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2021-25-10 DAHER AEROSPACE (TYPE CERTIFICATE PREVIOUSLY HELD BY SOCATA):
Amendment 39-21854; Docket No. FAA-2020-1069; Project Identifier 2018-CE-039-AD.

(a) EFFECTIVE DATE

    This airworthiness directive (AD) is effective January 24, 2022.

(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, with  an oil  cooler air  induction duct part number
    (P/N)    T700A7920040001,    T700H792000900000,     T700H792001900000,
    T700H792001900200, T700H792001900400, or T700H792001900600 installed.

Note 1 to paragraph (c)  of this AD:  The applicable oil cooler air induc-
tion duct P/Ns may be installed  in accordance  with modification 70-0435-
79;  Daher Aerospace Service Bulletin SB 70-231,  Revision 1,  dated  July
2018 or Daher Aerospace Service Bulletin SB 70-219, Revision 2, dated July
18, 2018.

(d) SUBJECT

    Joint Aircraft System Component (JASC) Code 7900,  Engine  Oil  System
    (Airframe).

(e) UNSAFE CONDITION

    This AD was prompted by mandatory continuing airworthiness information
    (MCAI) originated by an aviation authority of another country to ident
    -ify  and correct  an unsafe  condition on  an aviation  product.  The
    unsafe condition that is the  subject of the MCAI is  ice accumulation
    on the oil cooler  air inlet duct fin.  The FAA is issuing  this AD to
    prevent ice  from accumulating  on the  oil cooler  air induction duct
    fins, which could lead to an increase in oil temperature,  uncommanded
    engine inflight shutdown, and reduced airplane control.

(f) COMPLIANCE

    Comply with this AD within the compliance times specified,  unless al-
    ready done.

(g) MODIFY THE OIL COOLER AIR INDUCTION DUCT

(1) Within 3 months after the effective date of this AD,  remove  the four
    upper fins of the oil cooler air induction duct  and re - identify the
    oil cooler air induction duct  in  accordance  with the Description of
    Accomplishment Instructions in Daher Aerospace Service Bulletin SB 70-
    254, dated April 2018.

(2) As of the effective date of this AD,  do not install an oil cooler air
    induction     duct     P/N     T700A7920040001,     T700H792000900000,
    T700H792001900000,     T700H792001900200,     T700H792001900400,    or
    T700H792001900600 on any airplane.

(h) ALTERNATIVE METHODS OF COMPLIANCE (AMOCS)

(1) 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
    certification  office,  send  it  to  the  attention  of  the   person
    identified in paragraph (i)(1) of this AD and email to: 9-AVS-AIR-730-
    AMOC@faa.gov.

(2) Before using any approved AMOC,  notify your appropriate principal in-
    spector,  or  lacking a principal inspector,  the manager of the local
    flight standards district office/certificate holding district office.

(i) RELATED INFORMATION

(1) For more information  about this AD,  contact  Greg Johnson,  Aviation
    Safety Engineer, FAA,  General Aviation & Rotorcraft Section, Interna-
    tional Validation Branch, 901 Locust, Room 301, Kansas City, MO 64106;
    phone: (720) 626-5462;  fax: (816) 329-4090;  email: greg.johnson@faa.
    gov.

(2) Refer to European Aviation Safety Agency  (EASA)  AD 2018-0133,  dated
    June 22, 2018, and corrected June 25, 2018,  for more information. You
    may examine the EASA AD  in the AD docket  at https://www.regulations.
    gov by searching for and locating it in Docket No. FAA-2020-1069.

(j) 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 the AD specifies otherwise.

(i) Daher Aerospace Service Bulletin SB 70-254, dated April 2018.

(ii) [Reserved]

(3) For Daher Aerospace service information identified in this AD, contact
    Daher Aerospace Inc., Pompano Beach Airpark, 601 NE 10 Street, Pompano
    Beach, FL 33060; phone: (954) 893-1400; website: https://www.tbm.aero.

(4) You may view this referenced service information at the FAA, Airworthi
    -ness 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 service information  that is incorporated  by refer-
    ence at the National Archives and Records Administration  (NARA).  For
    information on the availability of this material  at NARA,  email: fr.
    inspection@nara.gov,   or   go  to:  https://www.archives.gov/federal-
    register/cfr/ibr-locations.html.

Issued on December 3, 2021. Lance T Gant, Director, Compliance & Airworth-
iness Division, Aircraft Certification Service.

FOR FURTHER INFORMATION CONTACT:  Greg Johnson,  Aviation Safety Engineer,
FAA,  General  Aviation  &  Rotorcraft  Section,  International Validation
Branch, 901 Locust, Room 301, Kansas City, MO 64106; phone: (720) 626-5462
fax: (816) 329-4090; email: greg.johnson@faa.gov.
PREAMBLE 

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2020-1069; Project Identifier 2018-CE-039-AD; Amendment
39-21854; AD 2021-25-10]
RIN 2120-AA64

Airworthiness Directives; Daher Aerospace (Type Certificate
Previously Held by SOCATA) Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for
certain Daher Aerospace (type certificate previously held by SOCATA)
(Daher) Model TBM 700 airplanes. This AD results from mandatory
continuing airworthiness information (MCAI) originated by an aviation
authority of another country to identify and correct an unsafe
condition on an aviation product. The unsafe condition that is the
subject of the MCAI is ice accumulation on the oil cooler air inlet
duct fin. This AD requires modifying the oil cooler air induction duct.
The FAA is issuing this AD to address the unsafe condition on these
products.

DATES: This AD is effective January 24, 2022.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of January 24,
2022.

ADDRESSES: For service information identified in this final rule,
contact Daher Aerospace Inc., Pompano Beach Airpark, 601 NE 10 Street,
Pompano Beach, FL 33060; phone: (954) 893-1400; website: https://www.tbm.aero.
You may view this service information 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. It is also available at
https://www.regulations.gov by searching for and locating Docket No.
FAA-2020-1069.

Examining the AD Docket

You may examine the AD docket at https://www.regulations.gov by
searching for and locating Docket No. FAA-2020-1069; 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
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.

FOR FURTHER INFORMATION CONTACT: Greg Johnson, Aviation Safety
Engineer, FAA, General Aviation & Rotorcraft Section, International
Validation Branch, 901 Locust, Room 301, Kansas City, MO 64106; phone:
(720) 626-5462; fax: (816) 329-4090; email: greg.johnson@faa.gov.

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 Daher Model TBM 700
airplanes with certain oil cooler air induction ducts installed. The
NPRM published in the Federal Register on August 18, 2021 (86 FR
46160). The NPRM was based on MCAI from the European Aviation Safety
Agency (EASA), which is the Technical Agent for the Member States of
the European Union. EASA issued AD 2018-0133, dated June 22, 2018, and
corrected June 25, 2018 (referred to after this as ``the MCAI''), to
address the unsafe condition on certain Daher Model TBM 700 airplanes.
The MCAI states:

During flight testing in icing conditions, oil temperature
increase was observed. Subsequent investigation determined that the
loss of efficiency of the oil cooler system was due to ice
accumulation on the engine air induction duct fins.
This condition, if not corrected, could lead to uncommanded
engine in-flight shut-down and reduced control of the aeroplane.
To address this potential unsafe condition, DAHER AEROSPACE
developed MOD 70-0616-79 for aeroplanes in production, removing the
4 upper fins of the oil cooler air induction duct to avoid ice
accumulation, available for in-service aeroplanes through the SB
[Daher Aerospace Service Bulletin 70-254, dated April 18, 2018].
For the reasons described above, this [EASA] AD requires
modification of the oil cooler air induction duct.

You may examine the MCAI in the AD docket at https://www.regulations.gov
by searching for and locating Docket No. FAA-2020-1069.
Although the unsafe condition statement in the MCAI identifies the
cause as ice accumulation on the engine air induction fin, the FAA has
determined that this does not accurately identify the affected air
path. The affected area is the oil cooler air inlet duct fin.
In the NPRM, the FAA proposed to require modifying the oil cooler
air induction duct. The FAA is issuing this AD to prevent ice from
accumulating on the oil cooler air induction duct fins, which could
lead to an increase in oil temperature, uncommanded engine inflight
shutdown, and reduced airplane control.

Discussion of Final Airworthiness Directive


Comments

The FAA received no comments on the NPRM or on the determination of
the costs.

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 and determined
that air safety requires adopting this AD as proposed. Accordingly, the
FAA is issuing this AD to address the unsafe condition on these
products. This AD is adopted as proposed in the NPRM.

Related Service Information Under 1 CFR Part 51

The FAA reviewed Daher Aerospace Service Bulletin SB 70-254, dated
April 2018. The service information specifies procedures for removing
the four upper fins of the oil cooler air induction duct and for re-
identifying the oil cooler air induction duct with a new part number.
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.

Other Related Service Information


The FAA also reviewed Daher Aerospace Service Bulletin SB 70-231,
Revision 1, dated July 2018; and Daher Aerospace Service Bulletin SB
70-219, Revision 2, dated July 2018. The service information identifies
the kit number and installation procedures for replacing the oil cooler
air induction duct.

Costs of Compliance


The FAA estimates that this AD will affect up to 807 airplanes of
U.S. registry. The FAA also estimates that it would take about 3 work-
hours per airplane to comply with the requirements of this AD. The
average labor rate is $85 per work-hour. Required parts will cost about
$50 per airplane.
Based on these figures, the FAA estimates the total cost of this AD
on U.S. operators to be $246,135 or $305 per airplane.

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 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


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: