Airworthiness Directives; Stemme AG Gliders, 46938-46940 [2017-21226]

Download as PDF 46938 Federal Register / Vol. 82, No. 194 / Tuesday, October 10, 2017 / Proposed Rules Pmangrum on DSK3GDR082PROD with PROPOSALS After publication of the ANPRM, the Commission considered these issues in new factual contexts. See, e.g., Advisory Opinion Request 2013–18 (Revolution Messaging) (asking whether ‘‘banner ads’’ viewed on mobile phones, either in Web site or app, required disclaimers); MUR 6911 (Frankel) (considering whether candidates’ and political parties’ Twitter profiles and individual tweets required disclaimers).5 Also, after the ANPRM was published, at least one additional state joined California in adopting regulations to address small internet advertisements.6 In light of these and other legal and technological developments, the Commission reopened the comment period on October 18, 2016, seeking comments addressing persons’ experiences in complying with (and receiving disclosure from) these state rules as well as other disclosure regimes.7 The Commission sought comments that addressed: • How campaigns, parties, and other political committees, voters, and others disseminate and receive electoral information via the internet and other technologies, including any data or experiences in purchasing, selling, or distributing small or character-limited advertisements on Web sites, apps, and mobile devices; • any challenges in complying with the existing disclaimer rules as applied to internet communications; • the technological or other characteristics that might define a ‘‘small’’ internet advertisement; • how a disclaimer requirement or exception for ‘‘small’’ internet advertisements might be implemented; • the informational benefits of disclaimers on internet communications to assist voters in identifying the source of advertising so they are better ‘‘able to evaluate the arguments to which they are being subjected’’; 8 • the informational benefits of disclaimers on internet communications, including Web sites and social media pages, to avoid voter confusion and reduce the incidence of solicitations that appear to be for 5 Documents related to Commission enforcement matters under review (MURs) are available on the Commission’s Web site. 6 See Electronic Media, Requirements, Md. Code Regs. 33.13.07.02(D)(2)(b). 7 See Internet Communication Disclaimers; Reopening of Comment Period and Notice of Hearing, 81 FR 71647 (Oct. 18, 2016). In the document, the Commission also indicated it would hold a hearing on February 1, 2017. However, because few commenters expressed interest in the hearing, the Commission postponed it. 8 Citizens United v. FEC, 558 U.S. 310, 368 (2010) (quoting First Nat’l Bank of Boston v. Bellotti, 435 U.S. 765, 792 n.32 (1978)). VerDate Sep<11>2014 14:57 Oct 06, 2017 Jkt 244001 candidates but are actually for noncandidate committees; and • the extent to which the Commission’s consideration of disclaimer requirements should take into account current or anticipated models of internet advertising. The Commission received six comments during the reopened comment period, all but one of which supported updating the disclaimer rules. Commenters, however, differed on whether the Commission should adopt technological modifications to disclaimer requirements for all online advertisements or exempt paid advertisements on social media platforms from the disclaimer requirements. Since the close of the latest comment period, the Commission has again considered disclaimer requirements as applied to online communications by American citizens.9 In light of recent developments since the close of the latest comment period, the Commission is interested in receiving further comments on whether and how to revise its rules regarding disclaimers on certain internet communications. The Commission seeks additional comments addressing the bullet points above and any issues discussed in the ANPRM; the Commission is particularly interested in comments addressing advertisements on internet-enabled applications and devices (such as apps, eReaders, and wearable technology). Given the speed at which technological advances are developing, the Commission welcomes comments that address possible regulatory approaches that might minimize the need for serial revisions to the Commission’s rules in order to adapt to new or emerging technologies. Dated: October 3, 2017. On behalf of the Commission. Steven T. Walther, Chairman, Federal Election Commission. [FR Doc. 2017–21706 Filed 10–6–17; 8:45 am] BILLING CODE 6715–01–P 9 See, e.g., Advisory Opinion 2017–05 (Great America PAC et al.) (concerning whether committees’ Twitter profile pages require disclaimers and how committees may use Twitter handles in disclaimers). PO 00000 Frm 00002 Fmt 4702 Sfmt 4702 DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2017–0952; Product Identifier 2017–CE–028–AD] RIN 2120–AA64 Airworthiness Directives; Stemme AG Gliders Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Notice of proposed rulemaking (NPRM). AGENCY: We propose to supersede Airworthiness Directive (AD) 2017–10– 11 for Stemme AG Model Stemme S10– VT gliders (type certificate previously held by Stemme GmbH & Co. KG). This proposed 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 certain propeller front transmission gear wheels having insufficient material strength because of improper heat treatment during manufacturing. We are issuing this proposed AD to require actions to address the unsafe condition on these products and to add Stemme AG Model Stemme S 12 to the applicability. DATES: We must receive comments on this proposed AD by November 24, 2017. SUMMARY: You may send comments 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: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE., Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this proposed AD, contact STEMME AG, Flugplatzstrasse F2, Nr. 6–7, D–15344 Strausberg, Germany; telephone: +49 (0) 3341 3612–0, fax: +49 (0) 3341 3612–30; Internet: https://www.stemme.com. You may review copies of the referenced service information at the FAA, Policy and Innovation Division, 901 Locust, ADDRESSES: E:\FR\FM\10OCP1.SGM 10OCP1 Federal Register / Vol. 82, No. 194 / Tuesday, October 10, 2017 / Proposed Rules Kansas City, Missouri 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 on the Internet at https:// www.regulations.gov by searching for and locating Docket No. FAA–2017– 0952; or in person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this proposed AD, the regulatory evaluation, any comments received, and other information. The street address for the Docket Office (telephone (800) 647–5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Jim Rutherford, Aerospace Engineer, FAA, Small Airplane Standards Branch, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329– 4165; fax: (816) 329–4090; email: jim.rutherford@faa.gov. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any written relevant data, views, or arguments about this proposed AD. Send your comments to an address listed under the ADDRESSES section. Include ‘‘Docket No. FAA–2017–0952; Product Identifier 2017–CE–028–AD’’ at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this proposed AD. We will consider all comments received by the closing date and may amend this proposed AD because of those comments. We will post all comments we receive, without change, to https:// regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this proposed AD. Pmangrum on DSK3GDR082PROD with PROPOSALS Discussion We issued AD 2017–10–11, Amendment 39–18885 (82 FR 24239, May 26, 2017) (‘‘AD 2017–10–11’’) to address an unsafe condition on all Stemme AG Model Stemme S10–VT gliders (type certificate previously held by Stemme GmbH & Co. KG) equipped with a certain front gearbox, part number 11AG, and was based on mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country. VerDate Sep<11>2014 14:57 Oct 06, 2017 Jkt 244001 Since we issued AD 2017–10–11, we have type certificated Stemme AG Model Stemme S 12 gliders in the United States and have determined those model gliders should also be included in the applicability of AD 2017–10–11. In addition, Stemme AG has issued new service information with procedures for addressing the unsafe condition. Related Service Information Under 1 CFR Part 51 Stemme AG has issued STEMME Service Bulletin Dok. Nr.: P062–980010, Issue: 01, dated June 14, 2017, and STEMME Procedural Specification Dok. Nr.: P320–900060, dated June 14, 2017. In combination, the service information describes procedures for replacing the front gearbox. 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 the ADDRESSES section of this NPRM. FAA’s Determination and Requirements of the Proposed AD This product has been approved by the aviation authority of another country, and is approved for operation in the United States. Pursuant to our bilateral agreement with this State of Design Authority, they have notified us of the unsafe condition described in the MCAI and service information referenced above. We are proposing this AD because we evaluated all information and determined the unsafe condition exists and is likely to exist or develop on other products of the same type design. Differences Between This Proposed AD and the Service Information The service information for this proposed AD allows the owner/operator to do certain maintenance tasks. Also, the service information specifies certain maintenance tasks be done by Stemme AG. However, for this proposed AD, we do not allow the owner/operator to do any maintenance tasks; all maintenance tasks must be done by an appropriately certified mechanic or maintenance shop. In addition, we do not require any maintenance tasks be done specifically by Stemme AG; any appropriately certified mechanic or maintenance shop may do the tasks required by this proposed AD. Costs of Compliance According to the U.S. registry, we have a total of 51 of both glider types registered, but there are still only 14 serial numbers of the part number 11AG front gearbox. Therefore, the most PO 00000 Frm 00003 Fmt 4702 Sfmt 4702 46939 gliders that could be affected remains 14. According to Stemme AG, there are a total of 4 of the affected front gearboxes on both glider types of U.S. registry (2 for each model). It will take an estimated 19 workhours per product to comply with the basic requirements of this proposed AD. The average labor rate is $85 per workhour. Required parts would cost about $2,000 per product. Based on these figures, if we consider the costs for all 14 affected gearboxes, then we estimate the cost of the proposed AD on U.S. operators to be $50,610, or $3,615 per product. 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. We are 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. This AD is issued in accordance with authority delegated by the Executive Director, Aircraft Certification Service, as authorized by FAA Order 8000.51C. In accordance with that order, issuance of ADs is normally a function of the Compliance and Airworthiness Division, but during this transition period, the Executive Director has delegated the authority to issue ADs applicable to small airplanes, gliders, and domestic business jet transport airplanes to the Director of the Policy and Innovation Division. Regulatory Findings We 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: E:\FR\FM\10OCP1.SGM 10OCP1 46940 Federal Register / Vol. 82, No. 194 / Tuesday, October 10, 2017 / Proposed Rules (1) Is not a ‘‘significant regulatory action’’ under Executive Order 12866, (2) Is not a ‘‘significant rule’’ under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska, and (4) 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 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 removing Amendment 39–18885 (82 FR 24239, May 26, 2017), and adding the following new AD: ■ Stemme AG: Docket No. FAA–2017–0952; Product Identifier 2017–CE–028–AD. (a) Comments Due Date We must receive comments by November 24, 2017. Pmangrum on DSK3GDR082PROD with PROPOSALS (b) Affected ADs This AD replaces AD 2017–10–11, Amendment 39–18885 (82 FR 24239, May 26, 2017) (‘‘AD 2017–10–11’’). (c) Applicability This AD applies to Stemme AG Model Stemme S10–VT gliders (type certificate previously held by Stemme GmbH & Co. KG), all serial numbers, and Stemme AG Model Stemme S 12 gliders, all serial numbers, that are: (1) Equipped with a front gearbox, part number (P/N) 11AG, with a serial number listed in table 1 to paragraph (c) of this AD; and (2) are certificated in any category. Table 1 to paragraph (c) of this AD— Affected P/N 11AG (front gearbox) S/Ns 80058/0814, 80059/0915, 80060/0915, 80061/ 1115, 80062/1215, 80063/0116, 80064/0416, 80065/0616, 80066/0716, 80067/0916, 80068/ 1016, 80069/0117, 80070/0217, 80071/0217. Note 1 to paragraph (c) of this AD: Page 2 of Stemme AG Service Bulletin No. P062– 980010, dated April 21, 2017, provides a pictorial of where the serial number of the affected gearboxes are located. VerDate Sep<11>2014 14:57 Oct 06, 2017 Jkt 244001 (d) Subject Air Transport Association of America (ATA) Code 61: Propellers/Propulsors. (e) Reason 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 certain propeller front transmission gear wheels having insufficient material strength because of improper heat treatment during manufacturing. We are issuing this proposed AD to add Stemme AG Model Stemme S 12 to the applicability, paragraph (c), of this AD, and to prevent failure of the propeller front transmission gear wheels. This failure could cause loss of power between the engine and the propeller, which could result in reduced control. (f) Actions and Compliance Unless already done, do the following actions: (1) For Model Stemme S10–VT gliders: Before further flight after June 15, 2017 (the effective date of AD 2017–10–11), replace the front gearbox following STEMME Procedural Specification Dok. Nr.: P320–900060, dated June 14, 2017, as specified in STEMME Service Bulletin Dok. Nr.: P062–980010, Issue: 01, dated June 14, 2017. (2) For Model Stemme S 12 gliders: Before further flight after the effective date of this AD, replace the front gearbox following STEMME Procedural Specification Dok. Nr.: P320–900060, dated June 14, 2017, as specified in STEMME Service Bulletin Dok. Nr.: P062–980010, Issue: 01, dated June 14, 2017. (3) As of the effective date of this AD, do not install a front gear box listed in table 1 of paragraph (c) of this AD. (4) The service information for this AD allows the owner/operator to do certain maintenance tasks. Also, the service information specifies certain maintenance tasks be done by Stemme AG. However, for this AD, we do not allow the owner/operator to do any maintenance tasks; all maintenance tasks must be done by an appropriately certifiedmechanic or maintenance shop. In addition, we do not require any maintenance tasks be done specifically by Stemme AG; any appropriately certified mechanic or maintenance shop may do the tasks required by this AD. (g) Other FAA AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, Small Airplane Standards Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Send information to ATTN: Jim Rutherford, Aerospace Engineer, FAA, Small Airplane Standards Branch, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329–4165; fax: (816) 329–4090; email: jim.rutherford@faa.gov. (i) Before using any approved AMOC on any airplane to which the AMOC applies, PO 00000 Frm 00004 Fmt 4702 Sfmt 4702 notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. (ii) AMOCs approved for AD 2017–10–11, Amendment 39–18885 (82 FR 24239, May 26, 2017) are approved as AMOCs for the corresponding provisions of this AD. (2) Contacting the Manufacturer: For any requirement in this AD to obtain corrective actions from a manufacturer, the action must be accomplished using a method approved by the Manager, Small Airplane Standards Branch, FAA; or the European Aviation Safety Agency (EASA). (h) Related Information (1) Refer to MCAI European Aviation Safety Agency (EASA) AD No. 2017–0072–E, dated April 26, 2017, and Stemme AG Service Bulletin No. P062–980010, dated April 21, 2017, for related information. You may examine the MCAI on the Internet at https://www.regulations.gov by searching for and locating Docket No. FAA–2017–0952. For service information related to this AD, contact STEMME AG, Flugplatzstrasse F2, Nr. 6–7, D–15344 Strausberg, Germany; telephone: +49 (0) 3341 3612–0, fax: +49 (0) 3341 3612–30; Internet: https:// www.stemme.com. You may review copies of the referenced service information at the FAA, Policy and Innovation Division, 901 Locust, Kansas City, Missouri 64106. For information on the availability of this material at the FAA, call (816) 329–4148. Issued in Kansas City, Missouri, on September 26, 2017. Pat Mullen, Acting Deputy Director, Policy & Innovation Division, Aircraft Certification Service. [FR Doc. 2017–21226 Filed 10–6–17; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF ENERGY Federal Energy Regulatory Commission 18 CFR Part 35 [Docket No. RM18–1–000] Grid Resiliency Pricing Rule Federal Energy Regulatory Commission, Department of Energy. ACTION: Notice of proposed rulemaking. AGENCY: Pursuant to the Department of Energy Organization Act (DOE Act), the Secretary of Energy (Secretary) is proposing a rule for final action by the Federal Energy Regulatory Commission (Commission or FERC). The Secretary is proposing the Commission exercise its authority under the Federal Power Act (FPA) to establish just and reasonable rates for wholesale electricity sales. Under the proposal, the Commission will impose rules on Commissionapproved independent system operators SUMMARY: E:\FR\FM\10OCP1.SGM 10OCP1

Agencies

[Federal Register Volume 82, Number 194 (Tuesday, October 10, 2017)]
[Proposed Rules]
[Pages 46938-46940]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-21226]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-0952; Product Identifier 2017-CE-028-AD]
RIN 2120-AA64


Airworthiness Directives; Stemme AG Gliders

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to supersede Airworthiness Directive (AD) 2017-10-
11 for Stemme AG Model Stemme S10-VT gliders (type certificate 
previously held by Stemme GmbH & Co. KG). This proposed 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 certain propeller front transmission gear wheels having 
insufficient material strength because of improper heat treatment 
during manufacturing. We are issuing this proposed AD to require 
actions to address the unsafe condition on these products and to add 
Stemme AG Model Stemme S 12 to the applicability.

DATES: We must receive comments on this proposed AD by November 24, 
2017.

ADDRESSES: You may send comments 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: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC 20590, between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays.
    For service information identified in this proposed AD, contact 
STEMME AG, Flugplatzstrasse F2, Nr. 6-7, D-15344 Strausberg, Germany; 
telephone: +49 (0) 3341 3612-0, fax: +49 (0) 3341 3612-30; Internet: 
https://www.stemme.com. You may review copies of the referenced service 
information at the FAA, Policy and Innovation Division, 901 Locust,

[[Page 46939]]

Kansas City, Missouri 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 on the Internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2017-
0952; or in person at the Docket Management Facility between 9 a.m. and 
5 p.m., Monday through Friday, except Federal holidays. The AD docket 
contains this proposed AD, the regulatory evaluation, any comments 
received, and other information. The street address for the Docket 
Office (telephone (800) 647-5527) is in the ADDRESSES section. Comments 
will be available in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Jim Rutherford, Aerospace Engineer, 
FAA, Small Airplane Standards Branch, 901 Locust, Room 301, Kansas 
City, Missouri 64106; telephone: (816) 329-4165; fax: (816) 329-4090; 
email: jim.rutherford@faa.gov.

SUPPLEMENTARY INFORMATION: 

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposed AD. Send your comments to an address 
listed under the ADDRESSES section. Include ``Docket No. FAA-2017-0952; 
Product Identifier 2017-CE-028-AD'' at the beginning of your comments. 
We specifically invite comments on the overall regulatory, economic, 
environmental, and energy aspects of this proposed AD. We will consider 
all comments received by the closing date and may amend this proposed 
AD because of those comments.
    We will post all comments we receive, without change, to https://regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this proposed AD.

Discussion

    We issued AD 2017-10-11, Amendment 39-18885 (82 FR 24239, May 26, 
2017) (``AD 2017-10-11'') to address an unsafe condition on all Stemme 
AG Model Stemme S10-VT gliders (type certificate previously held by 
Stemme GmbH & Co. KG) equipped with a certain front gearbox, part 
number 11AG, and was based on mandatory continuing airworthiness 
information (MCAI) originated by an aviation authority of another 
country.
    Since we issued AD 2017-10-11, we have type certificated Stemme AG 
Model Stemme S 12 gliders in the United States and have determined 
those model gliders should also be included in the applicability of AD 
2017-10-11. In addition, Stemme AG has issued new service information 
with procedures for addressing the unsafe condition.

Related Service Information Under 1 CFR Part 51

    Stemme AG has issued STEMME Service Bulletin Dok. Nr.: P062-980010, 
Issue: 01, dated June 14, 2017, and STEMME Procedural Specification 
Dok. Nr.: P320-900060, dated June 14, 2017. In combination, the service 
information describes procedures for replacing the front gearbox. 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 the ADDRESSES section of this NPRM.

FAA's Determination and Requirements of the Proposed AD

    This product has been approved by the aviation authority of another 
country, and is approved for operation in the United States. Pursuant 
to our bilateral agreement with this State of Design Authority, they 
have notified us of the unsafe condition described in the MCAI and 
service information referenced above. We are proposing this AD because 
we evaluated all information and determined the unsafe condition exists 
and is likely to exist or develop on other products of the same type 
design.

Differences Between This Proposed AD and the Service Information

    The service information for this proposed AD allows the owner/
operator to do certain maintenance tasks. Also, the service information 
specifies certain maintenance tasks be done by Stemme AG. However, for 
this proposed AD, we do not allow the owner/operator to do any 
maintenance tasks; all maintenance tasks must be done by an 
appropriately certified mechanic or maintenance shop. In addition, we 
do not require any maintenance tasks be done specifically by Stemme AG; 
any appropriately certified mechanic or maintenance shop may do the 
tasks required by this proposed AD.

Costs of Compliance

    According to the U.S. registry, we have a total of 51 of both 
glider types registered, but there are still only 14 serial numbers of 
the part number 11AG front gearbox. Therefore, the most gliders that 
could be affected remains 14. According to Stemme AG, there are a total 
of 4 of the affected front gearboxes on both glider types of U.S. 
registry (2 for each model).
    It will take an estimated 19 work-hours per product to comply with 
the basic requirements of this proposed AD. The average labor rate is 
$85 per work-hour. Required parts would cost about $2,000 per product.
    Based on these figures, if we consider the costs for all 14 
affected gearboxes, then we estimate the cost of the proposed AD on 
U.S. operators to be $50,610, or $3,615 per product.

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.
    We are 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.
    This AD is issued in accordance with authority delegated by the 
Executive Director, Aircraft Certification Service, as authorized by 
FAA Order 8000.51C. In accordance with that order, issuance of ADs is 
normally a function of the Compliance and Airworthiness Division, but 
during this transition period, the Executive Director has delegated the 
authority to issue ADs applicable to small airplanes, gliders, and 
domestic business jet transport airplanes to the Director of the Policy 
and Innovation Division.

Regulatory Findings

    We 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:

[[Page 46940]]

    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Is not a ``significant rule'' under the DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979),
    (3) Will not affect intrastate aviation in Alaska, and
    (4) 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 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

0
1. The authority citation for part 39 continues to read as follows:

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


Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by removing Amendment 39-18885 (82 FR 
24239, May 26, 2017), and adding the following new AD:

Stemme AG: Docket No. FAA-2017-0952; Product Identifier 2017-CE-028-
AD.

(a) Comments Due Date

    We must receive comments by November 24, 2017.

(b) Affected ADs

    This AD replaces AD 2017-10-11, Amendment 39-18885 (82 FR 24239, 
May 26, 2017) (``AD 2017-10-11'').

(c) Applicability

    This AD applies to Stemme AG Model Stemme S10-VT gliders (type 
certificate previously held by Stemme GmbH & Co. KG), all serial 
numbers, and Stemme AG Model Stemme S 12 gliders, all serial 
numbers, that are:
    (1) Equipped with a front gearbox, part number (P/N) 11AG, with 
a serial number listed in table 1 to paragraph (c) of this AD; and
    (2) are certificated in any category.
    Table 1 to paragraph (c) of this AD--Affected P/N 11AG (front 
gearbox) S/Ns

80058/0814, 80059/0915, 80060/0915, 80061/1115, 80062/1215, 80063/
0116, 80064/0416, 80065/0616, 80066/0716, 80067/0916, 80068/1016, 
80069/0117, 80070/0217, 80071/0217.

    Note 1 to paragraph (c) of this AD: Page 2 of Stemme AG Service 
Bulletin No. P062-980010, dated April 21, 2017, provides a pictorial 
of where the serial number of the affected gearboxes are located.

(d) Subject

    Air Transport Association of America (ATA) Code 61: Propellers/
Propulsors.

(e) Reason

    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 certain 
propeller front transmission gear wheels having insufficient 
material strength because of improper heat treatment during 
manufacturing. We are issuing this proposed AD to add Stemme AG 
Model Stemme S 12 to the applicability, paragraph (c), of this AD, 
and to prevent failure of the propeller front transmission gear 
wheels. This failure could cause loss of power between the engine 
and the propeller, which could result in reduced control.

(f) Actions and Compliance

    Unless already done, do the following actions:
    (1) For Model Stemme S10-VT gliders: Before further flight after 
June 15, 2017 (the effective date of AD 2017-10-11), replace the 
front gearbox following STEMME Procedural Specification Dok. Nr.: 
P320-900060, dated June 14, 2017, as specified in STEMME Service 
Bulletin Dok. Nr.: P062-980010, Issue: 01, dated June 14, 2017.
    (2) For Model Stemme S 12 gliders: Before further flight after 
the effective date of this AD, replace the front gearbox following 
STEMME Procedural Specification Dok. Nr.: P320-900060, dated June 
14, 2017, as specified in STEMME Service Bulletin Dok. Nr.: P062-
980010, Issue: 01, dated June 14, 2017.
    (3) As of the effective date of this AD, do not install a front 
gear box listed in table 1 of paragraph (c) of this AD.
    (4) The service information for this AD allows the owner/
operator to do certain maintenance tasks. Also, the service 
information specifies certain maintenance tasks be done by Stemme 
AG. However, for this AD, we do not allow the owner/operator to do 
any maintenance tasks; all maintenance tasks must be done by an 
appropriately certifiedmechanic or maintenance shop. In addition, we 
do not require any maintenance tasks be done specifically by Stemme 
AG; any appropriately certified mechanic or maintenance shop may do 
the tasks required by this AD.

 (g) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
Small Airplane Standards Branch, FAA, has the authority to approve 
AMOCs for this AD, if requested using the procedures found in 14 CFR 
39.19. Send information to ATTN: Jim Rutherford, Aerospace Engineer, 
FAA, Small Airplane Standards Branch, 901 Locust, Room 301, Kansas 
City, Missouri 64106; telephone: (816) 329-4165; fax: (816) 329-
4090; email: jim.rutherford@faa.gov.
    (i) Before using any approved AMOC on any airplane to which the 
AMOC applies, notify your appropriate principal inspector (PI) in 
the FAA Flight Standards District Office (FSDO), or lacking a PI, 
your local FSDO.
    (ii) AMOCs approved for AD 2017-10-11, Amendment 39-18885 (82 FR 
24239, May 26, 2017) are approved as AMOCs for the corresponding 
provisions of this AD.
    (2) Contacting the Manufacturer: For any requirement in this AD 
to obtain corrective actions from a manufacturer, the action must be 
accomplished using a method approved by the Manager, Small Airplane 
Standards Branch, FAA; or the European Aviation Safety Agency 
(EASA).

(h) Related Information

    (1) Refer to MCAI European Aviation Safety Agency (EASA) AD No. 
2017-0072-E, dated April 26, 2017, and Stemme AG Service Bulletin 
No. P062-980010, dated April 21, 2017, for related information. You 
may examine the MCAI on the Internet at https://www.regulations.gov 
by searching for and locating Docket No. FAA-2017-0952. For service 
information related to this AD, contact STEMME AG, Flugplatzstrasse 
F2, Nr. 6-7, D-15344 Strausberg, Germany; telephone: +49 (0) 3341 
3612-0, fax: +49 (0) 3341 3612-30; Internet: https://www.stemme.com. 
You may review copies of the referenced service information at the 
FAA, Policy and Innovation Division, 901 Locust, Kansas City, 
Missouri 64106. For information on the availability of this material 
at the FAA, call (816) 329-4148.

    Issued in Kansas City, Missouri, on September 26, 2017.
Pat Mullen,
Acting Deputy Director, Policy & Innovation Division, Aircraft 
Certification Service.
[FR Doc. 2017-21226 Filed 10-6-17; 8:45 am]
 BILLING CODE 4910-13-P

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