This section of the FEDERAL REGISTER

contains notices to the public of the proposed

issuance of rules and regulations. The

purpose of these notices is to give interested

persons an opportunity to participate in the

rule making prior to the adoption of the final

rules.

Proposed Rules Federal Register

35568 

Vol. 83, No. 145 

Friday, July 27, 2018 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2018–0689; Product 

Identifier 2018–CE–016–AD] 

RIN 2120–AA64 

Airworthiness Directives; Gulfstream 

Aerospace Corporation Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for certain 

Gulfstream Aerospace Corporation 

(Gulfstream) Models G–IV and GIV–X 

airplanes. This proposed AD was 

prompted by reports of disbonding and 

surface cracking of the composite aft 

pressure bulkhead. This proposed AD 

would require inspections of the 

forward and aft surfaces of the pressure 

bulkhead composite panels for damage 

and repair of any damage found. We are 

proposing this AD to address the unsafe 

condition on these products. 

DATES: We must receive comments on 

this proposed AD by September 10, 

2018. 

ADDRESSES: You may send comments, 

using the procedures found in 14 CFR 

11.43 and 11.45, by any of the following 

methods: 

• Federal eRulemaking Portal: Go to 

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: Deliver to Mail 

address above between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For service information identified in 

this NPRM, contact Gulfstream 

Aerospace Corporation, P.O. Box 2206, 

Savannah, Georgia 31402–2206; 

telephone: (800) 810–4853; fax 912– 

965–3520; email: pubs@gulfstream.com; 

internet: http://www.gulfstream.com/ 

product_support/technical_pubs/pubs/ 

index.htm. You may view this 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. 

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–2018– 

0689; or in person at Docket Operations 

between 9 a.m. and 5 p.m., Monday 

through Friday, except Federal holidays. 

The AD docket contains this NPRM, the 

regulatory evaluation, any comments 

received, and other information. The 

street address for Docket Operations 

(phone: 800–647–5527) is listed above. 

Comments will be available in the AD 

docket shortly after receipt. 

FOR FURTHER INFORMATION CONTACT: 

William O. Herderich, Aerospace 

Engineer, Atlanta ACO Branch, FAA, 

1701 Columbia Avenue, College Park, 

Georgia 30337; phone: (404) 474–5547; 

fax: (404) 474–5605; email: 

william.o.herderich@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to send any written 

relevant data, views, or arguments about 

this proposal. Send your comments to 

an address listed under the ADDRESSES

section. Include ‘‘Docket No. FAA– 

2018–0689; Product Identifier 2018–CE– 

016–AD’’ at the beginning of your 

comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of this NPRM. We will consider 

all comments received by the closing 

date and may amend this NPRM 

because of those comments. 

We will post all comments we 

receive, without change, to http://

www.regulations.gov, including any 

personal information you provide. We 

will also post a report summarizing each 

substantive verbal contact we receive 

about this NPRM. 

Discussion 

We received reports of disbonding 

and accompanying surface cracking of 

the composite aft pressure bulkhead on 

Gulfstream Model G–IV airplanes. 

Gulfstream Model GIV–X airplanes have 

the same type design. During scheduled 

maintenance, areas with disbonding and 

accompanying surface cracks were 

found. Operational pressure loads bypassing the disbonded facesheet caused 

wrinkling or compression failure and 

led to the surface cracking. This 

condition, if not addressed, could result 

in structural failure of the bulkhead and 

loss of cabin pressure. 

Airplanes maintained under 

Gulfstream’s Maintenance Steering 

Group (MSG–3) maintenance program 

do not have a scheduled tap test 

inspection of the aft pressure bulkhead. 

Model G–IV airplanes with a serial 

number (S/N) 1400 through 1535, and 

Model GIV–X airplanes with a S/N 4001 

through 4004 adopted the MSG–3 

maintenance program in production. 

Airplanes produced earlier may change 

to the MSG–3 program by following the 

instructions in Aircraft Service Change 

(ASC) No. 416A, dated September 29, 

2000. 

Related Service Information Under 

1 CFR Part 51 

We reviewed Gulfstream G300 

Customer Bulletin Number 243; 

Gulfstream G350 Customer Bulletin 

Number 198; Gulfstream G400 Customer 

Bulletin Number 243; Gulfstream G450 

Customer Bulletin Number 198; and 

Gulfstream IV Customer Bulletin 

Number 243; all dated January 25, 2018. 

For the applicable airplanes, the service 

information describes procedures for 

inspecting the composite panels of the 

forward and aft pressure bulkhead for 

damage and repairing any damage 

found. 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. 

Other Related Service Information 

We also reviewed ASC No. 416A, 

dated September 29, 2000, which 

contains instructions for changing the 

maintenance program for Model G–IV 

airplanes from the airplane’s existing 

program to the MSG–3 maintenance 

program. 


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Federal Register / Vol. 83, No. 145 / Friday, July 27, 2018 / Proposed Rules 35569 

FAA’s Determination 

We are proposing this AD because we 

evaluated all the relevant information 

and determined the unsafe condition 

described previously is likely to exist or 

develop in other products of the same 

type design. 

Proposed AD Requirements 

This proposed AD would require 

accomplishing the actions specified in 

the service information described 

previously. 

Costs of Compliance 

We estimate that this proposed AD 

affects 709 airplanes of U.S. registry. 

We estimate the following costs to 

comply with this proposed AD: 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

Inspection ......................... 18 work-hours × $85 per hour = $1,530 .................... Not applicable .................. $1,530 $1,084,770 

The extent of damage found during 

the proposed inspection may vary from 

airplane to airplane. We have no way of 

determining the number of airplanes 

that might need repairs or the cost of 

such repairs for each airplane. 

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, 

balloons, airships, domestic business jet 

transport airplanes, and associated 

appliances 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 

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 airworthiness 

directive (AD): 

Gulfstream Aerospace Corporation: Docket 

No. FAA–2018–0689; Product Identifier 

2018–CE–016–AD. 

(a) Comments Due Date 

We must receive comments by September 

10, 2018. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to the following 

Gulfstream Aerospace Corporation airplanes, 

certificated in any category: 

(1) Model G–IV: Serial numbers (S/Ns) 

1000 through 1399 that are maintained in 

accordance with the Maintenance Steering 

Group (MSG–3) maintenance program by 

complying with Aircraft Service Change 

(ASC) 416A; and S/Ns 1400 through 1535. 

(2) Model GIV–X: S/Ns 4001 through 4004. 

Note 1 to paragraph (c) of this AD: Model 

G–IV airplanes are also referred to by the 

marketing designations G300 and G400. 

Model GIV–X airplanes are also referred to by 

the marketing designations G350 and G450. 

(d) Subject 

Joint Aircraft System Component (JASC)/ 

Air Transport Association (ATA) of America 

Code 53; fuselage. 

(e) Unsafe Condition 

This AD was prompted by reports of 

disbonding and surface cracking of the 

composite aft pressure bulkhead. We are 

issuing this AD to detect and address damage 

of the composite forward and aft pressure 

bulkhead. The unsafe condition, if not 

addressed, could result in structural failure 

of the bulkhead and loss of cabin pressure. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Inspection 

Within 12 months after the effective date 

of this AD, visually and tap inspect the 

forward and aft surfaces of the pressure 

bulkhead composite panels following the 

Accomplishment Instructions of the service 

information listed in paragraphs (g)(1) 

through (5) of this AD, as applicable to your 

model airplane. 

(1) Gulfstream G300 Customer Bulletin 

Number 243, dated January 25, 2018; 

(2) Gulfstream G350 Customer Bulletin 

Number 198, dated January 25, 2018; 

(3) Gulfstream G400 Customer Bulletin 

Number 243, dated January 25, 2018; 

(4) Gulfstream G450 Customer Bulletin 

Number 198, dated January 25, 2018; 

(5) Gulfstream IV Customer Bulletin 

Number 243, dated January 25, 2018. 


amozie on DSK3GDR082PROD with PROPOSALS1
35570 Federal Register / Vol. 83, No. 145 / Friday, July 27, 2018 / Proposed Rules 

(h) Repairs 

If any damage is found during the 

inspections required by this AD, before 

further flight, replace or repair the pressure 

bulkhead composite panels in accordance 

with FAA-approved procedures. 

(i) Special Flight Permit 

A special flight permit may be issued per 

14 CFR 21.197 and 21.199 to operate the 

airplane to a facility to perform the 

inspection required by paragraph (g) of this 

AD. If damage is found during the inspection 

required by paragraph (g) of this AD, a 

special flight permit may be issued per 14 

CFR 21.197 and 21.199 to operate the 

airplane to a location for repair, provided the 

aircraft is unpressurized. 

(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 

certification office, send it to the attention of 

the person identified in paragraph (k)(1) 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 

paragraphs (j)(3)(i) and (ii) 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 William O. Herderich, Aerospace 

Engineer, Atlanta ACO Branch, FAA, 1701 

Columbia Avenue, College Park, Georgia 

30337; phone: (404) 474–5547; fax: (404) 

474–5605; email: william.o.herderich@

faa.gov. 

(2) For service information identified in 

this AD, contact Gulfstream Aerospace 

Corporation, P.O. Box 2206, Savannah, 

Georgia 31402–2206; telephone: (800) 810– 

4853; fax 912–965–3520; email: pubs@

gulfstream.com; internet: http://

www.gulfstream.com/product_support/ 

technical_pubs/pubs/index.htm. You may 

view this 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 July 20, 

2018. 

Pat Mullen, 

Aircraft Certification Service, Acting Deputy 

Director, Policy & Innovation Division, AIR– 

601. 

[FR Doc. 2018–15964 Filed 7–26–18; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2018–0370; Airspace 

Docket No. 18–AGL–11] 

RIN 2120–AA66 

Proposed Amendment of Class E 

Airspace; Wooster, OH 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: This action proposes to 

amend the Class E airspace extending 

upward from 700 feet above the surface 

at Wayne County Airport, Wooster, OH. 

The FAA is proposing this action as a 

result of an airspace review caused by 

the decommissioning of the Tiverton 

VHF omnidirectional range (VOR) 

navigation aid as part of the VOR 

Minimum Operational Network (MON) 

Program. The geographic coordinates of 

the airport would also be updated to 

coincide with the FAA’s aeronautical 

database. 

DATES: Comments must be received on 

or before September 10, 2018. 

ADDRESSES: Send comments on this 

proposal to the U.S. Department of 

Transportation, Docket Operations, 

West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE, 

Washington, DC 20590; telephone (202) 

366–9826, or (800) 647–5527. You must 

identify FAA Docket No. FAA–2018– 

0370; Airspace Docket No. 18–AGL–11, 

at the beginning of your comments. You 

may also submit comments through the 

internet at http://www.regulations.gov. 

You may review the public docket 

containing the proposal, any comments 

received, and any final disposition in 

person in the Dockets Office between 

9:00 a.m. and 5:00 p.m., Monday 

through Friday, except Federal holidays. 

FAA Order 7400.11B, Airspace 

Designations and Reporting Points, and 

subsequent amendments can be viewed 

online at http://www.faa.gov/air_traffic/ 

publications/. For further information, 

you can contact the Airspace Policy 

Group, Federal Aviation 

Administration, 800 Independence 

Avenue SW, Washington, DC 20591; 

telephone: (202) 267–8783. The Order is 

also available for inspection at the 

National Archives and Records 

Administration (NARA). For 

information on the availability of FAA 

Order 7400.11B at NARA, call (202) 

741–6030, or go to http://

www.archives.gov/federal-register/cfr/ 

ibr-locations.html. 

FAA Order 7400.11, Airspace 

Designations and Reporting Points, is 

published yearly and effective on 

September 15. 

FOR FURTHER INFORMATION CONTACT: 

Jeffrey Claypool, Federal Aviation 

Administration, Operations Support 

Group, Central Service Center, 10101 

Hillwood Parkway, Fort Worth, TX 

76177; telephone (817) 222–5711. 

SUPPLEMENTARY INFORMATION: 

Authority for This Rulemaking 

The FAA’s authority to issue rules 

regarding aviation safety is found in 

Title 49 of the United States Code. 

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. This rulemaking is 

promulgated under the authority 

described in Subtitle VII, Part A, 

Subpart I, Section 40103. Under that 

section, the FAA is charged with 

prescribing regulations to assign the use 

of airspace necessary to ensure the 

safety of aircraft and the efficient use of 

airspace. This regulation is within the 

scope of that authority as it would 

amend Class E airspace extending 

upward from 700 feet above the surface 

at Wayne County Airport, Wooster, OH, 

to support instrument flight rule 

operations at this airport. 

Comments Invited 

Interested parties are invited to 

participate in this proposed rulemaking 

by submitting such written data, views, 

or arguments, as they may desire. 

Comments that provide the factual basis 

supporting the views and suggestions 

presented are particularly helpful in 

developing reasoned regulatory 

decisions on the proposal. Comments 

are specifically invited on the overall 

regulatory, aeronautical, economic, 

environmental, and energy-related 

aspects of the proposal. 

Communications should identify both 

docket numbers and be submitted in 

triplicate to the address listed above. 

Commenters wishing the FAA to 

acknowledge receipt of their comments 

on this notice must submit with those 

comments a self-addressed, stamped 


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