
[Federal Register Volume 82, Number 40 (Thursday, March 2, 2017)]
[Proposed Rules]
[Pages 12312-12314]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-03967]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-0158; Directorate Identifier 2016-CE-040-AD]
RIN 2120-AA64


Airworthiness Directives; DG Flugzeugbau GmbH Gliders

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

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: We propose to adopt a new airworthiness directive (AD) for DG 
Flugzeugbau GmbH Model DG-500MB gliders that are equipped with a Solo 
2625 02 engine that has been modified with a fuel injection system 
following the instructions of Solo Kleinmotoren GmbH Service Bulletin 
(SB)/Technische Mitteilung (TM) 4600-3 ``Fuel Injection System'' and 
re-identified as Solo 2625 02i. 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 failure of the connecting rod bearing resulting from too 
much load on the rod bearings from the engine control unit. We are 
issuing this proposed AD to require actions to address the unsafe 
condition on these products.

DATES: We must receive comments on this proposed AD by April 17, 2017.

ADDRESSES: You may send comments by any of the following methods:
     Federal eRulemaking Portal: Go to http://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 
Solo Kleinmotoren GmbH, Postfach 600152, 71050 Sindelfingen, Germany; 
telephone: +49 703 1301-0; fax: +49 703 1301-136; email: germany.com">aircraft@solo-germany.com; Internet: http://aircraft.solo-online.com. You may review 
this referenced service information at the FAA, Small Airplane 
Directorate, 901 Locust, 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 http://www.regulations.gov by searching for and locating Docket No. FAA-2017-
0158; 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

[[Page 12313]]

ADDRESSES section. Comments will be available in the AD docket shortly 
after receipt.

FOR FURTHER INFORMATION CONTACT: Jim Rutherford, Aerospace Engineer, 
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-2017-0158; 
Directorate Identifier 2016-CE-040-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 http://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

    The European Aviation Safety Agency (EASA), which is the Technical 
Agent for the Member States of the European Community, has issued EASA 
AD No.: 2016-0254, dated December 15, 2016, correction dated January 4, 
2017 (referred to after this as ``the MCAI''), to correct an unsafe 
condition for the specified products. The MCAI states:

    Several occurrences have been reported of connecting rod bearing 
failure.
    This condition, if not corrected, could lead to an uncommanded 
in-flight engine shut-down, possibly resulting in damage to the 
powered sailplane.
    To address this unsafe condition, Solo Kleinmotoren developed a 
software update for the engine control unit (ECU) to reduce the load 
on the rod bearings, and issued SB/TM 4600-6, providing instructions 
to upload the modified software into the ECU.
    For the reason described above, this AD requires a modification, 
updating the ECU software.

You may examine the MCAI on the Internet at http://www.regulations.gov 
by searching for and locating Docket No. FAA-2017-0158.

Related Service Information Under 1 CFR Part 51

    Solo Kleinmotoren GmbH has issued Technische Mitteilung (English 
translation: Service Bulletin), Nr. 4600-6, Ausgabe 1 (English 
translation: Issue 1), dated November 16, 2016. This service 
information contains a software update that provides new settings to 
the engine control unit (ECU) to lower the load on the bearings of the 
crankshaft and 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.

Costs of Compliance

    We estimate that this proposed AD will affect 3 products of U.S. 
registry. We also estimate that it would take about 2 work-hours per 
product to comply with the basic requirements of this proposed AD. The 
average labor rate is $85 per work-hour.
    Based on these figures, we estimate the cost of the proposed AD on 
U.S. operators to be $510, or $170 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.

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:
    (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 adding the following new AD:

DG Flugzeugbau GmbH: Docket No. FAA-2017-0158; Directorate 
Identifier 2016-CE-040-AD.

(a) Comments Due Date

    We must receive comments by April 17, 2017.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to DG Flugzeugbau GmbH DG-500MB gliders, all 
serial numbers, that are:
    (1) Equipped with a Solo 2625 02 engine that has been modified 
with a fuel injection system following the instructions of Solo 
Kleinmotoren GmbH Service Bulletin (SB)/Technische Mitteilung (TM) 
4600-3 ``Fuel Injection System'' and re-identified as Solo 2625 02i, 
and with a serial number (S/N) up to 369/207, except S/N's 354/194, 
356/196,

[[Page 12314]]

357/197, 358/198, 361/201, 362/202, 363/203, 364/204, and 368/206; 
that are
    (2) certificated in any category.

(d) Subject

    Air Transport Association of America (ATA) Code 73: Engine Fuel 
& Control.

(e) Reason

    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 failure of the 
connecting rod bearing resulting from too much load on the rod 
bearings from the engine control unit. We are issuing this proposed 
AD to prevent such failure that could lead to an uncommanded in-
flight engine shut-down, which could result in damage to the glider.

(f) Actions and Compliance

    Unless already done, do the following actions in paragraphs 
(f)(1) and (2) of this AD:
    (1) Within the next 60 days after the effective date of this AD, 
modify the engine by installing a software update for the engine 
control unit (ECU) following the actions in Solo Kleinmotoren GmbH 
Technische Mitteilung (English translation: Service Bulletin), Nr. 
4600-6, Ausgabe 1 (English translation: Issue 1), dated November 16, 
2016.
    (2) After the modification of an engine as required by paragraph 
(f)(1) of this AD, do not install a replacement ECU on that engine 
and do not upload any software update to the ECU of that engine 
unless the ECU software version is as specified in Solo Kleinmotoren 
GmbH Technische Mitteilung (English translation: Service Bulletin), 
Nr. 4600-6, Ausgabe 1 (English translation: Issue 1), dated November 
16, 2016.

Note 1 to paragraph (f)(1) and (2) of this AD:

    This service information contains German to English translation. 
The EASA used the English translation in referencing the document. 
For enforceability purposes, we will refer to the Solo Kleinmotoren 
service information as it appears on the document.

(g) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
Standards Office, 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, 901 Locust, 
Room 301, Kansas City, Missouri 64106; telephone: (816) 329-4165; 
fax: (816) 329-4090; email: jim.rutherford@faa.gov. 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.
    (2) Airworthy Product: For any requirement in this AD to obtain 
corrective actions from a manufacturer or other source, use these 
actions if they are FAA-approved. Corrective actions are considered 
FAA-approved if they are approved by the State of Design Authority 
(or their delegated agent). You are required to assure the product 
is airworthy before it is returned to service.

(h) Related Information

    Refer to MCAI European Aviation Safety Agency (EASA) AD No.: 
2016-0254, dated December 15, 2016, correction dated January 4, 
2017, for related information. You may examine the MCAI on the 
Internet at http://www.regulations.gov by searching for and locating 
Docket No. FAA-2017-0158. For service information related to this 
AD, contact Solo Kleinmotoren GmbH, Postfach 600152, 71050 
Sindelfingen, Germany; telephone: +49 703 1301-0; fax: +49 703 1301-
136; email: germany.com">aircraft@solo-germany.com; Internet: http://aircraft.solo-online.com. You may review this referenced service 
information at the FAA, Small Airplane Directorate, 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 February 17, 2017.
Pat Mullen,
Acting Manager, Small Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2017-03967 Filed 3-1-17; 8:45 am]
BILLING CODE 4910-13-P


