Airworthiness Directives; Stemme AG Gliders, 24239-24241 [2017-10402]
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24239
Federal Register / Vol. 82, No. 101 / Friday, May 26, 2017 / Rules and Regulations
FIGURE 1 TO PARAGRAPH (g)—SPEY 506–14A HIGH-PRESSURE COMPRESSOR (HPC) STAGE 12 ROTOR DISK MAXIMUM
APPROVED LIFE
Flight cycles
HPC stage 12 rotor disk, P/N EU25917, EU56963, and JR10242 ...............................................................................................
14,700
FIGURE 2 TO PARAGRAPH (g)—SPEY 555–15, SPEY 555–15H, SPEY 555–15N, OR SPEY 555–15P HPC STAGE 12
ROTOR DISK, P/N EU25917, EU56963, JR10242, AND JR18449, MAXIMUM APPROVED LIFE
Maximum
approved lives
(flight cycles)
Take-off monitoring procedure
(A) With no high-pressure (HP) revolutions per minute (RPM) monitoring ..................................................................................
HP RPM monitoring; stated RPM not exceeded on more than 15% of occasions:
(B) 100% N2 ...........................................................................................................................................................................
(C) 99% N2 .............................................................................................................................................................................
(D) 98% N2 .............................................................................................................................................................................
(E) 97% N2 .............................................................................................................................................................................
(F) No HP RPM monitoring required Datum (Average N2 at 99.5%) ...........................................................................................
11,500
13,600
17,100
19,300
20,500
16,800
FIGURE 3 TO PARAGRAPH (g)—SPEY 555–15, SPEY 555–15H, SPEY 555–15N, OR SPEY 555–15P HPC STAGE 12
ROTOR DISK, P/N EU25917, EU56963, JR10242, AND JR18449, IN-SERVICE REPLACEMENT LIMITS
In-service
replacement limits
(flight cycles)
Take-off monitoring procedure
(A) With no HP RPM monitoring ...................................................................................................................................................
HP RPM monitoring; stated RPM not exceeded on more than 15% of occasions:
(B) 100% N2 ...........................................................................................................................................................................
(C) 99% N2 .............................................................................................................................................................................
(D) 98% N2 .............................................................................................................................................................................
(E) 97% N2 .............................................................................................................................................................................
(F) No HP RPM monitoring required Datum (Average N2 at 99.5%) ...........................................................................................
(h) Installation Prohibition
After the effective date of this AD,
installation of a serviceable spare engine or
release to service of an engine after any shop
visit is allowed, provided the affected part
has not exceeded the Maximum Approved
Lives in Figures 1 or 2 to paragraph (g) of this
AD.
(i) Definition
For the purpose of this AD, a shop visit is
the induction of an engine into the shop for
maintenance or overhaul. The separation of
engine flanges solely for the purpose of
transporting the engine without subsequent
engine maintenance does not constitute an
engine shop visit.
(j) Alternative Methods of Compliance
(AMOCs)
mstockstill on DSK30JT082PROD with RULES
The Manager, Engine Certification Office,
FAA, may approve AMOCs for this AD. Use
the procedures found in 14 CFR 39.19 to
make your request. You may email your
request to: ANE-AD-AMOC@faa.gov.
(k) Related Information
(1) For more information about this AD,
contact Robert Green, Aerospace Engineer,
Engine Certification Office, FAA, Engine &
Propeller Directorate, 1200 District Avenue,
Burlington, MA 01803; phone: 781–238–
7754; fax: 781–238–7199; email:
robert.green@faa.gov.
VerDate Sep<11>2014
17:49 May 25, 2017
Jkt 241001
(2) Refer to MCAI European Aviation
Safety Agency (EASA), AD 2017–0014, dated
January 30, 2017, for more information. You
may examine the MCAI in the AD docket on
the Internet at https://www.regulations.gov by
searching for and locating it in Docket No.
FAA–2017–0186.
(3) RRD Alert Non-Modification Service
Bulletin Sp72–A1071, Revision 1, dated
January 27, 2017, which is not incorporated
by reference in this AD, can be obtained from
RRD, using the contact information in
paragraph (k)(4) of this AD.
(4) For RRD service information identified
in this AD, contact Rolls-Royce Deutschland
Ltd & Co KG, Eschenweg 11–15827
Dahlewitz, Blankenfelde-Mahlow, Germany;
phone: +49 0 33–7086–1944; fax: +49 0 33–
7086–3276.
(5) You may view this service information
at FAA, Engine & Propeller Directorate, 1200
District Avenue, Burlington, MA 01803. For
information on the availability of this
material at the FAA, call 781–238–7125.
Issued in Burlington, Massachusetts, on
May 9, 2017.
Robert J. Ganley,
Acting Manager, Engine & Propeller
Directorate, Aircraft Certification Service.
[FR Doc. 2017–10437 Filed 5–25–17; 8:45 am]
BILLING CODE 4910–13–P
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15,600
17,600
19,700
22,100
17,300
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2017–0451; Directorate
Identifier 2017–CE–015–AD; Amendment
39–18885; AD 2017–10–11]
RIN 2120–AA64
Airworthiness Directives; Stemme AG
Gliders
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule; request for
comments.
AGENCY:
We are adopting a new
airworthiness directive (AD) for Stemme
AG Model S10–VT gliders (type
certificate previously held by Stemme
GmbH & Co. KG). This AD results from
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 certain
propeller front transmission gear wheels
having insufficient material strength
because of improper heat treatment
SUMMARY:
E:\FR\FM\26MYR1.SGM
26MYR1
24240
Federal Register / Vol. 82, No. 101 / Friday, May 26, 2017 / Rules and Regulations
during manufacturing. We are issuing
this AD to require actions to address the
unsafe condition on these products.
DATES: This AD is effective June 15,
2017.
We must receive comments on this
AD by July 10, 2017.
ADDRESSES: You may send comments by
any of the following methods:
• Federal eRulemaking Portal: Go to
https://www.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: U.S. Department of
Transportation, Docket Operations, M–
30, West Building Ground Floor, Room
W12–140, 1200 New Jersey Avenue SE.,
Washington, DC 20590, between 9 a.m.
and 5 p.m., Monday through Friday,
except Federal holidays.
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–2017–
0451; or in person at the Docket
Management Facility between 9 a.m.
and 5 p.m., Monday through Friday,
except Federal holidays. The AD docket
contains this AD, the regulatory
evaluation, any comments received, and
other information. The street address for
the Docket Office (telephone (800) 647–
5527) is in the ADDRESSES section.
Comments will be available in the AD
docket shortly after receipt.
FOR FURTHER INFORMATION CONTACT: Jim
Rutherford, Aerospace Engineer, FAA,
Small Airplane Directorate, 901 Locust,
Room 301, Kansas City, Missouri 64106;
telephone: (816) 329–4165; fax: (816)
329–4090; email: jim.rutherford@
faa.gov.
SUPPLEMENTARY INFORMATION:
engine and the propeller and, eventually,
reduced control of the sailplane.
Prompted by these determinations,
Stemme issued Service Bulletin (SB) P062–
980010, providing instructions not to operate
sailplanes equipped with affected parts.
For the reasons described above, this
[EASA] AD requires replacement of affected
gearboxes.
You may examine the MCAI on the
Internet at https://www.regulations.gov
by searching for and locating Docket No.
FAA–2017–0451.
FAA’s Determination and Requirements
of the AD
This product has been approved by
the aviation authority of another
country, and is approved for operation
in the United States. Pursuant to our
bilateral agreement with this State of
Design Authority, they have notified us
of the unsafe condition described in the
MCAI and service information
referenced above. We are issuing this
AD because we evaluated all
information provided by the State of
Design Authority and determined the
unsafe condition exists and is likely to
exist or develop on other products of the
same type design.
FAA’s Determination of the Effective
Date
An unsafe condition exists that
requires the immediate adoption of this
AD. The FAA has found that the risk to
the flying public justifies waiving notice
and comment prior to adoption of this
rule because improper heat treatment of
the propeller front transmission gear
wheels could cause the gear wheel to
fail. This failure could cause loss of
power between the engine and the
propeller, which could result in reduced
control. Therefore, we determined that
notice and opportunity for public
comment before issuing this AD are
impracticable and that good cause exists
for making this amendment effective in
fewer than 30 days.
Comments Invited
The European Aviation Safety Agency
(EASA), which is the Technical Agent
for the Member States of the European
Community, has issued AD No. 2017–
0072–E, dated April 26, 2017 (referred
to after this as ‘‘the MCAI’’), to correct
an unsafe condition for the specified
products. The MCAI states:
mstockstill on DSK30JT082PROD with RULES
Discussion
This AD is a final rule that involves
requirements affecting flight safety, and
we did not precede it by notice and
opportunity for public comment. We
invite you to send any written relevant
data, views, or arguments about this AD.
Send your comments to an address
listed under the ADDRESSES section.
Include ‘‘Docket No. FAA–2017–0451;
Directorate Identifier 2017–CE–015–
AD’’ at the beginning of your comments.
We specifically invite comments on the
overall regulatory, economic,
environmental, and energy aspects of
this AD. We will consider all comments
received by the closing date and may
It has been determined that, following
improper heat treatment during manufacture,
the material strength of an identified batch of
propeller front transmission gear wheels is
insufficient.
This condition, if not corrected, can lead
to failure of a gear wheel, with possible loss
of the power transmission between the
VerDate Sep<11>2014
17:49 May 25, 2017
Jkt 241001
PO 00000
Frm 00030
Fmt 4700
Sfmt 4700
amend this AD because of those
comments.
We will post all comments we
receive, without change, to https://
www.regulations.gov, including any
personal information you provide. We
will also post a report summarizing each
substantive verbal contact we receive
about this AD.
Costs of Compliance
There are approximately 50 Stemme
AG Model S10–VT gliders of U.S.
registry but only 14 serial numbers of
the part number (P/N) 11AG front
gearbox. Therefore, the most gliders of
U.S. registry affected would be 14.
According to Stemme AG, there are only
2 of the affected gearboxes installed on
gliders of U.S. registery.
At the issue date of this AD, no design
solution is available to restore the
airworthiness of the respective type
design to a level corresponding to its
approved type design specifications.
Therefore, the FAA cannot determine
the cost of returning the affected gliders
to service.
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.
We are 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
We determined that 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,
E:\FR\FM\26MYR1.SGM
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Federal Register / Vol. 82, No. 101 / Friday, May 26, 2017 / Rules and Regulations
(2) Is not a ‘‘significant rule’’ under
the DOT Regulatory Policies and
Procedures (44 FR 11034, February 26,
1979),
(3) Will not affect intrastate aviation
in Alaska, and
(4) 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 AD:
■
2017–10–11 Stemme AG: Amendment 39–
18885; Docket No. FAA–2017–0451;
Directorate Identifier 2017–CE–015–AD.
(a) Effective Date
This airworthiness directive (AD) becomes
effective June 15, 2017.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Stemme AG Model
S10–VT gliders (type certificate previously
held by Stemme GmbH & Co. KG), all serial
numbers, that are:
(1) Equipped with a front gearbox, part
number (P/N) 11AG, with a serial number
listed in table 1 to paragraph (c) of this AD;
and
(2) are certificated in any category.
mstockstill on DSK30JT082PROD with RULES
TABLE 1 TO PARAGRAPH (c) OF THIS
AD—AFFECTED P/N 11AG (FRONT
GEARBOX) S/NS
80058/0814
80059/0915
80060/0915
80061/1115
80062/1215
80063/0116
80064/0416
80065/0616
80066/0716
80067/0916
80068/1016
80069/0117
80070/0217
80071/0217
Note 1 to paragraph (c) of this AD: Page
2 of Stemme AG Service Bulletin No. P062–
980010, dated April 21, 2017, provides a
pictorial of where the serial number of the
affected gearboxes are located.
VerDate Sep<11>2014
17:49 May 25, 2017
Jkt 241001
(d) Subject
Air Transport Association of America
(ATA) Code 61: Propellers/Propulsors.
(e) Reason
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 certain
propeller front transmission gear wheels
having insufficient material strength because
of improper heat treatment during
manufacturing. We are issuing this AD to
prevent failure of the propeller front
transmission gear wheels. This failure could
cause loss of power between the engine and
the propeller, which could result in reduced
control.
(f) Actions and Compliance
Unless already done, do the following
actions.
(1) Before further flight after June 15, 2017
(the effective date of this AD), replace the
front gearbox following a method approved
specifically for this AD by the FAA, Small
Airplane Directorate. Contact the FAA using
the information in paragraph (g)(1) of this AD
to obtain FAA-approved repair instructions
approved specifically for compliance with
this AD and incorporate those instructions.
Note 2 to paragraph (f)(1) of this AD: At
the issue date of this AD, no design solution
is available to restore the airworthiness of the
respective type design to a level
corresponding to its approved type design
specifications.
(2) As of June 15, 2017 (the effective date
of this AD), do not install a front gear box
listed in paragraph (c) of this AD.
(g) Other FAA AD Provisions
The following provisions also apply to this
AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, Standards Office,
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: Jim Rutherford, Aerospace Engineer,
FAA, Small Airplane Directorate, 901 Locust,
Room 301, Kansas City, Missouri 64106;
telephone: (816) 329–4165; fax: (816) 329–
4090; email: jim.rutherford@faa.gov. Before
using any approved AMOC on any glider to
which the AMOC applies, notify your
appropriate principal inspector (PI) in the
FAA Flight Standards District Office (FSDO),
or lacking a PI, your local FSDO.
(2) Airworthy Product: For any requirement
in this AD to obtain corrective actions from
a manufacturer or other source, use these
actions if they are FAA-approved. Corrective
actions are considered FAA-approved if they
are approved by the State of Design Authority
(or their delegated agent). You are required
to assure the product is airworthy before it
is returned to service.
(h) Related Information
(1) Refer to MCAI European Aviation
Safety Agency (EASA) AD No. 2017–0072–E,
dated April 26, 2017, and Stemme AG
Service Bulletin No. P062–980010, dated
PO 00000
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24241
April 21, 2017, for related information. You
may examine the MCAI on the Internet at
https://www.regulations.gov by searching for
and locating Docket No. FAA–2017–0451.
(2) For information concerning this action,
contact STEMME AG service information
identified in this AD, contact STEMME AG,
Flugplatzstrasse F2, Nr. 6–7, D–15344
Strausberg, Germany; telephone: +49 (0)
3341–3612–0, fax: +49 (0) 3341–3612–30;
Internet: www.stemme.com.
Issued in Kansas City, Missouri, on May 9,
2017.
Melvin Johnson,
Acting Manager, Small Airplane Directorate,
Aircraft Certification Service.
[FR Doc. 2017–10402 Filed 5–25–17; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 71
[Docket No. FAA–2016–9511; Airspace
Docket No. 16–ASW–20]
Amendment of Class D Airspace;
Kingsville, TX
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
This action amends the legal
description of Class D airspace
extending up to 2,500 feet above the
surface at Kingsville Naval Air Station
(NAS), Kingsville, TX. This action is
necessary due to the decommissioning
of the Kingsville radio beacon (RBN),
and cancellation of the RBN approach,
and enhances the safety and
management of instrument flight rules
(IFR) operations at the airport. This
action also updates the geographic
coordinates of Kingsville Naval Air
Station, Kingsville, TX, to coincide with
the FAA’s aeronautical database.
DATES: Effective 0901 UTC, September
14, 2017. The Director of the Federal
Register approves this incorporation by
reference action under Title 1, Code of
Federal Regulations, part 51, subject to
the annual revision of FAA Order
7400.11 and publication of conforming
amendments.
ADDRESSES: FAA Order 7400.11A,
Airspace Designations and Reporting
Points, and subsequent amendments can
be viewed online at https://www.faa.gov/
air_traffic/publications/. For further
information, you can contact the
Airspace Policy Group, Federal Aviation
Administration, 800 Independence
Avenue SW., Washington, DC 20591;
telephone: (202) 267–8783. The Order is
also available for inspection at the
SUMMARY:
E:\FR\FM\26MYR1.SGM
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]]>Agencies
[Federal Register Volume 82, Number 101 (Friday, May 26, 2017)]
[Rules and Regulations]
[Pages 24239-24241]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-10402]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2017-0451; Directorate Identifier 2017-CE-015-AD;
Amendment 39-18885; AD 2017-10-11]
RIN 2120-AA64
Airworthiness Directives; Stemme AG Gliders
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule; request for comments.
-----------------------------------------------------------------------
SUMMARY: We are adopting a new airworthiness directive (AD) for Stemme
AG Model S10-VT gliders (type certificate previously held by Stemme
GmbH & Co. KG). This AD results from 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 certain propeller front
transmission gear wheels having insufficient material strength because
of improper heat treatment
[[Page 24240]]
during manufacturing. We are issuing this AD to require actions to
address the unsafe condition on these products.
DATES: This AD is effective June 15, 2017.
We must receive comments on this AD by July 10, 2017.
ADDRESSES: You may send comments by any of the following methods:
Federal eRulemaking Portal: Go to https://www.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: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE., Washington, DC 20590, between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal holidays.
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-2017-
0451; or in person at the Docket Management Facility between 9 a.m. and
5 p.m., Monday through Friday, except Federal holidays. The AD docket
contains this AD, the regulatory evaluation, any comments received, and
other information. The street address for the Docket Office (telephone
(800) 647-5527) is in the ADDRESSES section. Comments will be available
in the AD docket shortly after receipt.
FOR FURTHER INFORMATION CONTACT: Jim Rutherford, Aerospace Engineer,
FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City,
Missouri 64106; telephone: (816) 329-4165; fax: (816) 329-4090; email:
jim.rutherford@faa.gov.
SUPPLEMENTARY INFORMATION:
Discussion
The European Aviation Safety Agency (EASA), which is the Technical
Agent for the Member States of the European Community, has issued AD
No. 2017-0072-E, dated April 26, 2017 (referred to after this as ``the
MCAI''), to correct an unsafe condition for the specified products. The
MCAI states:
It has been determined that, following improper heat treatment
during manufacture, the material strength of an identified batch of
propeller front transmission gear wheels is insufficient.
This condition, if not corrected, can lead to failure of a gear
wheel, with possible loss of the power transmission between the
engine and the propeller and, eventually, reduced control of the
sailplane.
Prompted by these determinations, Stemme issued Service Bulletin
(SB) P062-980010, providing instructions not to operate sailplanes
equipped with affected parts.
For the reasons described above, this [EASA] AD requires
replacement of affected gearboxes.
You may examine the MCAI on the Internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2017-
0451.
FAA's Determination and Requirements of the AD
This product has been approved by the aviation authority of another
country, and is approved for operation in the United States. Pursuant
to our bilateral agreement with this State of Design Authority, they
have notified us of the unsafe condition described in the MCAI and
service information referenced above. We are issuing this AD because we
evaluated all information provided by the State of Design Authority and
determined the unsafe condition exists and is likely to exist or
develop on other products of the same type design.
FAA's Determination of the Effective Date
An unsafe condition exists that requires the immediate adoption of
this AD. The FAA has found that the risk to the flying public justifies
waiving notice and comment prior to adoption of this rule because
improper heat treatment of the propeller front transmission gear wheels
could cause the gear wheel to fail. This failure could cause loss of
power between the engine and the propeller, which could result in
reduced control. Therefore, we determined that notice and opportunity
for public comment before issuing this AD are impracticable and that
good cause exists for making this amendment effective in fewer than 30
days.
Comments Invited
This AD is a final rule that involves requirements affecting flight
safety, and we did not precede it by notice and opportunity for public
comment. We invite you to send any written relevant data, views, or
arguments about this AD. Send your comments to an address listed under
the ADDRESSES section. Include ``Docket No. FAA-2017-0451; Directorate
Identifier 2017-CE-015-AD'' at the beginning of your comments. We
specifically invite comments on the overall regulatory, economic,
environmental, and energy aspects of this AD. We will consider all
comments received by the closing date and may amend this AD because of
those comments.
We will post all comments we receive, without change, to https://www.regulations.gov, including any personal information you provide. We
will also post a report summarizing each substantive verbal contact we
receive about this AD.
Costs of Compliance
There are approximately 50 Stemme AG Model S10-VT gliders of U.S.
registry but only 14 serial numbers of the part number (P/N) 11AG front
gearbox. Therefore, the most gliders of U.S. registry affected would be
14. According to Stemme AG, there are only 2 of the affected gearboxes
installed on gliders of U.S. registery.
At the issue date of this AD, no design solution is available to
restore the airworthiness of the respective type design to a level
corresponding to its approved type design specifications. Therefore,
the FAA cannot determine the cost of returning the affected gliders to
service.
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.
We are 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
We determined that 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,
[[Page 24241]]
(2) Is not a ``significant rule'' under the DOT Regulatory Policies
and Procedures (44 FR 11034, February 26, 1979),
(3) Will not affect intrastate aviation in Alaska, and
(4) 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]
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2. The FAA amends Sec. 39.13 by adding the following new AD:
2017-10-11 Stemme AG: Amendment 39-18885; Docket No. FAA-2017-0451;
Directorate Identifier 2017-CE-015-AD.
(a) Effective Date
This airworthiness directive (AD) becomes effective June 15,
2017.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Stemme AG Model S10-VT gliders (type
certificate previously held by Stemme GmbH & Co. KG), all serial
numbers, that are:
(1) Equipped with a front gearbox, part number (P/N) 11AG, with
a serial number listed in table 1 to paragraph (c) of this AD; and
(2) are certificated in any category.
Table 1 to Paragraph (c) of This AD--Affected P/N 11AG (Front Gearbox) S/
Ns
------------------------------------------------------------------------
------------------------------------------------------------------------
80058/0814 80065/0616
80059/0915 80066/0716
80060/0915 80067/0916
80061/1115 80068/1016
80062/1215 80069/0117
80063/0116 80070/0217
80064/0416 80071/0217
------------------------------------------------------------------------
Note 1 to paragraph (c) of this AD: Page 2 of Stemme AG Service
Bulletin No. P062-980010, dated April 21, 2017, provides a pictorial
of where the serial number of the affected gearboxes are located.
(d) Subject
Air Transport Association of America (ATA) Code 61: Propellers/
Propulsors.
(e) Reason
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 certain
propeller front transmission gear wheels having insufficient
material strength because of improper heat treatment during
manufacturing. We are issuing this AD to prevent failure of the
propeller front transmission gear wheels. This failure could cause
loss of power between the engine and the propeller, which could
result in reduced control.
(f) Actions and Compliance
Unless already done, do the following actions.
(1) Before further flight after June 15, 2017 (the effective
date of this AD), replace the front gearbox following a method
approved specifically for this AD by the FAA, Small Airplane
Directorate. Contact the FAA using the information in paragraph
(g)(1) of this AD to obtain FAA-approved repair instructions
approved specifically for compliance with this AD and incorporate
those instructions.
Note 2 to paragraph (f)(1) of this AD: At the issue date of this
AD, no design solution is available to restore the airworthiness of
the respective type design to a level corresponding to its approved
type design specifications.
(2) As of June 15, 2017 (the effective date of this AD), do not
install a front gear box listed in paragraph (c) of this AD.
(g) Other FAA AD Provisions
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager,
Standards Office, 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: Jim Rutherford, Aerospace Engineer, FAA, Small
Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri
64106; telephone: (816) 329-4165; fax: (816) 329-4090; email:
jim.rutherford@faa.gov. Before using any approved AMOC on any glider
to which the AMOC applies, notify your appropriate principal
inspector (PI) in the FAA Flight Standards District Office (FSDO),
or lacking a PI, your local FSDO.
(2) Airworthy Product: For any requirement in this AD to obtain
corrective actions from a manufacturer or other source, use these
actions if they are FAA-approved. Corrective actions are considered
FAA-approved if they are approved by the State of Design Authority
(or their delegated agent). You are required to assure the product
is airworthy before it is returned to service.
(h) Related Information
(1) Refer to MCAI European Aviation Safety Agency (EASA) AD No.
2017-0072-E, dated April 26, 2017, and Stemme AG Service Bulletin
No. P062-980010, dated April 21, 2017, for related information. You
may examine the MCAI on the Internet at https://www.regulations.gov
by searching for and locating Docket No. FAA-2017-0451.
(2) For information concerning this action, contact STEMME AG
service information identified in this AD, contact STEMME AG,
Flugplatzstrasse F2, Nr. 6-7, D-15344 Strausberg, Germany;
telephone: +49 (0) 3341-3612-0, fax: +49 (0) 3341-3612-30; Internet:
www.stemme.com.
Issued in Kansas City, Missouri, on May 9, 2017.
Melvin Johnson,
Acting Manager, Small Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2017-10402 Filed 5-25-17; 8:45 am]
BILLING CODE 4910-13-P
