5944 Federal Register / Vol. 81, No. 23 / Thursday, February 4, 2016 / Proposed Rules 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2015–1130; Directorate 

Identifier 2015–CE–008–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). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for DG 

Flugzeugbau GmbH Model DG–1000T 

gliders equipped with a Solo 

Kleinmotoren Model 2350 C engine that 

would revise AD 2015–09–04. 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 engine shaft 

failure and consequent propeller 

detachment. 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 March 21, 2016. 

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 7031 301–0; fax: +49 

7031 301–136; email: aircraft@sologermany.com; Internet: http://

aircraft.solo-online.com and DG 

Flugzeugbau GmbH, Otto Lilienthal Weg 

2/Am Flugplatz, 76646 Bruchsal, 

Germany; telephone: +49 7251 3020–0; 

fax: +49 7251 3020–200; email: 

wassenaar@dg-flugzeugbau.de; Internet: 

http://www.dg-flugzeugbau.de/ 

index.php?id=1329. You may view 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–2015– 

1130; 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, 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–2015–1130; Directorate Identifier 

2015–CE–008–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 

On April 22, 2015, we issued AD 

2015–09–04, Amendment 39–18150 (80 

FR 25591, May 5, 2015). That AD 

required actions intended to address an 

unsafe condition on DG Flugzeugbau 

GmbH Model DG–1000T gliders 

equipped with a Solo Kleinmotoren 

Model 2350 C engine and was based on 

mandatory continuing airworthiness 

information (MCAI) originated by an 

aviation authority of another country. 

Since we issued AD 2015–09–04, 

Amendment 39–18150 (80 FR 25591, 

May 5, 2015), new service information 

has been issued that includes 

procedures for replacement of excenter 

axle-pulley assembly and installation of 

an elastomeric damper element between 

the propeller and upper pulley. This 

optional modification will allow 

resuming engine operation. 

The European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Community, has issued AD No.: 2015– 

0052R1, dated November 19, 2015 

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

correct the above-referenced unsafe 

condition for the specified products. 

The MCAI states: 

An occurrence of engine shaft failure and 

consequent propeller detachment was 

reported on a Solo 2350 C engine. 

This condition, if not corrected, could lead 

to additional cases of release of the propeller 

from the engine, possibly resulting in damage 

to the sailplane, or injury to persons on the 

ground. 

To address this unsafe condition, EASA 

issued Emergency AD 2013–0217–E to 

prohibit operation of the engine. That AD 

was later revised to introduce an optional 

modification, through Solo Kleinmotoren 

Service Bulletin (SB) 4603–14, to install a 

modified excenter axle-pulley assembly, 

allowing to resume operation of the engine. 

Since EASA AD 2013–0217R1 was issued, 

another occurrence of engine shaft failure 

and propeller detachment was reported on a 

Solo 2350 C engine which had been modified 

in accordance with Solo Kleinmotoren SB 

4603–14. 

Consequently, EASA issued Emergency AD 

2015–0052–E, which superseded AD 2013– 

0217R1, to prohibit operation of all Solo 2350 

C engines, including those engines which 

had been modified in accordance with Solo 

Kleinmotoren SB 4603–14. That AD also 

required a one-time inspection of the 

propeller shaft to detect cracks and the 

reporting of findings. 

Since that AD was issued, Solo 

Kleinmotoren GmbH developed modification 

drawing nb. 2031211–V2 available for in 

service application through Solo SB 4603–17 

and DG Flugzeugbau GmbH developed 

modifications drawing nb. 10 M 067, 

available for in service application through 

DG Flugzeugbau Technical Note (TN) 1000/ 

26 which include replacement of excenter 

axle-pulley assembly and installation of an 

elastomeric damper element between the 

propeller and upper pulley. 

This AD is revised to introduce optional 

modifications to allow resuming operation of 

an engine. 

You may examine the MCAI on the 

Internet at http://www.regulations.gov 

by searching for and locating Docket No. 

FAA–2015–1130. 


asabaliauskas on DSK5VPTVN1PROD with PROPOSALS
Federal Register / Vol. 81, No. 23 / Thursday, February 4, 2016 / Proposed Rules 5945 

Related Service Information Under 1 

CFR 51 

We reviewed Solo Kleinmotoren 

GmbH Anleitung zur Inspektion 

(English translation: Inspection 

Instruction), Nr. 4603–1, Ausgabe 

(English translation: Dated) March 26, 

2015; Solo Kleinmotoren GmbH 

Technische Mitteilung (English 

translation: Service Bulletin) Nr. 4603– 

17, Ausgabe (English translation: Dated) 

July 15, 2015; and DG Flugzeugbau 

GmbH Technical note No. 1000/26, 

dated September 23, 2015, with 10M072 

titled Propellermontage nach TM 1000– 

26 (English translation: Propeller 

assembly TN 1000–26), dated July 14, 

2015. Solo Kleinmotoren GmbH 

Anleitung zur Inspektion (English 

translation: Inspection Instruction), Nr. 

4603–1, Ausgabe (English translation: 

Dated) March 26, 2015, describes 

procedures for inspecting the propeller 

shaft for cracking and reporting the 

results to the manufacturer. Solo 

Kleinmotoren GmbH Techniseche 

Mitteilung (English translation: Service 

Bulletin) Nr. 4603–17, Ausgabe (English 

translation: Dated) July 15, 2015, 

describes procedures for replacement of 

the excenter axle-pulley assembly. DG 

Flugzeugbau GmbH Technical note No. 

1000/26, dated September 23, 2015, 

describes procedures for removing the 

excenter axle-pulley assembly and 

sending it to Solo Kleinmotoren GmbH 

for modification with a new rear 

bearing, axle, and elastomeric damper 

element. 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. 

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 

would affect 2 products of U.S. registry. 

We also estimate that it would take 

about .5 work-hour per product to 

comply with the basic operational 

limitation requirement of this proposed 

AD. The average labor rate is $85 per 

work-hour. 

Based on these figures, we estimate 

the cost of this portion of this proposed 

AD on U.S. operators to be $85, or 

$42.50 per product. 

We also estimate that it would take 

about 1.5 work-hours per product to 

comply with the basic axle inspection 

(remove, inspect, and reinstall) 

requirement of this proposed AD. The 

average labor rate is $85 per work-hour. 

Based on these figures, we estimate 

the cost of this portion of this proposed 

AD on U.S. operators to be $255, or 

$127.50 per product. 

We also estimate that it would take 

about 2 work-hours per product to 

comply with the optional axle with 

drive belt pulley unit replacement and 

engine test run of this proposed AD. The 

average labor rate is $85 per work-hour. 

Required parts would cost about $100 

per product. 

Based on these figures, we estimate 

the cost of this optional proposed AD 

action on U.S. operators to be $540, or 

$270 per product. 

We also estimate that it would take 

about .5 work-hour per product to 

comply with the removal of the 

operational limitation requirement after 

doing the optional replacement of this 

proposed AD. The average labor rate is 

$85 per work-hour. 

Based on these figures, we estimate 

the cost of this proposed AD action on 

U.S. operators to be $85, or $42.50 per 

product. 

Paperwork Reduction Act 

A federal agency may not conduct or 

sponsor, and a person is not required to 

respond to, nor shall a person be subject 

to penalty for failure to comply with a 

collection of information subject to the 

requirements of the Paperwork 

Reduction Act unless that collection of 

information displays a current valid 

OMB control number. The control 

number for the collection of information 

required by this AD is 2120–0056. The 

paperwork cost associated with this AD 

has been detailed in the Costs of 

Compliance section of this document 

and includes time for reviewing 

instructions, as well as completing and 

reviewing the collection of information. 

Therefore, all reporting associated with 

this AD is mandatory. Comments 

concerning the accuracy of this burden 

and suggestions for reducing the burden 

should be directed to the FAA at 800 

Independence Ave. SW., Washington, 

DC 20591. ATTN: Information 

Collection Clearance Officer, AES–200. 

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 

■ 1. The authority citation for part 39 

continues to read as follows: 

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


asabaliauskas on DSK5VPTVN1PROD with PROPOSALS
5946 Federal Register / Vol. 81, No. 23 / Thursday, February 4, 2016 / Proposed Rules 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by 

removing Amendment 39–18150 (80 FR 

25591, May 5, 2015), and adding the 

following new AD: 

DG Flugzeugbau GmbH: Docket No. FAA– 

2015–1130; Directorate Identifier 2015– 

CE–008–AD. 

(a) Comments Due Date 

We must receive comments by March 21, 

2016. 

(b) Affected ADs 

This AD replaces AD 2015–09–04, 

Amendment 39–18150 (80 FR 25591, May 5, 

2015) (‘‘AD 2015–09–04’’). 

(c) Applicability 

This AD applies to DG Flugzeugbau GmbH 

Model DG–1000T gliders, all serial numbers, 

that are: 

(1) Equipped with a Solo Kleinmotoren 

Model 2350 C engine; and 

(2) Certificated in any category. 

(d) Subject 

Air Transport Association of America 

(ATA) Code 72: Engine. 

(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 engine 

shaft failure with consequent propeller 

detachment. We are issuing this AD to 

prevent failure of the engine shaft with 

consequent propeller detachment, which 

could result in damage to the glider or injury 

of persons on the ground. 

(f) Actions and Compliance 

Unless already done, do the following 

actions: 

(1) As of November 25, 2013 (the effective 

date retained from AD 2013–22–14, 

Amendment 39–17646 (78 FR 65869, 

November 4, 2013)), do not operate the 

engine unless the engine is modified 

following instructions that are FAA-approved 

specifically for this AD. 

(2) Modification of an engine following the 

instructions in Solo Kleinmotoren Service 

Bulletin 4603–14, dated April 28, 2014, is not 

an acceptable modification to comply with 

paragraph (f)(1) of this AD. 

(3) As of May 26, 2015 (the effective date 

retained from AD 2015–09–04), place a copy 

of this AD into the Limitations section of the 

aircraft flight manual (AFM). 

(4) Within the next 30 days after May 26, 

2015 (the effective date retained from AD 

2015–09–04), do a one-time inspection 

(magnetic particle or dye penetrant) of the 

propeller shaft following Solo Kleinmotoren 

GmbH Anleitung zur Inspektion (English 

translation: Inspection Instruction), Nr. 

4603–1, Ausgabe (English translation: Dated) 

March 26, 2015. 

Note 1 to paragraph (f)(4) 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. 

(5) Within the next 30 days after May 26, 

2015 (the effective date retained from AD 

2015–09–04), report the results of the 

inspection required in paragraph (f)(4) of this 

AD to Solo Kleinmotoren GmbH. Include the 

serial number of the engine and the 

operational time since change of the axle in 

your report. You may find contact 

information for Solo Kleinmotoren GmbH in 

paragraph (h) of this AD. 

(6) At any time after the effective date of 

this AD, you may modify the engine 

following Solo Kleinmotoren GmbH 

Techniseche Mitteilung (English translation: 

Service Bulletin) Nr. 4603–17, Ausgabe 

(English translation: Dated) July 15, 2015; 

and DG Flugzeugbau GmbH Technical note 

No. 1000/26, dated September 23, 2015, with 

10M072 titled Propellermontage nach TM 

1000–26 (English translation: Propeller 

assembly TN 1000–26), dated July 14, 2015. 

This modification allows engine operation. 

Note 1 to paragraph (f)(6) 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 and the DG Flugzeugbau GmbH 

as it appears on the document. 

(7) Before further flight after doing the 

modification allowed in (f)(6) of this AD, 

remove the AD placed into the Limitations 

section of the AFM as required in paragraph 

(f)(3) of this AD. 

(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. 

(3) Reporting Requirements: For any 

reporting requirement in this AD, a federal 

agency may not conduct or sponsor, and a 

person is not required to respond to, nor 

shall a person be subject to a penalty for 

failure to comply with a collection of 

information subject to the requirements of 

the Paperwork Reduction Act unless that 

collection of information displays a current 

valid OMB Control Number. The OMB 

Control Number for this information 

collection is 2120–0056. Public reporting for 

this collection of information is estimated to 

be approximately 5 minutes per response, 

including the time for reviewing instructions, 

completing and reviewing the collection of 

information. All responses to this collection 

of information are mandatory. Comments 

concerning the accuracy of this burden and 

suggestions for reducing the burden should 

be directed to the FAA at: 800 Independence 

Ave. SW., Washington, DC 20591, Attn: 

Information Collection Clearance Officer, 

AES–200. 

(h) Related Information 

Refer to MCAI European Aviation Safety 

Agency (EASA) AD No.: 2015–0052R1, dated 

November 19, 2015, for related information. 

You may examine the MCAI on the Internet 

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

for and locating Docket No. FAA–2015–1130. 

For service information related to this AD, 

contact Solo Kleinmotoren GmbH, Postfach 

600152, 71050 Sindelfingen, Germany; 

telephone: +49 7031 301–0; fax: +49 7031 

301–136; email: aircraft@solo-germany.com; 

Internet: http://aircraft.solo-online.com and 

DG Flugzeugbau GmbH, Otto Lilienthal Weg 

2/Am Flugplatz, 76646 Bruchsal, Germany; 

telephone: +49 7251 3020–0; fax: +49 7251 

3020–200; email: wassenaar@dgflugzeugbau.de; Internet: http://www.dgflugzeugbau.de/index.php?id=1329. You may 

view 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 January 

28, 2016. 

Pat Mullen, 

Acting Manager, Small Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2016–01962 Filed 2–3–16; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2016–0835; Airspace 

Docket No. 16–ASW–1] 

Proposed Establishment of Class E 

Airspace; Hollis, OK 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: This action proposes to 

establish Class E airspace at Hollis, OK. 

Controlled airspace is necessary to 

accommodate new Standard Instrument 

Approach Procedures developed at 

Hollis Municipal Airport, for the safety 

and management of Instrument Flight 

Rules (IFR) operations at the airport. 

DATES: Comments must be received on 

or before March 21, 2016. 


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