Federal Register / Vol. 82, No. 183 / Friday, September 22, 2017 / Proposed Rules 44361 

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 (AD): 

Gulfstream Aerospace Corporation: Docket 

No. FAA–2017–0910; Product Identifier 

2017–CE–027–AD. 

(a) Comments Due Date 

We must receive comments by November 

6, 2017. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Gulfstream Aerospace 

Corporation Model GIII (G–1159A), serial 

number (S/N) 460; Model G–IV, S/Ns 1129, 

1151, 1167, 1175, 1214, and 1380; and Model 

GIV–X, S/Ns 4118 and 4227 airplanes. 

(d) Subject 

Joint Aircraft System Component (JASC)/ 

Air Transport Association (ATA) of America 

Code 57, Wings. 

(e) Unsafe Condition 

This AD was prompted by a report that 

certain flap tracks were manufactured with 

the upper flange thickness less than design 

minimum. We are issuing this AD to prevent 

deformation or failure of a flap track that 

could cause flap actuator failure, ‘‘B track’’ 

roller overload, flap twisting/failure, or 

asymmetrical flap track failure. This failure 

could result in an unrecoverable roll. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Replace Flap Track C 

Within the next 6 months after the effective 

date of this AD, replace the flap track C on 

the left side, part number (P/N) 

1159WM20052–105, and/or the flap track C 

on the right side, P/N 1159WM20052–106, 

with an airworthy part. Do the replacements 

following Gulfstream III Customer Bulletin 

Number 187, Gulfstream G450 Customer 

Bulletin Number 195, or Gulfstream IV 

Customer Bulletin Number 240, all dated 

June 28, 2017, as applicable. 

(h) Reporting Requirement 

Although Gulfstream III Customer Bulletin 

Number 187, Gulfstream G450 Customer 

Bulletin Number 195, and Gulfstream IV 

Customer Bulletin Number 240, all dated 

June 28, 2017, specify to submit certain 

information to the manufacturer, this AD 

does not require that action. 

(i) Special Flight Permit 

Special flight permits under 14 CFR 39.23 

are allowed with the following limitation: Do 

not extend 39 degrees (FULL) flaps until 

airspeed is at or below 170 knots. 

(j) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, Atlanta ACO Branch, 

FAA, has the authority to approve AMOCs 

for this AD, if requested using the procedures 

found in 14 CFR 39.19. In accordance with 

14 CFR 39.19, send your request to your 

principal inspector or local Flight Standards 

District Office, as appropriate. If sending 

information directly to the manager of the 

ACO Branch, send it to the attention of the 

person identified in paragraph (k) of this AD. 

(2) Before using any approved AMOC, 

notify your appropriate principal inspector, 

or lacking a principal inspector, the manager 

of the local flight standards district office/ 

certificate holding district office. 

(3) For service information that contains 

steps that are labeled as Required for 

Compliance (RC), the provisions of paragraph 

(g) of this AD apply. 

(i) The steps labeled as RC, including 

substeps under an RC step and any figures 

identified in an RC step, must be done to 

comply with the AD. An AMOC is required 

for any deviations to RC steps, including 

substeps and identified figures. 

(ii) Steps not labeled as RC may be 

deviated from using accepted methods in 

accordance with the operator’s maintenance 

or inspection program without obtaining 

approval of an AMOC, provided the RC steps, 

including substeps and identified figures, can 

still be done as specified, and the airplane 

can be put back in an airworthy condition. 

(k) Related Information 

(1) For more information about this AD, 

contact Ron Wissing, Aerospace Engineer, 

Atlanta ACO Branch, FAA, 1701 Columbia 

Avenue, College Park, Georgia 30337; phone: 

(404) 474–5552; fax: (404) 474–5606; email: 

ronald.wissing@faa.gov. 

(2) For service information identified in 

this AD, contact Gulfstream Aerospace 

Corporation, P.O. Box 2206, Savannah, 

Georgia 31404–2206; telephone: (912) 965– 

3000; fax: (912) 965–3520; email: pubs@

gulfstream.com; Internet: 

www.gulfstream.com. 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 14, 2017. 

Pat Mullen, 

Acting Deputy Director, Policy & Innovation 

Division, Aircraft Certification Service. 

[FR Doc. 2017–20051 Filed 9–21–17; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2017–0911; Product 

Identifier 2017–CE–025–AD] 

RIN 2120–AA64 

Airworthiness Directives; Alexander 

Schleicher GmbH & Co. 

Segelflugzeugbau 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 all 

Alexander Schleicher GmbH & Co. 

Segelflugzeugbau Models ASH 25M and 

ASH 26E gliders. 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 fatigue cracks found on the 

exhaust silencer. 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 November 6, 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 Alexander 

Schleicher GmbH & Co. 

Segelflugzeugbau, AlexanderSchleicher-Str. 1, D–36163 

Poppenhausen, Germany; phone: +49 

(0) 06658 89–0; fax: +49 (0) 06658 89– 

40; Internet: http://www.alexanderschleicher.de/; email: info@alexanderschleicher.de. You may review this 

referenced service information at the 

FAA, Policy and Innovation Division, 

901 Locust, Kansas City, Missouri 

44362 Federal Register / Vol. 82, No. 183 / Friday, September 22, 2017 / Proposed Rules 

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– 

0911; 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–2017–0911; Product Identifier 

2017–CE–025–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 AD No. 2017– 

0136, dated July 31, 2017 (referred to 

after this as ‘‘the MCAI’’), to correct an 

unsafe condition for the specified 

products. The MCAI states: 

Occurrences were reported of finding 

cracks on exhaust silencer part number (P/N) 

800.65.0001, installed on ASK 21 Mi 

powered sailplanes. Subsequent investigation 

determined that the affected part is 

susceptible to fatigue cracking and is also 

installed on other Schleicher powered 

sailplanes. 

This condition, if not corrected, could lead 

to heat damage in the engine compartment 

and to the engine installation, possibly 

resulting in reduced control of the powered 

sailplane. 

To address this potentially unsafe 

condition, Schleicher issued Technical Note 

(TN) ASK 21 Mi No. 11, TN ASW 22 BLE 50R 

No. 16, TN ASH 25 M/Mi No. 32 and TN 

ASH 26 E No. 19 (single document, hereafter 

referred to as ‘the TN’ in this [EASA] AD), 

to provide replacement instructions. 

For the reasons described above, this 

[EASA] AD requires replacement of the 

affected exhaust silencer with an improved 

part and introduces installation restrictions 

of a part with P/N 800.65.0001. 

You may examine the MCAI on the 

Internet at http://www.regulations.gov 

by searching for and locating Docket No. 

FAA–2017–0911. 

Related Service Information Under 

1 CFR Part 51 

Alexander Schleicher GmbH & Co. 

Segelflugzeugbau has issued ASK 21 Mi 

Technical Note No. 11, ASW 22 BLE 

50R Technical Note No. 16, ASH 25 M/ 

Mi Technical Note No. 32, ASH 26 E 

Technical Note No. 19 (single 

document), dated January 8, 2016. The 

service information describes 

procedures for replacing the exhaust 

silencer with an improved part. 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. 

Costs of Compliance 

We estimate that this proposed AD 

will affect 35 products of U.S. registry. 

We also estimate that it would take 

about 8 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 $3,900 per 

product. 

Based on these figures, we estimate 

the cost of this proposed AD on U.S. 

operators to be $160,300, or $4,580 per 

product. 

We have no way of determining the 

number of products that have an 

affected exhaust silencer, part number 

800.65.0001, installed that would need 

to be replaced. Therefore, this cost 

estimate includes all affected gliders on 

the U.S. registry. 

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: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Is not a ‘‘significant rule’’ under 

the DOT Regulatory Policies and 

Federal Register / Vol. 82, No. 183 / Friday, September 22, 2017 / Proposed Rules 44363 

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 adding 

the following new AD: 

Alexander Schleicher GmbH & Co. 

Segelflugzeugbau: Docket No. FAA– 

2017–0911; Product Identifier 2017–CE– 

025–AD. 

(a) Comments Due Date 

We must receive comments by November 

6, 2017. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Alexander Schleicher 

GmbH & Co. Segelflugzeugbau Models ASH 

25M and ASH 26E gliders, all serial numbers, 

that: 

(1) Have an exhaust silencer, part number 

(P/N) 800.65.0001, installed; and 

(2) are certificated in any category. 

(d) Subject 

Air Transport Association of America 

(ATA) Code 78: Engine Exhaust. 

(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 fatigue 

cracks found on the exhaust silencer. We are 

issuing this AD to prevent heat damage in the 

engine compartment and to the engine 

installation, which could result in reduced 

control. 

(f) Actions and Compliance 

Unless already done, do the following 

actions: 

(1) Before exceeding 150 hours time-inservice (TIS) on the exhaust silencer, (P/N) 

800.65.0001, since new, or within the next 5 

hours TIS after the effective date of this AD, 

whichever occurs later, replace P/N 

800.65.0001 with an improved exhaust 

silencer, P/N 800.65.9010. Do the 

replacement as specified in Alexander 

Schleicher GmbH & Co. Segelflugzeugbau 

ASK 21 Mi Technical Note No. 11, ASW 22 

BLE 50 R Technical Note No. 16, ASH 25 M/ 

Mi Technical Note No. 32, ASH 26 E 

Technical Note No. 19 (single document), 

dated January 8, 2016. 

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

not install a P/N 800.65.0001 exhaust 

silencer. 

(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. Before using any 

approved AMOC on any glider 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) 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 

Refer to MCAI EASA AD 2017–0136, dated 

July 31, 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–2017–0911. 

For service information related to this AD, 

contact Alexander Schleicher GmbH & Co. 

Segelflugzeugbau, Alexander-Schleicher-Str. 

1, D–36163 Poppenhausen, Germany; phone: 

+49 (0) 06658 89–0; fax: +49 (0) 06658 89– 

40; Internet: http://www.alexanderschleicher.de/; email: info@alexanderschleicher.de. You may review this 

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 14, 2017. 

Pat Mullen, 

Acting Deputy Director, Policy & Innovation 

Division, Aircraft Certification Service. 

[FR Doc. 2017–20052 Filed 9–21–17; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2017–0103; Product 

Identifier 2016–SW–086–AD] 

RIN 2120–AA64 

Airworthiness Directives; Agusta 

S.p.A. Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for Agusta 

S.p.A. Model AB139 and Model AW139 

helicopters. This proposed AD would 

require inspecting the thickness of the 

tail gearbox (TGB) central housing 

(housing). This proposed AD is 

prompted by reports that the housing 

thickness does not conform to its type 

design. The actions of this proposed AD 

are intended to detect and correct an 

unsafe condition on these products. 

DATES: We must receive comments on 

this proposed AD by November 21, 

2017. 

ADDRESSES: You may send comments by 

any of the following methods: 

• Federal eRulemaking Docket: Go to 

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

online instructions for sending your 

comments electronically. 

• Fax: 202–493–2251. 

• Mail: Send comments to the U.S. 

Department of Transportation, Docket 

Operations, M–30, West Building 

Ground Floor, Room W12–140, 1200 

New Jersey Avenue SE., Washington, 

DC 20590–0001. 

• Hand Delivery: Deliver to the 

‘‘Mail’’ address between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

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– 

0103; or in person at the Docket 

Operations Office between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. The AD docket 

contains this proposed AD, the 

European Aviation Safety Agency 

(EASA) AD, the economic evaluation, 

any comments received, and other 

information. The street address for the 

Docket Operations Office (telephone 

800–647–5527) is in the ADDRESSES

section. Comments will be available in 

the AD docket shortly after receipt.