish an operational test and applicable corrective
actions in accordance with Task 27-33-01-710-802, Operational Test
of the Elevator Power-Control Units (PCUs), Subject 27-33-01, Power
Control Unit (PCU), Elevator, Chapter 27, Flight Controls, of MHI RJ
CRJ700/900/1000 Aircraft Maintenance Manual, Part 2, CSP B-001,
Revision 71, dated December 16, 2022.
(iii) Accomplish a detailed inspection and applicable corrective
actions in accordance with Task 27-23-01-220-802, Detailed
Inspection of the Rudder PCU Rod End Spherical Ball, Subject 27-23-
01, Power Control Unit (PCU), Rudder, Chapter 27, Flight Controls,
of MHI RJ CRJ700/900/1000 Aircraft Maintenance Manual, Part 2, CSP
B-001, Revision 71, dated December 16, 2022.
(iv) Accomplish a detailed inspection and applicable corrective
actions, in accordance with Task 27-33-01-220-801, Detailed
Inspection of the Elevator PCU Rod End Spherical Ball, Subject 27-
33-01, Power Control Unit (PCU), Elevator, Chapter 27, Flight
Controls, of MHI RJ CRJ700/900/1000 Aircraft Maintenance Manual,
Part 2, CSP B-001, Revision 71, dated December 16, 2022.
(i) Required Actions for Model CL-600-2E25 Airplanes
For Model CL-600-2E25 (Regional Jet Series 1000) airplanes:
Accomplish the actions specified in paragraphs (i)(1) through (3) of
this AD, as applicable.
(1) Within 60 days after the effective date of this AD, revise
the existing maintenance or inspection program, as applicable, to
incorporate the information specified in MHI RJ Temporary Revision
ALI-0757, dated September 24, 2021. The initial compliance time for
doing the tasks is within 400 flight hours or 6 months, whichever
occurs first after the effective date of this AD; or within 60 days
after the effective date of this AD; whichever occurs latest.
(2) Within 60 days after the effective date of this AD, when
returning an airplane from short-term storage (storage lasting 28
days or less): Accomplish an operational test and applicable
corrective actions in accordance with Task 27-33-01-710-802,
Operational Test of the Elevator Power-Control Units (PCUs), Subject
27-33-01, Power Control Unit (PCU), Elevator, Chapter 27, Flight
Controls, of MHI RJ CRJ700/900/1000 Aircraft Maintenance Manual,
Part 2, CSP B-001, Revision 71, dated December 16, 2022. Do all
applicable corrective actions before further flight.
(3) Within 60 days after the effective date of this AD, when
returning an airplane from long-term storage (storage lasting more
than 28 days), do the actions specified in paragraphs (i)(3)(i) and
(ii) of this AD. Do all applicable corrective actions before further
flight.
(i) Accomplish an operational test and applicable corrective
actions, in accordance with Task 27-33-01-710-802, Operational Test
of the Elevator Power-Control Units (PCUs), Subject 27-33-01, Power
Control Unit (PCU), Elevator, Chapter 27, Flight Controls, of MHI RJ
CRJ700/900/1000 Aircraft Maintenance Manual, Part 2, CSP B-001,
Revision 71, dated December 16, 2022.
(ii) Accomplish a detailed inspection and applicable corrective
actions, in accordance with Task 27-33-01-220-801, Detailed
Inspection of the Elevator PCU Rod End Spherical Ball, Subject 27-
33-01, Power Control Unit (PCU), Elevator, Chapter 27, Flight
Controls, of MHI RJ CRJ700/900/1000 Aircraft Maintenance Manual,
Part 2, CSP B-001, Revision 71, dated December 16, 2022.
(j) No Alternative Actions or Intervals
After the existing maintenance or inspection program has been
revised as required by paragraphs (h)(1) and (i)(1) of this AD, no
alternative actions (e.g., inspections), or intervals may be used
unless the actions, and intervals are approved as an alternative
method of compliance (AMOC) in accordance with the procedures
specified in paragraph (k)(1) of this AD.
(k) Other FAA AD Provisions
The following provisions also apply to this AD:
[[Page 86578]]
(1) Alternative Methods of Compliance (AMOCs): 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 responsible Flight Standards Office, as
appropriate. If sending information directly to the manager,
International Validation Branch, mail it to the address identified
in paragraph (k)(2) of this AD or email to: <a href="/cdn-cgi/l/email-protection#d9e0f4988f8af498908bf4eeeae9f49894969a99bfb8b8f7beb6af"><span class="__cf_email__" data-cfemail="7c45513d2a2f513d352e514b4f4c513d31333f3c1a1d1d521b130a">[email protected]</span></a>. If mailing information, also submit information by
email. Before using any approved AMOC, notify your appropriate
principal inspector, or lacking a principal inspector, the manager
of the responsible Flight Standards Office.
(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, International
Validation Branch, FAA; or Transport Canada; or MHI RJ Aviation
ULC's Transport Canada Design Approval Organization (DAO). If
approved by the DAO, the approval must include the DAO-authorized
signature.
(l) Additional Information
(1) Refer to Transport Canada AD CF-2023-03, dated January 20,
2023, for related information. This Transport Canada AD may be found
in the AD docket at <a href="http://regulations.gov">regulations.gov</a> under Docket No. FAA-2023-1639.
(2) For more information about this AD, contact Gabriel Kim,
Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone 516-228-7300; email <a href="/cdn-cgi/l/email-protection#f1c8dc908782dc9f8890929edc929e82b1979090df969e87"><span class="__cf_email__" data-cfemail="033a2e6275702e6d7a62606c2e606c70436562622d646c75">[email protected]</span></a>.
(m) 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) MHI RJ Temporary Revision ALI-0757, dated September 24,
2021.
(ii) MHI RJ Temporary Revision ALI-0759, dated September 24,
2021.
(iii) Task 27-21-00-710-805, Operational Test of the Rudder
Control System, Subject 27-21-00, Rudder Control System, Chapter 27,
Flight Controls, of MHI RJ CRJ200 Aircraft Maintenance Manual, CSP
A-001, Revision 66, dated October 10, 2022.
(iv) Task 27-23-01-220-801, Detailed Inspection of the Rudder
PCU Rod End Spherical Ball, Subject 27-23-01, Power Control Unit
(PCU), Rudder, Chapter 27, Flight Controls, of MHI RJ CRJ200
Aircraft Maintenance Manual, CSP A-001, Revision 66, dated October
10, 2022.
(v) Task 27-31-00-710-803, Operational Test of the Elevator
Control System, Subject 27-31-00, Elevator Control System, Chapter
27, Flight Controls, of MHI RJ CRJ200 Aircraft Maintenance Manual,
CSP A-001, Revision 66, dated October 10, 2022.
(vi) Task 27-33-01-220-801, Detailed Inspection of the Elevator
PCU Rod End Spherical Ball, Subject 27-33-01, Power Control Unit
(PCU), Elevator, Chapter 27, Flight Controls, of MHI RJ CRJ200
Aircraft Maintenance Manual, CSP A-001, Revision 66, dated October
10, 2022.
(vii) Task 27-23-01-220-802, Detailed Inspection of the Rudder
PCU Rod End Spherical Ball, Subject 27-23-01, Power Control Unit
(PCU), Rudder, Chapter 27, Flight Controls, of MHI RJ CRJ700/900/
1000 Aircraft Maintenance Manual, Part 2, CSP B-001, Revision 71,
dated December 16, 2022.
(viii) Task 27-23-01-710-801, Operational Test of the Rudder
PCU, Subject 27-23-01, Power Control Unit (PCU), Rudder, Chapter 27,
Flight Controls, of MHI RJ CRJ700/900/1000 Aircraft Maintenance
Manual, Part 2, CSP B-001, Revision 71, dated December 16, 2022.
(ix) Task 27-33-01-220-801, Detailed Inspection of the Elevator
PCU Rod End Spherical Ball, Subject 27-33-01, Power Control Unit
(PCU), Elevator, Chapter 27, Flight Controls, of MHI RJ CRJ700/900/
1000 Aircraft Maintenance Manual, Part 2, CSP B-001, Revision 71,
dated December 16, 2022.
(x) Task 27-33-01-710-802, Operational Test of the Elevator
Power-Control Units (PCUs), Subject 27-33-01, Power Control Unit
(PCU), Elevator, Chapter 27, Flight Controls, of MHI RJ CRJ700/900/
1000 Aircraft Maintenance Manual, Part 2, CSP B-001, Revision 71,
dated December 16, 2022.
(3) For service information identified in this AD, contact MHI
RJ Aviation Group, Customer Response Center, 3655 Ave. des Grandes-
Tourelles, Suite 110, Boisbriand, Qu[eacute]bec J7H 0E2 Canada;
North America toll-free telephone 833-990-7272 or direct-dial
telephone 450-990-7272; fax 514-855-8501; email <a href="/cdn-cgi/l/email-protection#5d293539733e2f371d613c7d352f383b60" http: mhirj.com">mhirj.com</a>">thd.crj@<a href="http://mhirj.com">mhirj.com</a></a>;
website <a href="http://mhirj.com">mhirj.com</a>.
(4) You may view this 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.
(5) You may view this material at the National Archives and
Records Administration (NARA). For information on the availability
of this material at NARA, visit <a href="http://www.archives.gov/federal-register/cfr/ibr-locations">www.archives.gov/federal-register/cfr/ibr-locations</a>, or email <a href="/cdn-cgi/l/email-protection#0e687c2067607d7e6b6d7a6761604e606f7c6f20696178"><span class="__cf_email__" data-cfemail="dabca8f4b3b4a9aabfb9aeb3b5b49ab4bba8bbf4bdb5ac">[email protected]</span></a>.
Issued on December 5, 2023.
Ross Landes,
Deputy Director for Regulatory Operations, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2023-27427 Filed 12-13-23; 8:45 am]
BILLING CODE 4910-13-P
</pre><script data-cfasync="false" src="/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js"></script></body>
</html>Indexed from Federal Register on December 14, 2023.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.