[Federal Register Volume 84, Number 115 (Friday, June 14, 2019)]
[Rules and Regulations]
[Pages 27707-27708]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2019-12626]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 21
[Docket No. FAA-2019-0197]
Airworthiness Criteria: Glider Design Criteria for Alexander
Schleicher GmbH & Co. Segelflugzeugbau Model ASK 21 B Glider
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Issuance of final airworthiness design criteria.
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SUMMARY: These airworthiness design criteria are issued to Alexander
Schleicher GmbH & Co. Segelflugzeugbau for the Model ASK 21 B glider.
The administrator finds the design criteria, which make up the
certification basis for the Model ASK 21 B glider, acceptable.
DATES: These airworthiness design criteria are effective July 15, 2019.
FOR FURTHER INFORMATION CONTACT: Mr. Jim Rutherford, AIR-692, Federal
Aviation Administration, Policy & Innovation Division, Small Airplane
Standards Branch, 901 Locust, Room 301, Kansas City, MO 64106,
telephone (816) 329-4165, FAX (816) 329-4090.
SUPPLEMENTARY INFORMATION:
Background
On August 16, 2018, Alexander Schleicher GmbH & Co.
Segelflugzeugbau (Alexander
[[Page 27708]]
Schleicher) applied for validation of a type certificate change to add
the Model ASK 21 B glider in accordance with the ``Technical
Implementation Procedures for Airworthiness and Environmental
Certification Between the FAA and the European Aviation Safety Agency
(EASA),'' Revision 6, dated September 22, 2017. This model is a
modified version of the Model ASK 21 glider and will be documented on
existing Type Certificate Number (No.) G47EU. The Model ASK 21 B is a
two-seat, mid-wing glider constructed from glass-fiber reinforced
plastic and features a 55.8 foot (17 meters) wingspan with airbrakes on
the upper wing surface. The glider has a non-retractable landing gear
with a nose wheel and shock-absorbed, braked main wheel and a T-type
tailplane. The glider has a maximum weight of 1,323 pounds (600
kilograms).
EASA type certificated the Model ASK 21 B glider in the utility and
aerobatic categories and issued Type Certificate No. EASA.A.221, dated
August 9, 2018. The associated EASA Type Certificate Data Sheet (TCDS)
No. EASA.A.221 defined the certification basis, which Alexander
Schleicher submitted to the FAA for review and acceptance.
Gliders are type certificated by the FAA as special class aircraft
for which airworthiness standards have not yet been established by
regulation. Under the provisions of 14 CFR 21.17(b), the airworthiness
standards for special class aircraft are those found by the FAA to be
appropriate and applicable to the specific type design. FAA Advisory
Circular (AC) 21.17-2A \1\ provides guidance on acceptable design
criteria for the type certification of gliders and powered gliders in
the United States. AC 21.17-2A allows applicants to utilize the Joint
Aviation Requirements (JAR)-22,\2\ other airworthiness criteria
comparable to 14 CFR part 23, or a combination of both as the means for
showing compliance for glider certification.
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\1\ Ref AC 21.17-2A, ``Type Certification--Fixed-Wing Gliders
(Sailplanes), Including Powered Gliders,'' dated February 10, 1993.
\2\ Ref JAR-22, ``Sailplanes and Powered Sailplanes.''
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Comments
Airworthiness Criteria: Glider Design Criteria for Alexander
Schleicher GmbH & Co. Segelflugzeugbau Model ASK 21 B Glider was
published in the Federal Register on April 2, 2019 (84 FR 12529). No
comments were received and the airworthiness design criteria are
adopted as proposed.
Type Certification Basis
The certification basis for the Model ASK 21 B will be the same as
the certification basis for the Model ASK 21 as shown on TCDS No.
G47EU, Revision 1, except for areas affected by the change, which will
use EASA Certification Specification (CS)-22 \3\ as shown in these
airworthiness design criteria.
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\3\ Ref EASA CS-22, ``Certification Specifications for
Sailplanes and Powered Sailplanes,'' amendment 2, dated March 5,
2009.
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Citation
The authority citation for these airworthiness design criteria is
as follows:
Authority: 49 U.S.C. 106(g), 40113, and 44701.
The Airworthiness Design Criteria
Applicable Airworthiness Criteria Under 14 CFR 21.17(b)
Based on the Special Class provisions of Sec. 21.17(b), the
following airworthiness requirements form the FAA certification basis
for the Model ASK 21 B:
1. 14 CFR part 21, effective February 1, 1965, including amendments
21-1 through 21-53.
2. Lufttuechtigkeitsforderungen fuer Segelflugzeuge and Motorsegler
(LFSM) Airworthiness Requirements for Sailplanes and Powered
Sailplanes, dated October 23, 1975.
3. JAR-22, dated April 1, 1980, including amendment 1, dated May
18, 1981.
4. CS-22, amendment 2, dated March 5, 2009, for the following
regulations: CS 22.147, 22.455, 22.477, 22.561 except (b)(2), 22.595,
22.597, 22.629, 22.677, 22.685, 22.689, 22.721, 22.771, 22.773, 22.777,
22.779, 22.780, 22.781, 22.785, 22.786, 22.787, 22.788, 22.807, and
22.831.
5. AC 21.23-1, section 5(e)(6), dated January 12, 1981.
6. Operations are limited to Day VFR and to flying in Instrument
Meteorological Conditions (IMC) if the glider is equipped as required
under 14 CFR 91.205. Night operation is prohibited.
7. FAA Type Certificate Application Date: August 16, 2018.
8. EASA Type Certificate No. EASA.A.221, Issue 05, dated August 9,
2018.
Issued in Kansas City, Missouri, on June 5, 2019.
Pat Mullen,
Manager, Small Airplane Standards Branch, Policy & Innovation Division,
Aircraft Certification Service.
[FR Doc. 2019-12626 Filed 6-13-19; 8:45 am]
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