Tdata AD

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PROPOSED AD	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.

(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:  AMOC@faa.gov.  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: fred.guerin@faa.gov.

(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:  daher.com">tbmcare@daher.com;
    website: daher.com.

(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 Admin-
    istration (NARA). For information on the availability of this material
    at NARA, visit www.archives.gov/federal-register/cfr/ibr-locations  or
    email fr.inspection@nara.gov.

Issued on September 24, 2024. Victor Wicklund, Deputy Director, Compliance
& Airworthiness Division, Aircraft Certification Service.

DATES: The FAA must receive comments on this NPRM by November 14, 2024.

PREAMBLE

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).

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

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:

Federal eRulemaking Portal: Go to 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.

AD Docket: You may examine the AD docket at regulations.gov 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.

Material Incorporated by Reference:

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:
tbmcare@daher.com; website: daher.com.

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: fred.guerin@faa.gov.

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
regulations.gov, 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 regulations.gov 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

ACTION	LABOR COST	PARTS COST	COST PER PRODUCT	COST ON U.S. OPERATORS
Clean and lubricate left-hand (LH) and right-hand (RH) internal actuator rods	1 work-hour x $85 per hour = $85, per cleaning and lubricating cycle	$0	$85	$68,595 per cleaning and lubricating cycle.
Measure the play for the LH and RH drive nuts	1 work-hour x $85 per hour = $85, per measurement cycle	0	$85 per measurement cycle	$68,595 per measurement cycle.

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
following costs for replacing the LH and RH drive nuts:

On-Condition Costs

ACTION	LABOR COST	PARTS COST	COST PER PRODUCT
Replace drive nuts	4 work-hours x $85 per hour = $340	$200	$540

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

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 adding the following new airworthiness
directive: