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. 

(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: 9- 

ASO-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 

of the local flight standards district office/ 

certificate holding district office. 

(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 

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: 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. 

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 


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Federal Register / Vol. 87, No. 13 / Thursday, January 20, 2022 / Rules and Regulations 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: jim.rutherford@

faa.gov. 

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 

■ 1. The authority citation for part 39 

continues to read as follows: 

Authority: 49 U.S.C. 106(g), 40113, 44701. 


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3032 Federal Register / Vol. 87, No. 13 / Thursday, January 20, 2022 / Rules and Regulations 

§ 39.13 [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. 

(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: 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. 

(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 

(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. 

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 

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 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: 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. 


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