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

ACTION: Final rule.

SUMMARY: We are adopting a new airworthiness directive (AD) for GROB-
WERKE GMBH & CO KG Models G102 STANDARD ASTIR III, G102 CLUB ASTIR III,
and G102 CLUB ASTIR IIIb gliders and BURKHART GROB LUFT--UND RAUMFAHRT
GmbH & CO KG Models G103 TWIN II, G103A TWIN II ACRO, G103C TWIN III
ACRO, and G 103 C Twin III SL gliders. This AD results from mandatory
continuing airworthiness information (MCAI) issued by an aviation
authority of another country to identify and correct an unsafe
condition on an aviation product. The MCAI describes the unsafe
condition as plastic control cable pulleys developing cracks due to
aging. We are issuing this AD to require actions to address the unsafe
condition on these products.

DATES: This AD is effective August 27, 2014.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in the AD as of August 27,
2014.

ADDRESSES: You may examine the AD docket on the Internet at http://
www.regulations.gov by searching for and locating Docket No. FAA-2014-
0292; or in person at Document Management Facility, 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 service information identified in this AD, contact Fiberglas-
Technik Rudolf Lindner GmbH & Co. KG, Steige 3, D-88487 Walpertshofen,
Germany; telephone: +49 (0) 7353/22 43; fax: +49 (0) 7353/30 96; email:
Lindner.com">info@LTB-Lindner.com; Web site: http://www.ltb-lindner.com/
home.104.html. You may view this referenced service information at the
FAA, Small Airplane Directorate, 901 Locust, Kansas City, Missouri
64106. For information on the availability of this material at the FAA,
call (816) 329-4148.

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

We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 by adding an AD that would apply to GROB-WERKE GMBH & CO KG
Models G102 STANDARD ASTIR III, G102 CLUB ASTIR III, and G102 CLUB
ASTIR IIIb gliders and BURKHART GROB LUFT--UND RAUMFAHRT GmbH & CO KG
Models G103 TWIN II, G103A TWIN II ACRO, G103C TWIN III ACRO, and G 103
C Twin III SL gliders. The NPRM was published in the Federal Register
on May 6, 2014 (79 FR 25753). The NPRM proposed to correct an unsafe
condition for the specified products and was based on MCAI originated
by an aviation authority of another country. The MCAI states:

Control cable pulleys made from plastic (white or brown
material) in the rudder control unit were reported to develop cracks
due to aging. In one case, jamming of the rudder control unit was
reported.
This condition, if not detected and corrected, could cause cable
pulleys to break, potentially jamming the rudder control unit and
resulting in loss of control of the sailplane.
To address this potential unsafe condition, Fiberglas-Technik
issued Technische Mitteilung/Service Bulletin TM-G05/SB-G05 and
Anweisung/Instructions A/I-G05 (one document) to provide
instructions for the replacement of plastic cable pulleys with
pulleys made from aluminium.
For the reason described above, this AD requires identification
and replacement of plastic cable pulleys in the rudder control unit.
Plastic cable pulleys may also be installed in the cable
circuits of pedal adjustment and/or tow hook actuation, their
replacement is not required by this AD.

The MCAI can be found in the AD docket on the Internet at: http://www.regulations.gov/#!documentDetail;D=FAA-2014-0292-0002.

Comments

We gave the public the opportunity to participate in developing
this AD. We received no comments on the NPRM (79 FR 25753, May 6, 2014)
or on the determination of the cost to the public.

Conclusion

We reviewed the relevant data and determined that air safety and
the public interest require adopting the AD as proposed except for
minor editorial changes. We have determined that these minor changes:
Are consistent with the intent that was proposed in the
NPRM (79 FR 25753, May 6, 2014) for correcting the unsafe condition;
and
Do not add any additional burden upon the public than was
already proposed in the NPRM (79 FR 25753, May 6, 2014).

Costs of Compliance

We estimate that this AD will affect 118 products of U.S. registry.
We also estimate that it would take about .5 work-hour per product to
comply with the basic requirements of this AD. The average labor rate
is $85 per work-hour.
Based on these figures, we estimate the cost of the AD on U.S.
operators to be $5,015, or $42.50 per product.
In addition, we estimate that any necessary follow-on actions would
take about 2 work-hours and require parts costing $244, for a cost of
$414 per product. We have no way of determining the number of products
that may need these actions.

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 this AD:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(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.

Examining the AD Docket

You may examine the AD docket on the Internet at http://www.regulations.
gov by searching for and locating Docket No. FAA-2014-
0292; 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 the NPRM, 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.

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.

Sec. 39.13 [Amended]

2. The FAA amends Sec. 39.13 by adding the following new AD: