Proposed Rule2024-22209
Airworthiness Directives; DAHER AEROSPACE (Type Certificate Previously Held by SOCATA) Airplanes
Primary source
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Published
September 30, 2024
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA proposes to adopt a new airworthiness directive (AD) for certain DAHER AEROSPACE (DAHER) (type certificate previously held by SOCATA) Model TBM 700 airplanes. This proposed AD was prompted by reports of wear of the inner flap actuator drive nut. This proposed AD would require cleaning and lubricating the internal actuator rods, measuring the play between the drive nuts and the internal actuator rods, and if any play is found, replacing the drive nuts. This proposed AD would also allow replacing the drive nuts with certain other design drive nut as terminating action for the proposed requirements. The FAA is proposing this AD to address the unsafe condition on these products.
Full Text
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<title>Federal Register, Volume 89 Issue 189 (Monday, September 30, 2024)</title>
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[Federal Register Volume 89, Number 189 (Monday, September 30, 2024)]
[Proposed Rules]
[Pages 79485-79488]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2024-22209]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2024-2321; Project Identifier MCAI-2024-00126-A]
RIN 2120-AA64
Airworthiness Directives; DAHER AEROSPACE (Type Certificate
Previously Held by SOCATA) Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
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SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
for certain DAHER AEROSPACE (DAHER) (type certificate previously held
by SOCATA) Model TBM 700 airplanes. This proposed AD was prompted by
reports of wear of the inner flap actuator drive nut. This proposed AD
would require cleaning and lubricating the internal actuator rods,
measuring the play between the drive nuts and the internal actuator
rods, and if any play is found, replacing the drive nuts. This proposed
AD would also allow replacing the drive nuts with certain other design
drive nut as terminating action for the proposed requirements. The FAA
is proposing this AD to address the unsafe condition on these products.
DATES: The FAA must receive comments on this NPRM by November 14, 2024.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
<bullet> Federal eRulemaking Portal: Go to <a href="http://regulations.gov">regulations.gov</a>. Follow
the instructions for submitting comments.
<bullet> Fax: (202) 493-2251.
<bullet> 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.
<bullet> Hand Delivery: Deliver to Mail address above between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2024-2321; 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 mandatory continuing airworthiness
information (MCAI), any comments received, and other information. The
street address for Docket Operations is listed above.
[[Page 79486]]
Material Incorporated by Reference:
<bullet> For DAHER AEROSPACE material identified in this proposed
AD, contact DAHER AEROSPACE, Customer Support, Airplane Business Unit,
Tarbes Cedex 9, France; phone: (833) 826-2273; email:
<a href="/cdn-cgi/l/email-protection#83f7e1eee0e2f1e6c3bfe2a3ebf1e6e5be" http: daher.com">daher.com</a>">tbmcare@<a href="http://daher.com">daher.com</a></a>; website: <a href="http://daher.com">daher.com</a>.
<bullet> You may view this material at the FAA, Airworthiness
Products Section, Operational Safety Branch, 901 Locust, Kansas City,
MO 64106. For information on the availability of this material at the
FAA, call (817) 222-5110.
FOR FURTHER INFORMATION CONTACT: Fred Guerin, Aviation Safety Engineer,
FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: (206)
231-2346; email: <a href="/cdn-cgi/l/email-protection#a0c6d2c5c48ec7d5c5d2c9cee0c6c1c18ec7cfd6"><span class="__cf_email__" data-cfemail="85e3f7e0e1abe2f0e0f7ecebc5e3e4e4abe2eaf3">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
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 ADDRESSES. Include ``Docket No. FAA-2024-2321; Project Identifier
MCAI-2024-00126-A'' at the beginning of your comments. The most helpful
comments reference a specific portion of the proposal, explain the
reason for any recommended change, and include supporting data. The FAA
will consider all comments received by the closing date and may amend
this proposal because of those comments.
Except for Confidential Business Information (CBI) as described in
the following paragraph, and other information as described in 14 CFR
11.35, the FAA will post all comments received, without change, to
<a href="http://regulations.gov">regulations.gov</a>, including any personal information you provide. The
agency will also post a report summarizing each substantive verbal
contact received about this NPRM.
Confidential Business Information
CBI is commercial or financial information that is both customarily
and actually treated as private by its owner. Under the Freedom of
Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public
disclosure. If your comments responsive to this NPRM contain commercial
or financial information that is customarily treated as private, that
you actually treat as private, and that is relevant or responsive to
this NPRM, it is important that you clearly designate the submitted
comments as CBI. Please mark each page of your submission containing
CBI as ``PROPIN.'' The FAA will treat such marked submissions as
confidential under the FOIA, and they will not be placed in the public
docket of this NPRM. Submissions containing CBI should be sent to Fred
Guerin, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590. Any commentary that the FAA receives which is not
specifically designated as CBI will be placed in the public docket for
this rulemaking.
Background
The European Union Aviation Safety Agency (EASA), which is the
Technical Agent for the Member States of the European Union, has issued
EASA AD 2013-0104R3, dated February 20, 2024 (also referred to as the
MCAI), to correct an unsafe condition on all DAHER AEROSPACE Model TBM
700 airplanes that do not have DAHER Modification (MOD) 70-0777-27
embodied in production. The MCAI states that wear of the inner flap
actuator drive nut was detected, which could result in improper play
between the actuator threaded rod and the drive nut with potential loss
of flap control and consequent reduced or loss of control of the
airplane. The MCAI requires cleaning and lubricating the internal
actuator rods, measuring the play between the drive nuts and the
internal actuator rods, and if any play is found, replacing the drive
nuts. The MCAI also allows replacing the drive nuts with newly designed
drive nuts as terminating action for the repetitive cleaning,
lubricating, and measuring for play.
You may examine the MCAI in the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2024-2321.
Material Incorporated by Reference Under 1 CFR Part 51
The FAA reviewed Daher Aerospace Service Bulletin SB 70-118
Revision 3, dated December 2023. This material specifies procedures for
cleaning and lubricating the internal actuator rods, measuring the play
between the drive nut and the internal actuator rods, and replacing the
drive nut. This material is reasonably available because the interested
parties have access to it through their normal course of business or by
the means identified in the ADDRESSES section.
FAA's Determination
These products have been approved by the aviation authority of
another country and are 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 and material referenced above. The FAA is issuing this NPRM
after determining that the unsafe condition described previously is
likely to exist or develop on other products of the same type design.
Proposed AD Requirements in This NPRM
This proposed AD would require accomplishing the actions specified
in the material already described.
Costs of Compliance
The FAA estimates that this AD, if adopted as proposed, would
affect 807 airplanes of U.S. registry.
The FAA estimates the following costs to comply with this proposed
AD:
Estimated Costs
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Cost on U.S.
Action Labor cost Parts cost Cost per product operators
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Clean and lubricate left-hand 1 work-hour x $85 $0 $85................ $68,595 per
(LH) and right-hand (RH) per hour = $85, cleaning and
internal actuator rods. per cleaning and lubricating cycle.
lubricating cycle.
Measure the play for the LH and 1 work-hour x $85 0 $85 per measurement $68,595 per
RH drive nuts. per hour = $85, cycle. measurement cycle.
per measurement
cycle.
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If, during any proposed measurement for play, no discrepancy is
found, operators have the option to replace the LH and RH drive nuts.
If, during any proposed measuring for play, any discrepancy is found,
the LH and RH drive nuts must be replaced. Replacing the LH and RH
drive nuts would be terminating action for the proposed repetitive
cleaning, lubricating, and measuring play. The FAA estimates the
[[Page 79487]]
following costs for replacing the LH and RH drive nuts:
On-Condition Costs
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Cost per
Action Labor cost Parts cost product
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Replace drive nuts........................... 4 work-hours x $85 per hour = $200 $540
$340.
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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 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) Would not affect intrastate aviation in Alaska, and
(3) Would 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 adding the following new airworthiness
directive:
DAHER AEROSPACE (Type Certificate Previously Held by SOCATA): Docket
No. FAA-2024-2321; Project Identifier MCAI-2024-00126-A.
(a) Comments Due Date
The FAA must receive comments on this airworthiness directive
(AD) by November 14, 2024.
(b) Affected ADs
None.
(c) Applicability
This AD applies to DAHER AEROSPACE (type certificate previously
held by SOCATA) Model TBM 700 airplanes, all serial numbers,
certificated in any category except those with DAHER Modification
(MOD) 70-0777-27 installed during production.
(d) Subject
Joint Aircraft System Component (JASC) Code 2750, TE Flap
Control System; 2752, TE Flap Actuator.
(e) Unsafe Condition
This AD was prompted by reports of wear of the inner flap
actuator drive nut. The FAA is issuing this AD to prevent wear of
the drive nut threading on the internal actuator flaps. The unsafe
condition, if not addressed, could result in improper play between
the actuator threaded rod and the drive nut, which could result in
loss of flap control, resulting in reduced or loss of control of the
airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Actions
(1) Clean and lubricate the left-hand (LH) and right-hand (RH)
inner actuator rods in accordance with Paragraph C. in the
Description of Accomplishment Instructions of Daher Aerospace
Service Bulletin SB 70-118 Revision 3, dated December 2023 (Daher SB
70-118) within the compliance times identified in paragraph
(g)(1)(i) or (ii) of this AD, whichever occurs later.
(i) Before the accumulation of 400 hours time-in-service (TIS)
or 12 months, whichever occurs first, since the first installation
of a LH and RH inner flap actuator, and thereafter at intervals not
to exceed 400 hours TIS or 12 months, whichever occurs first.
(ii) Within 10 hours TIS after the effective date of this AD and
thereafter at intervals not to exceed 400 hours TIS or 12 months,
whichever occurs first.
(2) Within the compliance time identified in paragraph (g)(2)(i)
or (ii) of this AD, whichever occurs later, and thereafter, at
intervals not to exceed 400 hours TIS or 12 months, whichever occurs
first, for each inner flap actuator, measure the play between the
drive nut and the internal actuator rod in accordance with Section
A, Paragraphs (1) through (9), in the Description of Accomplishment
Instructions of Daher SB 70-118. Where Section A, Paragraph (3), in
the Description of Accomplishment Instructions of Daher SB 70-118
specifies ``With the help of a second operator'' this AD requires
this action be performed by persons authorized under 14 CFR 43.3.
(i) 3,000 hours TIS since first installation of the inner flap
actuator on your airplane.
(ii) 400 hours TIS or 12 months, whichever occurs first since
the last play measurement accomplished for that inner flap actuator
in accordance with Section A, Paragraphs (1) through (9), in the
Description of Accomplishment Instructions of Daher SB 70-118.
(3) If, during any measurement required by paragraph (g)(2) of
this AD, any play is found, as identified in Section A, Paragraphs
(8)(b) and (9)(b), of the Description of Accomplishment
Instructions, Daher SB 70-118, before further flight, accomplish the
applicable corrective actions in accordance with Section A,
Paragraphs (10) through (15) and (17), and Section C, Paragraph (1),
in the Description of Accomplishment Instructions of Daher SB 70-
118. Where Section B, Paragraph (4), in the Description of
Accomplishment Instructions of Daher SB 70-118, specifies to discard
an old drive nut, this AD requires removing the old drive nut from
service.
(4) If, during any measurement as required by paragraph (g)(2)
of this AD, no play is found, as identified in Section A, Paragraphs
(8)(a) and (9)(a), in the Description of Accomplishment Instructions
of Daher SB 70-118, before further flight, accomplish the actions in
accordance with Section A, Paragraphs (13) through (15) and (17),
and Section C, Paragraph (1), in the Description of Accomplishment
Instructions of Daher SB 70-118.
[[Page 79488]]
(h) Terminating Action
Replacing the drive nuts in accordance with Section B,
Paragraphs (1) through (10), in the Description of Accomplishment
Instructions of Daher SB 70-118, constitutes terminating action for
all of the actions required by paragraphs (g)(1) and (2) of this AD,
provided, after that replacement, no LH flap actuator having part
number (P/N) 1-5295-B or RH flap actuator having P/N 2-5295-B is
installed. Where Section B, Paragraph (4) in the Description of
Accomplishment Instructions of Daher SB 70-118, specifies to discard
an old drive nut, this AD requires removing the old drive nut from
service.
(i) 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 local Flight
Standards District Office, as appropriate. If sending information
directly to the manager of the International Validation Branch, mail
it to the address identified in paragraph (j) of this AD or email
to: <a href="/cdn-cgi/l/email-protection#5c1d11131f1c3a3d3d723b332a"><span class="__cf_email__" data-cfemail="d7969a989497b1b6b6f9b0b8a1">[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 local Flight Standards District Office/certificate holding
district office.
(j) Additional Information
For more information about this AD, contact Fred Guerin,
Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; phone: (206) 231-2346; email:
<a href="/cdn-cgi/l/email-protection#bbddc9dedf95dccedec9d2d5fbdddada95dcd4cd"><span class="__cf_email__" data-cfemail="4d2b3f2829632a38283f24230d2b2c2c632a223b">[email protected]</span></a>.
(k) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the material listed in this
paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this material as applicable to do the actions
required by this AD, unless the AD specifies otherwise.
(i) Daher Aerospace Service Bulletin SB 70-118, Revision 3,
dated December 2023.
(ii) [Reserved]
(3) For DAHER AEROSPACE material identified in this AD, contact
DAHER AEROSPACE, Customer Support, Airplane Business Unit, Tarbes
Cedex 9, France; phone: (833) 826-2273; email: <a href="/cdn-cgi/l/email-protection#eb9f8986888a998eabd78acb83998e8dd6" http: daher.com">daher.com</a>">tbmcare@<a href="http://daher.com">daher.com</a></a>;
website: <a href="http://daher.com">daher.com</a>.
(4) You may view this material at the FAA, Airworthiness
Products Section, Operational Safety Branch, 901 Locust, Kansas
City, MO 64106. For information on the availability of this material
at the FAA, call (817) 222-5110.
(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#1573673b7c7b66657076617c7a7b557b7467743b727a63"><span class="__cf_email__" data-cfemail="0e687c2067607d7e6b6d7a6761604e606f7c6f20696178">[email protected]</span></a>.
Issued on September 24, 2024.
Victor Wicklund,
Deputy Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2024-22209 Filed 9-27-24; 8:45 am]
BILLING CODE 4910-13-P
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