[Federal Register Volume 84, Number 134 (Friday, July 12, 2019)]
[Proposed Rules]
[Pages 33185-33189]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2019-14045]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2019-0479; Product Identifier 2019-NM-020-AD]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc., Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
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SUMMARY: The FAA proposes to supersede Airworthiness Directive (AD)
2009-09-02, which applies to certain Bombardier, Inc., Model DHC-8-400
series airplanes. AD 2009-09-02 requires repetitive inspections for
damage of certain main landing gear (MLG) forward stabilizer brace
assemblies, repetitive inspections for cracking of both MLG forward
stabilizer braces, liquid penetrant inspections for cracking, and
corrective actions if necessary. Since the FAA issued AD 2009-09-02,
the FAA has determined that the installation of an elbow restrictor is
necessary to address the unsafe condition which would extend the
repetitive inspection interval. This proposed AD would retain the
existing actions and also require installation of an elbow restrictor.
The FAA is proposing this AD to address the unsafe condition on these
products.
DATES: The FAA must receive comments on this proposed AD by August 26,
2019.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
Fax: 202-493-2251.
Mail: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE, Washington, DC 20590.
Hand Delivery: Deliver to Mail address above between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
For Bombardier service information identified in this NPRM, contact
Bombardier, Inc., Q-Series Technical Help Desk, 123 Garratt Boulevard,
Toronto, Ontario M3K 1Y5, Canada; telephone 416-375-4000; fax 416-375-
4539; email [email protected]; internet http://www.bombardier.com. For Goodrich service information identified in this
NPRM, contact Collins Aerospace, 1400 South Service Road West,
Oakville, Ontario L6L 5Y7, Canada; telephone: 905-827-7777. You may
view this referenced service information at the FAA, Transport
Standards Branch, 2200 South 216th St., Des Moines, WA. For information
on the availability of this material at the FAA, call 206-231-3195.
Examining the AD Docket
You may examine the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2019-
0479; 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 NPRM, the regulatory evaluation, any comments received, and other
information. The street address for Docket Operations is listed above.
Comments will be available in the AD docket shortly after receipt.
FOR FURTHER INFORMATION CONTACT: Andrea Jimenez, Aerospace Engineer,
Airframe and Mechanical Systems Section, FAA, New York ACO Branch, 1600
Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7330;
fax 516-794-5531; email [email protected].
SUPPLEMENTARY INFORMATION:
[[Page 33186]]
Comments Invited
The FAA invites you to send any written relevant data, views, or
arguments about this proposal. Send your comments to an address listed
under the ADDRESSES section. Include ``Docket No. FAA-2019-0479;
Product Identifier 2019-NM-020-AD'' at the beginning of your comments.
The FAA specifically invites comments on the overall regulatory,
economic, environmental, and energy aspects of this proposed AD. The
FAA will consider all comments received by the closing date and may
amend this proposed AD based on those comments.
The FAA will post all comments, without change, to http://www.regulations.gov, including any personal information you provide.
The FAA will also post a report summarizing each substantive verbal
contact the agency receives about this proposed AD.
Discussion
The FAA issued AD 2009-09-02, Amendment 39-15888 (74 FR 18121,
April 21, 2009) (``AD 2009-09-02''), for certain Bombardier Model DHC-
8-400 series airplanes. AD 2009-09-02 requires inspections for damage
(including excessive wear, corrosion, foreign object damage, and
cracking) of certain MLG forward stabilizer brace assemblies and
applicable corrective actions; and repetitive inspections for cracking
of both MLG forward stabilizer braces, applicable liquid penetrant
inspections for cracking, and corrective actions if necessary. AD 2009-
09-02 resulted from reports of failures of the aft hinge of the MLG
forward stabilizer brace due to fatigue cracks. The FAA issued AD 2009-
09-02 to address failure of the stabilizer brace, which could result in
the collapse of the MLG.
Actions Since AD 2009-09-02 Was Issued
Since the FAA issued AD 2009-09-02, the FAA has determined that the
installation of an elbow restrictor is necessary to address the unsafe
condition which would extend the repetitive inspection interval.
Transport Canada Civil Aviation (TCCA), which is the aviation
authority for Canada, has issued Canadian AD CF-2009-11R2, dated May
31, 2018 (referred to after this as the Mandatory Continuing
Airworthiness Information, or ``the MCAI''), to correct an unsafe
condition for certain Model DHC-8-400 series airplanes. The MCAI
states:
Several reports have been received on failures of the aft hinge
of the main landing gear (MLG) forward stabilizer brace. Laboratory
examinations have found that the fatigue cracks were initiated from
the dowel pin hole at the aft hinge lug of the MLG forward
stabilizer brace where the stop bracket is attached. Failure of the
stabilizer brace could result in the collapse of the main landing
gear.
The initial issue of this [Canadian] AD mandated initial
inspections, repetitive inspections and rectification, as required,
of the MLG forward stabilizer brace.
Revision 1 of this [Canadian] AD mandated installation of an
Elbow Restrictor (P/N 46610-1) to the MLG Down-lock Actuators as
terminating action to the repeat inspections in Part I. The repeat
inspections in Part IV are required for all Forward Stabilizer Brace
Assemblies (P/N 46401-7) after Installation of the Elbow Restrictor
(P/N 46610-1).
Revision 2 of this [Canadian] AD, in Part III, gives credit for
the accomplishment of earlier revisions of Bombardier Service
Bulletin SB 84-32-69 and clarifies, in Part IV, when the initial and
repeat inspections are required following the installation of the
elbow restrictor (P/N 46610-1) in Part III of this [Canadian] AD.
Required actions include repetitive inspections for damage of
certain MLG forward stabilizer brace assemblies, repetitive inspections
for cracking of both MLG forward stabilizer braces, applicable liquid
penetrant inspections for cracking, applicable corrective actions
including repair or replacement if necessary, rework of the MLG forward
stabilizer brace, and installation of an elbow restrictor. You may
examine the MCAI in the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2019-
0479.
Related Service Information Under 1 CFR Part 51
Bombardier has issued Service Bulletin 84-32-69, Revision C, dated
January 20, 2011. This service information describes procedures for
installing an elbow restrictor with part number (P/N) 46610-1.
Bombardier has issued Service Bulletin 84-32-76, Revision B, dated
August 1, 2018. This service information describes procedures for
replacing the standard elbow fitting at the retract port of the lock
actuator with a new custom elbow fitting.
Bombardier has also issued Q400 All Operator Message 338, dated
February 23, 2009, which the Director of the Federal Register approved
for incorporation by reference as of May 6, 2009 (74 FR 18121, April
21, 2009).
Bombardier has issued Repair Drawing 8/4-32-099, Issue 4, dated
September 4, 2018. This service information describes procedures for a
nondestructive inspection for damage (including excessive wear,
corrosion, foreign object damage, and cracking) of the MLG forward
stabilizer brace assembly, P/N 46401-7.
Goodrich has issued Service Concession Request 026-09, Revision H,
dated August 29, 2018. This service information describes procedures
for a nondestructive inspection for damage of the MLG forward
stabilizer brace assembly, P/N 46401-7, and applicable corrective
actions.
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.
FAA's Determination
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 the State of Design Authority,
the FAA has been notified of the unsafe condition described in the MCAI
and service information referenced above. The FAA is proposing this AD
because the FAA evaluated all the relevant information and determined
the unsafe condition described previously is likely to exist or develop
on other products of the same type design.
Proposed Requirements of This NPRM
This proposed AD would retain all requirements of AD 2009-09-02.
This proposed AD would also require accomplishing the actions specified
in the service information described previously.
Costs of Compliance
The FAA estimates that this proposed AD affects 54 airplanes of
U.S. registry.
The FAA estimates the following costs to comply with this proposed
AD:
[[Page 33187]]
Estimated Costs for Required Actions
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Cost per Cost on U.S.
Action Labor cost Parts cost product operators
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Retained actions from AD 2009-09-02... 8 work-hours x $85 per $0 $680 $36,720
hour = $680.
New proposed actions.................. 19 work-hours x $85 per 10,867 12,482 674,028
hour = $1,615.
----------------------------------------------------------------------------------------------------------------
The FAA has received no definitive data that would enable the
agency to provide cost estimates for the on-condition actions specified
in this proposed AD.
According to the manufacturer, some or all of the costs of this
proposed AD may be covered under warranty, thereby reducing the cost
impact on affected individuals. The FAA does not control warranty
coverage for affected individuals. As a result, the FAA has included
all known costs in the cost estimate.
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.
This proposed AD is issued in accordance with authority delegated
by the Executive Director, Aircraft Certification Service, as
authorized by FAA Order 8000.51C. In accordance with that order,
issuance of ADs is normally a function of the Compliance and
Airworthiness Division, but during this transition period, the
Executive Director has delegated the authority to issue ADs applicable
to transport category airplanes and associated appliances to the
Director of the System Oversight Division.
Regulatory Findings
The FAA determined that this proposed AD would not have federalism
implications under Executive Order 13132. This proposed AD would 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 this proposed
regulation:
(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 Proposed Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA proposes to amend 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 removing Airworthiness Directive (AD)
2009-09-02, Amendment 39-15888 (74 FR 18121, April 21, 2009), and
adding the following new AD:
Bombardier, Inc.: Docket No. FAA-2019-0479; Product Identifier 2019-
NM-020-AD.
(a) Comments Due Date
The FAA must receive comments by August 26, 2019.
(b) Affected ADs
This AD replaces AD 2009-09-02, Amendment 39-15888 (74 FR 18121,
April 21, 2009) (``AD 2009-09-02'').
(c) Applicability
This AD applies to Bombardier, Inc., Model DHC-8-400, -401, and
-402 airplanes, certificated in any category, serial numbers 4001,
4003, and subsequent, equipped with main landing gear (MLG) forward
stabilizer brace part number (P/N) 46401-7.
(d) Subject
Air Transport Association (ATA) of America Code 32, Main landing
gear.
(e) Reason
This AD was prompted by reports of failures of the aft hinge of
the MLG forward stabilizer brace due to fatigue cracks. The FAA is
issuing this AD to address failure of the stabilizer brace, which
could result in the collapse of the MLG.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Retained Inspection and Corrective Actions, With Revised Service
Information and Removed Reporting Requirement
This paragraph restates the requirements of paragraph (f) of AD
2009-09-02, with new service information and removed reporting
requirement. Unless already done, do the following actions:
(1) At the applicable time specified in paragraph (g)(1)(i),
(g)(1)(ii), (g)(1)(iii), or (g)(1)(iv) of this AD: Perform non-
destructive inspections for damage of the MLG forward stabilizer
brace assemblies P/N 46401-7, in accordance with Bombardier Repair
Drawing 8/4-32-099, Issue 1, dated March 10, 2009, and Goodrich
Service Concession Request 026-09, Revision B, dated March 10, 2009;
or Bombardier Repair Drawing 8/4-32-099, Issue 4, dated September 4,
2018, and Goodrich Service Concession Request 026-09, Revision H,
dated August 29, 2018. Repeat the inspection thereafter at intervals
not to exceed 2,000 flight cycles. As of the effective date of this
AD, use Bombardier Repair Drawing 8/4-32-099, Issue 4, dated
September 4, 2018, and Goodrich Service Concession Request 026-09,
Revision H, dated August 29, 2018, for the actions required by this
paragraph.
(i) For airplanes with MLG forward stabilizer braces that have
accumulated 12,000 or more total flight cycles as of May 6, 2009
(the effective date of AD 2009-09-02): Inspect within 50 flight
cycles after May 6, 2009.
(ii) For airplanes with MLG forward stabilizer braces that have
accumulated 9,000 or more total flight cycles but fewer than 12,000
total flight cycles as of May 6, 2009 (the effective date of AD
2009-09-02): Inspect before the accumulation of 12,050 total flight
cycles, or within 500 flight cycles after May 6, 2009, whichever
occurs earlier.
(iii) For airplanes with MLG forward stabilizer braces that have
accumulated 4,500 or more total flight cycles but fewer than 9,000
total flight cycles as of May 6, 2009 (the effective date of AD
2009-09-02): Inspect before the accumulation of 9,500 total flight
[[Page 33188]]
cycles, or within 1,500 flight cycles after May 6, 2009, whichever
occurs earlier.
(iv) For airplanes with MLG forward stabilizer braces that have
accumulated fewer than 4,500 total flight cycles as of May 6, 2009
(the effective date of AD 2009-09-02): Inspect before the
accumulation of 6,000 total flight cycles.
(2) If any damage is found during any inspection required by
paragraph (g)(1) of this AD, before further flight, do all
applicable corrective actions in accordance with Goodrich Service
Concession Request 026-09, Revision B, dated March 10, 2009; or
Goodrich Service Concession Request 026-09, Revision H, dated August
29, 2018; except as provided by paragraphs (g)(3), (g)(4), (g)(5),
and (g)(6) of this AD. As of the effective date of this AD, use
Goodrich Service Concession Request 026-09, Revision H, dated August
29, 2018, for the actions required by this paragraph.
(3) For airplanes on which step 24. of Goodrich Service
Concession Request 026-09, Revision B, dated March 10, 2009, has
been done: Within 1,200 flight cycles after May 6, 2009 (the
effective date of AD 2009-09-02), rework the MLG forward stabilizer
brace, and except for airplanes on which the rework has been done,
within 600 flight cycles after May 6, 2009, do a detailed visual
inspection for damage of the stabilizer brace apex lugs, in
accordance with Goodrich Service Concession Request 026-09, Revision
B, dated March 10, 2009; or Goodrich Service Concession Request 026-
09, Revision H, dated August 29, 2018. If any damage is found,
repair before further flight in accordance with Section C of
Goodrich Service Concession Request 026-09, Revision B, dated March
10, 2009; or Section C of Goodrich Service Concession Request 026-
09, Revision H, dated August 29, 2018. As of the effective date of
this AD, use Goodrich Service Concession Request 026-09, Revision H,
dated August 29, 2018, for the actions required by this paragraph.
(4) At the applicable time specified in paragraph (g)(4)(i),
(g)(4)(ii), or (g)(4)(iii) of this AD, replace the forward
stabilizer brace assembly, in accordance with Goodrich Service
Concession Request 026-09, Revision B, dated March 10, 2009; or
Goodrich Service Concession Request 026-09, Revision H, dated August
29, 2018. As of the effective date of this AD, use Goodrich Service
Concession Request 026-09, Revision H, dated August 29, 2018, for
the actions required by this paragraph.
(i) For airplanes on which cracking is found during any
inspection required by this AD, and the cracking exceeds the limit
specified in paragraph (g)(4)(i)(A) or (g)(4)(i)(B) of this AD, as
applicable: Replace the assembly before further flight.
(A) For cracking found before the effective date of this AD: The
limit specified in Section C of Goodrich Service Concession Request
026-09, Revision B, dated March 10, 2009.
(B) For cracking found on or after the effective date of this
AD: The limit specified in Section C or Section D of Goodrich
Service Concession Request 026-09, Revision H, dated August 29,
2018.
(ii) For airplanes on which any cracking is found after the
rework specified in Section C of Goodrich Service Concession Request
026-09, Revision B, dated March 10, 2009; or specified in Section C
or Section D of Goodrich Service Concession Request 026-09, Revision
H, dated August 29, 2018: Replace the assembly before further
flight.
(iii) For airplanes on which no cracking is found after the
rework specified in Section C of Goodrich Service Concession Request
026-09, Revision B, dated March 10, 2009; or specified in Section C
or Section D of Goodrich Service Concession Request 026-09, Revision
H, dated August 29, 2018: Replace the assembly within 2,700 flight
cycles after doing the rework.
(5) If foreign object damage is found during any inspection
required by this AD, or if damage is found to a forward stabilizer
brace lug or stop bracket retention hole apex bushing, before
further flight, repair using a method approved by the Manager, New
York ACO Branch, FAA; or Transport Canada Civil Aviation (TCCA); or
Bombardier, Inc.'s TCCA Design Approval Organization (DAO). If
approved by the DAO, the approval must include the DAO-authorized
signature.
(6) If any crack is found during the visual inspection under 10X
magnification, repair before further flight, in accordance with
Goodrich Service Concession Request 026-09, Revision B, dated March
10, 2009; or Goodrich Service Concession Request 026-09, Revision H,
dated August 29, 2018. As of the effective date of this AD, use
Goodrich Service Concession Request 026-09, Revision H, dated August
29, 2018, for the actions required by this paragraph.
(7) Before the accumulation of 6,000 total flight cycles on the
MLG forward stabilizer braces, or within 600 flight hours after May
6, 2009 (the effective date of AD 2009-09-02), whichever occurs
later: Do a detailed visual inspection for cracking of both MLG
forward stabilizer braces and do all applicable liquid penetrant
inspections for cracking, in accordance with Bombardier Q400 All
Operator Message 338, dated February 23, 2009. Repeat the inspection
thereafter at intervals not to exceed 600 flight hours. If any
cracking is found during any inspection required by this paragraph,
repair before further flight in accordance with Bombardier Repair
Drawing 8/4-32-099, Issue 1, dated March 10, 2009, and Goodrich
Service Concession Request 026-09, Revision B, dated March 10, 2009;
or Bombardier Repair Drawing 8/4-32-099, Issue 4, dated September 4,
2018, and Goodrich Service Concession Request 026-09, Revision H,
dated August 29, 2018. As of the effective date of this AD, use
Bombardier Repair Drawing 8/4-32-099, Issue 4, dated September 4,
2018, and Goodrich Service Concession Request 026-09, Revision H,
dated August 29, 2018, to repair cracking found during any
inspection required by this paragraph.
(h) New Requirement of This AD: Installation of Elbow Restrictor
Within 2,000 flight hours or 12 months, whichever occurs first,
from the effective date of this AD: Install an elbow restrictor, P/N
46610-1, in accordance with the Accomplishment Instructions of
Bombardier Service Bulletin 84-32-69, Revision C, dated January 20,
2011.
(i) Terminating Actions
(1) Installation of an elbow restrictor as required by paragraph
(h) of this AD terminates the repetitive inspection requirements of
paragraphs (g)(1) and (g)(7) of this AD.
(2) Installation of an elbow restrictor as required by paragraph
(h) of this AD terminates the replacement of the forward stabilizer
brace assembly requirement of paragraph (g)(4)(iii) of this AD.
(j) New Requirement of This AD: Revised Repetitive Inspections of the
MLG Forward Stabilizer Brace
(1) Within 2,000 flight cycles after the installation specified
in paragraph (h) of this AD, or within 12 months after the effective
date, whichever occurs later, do the non-destructive inspection, in
accordance with Bombardier Repair Drawing 8/4-32-099, Issue 4, dated
September 4, 2018, and Goodrich Service Concession Request 026-09,
Revision H, dated August 29, 2018. Thereafter, repeat the non-
destructive inspection at the times specified in paragraph (j)(2) of
this AD.
(2) Repeat the non-destructive inspection required in paragraph
(j)(1) of this AD at the applicable intervals specified in
paragraphs (j)(2)(i), (j)(2)(ii), and (j)(2)(iii) of this AD.
(i) For forward stabilizer braces, P/N 46401-7, that have not
had any required rework done, as specified in Goodrich Service
Concession Request 026-09, Section C or D, and have had Bombardier
Service Bulletin 84-32-69 or Bombardier Service Bulletin 84-32-76
incorporated: Do the non-destructive inspection at intervals not to
exceed 6,000 flight cycles.
(ii) For forward stabilizer braces, P/N 46401-7, that have been
reworked in accordance with Goodrich Service Concession Request 026-
09, Section D, and have had Bombardier Service Bulletin 84-32-69 or
Bombardier Service Bulletin 84-32-76 incorporated: Do the non-
destructive inspection at intervals not to exceed 6,000 flight
cycles.
(iii) For forward stabilizer braces, P/N 46401-7, that have been
reworked in accordance with Goodrich Service Concession Request 026-
09, Section C, and have had Bombardier Service Bulletin 84-32-69 or
Bombardier Service Bulletin 84-32-76 incorporated: Do the non-
destructive inspection at intervals not to exceed 3,000 flight
cycles.
(k) Acceptable Method of Compliance for Paragraph (h) of This AD
Replacing the standard elbow fitting at the retract port of the
lock actuator with a new custom elbow fitting in accordance with the
Accomplishment Instructions of Bombardier Service Bulletin 84-32-76,
Revision B, dated August 1, 2018, is an acceptable method of
compliance for the installation required by paragraph (h) of this
AD.
(l) Credit for Previous Actions
(1) This paragraph provides credit for actions required by
paragraph (h) of this AD, if those actions were performed before the
effective date of this AD using the service information in paragraph
(l)(1)(i), (l)(1)(ii), or (l)(1)(iii) of this AD.
[[Page 33189]]
(i) Bombardier Service Bulletin 84-32-69, dated June 30, 2009.
(ii) Bombardier Service Bulletin 84-32-69, Revision A, dated
August 19, 2009.
(iii) Bombardier Service Bulletin 84-32-69, Revision B, dated
September 17, 2009.
(2) This paragraph provides credit for actions specified in
paragraph (j) of this AD, if those actions were performed before the
effective date of this AD using the service information in paragraph
(l)(2)(i), (l)(2)(ii), or (l)(2)(iii) of this AD.
(i) Bombardier Repair Drawing 8/4-32-099, Issue 1, dated March
10, 2009, and Goodrich Service Concession Request 026-09, Revision
B, dated March 10, 2009.
(ii) Bombardier Repair Drawing 8/4-32-099, Issue 2, dated April
20, 2009, and Goodrich Service Concession Request 026-09, Revision
C, dated April 17, 2009.
(iii) Bombardier Repair Drawing 8/4-32-099, Issue 3, dated
December 3, 2009, and Goodrich Service Concession Request 026-09,
Revision D, dated November 27, 2009.
(3) This paragraph provides credit for actions performed using
the method of compliance specified in paragraph (k) of this AD, if
those actions were performed before the effective date of this AD
using the service information in paragraph (l)(3)(i) or (l)(3)(ii)
of this AD.
(i) Bombardier Service Bulletin 84-32-76, dated May 20, 2010.
(ii) Bombardier Service Bulletin 84-32-76, Revision A, dated
June 19, 2014.
(m) Other FAA AD Provisions
(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. AMOCs approved previously in
accordance with AD 2009-09-02 are approved as AMOCs for the
corresponding requirements in paragraph (g) of this AD.
(2) Contacting the Manufacturer: For any requirement in this AD
to obtain corrective actions from a manufacturer, the action must be
accomplished using a method approved by the Manager, New York ACO
Branch, FAA; or TCCA; or Bombardier, Inc.'s TCCA DAO. If approved by
the DAO, the approval must include the DAO-authorized signature.
(n) Related Information
(1) Refer to Mandatory Continuing Airworthiness Information
(MCAI) Canadian AD CF-2009-11R2, dated May 31, 2018, for related
information. This MCAI may be found in the AD docket on the internet
at http://www.regulations.gov by searching for and locating Docket
No. FAA-2019-0479.
(2) For more information about this AD, contact Andrea Jimenez,
Aerospace Engineer, Airframe and Mechanical Systems Section, FAA,
New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY
11590; telephone 516-228-7330; fax 516-794-5531; email [email protected].
(3) For service information identified in this AD, contact
Bombardier, Inc., Q-Series Technical Help Desk, 123 Garratt
Boulevard, Toronto, Ontario M3K 1Y5, Canada; telephone 416-375-4000;
fax 416-375-4539; email [email protected]; internet
http://www.bombardier.com. For Goodrich service information
identified in this NPRM, contact Collins Aerospace, 1400 South
Service Road West, Oakville, Ontario L6L 5Y7, Canada; telephone:
905-827-7777. You may view this service information at the FAA,
Transport Standards Branch, 2200 South 216th St., Des Moines, WA.
For information on the availability of this material at the FAA,
call 206-231-3195.
Issued in Des Moines, Washington, on June 26, 2019.
Dionne Palermo,
Acting Director, System Oversight Division, Aircraft Certification
Service.
[FR Doc. 2019-14045 Filed 7-11-19; 8:45 am]
BILLING CODE 4910-13-P