AD 2016-22-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Schempp-Hirth Flugzeugbau GmbH | Discus-2a | Airworthiness Directives; Schempp-Hirth Flugzeugbau GmbH Gliders |
| aircraft | Schempp-Hirth Flugzeugbau GmbH | Discus-2b | Airworthiness Directives; Schempp-Hirth Flugzeugbau GmbH Gliders |
| aircraft | Schempp-Hirth Flugzeugbau GmbH | Discus-2c | Airworthiness Directives; Schempp-Hirth Flugzeugbau GmbH Gliders |
| aircraft | Schempp-Hirth Flugzeugbau GmbH | Discus 2cT | Airworthiness Directives; Schempp-Hirth Flugzeugbau GmbH Gliders |
| aircraft | Schempp-Hirth Flugzeugbau GmbH | Ventus-2a | Airworthiness Directives; Schempp-Hirth Flugzeugbau GmbH Gliders |
| aircraft | Schempp-Hirth Flugzeugbau GmbH | Ventus-2b | Airworthiness Directives; Schempp-Hirth Flugzeugbau GmbH Gliders |
Unsafe Condition
Insufficient overlap of the airbrake panels, which can lead to interlocking and blockage of the airbrakes, possibly resulting in reduced control of the (powered) sailplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the overlap of the affected airbrake panels. Depending on findings, accomplish applicable corrective action(s) as specified in the referenced Technical Note.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Schempp-Hirth Flugzeugbau GmbH Models Discus-2a (serial numbers 1 through 253), Discus-2b (serial numbers 1 through 255), Discus-2c (serial numbers 1 through 61), Discus 2cT (serial numbers 1 through 127), Ventus-2a (serial numbers 1 through 178), and Ventus-2b (serial numbers 1 through 175).
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
We are adopting a new airworthiness directive (AD) for Schempp-Hirth Flugzeugbau GmbH Models Discus-2a, Discus-2b, Discus-2c, Discus 2cT, Ventus-2a, and Ventus-2b 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 insufficient overlap of the airbrake panels. We are issuing this AD to correct the unsafe condition on these products.
Applicability Source Text
Show captured applicability text from the source AD
(c) Applicability
This AD applies to the following Schempp-Hirth Flugzeugbau GmbH
model and serial number gliders, certificated in any category:
(1) Model Discus-2a, serial numbers 1 through 253;
(2) Model Discus-2b, serial numbers 1 through 255;
(3) Model Discus-2c, serial numbers 1 through 61;
(4) Model Discus 2cT, serial numbers 1 through 127;
(5) Model Ventus-2a, serial numbers 1 through 178; and
(6) Model Ventus-2b, serial numbers 1 through 175.
Document Text
Show stored source text (verify against official source)
[Federal Register Volume 81, Number 208 (Thursday, October 27, 2016)]
[Rules and Regulations]
[Pages 74666-74668]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2016-25674]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2016-6123; Directorate Identifier 2016-CE-007-AD;
Amendment 39-18690; AD 2016-22-01]
RIN 2120-AA64
Airworthiness Directives; Schempp-Hirth Flugzeugbau GmbH Gliders
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: We are adopting a new airworthiness directive (AD) for
Schempp-Hirth Flugzeugbau GmbH Models Discus-2a, Discus-2b, Discus-2c,
Discus 2cT, Ventus-2a, and Ventus-2b 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 insufficient overlap of the airbrake panels. We are issuing
this AD to correct the unsafe condition on these products.
DATES: This AD is effective December 1, 2016.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in the AD as of December 1,
2016.
ADDRESSES: You may examine the AD docket on the Internet at <a href="http://www.regulations.gov">http://www.regulations.gov</a> by searching for and locating Docket No. FAA-2016-
6123; 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 Schempp-
Hirth Flugzeugbau GmbH, Krebenstrasse 25, 73230 Kirchheim/Teck,
Germany; telephone: +49 7021 7298-0; fax: +49 7021 7298-199; email:
<a href="/cdn-cgi/l/email-protection#a8c1c6cec7e8dbcbc0cdc5d8d88594c988c0dacdce95" http: hirth.com">hirth.com</a>">info@schempp-<a href="http://hirth.com">hirth.com</a></a>; Internet: http://www.schempp-<a href="http://hirth.com">hirth.com</a>. 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.
It is also available on the Internet at <a href="http://www.regulations.gov">http://www.regulations.gov</a> by
searching for Docket No. FAA-2016-6123.
FOR FURTHER INFORMATION CONTACT: Jim Rutherford, Aerospace Engineer,
FAA,
[[Page 74667]]
Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri
64106; telephone: (816) 329-4165; fax: (816) 329-4090; email:
<a href="/cdn-cgi/l/email-protection#8ce6e5e1a2fef9f8e4e9feeae3fee8cceaededa2ebe3fa"><span class="__cf_email__" data-cfemail="38525155164a4d4c505d4a5e574a5c785e5959165f574e">[email protected]</span></a>.
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 Schempp-Hirth Flugzeugbau
Model Discus-2a, Discus-2b, Discus-2c, Discus 2cT, Ventus-2a, and
Ventus-2b gliders. The NPRM was published in the Federal Register on
April 27, 2016 (81 FR 24743). The NPRM proposed to correct an unsafe
condition for the specified products and was based on mandatory
continuing airworthiness information (MCAI) originated by an aviation
authority of another country. The MCAI states:
Operational experience shows that, under certain conditions, the
overlap between the two airbrake panels can be insufficient and the
panels can interlock.
This condition, if not corrected, could lead to blockage of the
airbrakes, possibly resulting in reduced control of the (powered)
sailplane.
To address this potential unsafe condition, Schempp-Hirth
Flugzeugbau GmbH issued TN 349-39, 360-29, 825-55 and 863-22 (single
document, hereafter referred to as `the TN' in this AD), to provide
inspection instructions to verify the correct overlap between the
two affected airbrake panels.
For the reason described above, this AD requires a one-time
inspection of the overlap of the affected airbrake panels and,
depending on findings, accomplishment of applicable corrective
action(s).
The MCAI can be found in the AD docket on the Internet at: <a href="https://www.regulations.gov/document?D=FAA-2016-6123-0002">https://www.regulations.gov/document?D=FAA-2016-6123-0002</a>.
Comments
We gave the public the opportunity to participate in developing
this AD. The following presents the comments received on the proposal
and the FAA's response to each comment.
Request for Pilot-Owner To Conduct Inspection
Glenn Yeldezian commented that the EASA AD mandated the use of a
Schempp-Hirth Technical Note that allowed for the pilot-owner to
accomplish the inspection. The commenter requested that the FAA AD
include this option for the pilot-owner to accomplish the inspection
or, alternately, asked whether the revised Technical Note is enough
justification for the pilot-owner to perform the inspection.
We do not agree with allowing pilot-owner to do this inspection.
The U.S. regulatory system will not allow a pilot-owner to accomplish
inspections on their gliders in accordance with Title 14 Code of
Federal Regulations (CFR) part 43. Therefore, we will not revise the AD
to account for the allowance in the foreign AD for the pilot-owner to
accomplish the specified inspections.
Conclusion
We reviewed the relevant data, considered the comment received, 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:
<bullet> Are consistent with the intent that was proposed in the
NPRM for correcting the unsafe condition; and
<bullet> Do not add any additional burden upon the public than was
already proposed in the NPRM.
Related Service Information Under 1 CFR Part 51
We reviewed Schempp-Hirth Flugzeugbau GmbH Technical Note No. 349-
39, 360-29, 825-55, 863-22; dated January 29, 2016 (published as a
single document), and Arbeitsanweisung (English translation: Working
instructions) for Technische Mitteilung Nr. (English translation:
Technical Note No.) 349-39, 360-29, 825-55, 863-22, Ausgabe (English
translation: Issue) 1, Datum (English translation: Dated) January 22,
2016 (published as a single document). In combination, this service
information describes procedures for inspection of the overlap of the
airbrake panels and, if necessary, replacement of the airbrake panels.
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 of the AD.
Costs of Compliance
We estimate that this AD will affect 86 products of U.S. registry.
We also estimate that it would take about 2 work-hours per product to
comply with the basic requirements of this AD.
Based on these figures, we estimate the cost of this AD on U.S.
operators to be $14,620, or $170 per product.
In addition, we estimate that any necessary follow-on actions would
take about 4 work-hours and require parts costing $100, for a cost of
$440 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 <a href="http://www.regulations.gov">http://www.regulations.gov</a> by searching for and locating Docket No. FAA-2016-
6123; 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.
[[Page 74668]]
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 AD:
2016-22-01 Schempp-Hirth Flugzeugbau: Amendment 39-18690; Docket No.
FAA-2016-6123; Directorate Identifier 2016-CE-007-AD.
(a) Effective Date
This airworthiness directive (AD) becomes effective December 1,
2016.
(b) Affected ADs
None.
(c) Applicability
This AD applies to the following Schempp-Hirth Flugzeugbau GmbH
model and serial number gliders, certificated in any category:
(1) Model Discus-2a, serial numbers 1 through 253;
(2) Model Discus-2b, serial numbers 1 through 255;
(3) Model Discus-2c, serial numbers 1 through 61;
(4) Model Discus 2cT, serial numbers 1 through 127;
(5) Model Ventus-2a, serial numbers 1 through 178; and
(6) Model Ventus-2b, serial numbers 1 through 175.
(d) Subject
Air Transport Association of America (ATA) Code 27: Flight
Controls.
(e) Reason
This AD was prompted by 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 MCAI describes the unsafe condition as insufficient
overlap of the airbrake panels. We are issuing this proposed AD to
require actions to address the unsafe condition on these products.
We are issuing this AD to prevent interlocking of the airbrake
panels, which could lead to blockage of the airbrakes and possible
loss of control.
(f) Actions and Compliance
Unless already done, do the following actions in paragraphs
(f)(1) and (2) of this AD:
(1) Within the next 40 days after December 1, 2016 (the
effective date of this AD), inspect the overlap of the airbrake
panels for a minimum overlap of at least 3 millimeters following
Action 1 in Schempp-Hirth Flugzeugbau GmbH Technische Mitteilung Nr.
(English translation: Technical Note No.) 349-39, 360-29, 825-55,
863-22, dated January 29, 2016 (published as a single document); and
Action 1 in the associated Arbeitsanweisung (English translation:
Working instructions) for Technische Mitteilung Nr. (English
translation: Technical Note No.) 349-39, 360-29, 825-55, 863-22,
Ausgabe (English translation: Issue) 1, Datum (English translation:
Dated) January 22, 2016 (published as a single document).
Note 1 to paragraph (f)(1) and (2) of this AD: This service
information contains German to English translation. The EASA used
the English translation in referencing the document. For
enforceability purposes, we will refer to the Schempp-Hirth
Flugzeugbau GmbH service information as it appears on the document.
(2) If, during the inspection required in paragraph (f)(1) of
this AD, the overlap on the airbrake panels is found to be less than
3 millimeters, before further flight, install eccentric bushings and
make adjustments following Action 2 in Schempp-Hirth Flugzeugbau
GmbH Technische Mitteilung Nr. (English translation: Technical Note
No.) 349-39, 360-29, 825-55, 863-22, dated January 29, 2016
(published as a single document); and Action 2 in the associated
Arbeitsanweisung (English translation: Working instructions) for
Technische Mitteilung Nr. (English translation: Technical Note No.)
349-39, 360-29, 825-55, 863-22, Ausgabe (English translation: Issue)
1, Datum (English translation: Dated) January 22, 2016 (published as
a single document).
Note 2 to paragraph (f)(2) of this AD: The Schempp-Hirth
Flugzeugbau GmbH Technische Mitteilung Nr. (English translation:
Technical Note No.) 349-39, 360-29, 825-55, 863-22, dated January
29, 2016 (published as a single document) includes four German
language drawings that you may use for additional information, but
the drawings are not required to comply with 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:
<a href="/cdn-cgi/l/email-protection#5c363531722e292834392e3a332e381c3a3d3d723b332a"><span class="__cf_email__" data-cfemail="1b71727635696e6f737e697d74697f5b7d7a7a357c746d">[email protected]</span></a>. Before using any approved AMOC on any
airplane 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
Refer to MCAI European Aviation Safety Agency (EASA) AD No.:
2016-0027, dated February 9, 2016, for related information. The MCAI
can be found in the AD docket on the Internet at: <a href="https://www.regulations.gov/document?D=FAA-2016-6123-0002">https://www.regulations.gov/document?D=FAA-2016-6123-0002</a>.
(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) Schempp-Hirth Flugzeugbau GmbH Technische Mitteilung Nr.
(English translation: Technical Note No.) 349-39, 360-29, 825-55,
863-22, dated January 29, 2016 (published as a single document); and
(ii) Arbeitsanweisung (English translation: Working
instructions) for Technische Mitteilung Nr. (English translation:
Technical Note No.) 349-39, 360-29, 825-55, 863-22, Ausgabe (English
translation: Issue) 1, Datum (English translation: Dated) January
22, 2016 (published as a single document).
Note 3 to paragraph (i)(2) of this AD: This service information
contains German to English translation. The EASA used the English
translation in referencing the document. For enforceability
purposes, we will refer to the Schempp-Hirth Flugzeugbau GmbH
service information as it appears on the document.
(3) For Schempp-Hirth Flugzeugbau GmbH service information
identified in this AD, contact Schempp-Hirth Flugzeugbau GmbH,
Krebenstrasse 25, 73230 Kirchheim/Teck, Germany; telephone: +49 7021
7298-0; fax: +49 7021 7298-199; email: <a href="/cdn-cgi/l/email-protection#caa3a4aca58ab9a9a2afa7babae7f6abeaa2b8afacf7" http: hirth.com">hirth.com</a>">info@schempp-<a href="http://hirth.com">hirth.com</a></a>;
Internet: http://www.schempp-<a href="http://hirth.com">hirth.com</a>.
(4) You may view this 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. In addition, you can access this service information
on the Internet at <a href="http://www.regulations.gov">http://www.regulations.gov</a> by searching for and
locating Docket No. FAA-2016-6123.
(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, call 202-741-6030, or go to: <a href="http://www.archives.gov/federal-register/cfr/ibr-locations.html">http://www.archives.gov/federal-register/cfr/ibr-locations.html</a>.
Issued in Kansas City, Missouri, on October 17, 2016.
Pat Mullen,
Acting Manager, Small Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2016-25674 Filed 10-26-16; 8:45 am]
BILLING CODE 4910-13-P
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Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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