Airworthiness Directives; Stemme AG Gliders, 3030-3032 [2022-00968]

Download as PDF 3030 Federal Register / Vol. 87, No. 13 / Thursday, January 20, 2022 / Rules and Regulations (i) Retained Replacement of Nose Wheel Steering Servo Valve Manifold With No Changes This paragraph restates the requirements of paragraph (h) of AD 2020–12–06 with no changes. Within 36 months after July 20, 2020 (the effective date of AD 2020–12–06), replace the nose wheel steering servo valve manifold with nose wheel steering servo valve manifold part number 5100–11 or 5105–5 in accordance with the Accomplishment Instructions of the customer bulletin that applies to your airplane configuration as listed in paragraphs (i)(1) through (3) of this AD, except you are not required to comply with step H: (1) Gulfstream IV Customer Bulletin Number 244, dated March 12, 2018; (2) Gulfstream G300 Customer Bulletin 244, dated March 12, 2018; or (3) Gulfstream G400 Customer Bulletin 244, dated March 12, 2018. lotter on DSK11XQN23PROD with RULES1 (j) Retained Records Inspection and Report of Results With No Changes This paragraph restates the requirements of paragraph (i) of AD 2020–12–06 with no changes. (1) Between 12 months and 24 months after the replacement of the nose wheel steering valve manifold assembly required in paragraph (i) of this AD, inspect all aircraft records for entries of an un-commanded nose wheel steering turn. (2) Within 10 days after the records inspection required in paragraph (j)(1) of this AD, report the results of the inspection, regardless of whether the inspection found any entries, to the FAA by either email: 9ASO-ATLCOS-Reporting@faa.gov; or by mail: Attn: Continued Operational Safety, Atlanta ACO Branch, FAA, 1701 Columbia Avenue, College Park, GA 30337. The report must include as much of the information listed in paragraphs (j)(2)(i) through (vii) of this AD as is known about the event: (i) Date of records inspection; (ii) Date and time of all un-commanded occurrences (if any); (iii) Airplane serial number; (iv) Weather and runway conditions at the time of each occurrence; (v) Copy of the pilot’s report of the occurrence (if available); (vi) Maintenance entry of the root cause of the un-commanded deflection (if available); and (vii) Any other information pertinent to the occurrence. (k) Alternative Methods of Compliance (AMOCs) (1) The Manager, Atlanta ACO Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the certification office, send it to the attention of the person identified in paragraph (l) of this AD. (2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager VerDate Sep<11>2014 16:03 Jan 19, 2022 Jkt 256001 of the local flight standards district office/ certificate holding district office. Federal Aviation Administration (l) Related Information For more information about this AD, contact Samuel Belete, Aviation Safety Engineer, Systems and Equipment Section, FAA, Atlanta ACO Branch, 1701 Columbia Avenue, College Park, GA 30337; phone: (404) 474–5580; fax: (404) 474–5606; email: samuel.belete@faa.gov. (m) 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. (3) The following service information was approved for IBR on July 20, 2020 (85 FR 36143, June 15, 2020). (i) Gulfstream IV Customer Bulletin Number 244, dated March 12, 2018. (ii) Gulfstream G300 Customer Bulletin 244, dated March 12, 2018. (iii) Gulfstream G400 Customer Bulletin 244, dated March 12, 2018. (iv) Gulfstream IV Airplane Flight Manual, Gulfstream Aerospace Document Number GAC–AC–GIV–OPS–0001, Revision 52, dated October 30, 2017. (v) Gulfstream G300 Airplane Flight Manual, Gulfstream Aerospace Document Number GAC–AC–G300–OPS–0001, Revision 20, dated October 30, 2017. (vi) Gulfstream G400 Airplane Flight Manual, Gulfstream Aerospace Document Number GAC–AC–G400–OPS–0001, Revision 20, dated October 30, 2017. (4) For service information identified in this AD, contact Gulfstream Aerospace Corporation, P.O. Box 2206, Savannah, GA 31402; phone: (800) 810–4853; email: pubs@ gulfstream.com; website: https:// www.gulfstream.com/en/customer-support/. (5) You may view this service information at FAA, Airworthiness Products Section, Operational Safety Branch, FAA, 901 Locust, Kansas City, MO 64106. For information on the availability of this material at the FAA, call (817) 222–5110. (6) 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, email: fr.inspection@nara.gov, or go to: https://www.archives.gov/federal-register/cfr/ ibr-locations.html. Issued on January 13, 2022. Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2022–00972 Filed 1–19–22; 8:45 am] BILLING CODE 4910–13–P PO 00000 Frm 00006 Fmt 4700 DEPARTMENT OF TRANSPORTATION Sfmt 4700 14 CFR Part 39 [Docket No. FAA–2021–0842; Project Identifier 2019–CE–032–AD; Amendment 39–21871; AD 2021–26–12] RIN 2120–AA64 Airworthiness Directives; Stemme AG Gliders Federal Aviation Administration (FAA), DOT. ACTION: Final rule. AGENCY: The FAA is adopting a new airworthiness directive (AD) for certain Stemme AG Model Stemme S 12 gliders. 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 the incorrect installation of an axle connecting the main landing gear (MLG) to the center steel frame. This AD requires inspecting the MLG installation and repairing if necessary. The FAA is issuing this AD to address the unsafe condition on these products. DATES: This AD is effective February 24, 2022. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of February 24, 2022. ADDRESSES: For service information identified in this final rule, contact STEMME AG, Flugplatzstrasse F2, Nr. 6–7, D–15344 Strausberg, Germany; phone: +49 (0) 3341 3612–0; fax: +49 (0) 3341 3612–30; email: airworthiness@ stemme.de; website: https:// www.stemme.com. You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 901 Locust, Kansas City, MO 64106. For information on the availability of this material at the FAA, call (817) 222–5110. It is also available at https://www.regulations.gov by searching for and locating Docket No. FAA–2021–0842. SUMMARY: Examining the AD Docket You may examine the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA–2021–0842; 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 MCAI, any comments received, and other information. The E:\FR\FM\20JAR1.SGM 20JAR1 Federal Register / Vol. 87, No. 13 / Thursday, January 20, 2022 / Rules and Regulations address for Docket Operations is U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE, Washington, DC 20590. Jim Rutherford, Aviation Safety Engineer, General Aviation & Rotorcraft Section, International Validation Branch, FAA, 901 Locust, Room 301, Kansas City, MO 64106; phone: (816) 329–4165; fax: (816) 329–4090; email: jim.rutherford@ faa.gov. FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: Background The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to certain serial-numbered Stemme AG Model Stemme S 12 gliders. The NPRM published in the Federal Register on October 8, 2021 (86 FR 56225). The NPRM was prompted by MCAI originated by the European Union Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Union. EASA issued AD 2019–0130–E, dated June 7, 2019 (referred to after this as ‘‘the MCAI’’), to address an unsafe condition on Stemme AG Model Stemme S 12 gliders. The MCAI states: Following a production acceptance flight, the pilot noticed that the aeroplane was in a banked position on the ground. Further examination determined that an axle, connecting the main landing gear (MLG) leg to the centre steel frame of the aeroplane, had been installed incorrectly. Other S12 aeroplanes may also be affected by this installation error. This condition, if not detected and corrected, could lead to damage to the aeroplane, possibly resulting in injury to occupants. To address this unsafe condition, Stemme issued the SB [service bulletin] to provide inspection instructions. For the reason described above, this [EASA] AD requires a one-time inspection of the MLG installation and, depending on findings, the accomplishment of applicable corrective action(s). lotter on DSK11XQN23PROD with RULES1 You may examine the MCAI in the AD docket at https:// www.regulations.gov by searching for and locating Docket No. FAA–2021– 0842. Discussion of Final Airworthiness Directive Comments The FAA received no comments on the NPRM or on the determination of the costs. VerDate Sep<11>2014 16:03 Jan 19, 2022 Jkt 256001 Conclusion This product has been approved by the aviation authority of another country and is approved for operation in the United States. Pursuant to the FAA’s bilateral agreement with this State of Design Authority, it has notified the FAA of the unsafe condition described in the MCAI referenced above. The FAA reviewed the relevant data and determined that air safety requires adopting this AD as proposed. Accordingly, the FAA is issuing this AD to address the unsafe condition on these products. This AD is adopted as proposed in the NPRM. Related Service Information Under 1 CFR Part 51 The FAA reviewed Stemme Service Bulletin No. P062–980037, Revision 00, dated June 5, 2019 (SB P062–980037). The service information specifies inspecting and repairing, if necessary, the MLG leg connection to the center steel frame. 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 ADDRESSES. Differences Between This AD and the Service Information SB P062–980037 allows the pilot/ owner to perform the initial inspection for correct installation, and this AD does not. SB P062–980037 specifies contacting Stemme AG for certain repair instructions, while this AD requires repair using a method approved by the FAA or EASA. Costs of Compliance The FAA estimates that this AD affects 11 gliders of U.S. registry. The FAA estimates that it would take 0.5 work hour per glider to inspect the MLG installation. The average labor rate is $85 per work hour. Based on these figures, the FAA estimates the cost to inspect the MLG installation on U.S. operators to be $467.50 or $42.50 per glider. In addition, the FAA estimates that further inspection for damage of an improperly installed MLG would take about 4 work-hours costing $340 per glider. If any damage is found during this MLG inspection, it may vary considerably from glider to glider, and the FAA has no way of estimating a repair cost. The FAA has included all known costs in its cost estimate. According to the manufacturer, however, some of the costs of this AD may be covered under warranty, thereby reducing the cost impact on affected operators. PO 00000 Frm 00007 Fmt 4700 Sfmt 4700 3031 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. The FAA is 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 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. For the reasons discussed above, I certify this AD. (1) Is not a ‘‘significant regulatory action’’ under Executive Order 12866, (2) Will not affect intrastate aviation in Alaska, and (3) 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. 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. E:\FR\FM\20JAR1.SGM 20JAR1 3032 § 39.13 Federal Register / Vol. 87, No. 13 / Thursday, January 20, 2022 / Rules and Regulations [Amended] 2. The FAA amends § 39.13 by adding the following new airworthiness directive: ■ 2021–26–12 Stemme AG: Amendment 39– 21871; Docket No. FAA–2021–0842; Project Identifier 2019–CE–032–AD. (a) Effective Date This airworthiness directive (AD) is effective February 24, 2022. (b) Affected ADs None. (c) Applicability This AD applies to Stemme AG Model Stemme S 12 gliders, serial numbers 12–002 through 12–026, inclusive, certificated in any category. (d) Subject Joint Aircraft System Component (JASC) Code 3200, Landing Gear System. (f) Compliance Comply with this AD within the compliance times specified, unless already done. lotter on DSK11XQN23PROD with RULES1 (g) Required Actions (1) Before further flight after the effective date of this AD, visually inspect the MLG left-hand and right-hand legs for proper installation as depicted in Figure 3 of Stemme Service Bulletin No. P062–980037, Revision 00, dated June 5, 2019 (SB P062– 980037). (2) If the MLG installation is not as depicted in Figure 3 of SB P062–980037, before further flight, inspect the MLG installation for damage in accordance with the Actions section, Action 2, in SB P062– 980037, except you are not required to contact Stemme if there is damage. Instead, repair any damage using a method approved by the FAA or the European Union Aviation Safety Agency (EASA). (h) Alternative Methods of Compliance (AMOCs) (1) The Manager, International Validation Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the certification office, send it to the attention of the person 16:03 Jan 19, 2022 Jkt 256001 Issued on December 9, 2021. Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2022–00968 Filed 1–19–22; 8:45 am] BILLING CODE 4910–13–P (i) Related Information (1) For more information about this AD, contact Jim Rutherford, Aviation Safety Engineer, General Aviation & Rotorcraft Section, International Validation Branch, FAA, 901 Locust, Room 301, Kansas City, MO 64106; phone: (816) 329–4165; fax: (816) 329–4090; email: jim.rutherford@faa.gov. (2) Refer to EASA AD 2019–0130–E, dated June 7, 2019, for more information. You may examine the EASA AD in the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA–2021–0842. (j) Material Incorporated by Reference (e) Unsafe Condition 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 incorrect installation of an axle connecting the main landing gear (MLG) to the center steel frame of the glider. The FAA is issuing this AD to prevent failure of the MLG. The unsafe condition, if not addressed, could result in damage to the glider and possible injury to occupants. VerDate Sep<11>2014 identified in paragraph (i)(1) of this AD and email to: 9-AVS-AIR-730-AMOC@faa.gov. (2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/ certificate holding district office. (1) The Director of the Federal Register approved the incorporation by reference 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) Stemme Service Bulletin No. P062– 980037, Revision 00, dated June 5, 2019. Note 1 to paragraph (j)(2)(i): This service information has Feb-29 and July 14, 2017, in the footer of the document. Feb-29 refers to the form number and July 14, 2017, is the revision date of the form used to write the service information. For enforceability purposes, the FAA will cite the Stemme AG service information using the release date of June 5, 2019, that is located in the footer on the bottom of page 1 and used in EASA AD 2019–0130–E, dated June 7, 2019. Note 2 to paragraph (j)(2)(i): This service information contains German to English translation. EASA used the English translation in referencing the document from Stemme AG. For enforceability purposes, the FAA will cite the Stemme AG service information in English as it appears on the document. (ii) [Reserved] (3) For service information identified in this AD, contact STEMME AG, Flugplatzstrasse F2, Nr. 6–7, D–15344 Strausberg, Germany; phone: +49 (0) 3341 3612–0; fax: +49 (0) 3341 3612–30; email: airworthiness@stemme.de; website: https:// www.stemme.com. (4) You may view this service information at FAA, Airworthiness Products Section, Operational Safety Branch, 901 Locust, Kansas City, MO 64106. For information on the availability of this material at the FAA, call (817) 222–5110. (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, email: fr.inspection@nara.gov, or go to: https://www.archives.gov/federal-register/cfr/ ibr-locations.html. PO 00000 Frm 00008 Fmt 4700 Sfmt 4700 DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2021–0878; Project Identifier MCAI–2020–01460–G; Amendment 39–21884; AD 2021–26–25] RIN 2120–AA64 Airworthiness Directives; SchemppHirth Flugzeugbau GmbH Gliders Federal Aviation Administration (FAA), DOT. ACTION: Final rule. AGENCY: The FAA is adopting a new airworthiness directive (AD) for certain Schempp-Hirth Flugzeugbau GmbH Model Duo Discus and Duo Discus T gliders. 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 jerky extension of the air brakes at very high air speeds, including cases where the air brake blades interlock. This AD requires replacing certain air brake end stop bushings, inspecting certain other air brake end stops, and repairing if necessary. The FAA is issuing this AD to address the unsafe condition on these products. DATES: This AD is effective February 24, 2022. The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD as of February 24, 2022. ADDRESSES: For service information identified in this final rule, contact Schempp-Hirth Flugzeugbau GmbH, Krebenstrasse 25, 73230 Kirchheim/ Teck, Germany; phone: +49 7021 7298– 0; fax: +49 7021 7298–199; email: info@ schempp-hirth.com; website: https:// www.schempp-hirth.com. You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 901 Locust, Kansas City, MO 64106. For information on the availability of this material at the FAA, call (817) 222–5110. It is also available at https://www.regulations.gov by searching for and locating Docket No. FAA–2021–0878. SUMMARY: E:\FR\FM\20JAR1.SGM 20JAR1

Agencies

[Federal Register Volume 87, Number 13 (Thursday, January 20, 2022)]
[Rules and Regulations]
[Pages 3030-3032]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2022-00968]


-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2021-0842; Project Identifier 2019-CE-032-AD; Amendment 
39-21871; AD 2021-26-12]
RIN 2120-AA64


Airworthiness Directives; Stemme AG Gliders

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for 
certain Stemme AG Model Stemme S 12 gliders. 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 the incorrect installation of an axle connecting the main 
landing gear (MLG) to the center steel frame. This AD requires 
inspecting the MLG installation and repairing if necessary. The FAA is 
issuing this AD to address the unsafe condition on these products.

DATES: This AD is effective February 24, 2022.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of February 24, 
2022.

ADDRESSES: For service information identified in this final rule, 
contact STEMME AG, Flugplatzstrasse F2, Nr. 6-7, D-15344 Strausberg, 
Germany; phone: +49 (0) 3341 3612-0; fax: +49 (0) 3341 3612-30; email: 
[email protected]; website: https://www.stemme.com. You may view 
this service information at the FAA, Airworthiness Products Section, 
Operational Safety Branch, 901 Locust, Kansas City, MO 64106. For 
information on the availability of this material at the FAA, call (817) 
222-5110. It is also available at https://www.regulations.gov by 
searching for and locating Docket No. FAA-2021-0842.

Examining the AD Docket

    You may examine the AD docket at https://www.regulations.gov by 
searching for and locating Docket No. FAA-2021-0842; 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 
MCAI, any comments received, and other information. The

[[Page 3031]]

address for Docket Operations is 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, Aviation Safety 
Engineer, General Aviation & Rotorcraft Section, International 
Validation Branch, FAA, 901 Locust, Room 301, Kansas City, MO 64106; 
phone: (816) 329-4165; fax: (816) 329-4090; email: 
[email protected].

SUPPLEMENTARY INFORMATION:

Background

    The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 
CFR part 39 by adding an AD that would apply to certain serial-numbered 
Stemme AG Model Stemme S 12 gliders. The NPRM published in the Federal 
Register on October 8, 2021 (86 FR 56225). The NPRM was prompted by 
MCAI originated by the European Union Aviation Safety Agency (EASA), 
which is the Technical Agent for the Member States of the European 
Union. EASA issued AD 2019-0130-E, dated June 7, 2019 (referred to 
after this as ``the MCAI''), to address an unsafe condition on Stemme 
AG Model Stemme S 12 gliders. The MCAI states:

    Following a production acceptance flight, the pilot noticed that 
the aeroplane was in a banked position on the ground. Further 
examination determined that an axle, connecting the main landing 
gear (MLG) leg to the centre steel frame of the aeroplane, had been 
installed incorrectly. Other S12 aeroplanes may also be affected by 
this installation error.
    This condition, if not detected and corrected, could lead to 
damage to the aeroplane, possibly resulting in injury to occupants.
    To address this unsafe condition, Stemme issued the SB [service 
bulletin] to provide inspection instructions.
    For the reason described above, this [EASA] AD requires a one-
time inspection of the MLG installation and, depending on findings, 
the accomplishment of applicable corrective action(s).

    You may examine the MCAI in the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA-2021-
0842.

Discussion of Final Airworthiness Directive

Comments

    The FAA received no comments on the NPRM or on the determination of 
the costs.

Conclusion

    This product has been approved by the aviation authority of another 
country and is approved for operation in the United States. Pursuant to 
the FAA's bilateral agreement with this State of Design Authority, it 
has notified the FAA of the unsafe condition described in the MCAI 
referenced above. The FAA reviewed the relevant data and determined 
that air safety requires adopting this AD as proposed. Accordingly, the 
FAA is issuing this AD to address the unsafe condition on these 
products. This AD is adopted as proposed in the NPRM.

Related Service Information Under 1 CFR Part 51

    The FAA reviewed Stemme Service Bulletin No. P062-980037, Revision 
00, dated June 5, 2019 (SB P062-980037). The service information 
specifies inspecting and repairing, if necessary, the MLG leg 
connection to the center steel frame. 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 
ADDRESSES.

Differences Between This AD and the Service Information

    SB P062-980037 allows the pilot/owner to perform the initial 
inspection for correct installation, and this AD does not. SB P062-
980037 specifies contacting Stemme AG for certain repair instructions, 
while this AD requires repair using a method approved by the FAA or 
EASA.

Costs of Compliance

    The FAA estimates that this AD affects 11 gliders of U.S. registry. 
The FAA estimates that it would take 0.5 work hour per glider to 
inspect the MLG installation. The average labor rate is $85 per work 
hour. Based on these figures, the FAA estimates the cost to inspect the 
MLG installation on U.S. operators to be $467.50 or $42.50 per glider.
    In addition, the FAA estimates that further inspection for damage 
of an improperly installed MLG would take about 4 work-hours costing 
$340 per glider. If any damage is found during this MLG inspection, it 
may vary considerably from glider to glider, and the FAA has no way of 
estimating a repair cost.
    The FAA has included all known costs in its cost estimate. 
According to the manufacturer, however, some of the costs of this AD 
may be covered under warranty, thereby reducing the cost impact on 
affected operators.

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.
    The FAA is 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

    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. For the reasons discussed above, I certify this AD.
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Will not affect intrastate aviation in Alaska, and
    (3) 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.

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.

[[Page 3032]]

Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive:

2021-26-12 Stemme AG: Amendment 39-21871; Docket No. FAA-2021-0842; 
Project Identifier 2019-CE-032-AD.

(a) Effective Date

    This airworthiness directive (AD) is effective February 24, 
2022.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Stemme AG Model Stemme S 12 gliders, serial 
numbers 12-002 through 12-026, inclusive, certificated in any 
category.

(d) Subject

    Joint Aircraft System Component (JASC) Code 3200, Landing Gear 
System.

(e) Unsafe Condition

    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 incorrect 
installation of an axle connecting the main landing gear (MLG) to 
the center steel frame of the glider. The FAA is issuing this AD to 
prevent failure of the MLG. The unsafe condition, if not addressed, 
could result in damage to the glider and possible injury to 
occupants.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Required Actions

    (1) Before further flight after the effective date of this AD, 
visually inspect the MLG left-hand and right-hand legs for proper 
installation as depicted in Figure 3 of Stemme Service Bulletin No. 
P062-980037, Revision 00, dated June 5, 2019 (SB P062-980037).
    (2) If the MLG installation is not as depicted in Figure 3 of SB 
P062-980037, before further flight, inspect the MLG installation for 
damage in accordance with the Actions section, Action 2, in SB P062-
980037, except you are not required to contact Stemme if there is 
damage. Instead, repair any damage using a method approved by the 
FAA or the European Union Aviation Safety Agency (EASA).

(h) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, International Validation Branch, FAA, has the 
authority to approve AMOCs for this AD, if requested using the 
procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, 
send your request to your principal inspector or local Flight 
Standards District Office, as appropriate. If sending information 
directly to the manager of the certification office, send it to the 
attention of the person identified in paragraph (i)(1) of this AD 
and email to: [email protected].
    (2) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the local flight standards district office/certificate holding 
district office.

(i) Related Information

    (1) For more information about this AD, contact Jim Rutherford, 
Aviation Safety Engineer, General Aviation & Rotorcraft Section, 
International Validation Branch, FAA, 901 Locust, Room 301, Kansas 
City, MO 64106; phone: (816) 329-4165; fax: (816) 329-4090; email: 
[email protected].
    (2) Refer to EASA AD 2019-0130-E, dated June 7, 2019, for more 
information. You may examine the EASA AD in the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA-
2021-0842.

(j) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference 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) Stemme Service Bulletin No. P062-980037, Revision 00, dated 
June 5, 2019.
    Note 1 to paragraph (j)(2)(i): This service information has Feb-
29 and July 14, 2017, in the footer of the document. Feb-29 refers 
to the form number and July 14, 2017, is the revision date of the 
form used to write the service information. For enforceability 
purposes, the FAA will cite the Stemme AG service information using 
the release date of June 5, 2019, that is located in the footer on 
the bottom of page 1 and used in EASA AD 2019-0130-E, dated June 7, 
2019.
    Note 2 to paragraph (j)(2)(i): This service information contains 
German to English translation. EASA used the English translation in 
referencing the document from Stemme AG. For enforceability 
purposes, the FAA will cite the Stemme AG service information in 
English as it appears on the document.
    (ii) [Reserved]
    (3) For service information identified in this AD, contact 
STEMME AG, Flugplatzstrasse F2, Nr. 6-7, D-15344 Strausberg, 
Germany; phone: +49 (0) 3341 3612-0; fax: +49 (0) 3341 3612-30; 
email: [email protected]; website: https://www.stemme.com.
    (4) You may view this service information at FAA, Airworthiness 
Products Section, Operational Safety Branch, 901 Locust, Kansas 
City, MO 64106. For information on the availability of this material 
at the FAA, call (817) 222-5110.
    (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, email: [email protected], or go to: https://www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued on December 9, 2021.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification 
Service.
[FR Doc. 2022-00968 Filed 1-19-22; 8:45 am]
BILLING CODE 4910-13-P