Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes, 69140-69142 [2020-24047]
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69140
Federal Register / Vol. 85, No. 212 / Monday, November 2, 2020 / Rules and Regulations
describes the unsafe condition as seizing of
an MLG spring pack assembly. The FAA is
issuing this AD to prevent failure of the MLG
spring pack assembly, which could result in
the inability to extend the MLG with
consequent loss of control of the airplane
after landing.
(f) Actions and Compliance
(1) Within 2 months after the effective date
of this AD, remove from service MLG spring
pack assembly P/N 532.34.12.101 and install
MLG spring pack assembly P/N
532.34.12.120 by following the
Accomplishment Instructions-Part AAircraft, section 3.B., in Pilatus PC–12
Service Bulletin No. 32–027, dated January 7,
2019.
(2) As of the effective date of this AD, do
not install an MLG spring pack assembly P/
N 532.34.12.101 on any airplane.
(g) 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. Send
information to Doug Rudolph, Aerospace
Engineer, FAA, General Aviation & Rotorcraft
Section, International Validation Branch, 901
Locust, Room 301, Kansas City, Missouri
64106; telephone: (816) 329–4059; fax: (816)
329–4090; email: doug.rudolph@faa.gov.
Before using any approved AMOC, notify
your appropriate principal inspector (PI), or
lacking a PI, your local Flight Standards
District Office.
jbell on DSKJLSW7X2PROD with RULES
(h) Related Information
Refer to European Union Aviation Safety
(EASA) Agency AD No. 2019–0032, dated
February 15, 2019, for more information. You
may examine the EASA AD in the AD docket
on the internet at https://
www.regulations.gov by searching for and
locating Docket No. FAA–2020–0746.
(i) 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) Pilatus PC–12 Service Bulletin No. 32–
027, dated January 7, 2019.
(ii) [Reserved]
(3) For Pilatus Aircraft Ltd. service
information identified in this AD, contact
Pilatus Aircraft Ltd., Customer Technical
Support (MCC), P.O. Box 992, CH–6371
Stans, Switzerland; telephone: +41 (0)41 619
67 74; fax: +41 (0)41 619 67 73; email:
Techsupport@pilatus-aircraft.com; internet:
https://www.pilatus-aircraft.com/en.
(4) You may view this service information
at the FAA, Airworthiness Products Section,
Operational Safety Branch, 901 Locust,
Kansas City, Missouri 64106. For information
on the availability of this material at the
FAA, call (816) 329–4148.
(5) You may view this service information
that is incorporated by reference at the
National Archives and Records
VerDate Sep<11>2014
17:00 Oct 30, 2020
Jkt 253001
Administration (NARA). For information on
the availability of this material at NARA,
email: fedreg.legal@nara.gov, or go to:
https://www.archives.gov/federal-register/cfr/
ibr-locations.html.
4148. It is also available on the internet
at https://www.regulations.gov by
searching for and locating Docket No.
FAA–2020–0745.
Issued on October 14, 2020.
Lance T. Gant,
Director, Compliance & Airworthiness
Division, Aircraft Certification Service.
Examining the AD Docket
[Docket No. FAA–2020–0745; Project
Identifier 2019–CE–030–AD; Amendment
39–21296; AD 2020–21–23]
You may examine the AD docket on
the internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2020–
0745; 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.
RIN 2120–AA64
FOR FURTHER INFORMATION CONTACT:
[FR Doc. 2020–24048 Filed 10–30–20; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
Airworthiness Directives; Pilatus
Aircraft Ltd. Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
The FAA is adopting a new
airworthiness directive (AD) for Pilatus
Aircraft Ltd. Models PC–12, PC–12/45,
PC–12/47, and PC–12/47E airplanes.
This AD was prompted by mandatory
continuing airworthiness information
(MCAI) issued by the aviation authority
of another country to identify and
correct an unsafe condition on an
aviation product. The MCAI describes
the unsafe condition as improperly
manufactured horizontal stabilizer rear
attachment bolts. If not corrected, this
could lead to fatigue failure of the bolts
and loss of airplane control. The FAA is
issuing this AD to address the unsafe
condition on these products.
DATES: This AD is effective December 7,
2020.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in this AD
as of December 7, 2020.
ADDRESSES: For service information
identified in this final rule, contact
Pilatus Aircraft Ltd., Customer
Technical Support (MCC), P.O. Box 992,
CH–6371 Stans, Switzerland; telephone:
+41 (0)41 619 67 74; fax: +41 (0)41 619
67 73; email: Techsupport@pilatusaircraft.com; internet: https://
www.pilatus-aircraft.com. You may
view this service information at the
FAA, Airworthiness Products Section,
Operational Safety Branch, 901 Locust,
Kansas City, Missouri 64106. For
information on the availability of this
material at the FAA, call (816) 329–
SUMMARY:
PO 00000
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Doug Rudolph, Aerospace Engineer,
General Aviation & Rotorcraft Section,
International Validation Branch, 901
Locust, Room 301, Kansas City,
Missouri 64106; phone: (816) 329–4059;
fax: (816) 329–4090; email:
doug.rudolph@faa.gov.
SUPPLEMENTARY INFORMATION:
Discussion
The FAA issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 by adding an AD that would
apply to Pilatus Aircraft Ltd. Models
PC–12, PC–12/45, PC–12/47, and PC–
12/47E airplanes with a certain
horizontal stabilizer rear attachment
bolt installed. The NPRM published in
the Federal Register on August 6, 2020
(85 FR 47716). The NPRM proposed to
require replacing the horizontal
stabilizer rear attachment bolts and was
prompted by MCAI originated by the
European Union Aviation Safety Agency
(EASA), which is the Technical Agent
for the Member States of the European
Community. EASA issued AD No.
2019–0129, dated June 6, 2019 (referred
to after this as ‘‘the MCAI’’), to correct
the unsafe condition on these products.
The MCAI states:
On the final assembly line, horizontal
stabilizer rear attachment bolts were detected
that had not received correct heat treatment.
Subsequent investigation determined that
certain parts, identified by FAUF, were
improperly manufactured and consequently
have reduced material properties.
This condition, if not corrected, could lead
to a fatigue failure of an affected part,
possibly resulting in loss of control of the
aeroplane.
To address this potential unsafe condition,
Pilatus issued the [service bulletin] SB to
provide inspection and replacement
instructions.
E:\FR\FM\02NOR1.SGM
02NOR1
Federal Register / Vol. 85, No. 212 / Monday, November 2, 2020 / Rules and Regulations
For the reason described above, this
[EASA] AD requires replacement of affected
parts, and prohibits (re)installation thereof.
You may obtain further information
by examining the MCAI in the AD
docket on the internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2020–
0745.
Comments
The FAA gave the public the
opportunity to participate in developing
this final rule. The FAA has considered
the comment received. An individual
commenter supported the NPRM.
Conclusion
The FAA reviewed the relevant data
and determined that air safety and the
public interest require adopting this
final rule as proposed.
Related Service Information Under 1
CFR Part 51
The FAA reviewed Pilatus Aircraft
Ltd. PC–12 Service Bulletin No. 55–004,
dated March 29, 2019. The service
information contains procedures for
checking the rear attachment bolts for
the horizontal stabilizer and replacing
any defective bolts. 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.
jbell on DSKJLSW7X2PROD with RULES
Costs of Compliance
The FAA estimates that this AD will
affect 14 products of U.S. registry. The
average labor rate is $85 per work-hour.
The FAA estimates that the required
actions will take 1.5 work-hours and
require parts costing $5,000, for a cost
of $5,127.50 per product and $71,785
for the U.S. operator fleet.
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
VerDate Sep<11>2014
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69141
unsafe condition that is likely to exist or
develop on products identified in this
rulemaking action.
(d) Subject
Air Transport Association of America
(ATA) Code 55: Stabilizers.
Regulatory Findings
(e) Reason
This AD was prompted by a report of
horizontal stabilizer rear attachment bolts
that had not received correct heat treatment
during the manufacturing process. The FAA
is issuing this AD to prevent fatigue failure
of a bolt and subsequent loss of airplane
control.
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.
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
1. The authority citation for part 39
continues to read as follows:
■
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by adding
the following new airworthiness
directive:
■
2020–21–23 Pilatus Aircraft Ltd.:
Amendment 39–21296; Docket No.
FAA–2020–0745; Project Identifier
2019–CE–030–AD.
(a) Effective Date
This airworthiness directive (AD) is
effective December 7, 2020.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Pilatus Aircraft Ltd.
Models PC–12, PC–12/45, PC–12/47, and PC–
12/47E airplanes, all serial numbers,
certificated in any category, with a horizontal
stabilizer rear attachment bolt part number
(P/N) 555.10.12.139 marked with production
order number FAUF 10169753, FAUF
10171067, or FAUF 10171267 installed.
PO 00000
Frm 00023
Fmt 4700
Sfmt 4700
(f) Actions and Compliance
(1) Within 1,350 hours time-in-service after
the effective date of this AD or within 13
months after the effective date of this AD,
whichever occurs first, replace each
horizontal stabilizer rear attachment bolt P/
N 555.10.12.139 marked with production
order number FAUF 10169753, FAUF
10171067, or FAUF 10171267 by following
the Accomplishment Instructions, section
3.B.(2) through (4) and figures 1 and 2, of
Pilatus PC–12 Service Bulletin No. 55–004,
dated March 29, 2019, except you are not
required to return parts to the manufacturer.
(2) As of the effective date of this AD, do
not install a horizontal stabilizer rear
attachment bolt P/N 555.10.12.139 marked
with production order number FAUF
10169753, FAUF 10171067, or FAUF
10171267 on any airplane.
(g) 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. Send
information to ATTN: Doug Rudolph,
Aerospace Engineer, FAA, General Aviation
& Rotorcraft Section, International Validation
Branch, 901 Locust, Room 301, Kansas City,
Missouri 64106; telephone: (816) 329–4059;
fax: (816) 329–4090; email: doug.rudolph@
faa.gov. Before using any approved AMOC,
notify your appropriate principal inspector
(PI), or lacking a PI, your local Flight
Standards District Office.
(h) Related Information
Refer to European Union Aviation Safety
Agency (EASA) AD No. 2019–0129, dated
June 6, 2019, for more information. You may
examine the EASA AD in the AD docket on
the internet at https://www.regulations.gov
by searching for and locating Docket No.
FAA–2020–0745.
(i) 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) Pilatus Aircraft Ltd. PC–12 Service
Bulletin No. 55–004, dated March 29, 2019.
(ii) [Reserved]
(3) For Pilatus Aircraft Ltd. service
information identified in this AD, contact
Pilatus Aircraft Ltd., Customer Technical
Support (MCC), P.O. Box 992, CH–6371
E:\FR\FM\02NOR1.SGM
02NOR1
69142
Federal Register / Vol. 85, No. 212 / Monday, November 2, 2020 / Rules and Regulations
Stans, Switzerland; telephone: +41 (0)41 619
67 74; fax: +41 (0)41 619 67 73; email:
Techsupport@pilatus-aircraft.com.
(4) You may view this service information
at the FAA, Airworthiness Products Section,
Operational Safety Branch, 901 Locust,
Kansas City, Missouri 64106. For information
on the availability of this material at the
FAA, call (816) 329–4148.
(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: fedreg.legal@nara.gov, or go to:
https://www.archives.gov/federal-register/cfr/
ibr-locations.html.
Issued on October 9, 2020.
Lance T. Gant,
Director, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2020–24047 Filed 10–30–20; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2020–0678; Product
Identifier 2020–NM–098–AD; Amendment
39–21292; AD 2020–21–19]
RIN 2120–AA64
Airworthiness Directives; Dassault
Aviation Airplanes
Examining the AD Docket
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
AGENCY:
The FAA is superseding
Airworthiness Directive (AD) 2019–24–
11, which applied to certain Dassault
Aviation Model FALCON 900EX
airplanes. AD 2019–24–11 required
revising the existing maintenance or
inspection program, as applicable, to
incorporate new or more restrictive
airworthiness limitations. This AD
continues to require those maintenance
or inspection program revisions, and
also requires revising the existing
maintenance or inspection program, as
applicable, to incorporate additional
new or more restrictive airworthiness
limitations; as specified in a European
Union Aviation Safety Agency (EASA)
AD, which is incorporated by reference.
This AD was prompted by a
determination that new or more
restrictive airworthiness limitations are
necessary. The FAA is issuing this AD
to address the unsafe condition on these
products.
DATES: This AD is effective December 7,
2020.
jbell on DSKJLSW7X2PROD with RULES
SUMMARY:
VerDate Sep<11>2014
17:00 Oct 30, 2020
Jkt 253001
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in this AD
as of December 7, 2020.
The Director of the Federal Register
approved the incorporation by reference
of a certain other publication listed in
this AD as of January 24, 2020 (84 FR
69997, December 20, 2019).
ADDRESSES: For the EASA material
incorporated by reference (IBR) in this
AD, contact the EASA, KonradAdenauer-Ufer 3, 50668 Cologne,
Germany; telephone +49 221 8999 000;
email ADs@easa.europa.eu; internet
www.easa.europa.eu. You may find this
IBR material on the EASA website at
https://ad.easa.europa.eu.
For the Dassault service information
identified in this AD, contact Dassault
Falcon Jet Corporation, Teterboro
Airport, P.O. Box 2000, South
Hackensack, NJ 07606; telephone 201–
440–6700; internet https://
www.dassaultfalcon.com.
You may view this IBR material at the
FAA, Airworthiness Products Section,
Operational Safety 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 in the AD docket on
the internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2020–
0678.
You may examine the AD docket on
the internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2020–
0678; 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,
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: Tom
Rodriguez, Aerospace Engineer, Large
Aircraft Section, International
Validation Branch, FAA, 2200 South
216th St., Des Moines, WA 98198;
telephone and fax: 206–231–3226;
email: tom.rodriguez@faa.gov.
SUPPLEMENTARY INFORMATION:
Discussion
The EASA, which is the Technical
Agent for the Member States of the
European Union, has issued EASA AD
2020–0116, dated May 20, 2020 (‘‘EASA
AD 2020–0116’’) (also referred to as the
PO 00000
Frm 00024
Fmt 4700
Sfmt 4700
Mandatory Continuing Airworthiness
Information, or ‘‘the MCAI’’), to correct
an unsafe condition for certain Dassault
Aviation Model FALCON 900EX
airplanes. EASA AD 2020–0116
superseded EASA AD 2019–0133
(which corresponds to FAA AD 2019–
24–11, Amendment 39–19814 (84 FR
69997, December 20, 2019) (‘‘AD 2019–
24–11’’)).
The FAA issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to supersede AD 2019–24–11.
AD 2019–24–11 applied to certain
Dassault Aviation Model FALCON
900EX airplanes. The NPRM published
in the Federal Register on August 3,
2020 (85 FR 46563). The NPRM was
prompted by a determination that new
or more restrictive airworthiness
limitations are necessary. The NPRM
proposed to continue to require the
maintenance or inspection program
revisions required by AD 2019–24–11,
and also proposed to require revising
the existing maintenance or inspection
program, as applicable, to incorporate
additional new or more restrictive
airworthiness limitations, as specified
in an EASA AD.
The FAA is issuing this AD to address
reduced structural integrity of the
airplane. 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 IBR Material Under 1 CFR Part
51
EASA AD 2020–0116 describes new
or more restrictive maintenance tasks
and airworthiness limitations.
This AD also requires Chapter 5–40,
Airworthiness Limitations, Revision 16,
dated September 2018, of the Dassault
FALCON 900EX Maintenance Manual,
which the Director of the Federal
Register approved for incorporation by
reference as of January 24, 2020 (84 FR
69997, December 20, 2019).
E:\FR\FM\02NOR1.SGM
02NOR1
]]>Agencies
[Federal Register Volume 85, Number 212 (Monday, November 2, 2020)]
[Rules and Regulations]
[Pages 69140-69142]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2020-24047]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2020-0745; Project Identifier 2019-CE-030-AD; Amendment
39-21296; AD 2020-21-23]
RIN 2120-AA64
Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: The FAA is adopting a new airworthiness directive (AD) for
Pilatus Aircraft Ltd. Models PC-12, PC-12/45, PC-12/47, and PC-12/47E
airplanes. This AD was prompted by mandatory continuing airworthiness
information (MCAI) issued by the aviation authority of another country
to identify and correct an unsafe condition on an aviation product. The
MCAI describes the unsafe condition as improperly manufactured
horizontal stabilizer rear attachment bolts. If not corrected, this
could lead to fatigue failure of the bolts and loss of airplane
control. The FAA is issuing this AD to address the unsafe condition on
these products.
DATES: This AD is effective December 7, 2020.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of December 7,
2020.
ADDRESSES: For service information identified in this final rule,
contact Pilatus Aircraft Ltd., Customer Technical Support (MCC), P.O.
Box 992, CH-6371 Stans, Switzerland; telephone: +41 (0)41 619 67 74;
fax: +41 (0)41 619 67 73; email: aircraft.com">[email protected]aircraft.com;
internet: https://www.pilatus-aircraft.com. You may view this service
information at the FAA, Airworthiness Products Section, Operational
Safety Branch, 901 Locust, Kansas City, Missouri 64106. For information
on the availability of this material at the FAA, call (816) 329-4148.
It is also available on the internet at https://www.regulations.gov by
searching for and locating Docket No. FAA-2020-0745.
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-2020-
0745; 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: Doug Rudolph, Aerospace Engineer,
General Aviation & Rotorcraft Section, International Validation Branch,
901 Locust, Room 301, Kansas City, Missouri 64106; phone: (816) 329-
4059; fax: (816) 329-4090; email: [email protected].
SUPPLEMENTARY INFORMATION:
Discussion
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 by adding an AD that would apply to Pilatus Aircraft Ltd.
Models PC-12, PC-12/45, PC-12/47, and PC-12/47E airplanes with a
certain horizontal stabilizer rear attachment bolt installed. The NPRM
published in the Federal Register on August 6, 2020 (85 FR 47716). The
NPRM proposed to require replacing the horizontal stabilizer rear
attachment bolts and was prompted by MCAI originated by the European
Union Aviation Safety Agency (EASA), which is the Technical Agent for
the Member States of the European Community. EASA issued AD No. 2019-
0129, dated June 6, 2019 (referred to after this as ``the MCAI''), to
correct the unsafe condition on these products. The MCAI states:
On the final assembly line, horizontal stabilizer rear
attachment bolts were detected that had not received correct heat
treatment. Subsequent investigation determined that certain parts,
identified by FAUF, were improperly manufactured and consequently
have reduced material properties.
This condition, if not corrected, could lead to a fatigue
failure of an affected part, possibly resulting in loss of control
of the aeroplane.
To address this potential unsafe condition, Pilatus issued the
[service bulletin] SB to provide inspection and replacement
instructions.
[[Page 69141]]
For the reason described above, this [EASA] AD requires
replacement of affected parts, and prohibits (re)installation
thereof.
You may obtain further information by examining the MCAI in the AD
docket on the internet at https://www.regulations.gov by searching for
and locating Docket No. FAA-2020-0745.
Comments
The FAA gave the public the opportunity to participate in
developing this final rule. The FAA has considered the comment
received. An individual commenter supported the NPRM.
Conclusion
The FAA reviewed the relevant data and determined that air safety
and the public interest require adopting this final rule as proposed.
Related Service Information Under 1 CFR Part 51
The FAA reviewed Pilatus Aircraft Ltd. PC-12 Service Bulletin No.
55-004, dated March 29, 2019. The service information contains
procedures for checking the rear attachment bolts for the horizontal
stabilizer and replacing any defective bolts. 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 will affect 14 products of U.S.
registry. The average labor rate is $85 per work-hour.
The FAA estimates that the required actions will take 1.5 work-
hours and require parts costing $5,000, for a cost of $5,127.50 per
product and $71,785 for the U.S. operator fleet.
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.
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:
2020-21-23 Pilatus Aircraft Ltd.: Amendment 39-21296; Docket No.
FAA-2020-0745; Project Identifier 2019-CE-030-AD.
(a) Effective Date
This airworthiness directive (AD) is effective December 7, 2020.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Pilatus Aircraft Ltd. Models PC-12, PC-12/45,
PC-12/47, and PC-12/47E airplanes, all serial numbers, certificated
in any category, with a horizontal stabilizer rear attachment bolt
part number (P/N) 555.10.12.139 marked with production order number
FAUF 10169753, FAUF 10171067, or FAUF 10171267 installed.
(d) Subject
Air Transport Association of America (ATA) Code 55: Stabilizers.
(e) Reason
This AD was prompted by a report of horizontal stabilizer rear
attachment bolts that had not received correct heat treatment during
the manufacturing process. The FAA is issuing this AD to prevent
fatigue failure of a bolt and subsequent loss of airplane control.
(f) Actions and Compliance
(1) Within 1,350 hours time-in-service after the effective date
of this AD or within 13 months after the effective date of this AD,
whichever occurs first, replace each horizontal stabilizer rear
attachment bolt P/N 555.10.12.139 marked with production order
number FAUF 10169753, FAUF 10171067, or FAUF 10171267 by following
the Accomplishment Instructions, section 3.B.(2) through (4) and
figures 1 and 2, of Pilatus PC-12 Service Bulletin No. 55-004, dated
March 29, 2019, except you are not required to return parts to the
manufacturer.
(2) As of the effective date of this AD, do not install a
horizontal stabilizer rear attachment bolt P/N 555.10.12.139 marked
with production order number FAUF 10169753, FAUF 10171067, or FAUF
10171267 on any airplane.
(g) 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. Send information to ATTN: Doug
Rudolph, Aerospace Engineer, FAA, General Aviation & Rotorcraft
Section, International Validation Branch, 901 Locust, Room 301,
Kansas City, Missouri 64106; telephone: (816) 329-4059; fax: (816)
329-4090; email: [email protected]. Before using any approved
AMOC, notify your appropriate principal inspector (PI), or lacking a
PI, your local Flight Standards District Office.
(h) Related Information
Refer to European Union Aviation Safety Agency (EASA) AD No.
2019-0129, dated June 6, 2019, for more information. You may examine
the EASA AD in the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-
2020-0745.
(i) 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) Pilatus Aircraft Ltd. PC-12 Service Bulletin No. 55-004,
dated March 29, 2019.
(ii) [Reserved]
(3) For Pilatus Aircraft Ltd. service information identified in
this AD, contact Pilatus Aircraft Ltd., Customer Technical Support
(MCC), P.O. Box 992, CH-6371
[[Page 69142]]
Stans, Switzerland; telephone: +41 (0)41 619 67 74; fax: +41 (0)41
619 67 73; email: aircraft.com">[email protected]aircraft.com.
(4) You may view this service information at the FAA,
Airworthiness Products Section, Operational Safety Branch, 901
Locust, Kansas City, Missouri 64106. For information on the
availability of this material at the FAA, call (816) 329-4148.
(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 on October 9, 2020.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification
Service.
[FR Doc. 2020-24047 Filed 10-30-20; 8:45 am]
BILLING CODE 4910-13-P
