Federal Register / Vol. 86, No. 164 / Friday, August 27, 2021 / Proposed Rules 48065 

reduces comment processing and 

posting time. 

Confidential Business Information. 

Pursuant to 10 CFR 1004.11, any person 

submitting information that he or she 

believes to be confidential and exempt 

by law from public disclosure should 

submit via email two well-marked 

copies: One copy of the document 

marked ‘‘confidential’’ including all the 

information believed to be confidential, 

and one copy of the document marked 

‘‘non-confidential’’ with the information 

believed to be confidential deleted. DOE 

will make its own determination about 

the confidential status of the 

information and treat it according to its 

determination. 

It is DOE’s policy that all comments 

may be included in the public docket, 

without change and as received, 

including any personal information 

provided in the comments (except 

information deemed to be exempt from 

public disclosure). 

V. Approval of the Office of the 

Secretary 

The Secretary of Energy has approved 

publication of this notification of a 

webinar and availability of preliminary 

technical support document. 

Signing Authority 

This document of the Department of 

Energy was signed on August 20, 2021, 

by Kelly Speakes-Backman, Principal 

Deputy Assistant Secretary and Acting 

Assistant Secretary for Energy Efficiency 

and Renewable Energy, pursuant to 

delegated authority from the Secretary 

of Energy. That document with the 

original signature and date is 

maintained by DOE. For administrative 

purposes only, and in compliance with 

requirements of the Office of the Federal 

Register, the undersigned DOE Federal 

Register Liaison Officer has been 

authorized to sign and submit the 

document in electronic format for 

publication, as an official document of 

the Department of Energy. This 

administrative process in no way alters 

the legal effect of this document upon 

publication in the Federal Register. 

Signed in Washington, DC, on August 20, 

2021. 

Treena V. Garrett, 

Federal Register Liaison Officer, U.S. 

Department of Energy. 

[FR Doc. 2021–18351 Filed 8–26–21; 8:45 am] 

BILLING CODE 6450–01–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0716; Project 

Identifier 2019–CE–023–AD] 

RIN 2120–AA64 

Airworthiness Directives; Stemme AG 

Gliders 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for all 

Stemme AG Model Stemme S 12 gliders. 

This proposed 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 an 

airspeed indicator (ASI) with speed 

markings inconsistent with the 

approved and published values. This 

proposed AD would require inspecting 

the ASI markings and, depending on 

findings, either replacing the ASI or 

amending the existing aircraft flight 

manual (AFM) until the ASI is replaced. 

The FAA is proposing this AD to 

address the unsafe condition on these 

products. 

DATES: The FAA must receive comments 

on this proposed AD by October 12, 

2021. 

ADDRESSES: You may send comments, 

using the procedures found in 14 CFR 

11.43 and 11.45, by any of the following 

methods: 

• Federal eRulemaking Portal: Go to 

https://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: (202) 493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE, 

Washington, DC 20590. 

• Hand Delivery: Deliver to Mail 

address above between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For service information identified in 

this NPRM, 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 (816) 329–4148. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0716; 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 

NPRM, the MCAI, any comments 

received, and other information. The 

street address for Docket Operations is 

listed above. 

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: 

Comments Invited 

The FAA invites you to send any 

written relevant data, views, or 

arguments about this proposal. Send 

your comments to an address listed 

under ADDRESSES. Include ‘‘Docket No. 

FAA–2021–0716; Project Identifier 

2019–CE–023–AD’’ at the beginning of 

your comments. The most helpful 

comments reference a specific portion of 

the proposal, explain the reason for any 

recommended change, and include 

supporting data. The FAA will consider 

all comments received by the closing 

date and may amend this proposal 

because of those comments. 

Except for Confidential Business 

Information (CBI) as described in the 

following paragraph, and other 

information as described in 14 CFR 

11.35, the FAA will post all comments 

received, without change, to https://

www.regulations.gov, including any 

personal information you provide. The 

agency will also post a report 

summarizing each substantive verbal 

contact received about this NPRM. 

Confidential Business Information 

CBI is commercial or financial 

information that is both customarily and 

actually treated as private by its owner. 

Under the Freedom of Information Act 

(FOIA) (5 U.S.C. 552), CBI is exempt 

from public disclosure. If your 

comments responsive to this NPRM 

contain commercial or financial 

information that is customarily treated 

as private, that you actually treat as 

private, and that is relevant or 

responsive to this NPRM, it is important 

that you clearly designate the submitted 


lotter on DSK11XQN23PROD with PROPOSALS1
48066 Federal Register / Vol. 86, No. 164 / Friday, August 27, 2021 / Proposed Rules 

comments as CBI. Please mark each 

page of your submission containing CBI 

as ‘‘PROPIN.’’ The FAA will treat such 

marked submissions as confidential 

under the FOIA, and they will not be 

placed in the public docket of this 

NPRM. Submissions containing CBI 

should be sent to Jim Rutherford, 

Aviation Safety Engineer, General 

Aviation & Rotorcraft Section, 

International Validation Branch, FAA, 

901 Locust, Room 301, Kansas City, MO 

64106. Any commentary that the FAA 

receives which is not specifically 

designated as CBI will be placed in the 

public docket for this rulemaking. 

Background 

The European Union Aviation Safety 

Agency (EASA), which is the Technical 

Agent for the Member States of the 

European Union, has issued EASA AD 

2019–0082, dated April 12, 2019 

(referred to after this as ‘‘the MCAI’’), to 

address an unsafe condition on Stemme 

AG Model Stemme S 12 gliders. The 

MCAI states: 

During a production inspection of a new 

powered sailplane, an ASI was found with 

speed markings inconsistent with the 

approved and published values (begin[ning] 

of the white and green arc). Subsequent 

investigation of the production records for 

delivered Stemme S 12 powered sailplanes 

does not exclude that a similar, nonconforming ASI was installed during 

production. 

This condition, if not corrected, could lead 

to erroneous information being provided to 

the pilot, particularly at the lower speed 

operation limits, possibly resulting in 

reduced control of the powered sailplane. 

To address this unsafe condition, Stemme 

AG issued the SB [service bulletin] to 

provide inspections instructions. 

For the reason described above, this 

[EASA] AD requires a one-time inspection of 

the markings of the affected part and, 

depending on findings, amending the 

Aircraft Flight Manual (AFM) and replacing 

the affected part. This [EASA] AD also 

prohibits installation of affected parts. 

You may examine the MCAI in the 

AD docket at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2021– 

0716. 

Related Service Information Under 1 

CFR Part 51 

The FAA reviewed Stemme Service 

Bulletin No. P062–980027, Revision 00, 

dated December 17, 2018. The service 

information specifies checking the ASI 

markings and provides illustrations of 

correct markings. The service 

information specifies the procedure to 

replace an affected ASI with an ASI 

with correct markings. The service 

information also includes a temporary 

page to insert into the AFM until the 

ASI is replaced. 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. 

FAA’s Determination 

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 and service information 

referenced above. The FAA is issuing 

this NPRM after determining the unsafe 

condition described previously is likely 

to exist or develop on other products of 

the same type design. 

Proposed AD Requirements in This 

NPRM 

This proposed AD would require a 

one-time inspection of the ASI markings 

and, depending on findings, either 

replacing the ASI before further flight or 

amending the existing AFM until the 

ASI is replaced within 3 months. 

Costs of Compliance 

The FAA estimates that this AD, if 

adopted as proposed, would affect 20 

gliders of U.S. registry. The FAA 

estimates that it would take about 0.5 

work-hour per glider to comply with the 

inspection requirements of this AD. The 

average labor rate is $85 per work-hour. 

Based on these figures, the FAA 

estimates the cost of this AD on U.S. 

operators to be $850 or $42.50 per 

glider. 

The FAA estimates that amending the 

AFM to insert and then remove the 

temporary page as a result of the 

inspection would take about 1 workhour per glider for a total cost of $85 per 

glider. The FAA estimates that replacing 

the ASI would take about 3.5 workhours and require parts costing $603, for 

a total cost of $900.50 per glider. The 

FAA has no way of determining the 

number of gliders that may need these 

actions. 

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 

The FAA determined that this 

proposed AD would not have federalism 

implications under Executive Order 

13132. This proposed AD would 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 proposed regulation: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Would not affect intrastate 

aviation in Alaska, and 

(3) Would 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 Proposed Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA proposes to amend 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. 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive: 

Stemme AG: Docket No. FAA–2021–0716; 

Project Identifier 2019–CE–023–AD. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by October 12, 

2021. 


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Federal Register / Vol. 86, No. 164 / Friday, August 27, 2021 / Proposed Rules 48067 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Stemme AG Model 

Stemme S 12 gliders, all serial numbers, 

certificated in any category. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 3414, Airspeed/Mach Indicator. 

(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 an airspeed 

indicator (ASI) with speed markings 

inconsistent with the approved and 

published values (beginning of the white and 

green arc). The FAA is issuing this AD to 

prevent erroneous information being 

provided to the pilot, particularly at the 

lower speed operation limits. The unsafe 

condition, if not addressed, could result in 

reduced control of the glider. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

(1) Within 30 days after the effective date 

of this AD, inspect ASI part number (P/N) IF– 

W230 or IF–W190 for incorrect markings in 

accordance with the table in the Appendix, 

‘‘2.3. Airspeed Indicator Markings,’’ of 

Stemme Service Bulletin No. P062–980027, 

Revision 00, dated December 17, 2018 (the 

SB). If an ASI marking is incorrect, before 

further flight, perform one of the following: 

(i) Replace the ASI by following the 

Actions, Action 2, of the SB; or 

(ii) Amend the existing aircraft flight 

manual (AFM) for your glider by inserting 

the Appendix, temporary page 2–3 SB, ‘‘2.3. 

Airspeed Indicator Markings,’’ of the SB. 

Within 3 months after amending the AFM, 

replace the ASI by following the Actions, 

Action 2, of the SB and remove temporary 

page 2–3 SB, ‘‘2.3. Airspeed Indicator 

Markings,’’ from the AFM. 

(2) As of the effective date of this AD, do 

not install ASI P/N IF–W230 or IF–W190 on 

any glider unless it has passed the inspection 

required by this AD. 

(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 Related Information or email: 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 European Union Aviation 

Safety Agency (EASA) AD 2019–0082, dated 

April 12, 2019, for more information. You 

may examine the EASA AD in the AD docket 

at https://www.regulations.gov by searching 

for and locating it in Docket No. FAA–2021– 

0716. 

(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. You may view this 

referenced 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 (816) 329–4148. 

Issued on August 20, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–18387 Filed 8–26–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0714; Project 

Identifier 2019–CE–016–AD] 

RIN 2120–AA64 

Airworthiness Directives; ASI Aviation 

(Type Certificate Previously Held by 

Reims Aviation S.A.) Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for all 

ASI Aviation (type certificate previously 

held by Reims Aviation S.A.) Model 

F406 airplanes. This proposed 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 failure of a circuit breaker 

(CB) switch. This proposed AD would 

require replacing certain CB switches 

and establishing a life limit for the CB 

switches. The FAA is proposing this AD 

to address the unsafe condition on these 

products. 

DATES: The FAA must receive comments 

on this proposed AD by October 12, 

2021. 

ADDRESSES: You may send comments, 

using the procedures found in 14 CFR 

11.43 and 11.45, by any of the following 

methods: 

• Federal eRulemaking Portal: Go to 

https://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: (202) 493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12 140, 1200 New Jersey Avenue SE, 

Washington, DC 20590. 

• Hand Delivery: Deliver to Mail 

address above between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For service information identified in 

this NPRM, contact ASI Aviation, 

Ae ́rodrome de Reims Prunay, 51360 

Prunay, France; telephone: +33 3 26 48 

46 84; fax: +33 3 26 49 18 57; email: 

contact@asi-aviation.fr; website: https:// 

asi-aviation.fr/page-Accueil.html. You 

may view this service information at the 

Airworthiness Products Section, 

Operational Safety Branch, 901 Locust, 

Kansas City, MO 64106. For information 

on the availability of this material at the 

FAA, call (816) 329–4148. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0714; 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 

NPRM, the MCAI, any comments 

received, and other information. The 

street address for Docket Operations is 

listed above. 

FOR FURTHER INFORMATION CONTACT: 

Gregory Johnson, Aviation Safety 

Engineer, AIR–732 International 

Validation Section FAA, 901 Locust, 

Room 301, Kansas City, MO 64106– 

2641; phone: (720) 626–5462; email: 

gregory.johnson@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

The FAA invites you to send any 

written relevant data, views, or 

arguments about this proposal. Send 

your comments to an address listed 

under ADDRESSES. Include ‘‘Docket No. 

FAA–2021–0714; Project Identifier 

2019–CE–016–AD’’ at the beginning of 

your comments. The most helpful 

comments reference a specific portion of 


lotter on DSK11XQN23PROD with PROPOSALS1