[Federal Register Volume 84, Number 215 (Wednesday, November 6, 2019)]
[Rules and Regulations]
[Pages 59718-59720]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2019-24161]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2019-0520; Product Identifier 2019-NM-046-AD; Amendment 
39-19770; AD 2019-21-04]
RIN 2120-AA64


Airworthiness Directives; Saab AB, Saab Aeronautics (Formerly 
Known as Saab AB, Saab Aerosystems) Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Final rule.

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

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for 
certain Saab AB, Saab Aeronautics Model SAAB 2000 airplanes. This AD 
was prompted by reports of loose and irregular fasteners at the forward 
end of the nacelle upper longeron, where the bulkhead frame and struts 
are attached to the engine mounting structure (EMS). This AD requires 
modification of the EMS and structural attachments. The FAA is issuing 
this AD to address the unsafe condition on these products.

DATES: This AD is effective December 11, 2019.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of December 11, 
2019.

ADDRESSES: For service information identified in this final rule, 
contact Saab AB, Saab Aeronautics, SE-581 88, Link[ouml]ping, Sweden; 
phone: +46 13 18 5591; fax: +46 13 18 4874; email: 
[email protected]; internet: https://www.saabgroup.com. 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. It is also available on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2019-
0520.

Examining the AD Docket

    You may examine the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2019-
0520; 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 regulatory evaluation, 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: Shahram Daneshmandi, Aerospace 
Engineer, International Section, Transport Standards Branch, FAA, 2200 
South 216th St., Des Moines, WA 98198; phone and fax: 206-231-3220.

SUPPLEMENTARY INFORMATION:

Discussion

    The European Union Aviation Safety Agency (EASA), which is the 
Technical Agent for the Member States of the European Union, has issued 
EASA AD 2019-0054, dated March 18, 2019 (``EASA AD 2019-0054'') (also 
referred to as the Mandatory Continuing Airworthiness Information, or 
``the MCAI''), to correct an unsafe condition for certain Saab AB, Saab 
Aeronautics Model SAAB 2000 airplanes.
    The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 
CFR part 39 by adding an AD that would apply to certain Saab AB, Saab

[[Page 59719]]

Aeronautics Model SAAB 2000 airplanes. The NPRM published in the 
Federal Register on July 2, 2019 (84 FR 31524). The NPRM was prompted 
by reports of loose and irregular fasteners at the forward end of the 
nacelle upper longeron, where the bulkhead frame and struts are 
attached to the EMS. The NPRM proposed to require modification of the 
EMS and structural attachments.
    The FAA is issuing this AD to address loose and irregular fasteners 
of the EMS which could cause development of cracks in the EMS, leading 
to failure of the affected engine mount-to-airplane structural 
connection, possibly resulting in significant airframe vibrations and 
detrimental effects on the surrounding pylon/nacelle structure, and 
loss of structural integrity. See the MCAI for additional background 
information.

Comments

    The FAA gave the public the opportunity to participate in 
developing this final rule. The FAA received no comments on the NPRM or 
on the determination of the cost to the public.

Conclusion

    The FAA reviewed the relevant data and determined that air safety 
and the public interest require adopting this final rule as proposed, 
except for minor editorial changes. The FAA has determined that these 
minor changes:
     Are consistent with the intent that was proposed in the 
NPRM for addressing the unsafe condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM.

Related Service Information Under 1 CFR Part 51

    Saab has issued Service Bulletin 2000-54-036, Revision 02, dated 
January 18, 2019. This service information describes procedures for 
modification of the EMS and structural attachments.
    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 11 airplanes of U.S. 
registry. The FAA estimates the following costs to comply with this AD:

                                      Estimated Costs for Required Actions
----------------------------------------------------------------------------------------------------------------
                                                                                    Cost per       Cost on U.S.
                          Labor cost                              Parts cost        product         operators
----------------------------------------------------------------------------------------------------------------
256 work-hours x $85 per hour = $21,760......................          $2,500          $24,260         $266,860
----------------------------------------------------------------------------------------------------------------

    The FAA has received no definitive data that would enable the 
agency to provide cost estimates for the on-condition repairs specified 
in this AD.

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 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

    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.

Adoption of 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 (AD):

2019-21-04 Saab AB, Saab Aeronautics (Formerly Known as Saab AB, 
Saab Aerosystems): Amendment 39-19770; Docket No. FAA-2019-0520; 
Product Identifier 2019-NM-046-AD.

(a) Effective Date

    This AD is effective December 11, 2019.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Saab AB, Saab Aeronautics (formerly known as 
Saab AB, Saab Aerosystems) Model SAAB 2000 airplanes, certificated 
in any category, all serial numbers, except serial numbers 006, 043, 
056, and 061.

(d) Subject

    Air Transport Association (ATA) of America Code 54, Nacelles/
pylons.

(e) Reason

    This AD was prompted by reports of loose and irregular fasteners 
at the forward end of the nacelle upper longeron, where the bulkhead 
frame and struts are attached to the engine mounting structure 
(EMS). The FAA is issuing this AD to address loose and

[[Page 59720]]

irregular fasteners of the EMS which could cause development of 
cracks in the EMS, leading to failure of the affected engine mount-
to-airplane structural connection, possibly resulting in significant 
airframe vibrations and detrimental effects on the surrounding 
pylon/nacelle structure, and loss of structural integrity.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Modification of the EMS and Structural Attachments

    Within 3,000 flight hours or 24 months, whichever occurs first 
after the effective date of this AD, modify the EMS and structural 
attachments, in accordance with the Accomplishment Instructions of 
Saab Service Bulletin 2000-54-036, Revision 02, dated January 18, 
2019. Where Saab Service Bulletin 2000-54-036, Revision 02, dated 
January 18, 2019, specifies to contact Saab for appropriate action: 
Before further flight, accomplish corrective actions in accordance 
with the procedures specified in paragraph (i)(2) of this AD.

(h) Credit for Previous Actions

    This paragraph provides credit for actions required by paragraph 
(g) of this AD, if those actions were performed before the effective 
date of this AD using Saab Service Bulletin 2000-54-036, dated 
November 6, 2018; or Saab Service Bulletin 2000-54-036, Revision 01, 
dated January 7, 2019.

(i) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
International Section, Transport Standards 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 International Section, send it to the attention of 
the person identified in paragraph (j)(2) of this AD. Information 
may be emailed to: [email protected]. 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.
    (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, International 
Section, Transport Standards Branch, FAA; or the European Union 
Aviation Safety Agency (EASA); or Saab AB, Saab Aeronautics' EASA 
Design Organization Approval (DOA). If approved by the DOA, the 
approval must include the DOA-authorized signature.

(j) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) EASA AD 2019-0054, dated March 18, 2019, for related 
information. This MCAI may be found in the AD docket on the internet 
at https://www.regulations.gov by searching for and locating Docket 
No. FAA-2019-0520.
    (2) For more information about this AD, contact Shahram 
Daneshmandi, Aerospace Engineer, International Section, Transport 
Standards Branch, FAA, 2200 South 216th St., Des Moines, WA 98198; 
phone and fax: 206-231-3220.
    (3) Service information identified in this AD that is not 
incorporated by reference is available at the addresses specified in 
paragraphs (k)(3) and (4) of this AD.

(k) 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) Saab Service Bulletin 2000-54-036, Revision 02, dated 
January 18, 2019.
    (ii) [Reserved]
    (3) For service information identified in this AD, contact Saab 
AB, Saab Aeronautics, SE-581 88, Link[ouml]ping, Sweden; phone: +46 
13 18 5591; fax: +46 13 18 4874; email: 
[email protected]; internet: https://www.saabgroup.com.
    (4) 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.
    (5) You may view this service information that is incorporated 
by reference at the National Archives and Records Administration 
(NARA). For information on the availability of this material at 
NARA, email [email protected], or go to: https://www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued in Des Moines, Washington, on October 18, 2019.
Dionne Palermo,
Acting Director, System Oversight Division, Aircraft Certification 
Service.
[FR Doc. 2019-24161 Filed 11-5-19; 8:45 am]
BILLING CODE 4910-13-P