AD 2020-19-12

final rule

Airworthiness Directives; Glasflugel

AD Number
2020-19-12
Status
final_rule
Effective Date
Product Category
aircraft
Docket
FAA-2019-0560
FR Citation
Federal Register Volume 85, Number 181 (Thursday, September 17, 2020)

Applicability

TypeManufacturerModelDetails
aircraft Glasflugel Club Libelle 205 Airworthiness Directives; Glasflugel
aircraft Glasflugel H 301 Libelle Airworthiness Directives; Glasflugel
aircraft Glasflugel H 301B Libelle Airworthiness Directives; Glasflugel
aircraft Glasflugel Kestrel Airworthiness Directives; Glasflugel
aircraft Glasflugel Mosquito Airworthiness Directives; Glasflugel
aircraft Glasflugel Standard Libelle Airworthiness Directives; Glasflugel
aircraft Glasflugel Standard Libelle-201B Airworthiness Directives; Glasflugel

Unsafe Condition

Jamming between the double two-ring end of the towing cable and the deflector angles of the center of gravity (C.G.) release mechanism was reported. Subsequent investigation identified incorrect geometry of the deflector angles of the affected part as likely cause of the jamming.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Inspect the distance between the deflector-angles of the C.G. release mechanism and revise the operations section of the sailplane flight manual (SFM). Depending on inspection findings, accomplish applicable corrective actions such as modifying the deflector angles.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

before the next winch launch

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Glasflugel Models Club Libelle 205, H 301 Libelle, H 301B Libelle, Kestrel, Mosquito, Standard Libelle, and Standard Libelle-201B gliders

AI-generated summary from the source AD text. Verify against the official source before acting.

Federal Register Abstract

Equipment/Furnishing

Applicability Source Text

Show captured applicability text from the source AD
AD Final Rules - 2020-19-12.pdf
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DetailsAttachments/Public Comments
AD Number:
2020-19-12
Document Type:
AD Final Rules
Docket Number:
FAA-2019-0560
Subject Heading:
Airworthiness Directives; Glasflugel
Subject:
Equipment/Furnishing
Status:
Current
Citation:
Federal Register Volume 85, Number 181 (Thursday, September 17, 2020)
Citation Publish Date:
09/17/2020
Effective Date:
10/22/2020
Make:
Glasflugel
Model:
Club Libelle 205 | H 301 Libelle | H 301B Libelle | Kestrel | Mosquito | Standard Libelle | Standard Libelle-201B
Product Type:
Aircraft
Product Subtype:
Glider
Affected AD:
Superseded AD:
2018-21-04
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
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[Federal Register Volume 85, Number 181 (Thursday, September 17, 2020)]


[Rules and Regulations]


[Pages 57965-57967]


From the Federal Register Online via the Government Publishing Office [www.gpo.gov]


[FR Doc No: 2020-20439]


––––––––––––––––––––––––––––––––––


DEPARTMENT OF TRANSPORTATION


Federal Aviation Administration


14 CFR Part 39


[Docket No. FAA-2019-0560; Product Identifier 2018-CE-056-AD; Amendment 39-21255; AD


No. 2020-19-12]


RIN 2120-AA64


Airworthiness Directives; Glasflugel


AGENCY:
 
Federal Aviation Administration (FAA), DOT.


ACTION:
 
Final rule.


––––––––––––––––––––––––––––––––––


SUMMARY:
 
The FAA is superseding Airworthiness Directive (AD) 2018-21-04 for Glasflugel


Models Club Libelle 205, H 301 “Libelle,” H 301B “Libelle,” Kestrel, Mosquito, Standard “Libelle,”


and Standard Libelle-201B gliders. This AD results from 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 jamming


between the double two-ring end of the towing cable and the deflector angles of the center of gravity


(C.G.) release mechanism. The FAA is issuing this AD to address the unsafe condition on these


products.


DATES:
 
This AD is effective October 22, 2020.


The Director of the Federal Register approved the incorporation by reference of a certain


publication listed in this AD as of November 13, 2018 (83 FR 53573, October 24, 2018).


ADDRESSES:
 
For service information identified in this final rule, contact Glasfaser Flugzeug-


Service GmbH, Hansjorg Streifeneder, Hofener Weg 61, 72582 Grabenstetten, Germany; telephone:


+49 (0)7382/1032; fax: +49 (0)7382/1629; email: info@streifly.de; internet:


https://www.streifly.de/kontakt-e.htm. You may review this referenced 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-2019-0560.
2


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-2019-0560; 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


regulatory evaluation, any comments received, and other information. The address for Docket


Operations is Docket Operations, 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:
 
Jim Rutherford, Aerospace Engineer, FAA,


General Aviation & Rotorcraft Section, International Validation Branch, 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 FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by


removing AD 2018-21-04, Amendment 39-19462 (83 FR 53573, October 24, 2018) (“AD 2018-21-


04”) and adding a new AD. AD 2018-21-04 applied to Glasflugel Models Club Libelle 205, H 301


“Libelle,” H 301B “Libelle,” Kestrel, Mosquito, Standard “Libelle,” and Standard Libelle-201B


gliders and required inspecting the distance between the deflector-angles of the C.G. release


mechanism and revising the operations section of the sailplane flight manual (SFM) before the next


winch launch. The NPRM published in the Federal Register on August 5, 2019 (84 FR 37974).


AD 2018-21-04 was based on MCAI originated by the European Aviation Safety Agency


(EASA), which is the Technical Agent for the Member States of the European Community. EASA


issued Emergency AD No. 2018-0143-E, dated July 6, 2018 (referred to after this as “the MCAI”), to


correct an unsafe condition for the specified products. The MCAI states:


Jamming between the double two ring end of the towing cable and the deflector angles


of the C.G. release mechanism was reported. Subsequent investigation identified


incorrect geometry of the deflector angles of the affected part as likely cause of the


jamming.


This condition, if not detected and corrected, could lead to failure to disconnect the


towing cable, possibly resulting in reduced or loss of control of the sailplane.


To address this potential unsafe condition, Glasfaser Flugzeug-Service GmbH issued


the TN [Technical Note] to provide inspection instructions and corrective action.


For the reasons described above, this [EASA] AD requires repetitive inspections of the


affected part, and, depending on findings, accomplishment of applicable corrective


action(s). This [EASA] AD also requires amendment of the sailplane Aircraft Flight


Manual (AFM).


You may examine the MCAI on the internet at https://www.regulations.gov by searching for and


locating Docket No. FAA-2019-0560.


The FAA issued AD 2018-21-04 as an interim action to address the immediate need for the


initial inspection of the distance between the deflector-angles of the C.G. release mechanism, any


necessary corrective action, and the revision of the flying operations section of the SFM. In the

Document Text

Show stored source text (verify against official source)
AD Final Rules - 2020-19-12.pdf
Copy URL
Document Versions
 Feedback
DetailsAttachments/Public Comments
AD Number:
2020-19-12
Document Type:
AD Final Rules
Docket Number:
FAA-2019-0560
Subject Heading:
Airworthiness Directives; Glasflugel
Subject:
Equipment/Furnishing
Status:
Current
Citation:
Federal Register Volume 85, Number 181 (Thursday, September 17, 2020)
Citation Publish Date:
09/17/2020
Effective Date:
10/22/2020
Make:
Glasflugel
Model:
Club Libelle 205 | H 301 Libelle | H 301B Libelle | Kestrel | Mosquito | Standard Libelle | Standard Libelle-201B
Product Type:
Aircraft
Product Subtype:
Glider
Affected AD:
Superseded AD:
2018-21-04
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
Automatic Zoom
Actual Size
Page Fit
Page Width
⁨50⁩%
⁨75⁩%
⁨100⁩%
⁨125⁩%
⁨150⁩%
⁨200⁩%
⁨300⁩%
⁨400⁩%
125%
of ⁨7⁩
1


[Federal Register Volume 85, Number 181 (Thursday, September 17, 2020)]


[Rules and Regulations]


[Pages 57965-57967]


From the Federal Register Online via the Government Publishing Office [www.gpo.gov]


[FR Doc No: 2020-20439]


––––––––––––––––––––––––––––––––––


DEPARTMENT OF TRANSPORTATION


Federal Aviation Administration


14 CFR Part 39


[Docket No. FAA-2019-0560; Product Identifier 2018-CE-056-AD; Amendment 39-21255; AD


No. 2020-19-12]


RIN 2120-AA64


Airworthiness Directives; Glasflugel


AGENCY:
 
Federal Aviation Administration (FAA), DOT.


ACTION:
 
Final rule.


––––––––––––––––––––––––––––––––––


SUMMARY:
 
The FAA is superseding Airworthiness Directive (AD) 2018-21-04 for Glasflugel


Models Club Libelle 205, H 301 “Libelle,” H 301B “Libelle,” Kestrel, Mosquito, Standard “Libelle,”


and Standard Libelle-201B gliders. This AD results from 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 jamming


between the double two-ring end of the towing cable and the deflector angles of the center of gravity


(C.G.) release mechanism. The FAA is issuing this AD to address the unsafe condition on these


products.


DATES:
 
This AD is effective October 22, 2020.


The Director of the Federal Register approved the incorporation by reference of a certain


publication listed in this AD as of November 13, 2018 (83 FR 53573, October 24, 2018).


ADDRESSES:
 
For service information identified in this final rule, contact Glasfaser Flugzeug-


Service GmbH, Hansjorg Streifeneder, Hofener Weg 61, 72582 Grabenstetten, Germany; telephone:


+49 (0)7382/1032; fax: +49 (0)7382/1629; email: info@streifly.de; internet:


https://www.streifly.de/kontakt-e.htm. You may review this referenced 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-2019-0560.
2


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-2019-0560; 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


regulatory evaluation, any comments received, and other information. The address for Docket


Operations is Docket Operations, 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:
 
Jim Rutherford, Aerospace Engineer, FAA,


General Aviation & Rotorcraft Section, International Validation Branch, 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 FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by


removing AD 2018-21-04, Amendment 39-19462 (83 FR 53573, October 24, 2018) (“AD 2018-21-


04”) and adding a new AD. AD 2018-21-04 applied to Glasflugel Models Club Libelle 205, H 301


“Libelle,” H 301B “Libelle,” Kestrel, Mosquito, Standard “Libelle,” and Standard Libelle-201B


gliders and required inspecting the distance between the deflector-angles of the C.G. release


mechanism and revising the operations section of the sailplane flight manual (SFM) before the next


winch launch. The NPRM published in the Federal Register on August 5, 2019 (84 FR 37974).


AD 2018-21-04 was based on MCAI originated by the European Aviation Safety Agency


(EASA), which is the Technical Agent for the Member States of the European Community. EASA


issued Emergency AD No. 2018-0143-E, dated July 6, 2018 (referred to after this as “the MCAI”), to


correct an unsafe condition for the specified products. The MCAI states:


Jamming between the double two ring end of the towing cable and the deflector angles


of the C.G. release mechanism was reported. Subsequent investigation identified


incorrect geometry of the deflector angles of the affected part as likely cause of the


jamming.


This condition, if not detected and corrected, could lead to failure to disconnect the


towing cable, possibly resulting in reduced or loss of control of the sailplane.


To address this potential unsafe condition, Glasfaser Flugzeug-Service GmbH issued


the TN [Technical Note] to provide inspection instructions and corrective action.


For the reasons described above, this [EASA] AD requires repetitive inspections of the


affected part, and, depending on findings, accomplishment of applicable corrective


action(s). This [EASA] AD also requires amendment of the sailplane Aircraft Flight


Manual (AFM).


You may examine the MCAI on the internet at https://www.regulations.gov by searching for and


locating Docket No. FAA-2019-0560.


The FAA issued AD 2018-21-04 as an interim action to address the immediate need for the


initial inspection of the distance between the deflector-angles of the C.G. release mechanism, any


necessary corrective action, and the revision of the flying operations section of the SFM. In the

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

This site is not affiliated with or endorsed by the FAA. Always verify with official sources.