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

70892 

Vol. 78, No. 229 

Wednesday, November 27, 2013 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2013–0975; Directorate 

Identifier 2013–NM–082–AD] 

RIN 2120–AA64 

Airworthiness Directives; ATR—GIE 

Avions de Transport Re ́gional 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to supersede 

airworthiness directive (AD) 2009–18– 

18, which applies to certain ATR—GIE 

Avions de Transport Re ́gional Model 

ATR42 and ATR72 airplanes. AD 2009– 

18–18 requires repetitive inspections for 

damage and absence of repair of the 

cockpit forward side windows, and 

replacement if necessary. Since we 

issued that AD, we received reports of 

a cockpit forward right-hand side blow 

out during flight. This proposed AD 

would require repetitive detailed 

inspections of the cockpit forward side 

window for damage and discrepancies; 

replacement if necessary. Replacing 

both cockpit forward side windows with 

approved windows would terminate the 

repetitive detailed inspections. This 

proposed AD would also expand the 

applicability of AD 2009–18–18. The 

actions required by AD 2009–18–18 are 

not required by this AD. We are 

proposing this AD to detect and correct 

air/water leakage of the cockpit forward 

side window, which could lead to rapid 

cabin decompression, resulting in loss 

of control of the airplane. 

DATES: We must receive comments on 

this proposed AD by January 13, 2014. 

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, between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For service information identified in 

this proposed AD, contact PPG 

Aerospace, 12780 San Fernando Road, 

Sylmar, California 91342; telephone 

818–362–6711; fax 818–362–0603; 

Internet http://corporateportal.ppg.com/ 

na/aerospace. You may view this 

referenced service information at the 

FAA, Transport Airplane Directorate, 

1601 Lind Avenue SW., Renton, WA. 

For information on the availability of 

this material at the FAA, call 425–227– 

1221. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http://

www.regulations.gov; 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 

regulatory 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. 

FOR FURTHER INFORMATION CONTACT: Tom 

Rodriguez, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA 

1601 Lind Avenue SW., Renton, 

Washington 98057–3356; telephone 

(425) 227–1137; fax (425) 227–1149. 

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–2013–0975; Directorate Identifier 

2013–NM–082–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 based on 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 proposed AD. 

Discussion 

On August 26, 2009, we issued AD 

2009–18–18, Amendment 39–16014 (74 

FR 46336, September 9, 2009). That AD 

required actions intended to address an 

unsafe condition on certain ATR Model 

ATR42 and ATR72 airplanes. 

Since we issued AD 2009–18–18, 

Amendment 39–16014 (74 FR 46336, 

September 9, 2009), we received reports 

of a cockpit forward right-hand side 

blow out during flight. We also received 

reports of an air/water leak, which is an 

indication that structural components 

within the window have begun to 

deteriorate. The European Aviation 

Safety Agency (EASA), which is the 

Technical Agent for the Member States 

of the European Community, has issued 

EASA Airworthiness Directive 2013– 

0087, dated April 9, 2013 (referred to 

after this as the Mandatory Continuing 

Airworthiness Information, or ‘‘the 

MCAI’’), to correct an unsafe condition 

for the specified products. The MCAI 

states: 

In 2009, a Left-Hand (LH) forward side 

glass window of an ATR 72–212 aeroplane 

blew out while performing a ground pressure 

test. The investigation results revealed some 

anomalies on the forward side window at the 

level of the z-bar on the windows external 

side and at the level of the inner retainer on 

the windows internal side. Such anomalies 

are considered as precursors of this kind of 

failure. Air or water leakages between the zbar and the outer glass ply, or between the 

inner retainer and inner glass ply indicate the 

presence of deteriorating structural 

components in the window. 

Neither ATR nor PPG Aerospace have 

authorized repairs on the window z-bar or zbar sealant. Any attempted repairs on these 

forward side window z-bars and/or z-bar 

sealants could lead to a similar event as 

described above. 

In-flight loss of a forward side window 

would cause rapid cabin decompression, 

possibly resulting in flight crew 

incapacitation and consequent reduced 

control, or loss of control of the aeroplane, 

and cause the risk of injury to persons on the 

ground. The loss of a forward side window 

while the aeroplane is on the ground, due to 


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differential cabin pressure, could result in 

injury to aeroplane occupants or to persons 

outside the aeroplane. 

To address this potential unsafe condition, 

EASA issued AD 2009–0159–E [dated July 

20, 2009] [(http://ad.easa.europa.eu/blob/

easa_ad_2009_0159E_superseded.pdf/EAD_

2009-0159-E_1)] [which corresponds to FAA 

AD 2009–18–18, Amendment 39–116014 (74 

FR 46336, September 9, 2009)] to require 

repetitive inspections of the affected LH and 

right-hand (RH) cockpit forward side glass 

windows and, in case discrepancies are 

found as defined in PPG Aerospace Service 

Bulletin (SB) NP–158862–001, the 

replacement of the window(s). 

Since that [EASA] AD was issued, a 

cockpit forward RH-side window blew out 

during flight on an ATR72–212 aeroplane. 

Degradation of the window is considered to 

have been the cause for this failure. 

* * * [T]his [EASA] AD * * * requires to 

accomplish the [detailed] inspections in 

accordance with the instructions of Revision 

1 of PPG Aerospace SB NP–158862–001, 

which provides more information on 

examples of [damaged and] discrepant 

conditions. 

This [EASA] AD also requires the removal 

from service of the affected Part Number (P/ 

N) NP158862–1 and P/N NP158862–2 

cockpit forward side windows, which 

constitutes terminating action for the 

repetitive inspections required by this AD. 

The corrective action is replacing 

windows, if damage and discrepancies 

are found. Damage and discrepancies to 

detect during the inspection include zbar existing sealant repair, z-bar 

deformation, separation or gap in the 

sealant bond between the retainer and 

inner glass ply, z-bar deformation and 

retainer gap at same location, or z-bar 

deformation and retainer gap in window 

corner. 

You may examine the MCAI in the 

AD docket on the Internet at http://

www.regulations.gov by searching for 

and locating it in Docket No. FAA– 

2013–0975. 

Relevant Service Information 

PPG Aerospace has issued Service 

Bulletin NP–158862–001, Revision 1, 

dated January 10, 2013. The actions 

described in this service information are 

intended to correct the unsafe condition 

identified in the MCAI. 

FAA’s Determination and Requirements 

of This 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 the State of 

Design Authority, we have been notified 

of the unsafe condition described in the 

MCAI and service information 

referenced above. We are proposing this 

AD because we evaluated all pertinent 

information and determined an unsafe 

condition exists and is likely to exist or 

develop on other products of the same 

type design. 

Differences Between This AD and the 

MCAI or Service Information 

Although EASA AD 2013–0087, dated 

April 9, 2013, specifies to replace 

affected window(s) in accordance with 

the instructions of ATR42/72 Job 

Instruction Card airplane maintenance 

manual (AMM) JIC 56–12–00 RAI 

10000, this proposed AD would require 

replacement of affected window(s) using 

a method approved by the Manager, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA; or 

the EASA (or its delegated agent, or the 

Design Approval Holder with EASA 

design organization approval). 

While paragraph (6) of EASA AD 

2013–0087, dated April 9, 2013, 

specifies to replace each PPG Aerospace 

P/N NP–158862–1 LH and P/N NP– 

158862–2 RH cockpit forward side 

window with another approved cockpit 

forward side window, this proposed AD 

would require that replacement 

windows and procedures for their 

installation be approved by the 

Manager, International Branch, ANM– 

116, Transport Airplane Directorate, 

FAA; or the EASA (or its delegated 

agent, or the Design Approval Holder 

with EASA design organization 

approval). 

Costs of Compliance 

Based on the service information, we 

estimate that this proposed AD would 

affect about 43 products 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 

Detailed Inspection ........ 1 work-hour × $85 per hour = $85 per inspection 

cycle.

$0 $85 per inspection cycle ........ $3,655 per inspection 

cycle. 

We estimate the following costs to do 

any necessary replacements that would 

be required based on the results of the 

proposed inspection. We have no way of 

determining the number of aircraft that 

might need this replacement. 

ON-CONDITION COSTS

Action Labor cost Parts cost Cost per 

product 

Replacement ............................ 4 work-hours × $85 per hour = $340 ................................................................ $18,546 $18,886 

Where the service information lists 

required parts costs that are covered 

under warranty, we have assumed that 

there will be no charge for these costs. 

As we do not control warranty coverage 

for affected parties, some parties may 

incur costs higher than estimated here. 

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 


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70894 Federal Register / Vol. 78, No. 229 / Wednesday, November 27, 2013 / Proposed Rules 

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 proposed 

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. 

We prepared a regulatory evaluation 

of the estimated costs to comply with 

this proposed AD and placed it in the 

AD docket. 

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 airworthiness directive (AD) 

2009–18–18, Amendment 39–16014 (74 

FR 46336, September 9, 2009), and 

adding the following new AD: 

ATR—GIE Avions de Transport Re ́gional: 

Docket No. FAA–2013–0975; Directorate 

Identifier 2013–NM–082–AD. 

(a) Comments Due Date 

We must receive comments by January 13, 

2014. 

(b) Affected ADs 

This AD supersedes AD 2009–18–18, 

Amendment 39–16014 (74 FR 46336, 

September 9, 2009). 

(c) Applicability 

This AD applies to all ATR—GIE Avions 

de Transport Re ́gional Model ATR42–200, 

–300, –320, and –500 airplanes; and Model 

ATR72–101, –201, –102, –202, –211, –212, 

and –212A airplanes; certificated in any 

category; all manufacturer serial numbers. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 56, Windows. 

(e) Reason 

This AD was prompted by reports of a 

cockpit forward right-hand side blow out 

during flight. We are issuing this AD to 

detect and correct air/water leakage of the 

cockpit forward side window, which could 

lead to rapid cabin decompression, resulting 

in loss of control of the airplane. 

(f) Compliance 

You are responsible for having the actions 

required by this AD performed within the 

compliance times specified, unless the 

actions have already been done. 

(g) Inspections 

For airplanes that are equipped with any 

PPG Aerospace cockpit forward side glass 

window having part number (P/N) 

NP158862–1 or P/N NP158862–2: At the 

applicable time specified in paragraph (g)(1) 

or (g)(2) of this AD, do a detailed inspection 

of the cockpit forward side window to detect 

any damage and discrepancies (z-bar existing 

sealant repair, z-bar deformation, separation 

or gap in the sealant bond between the 

retainer and inner glass ply, z-bar 

deformation and retainer gap at same 

location, or z-bar deformation and retainer 

gap in window corner), in accordance with 

the Accomplishment Instructions of PPG 

Aerospace Service Bulletin NP–158862–001 

Revision 1, dated January 10, 2013. Repeat 

the inspection thereafter at intervals not to 

exceed 550 flight hours or 750 flight cycles, 

whichever occurs first, except as required by 

paragraph (h) of this AD. 

(1) For windows for which the total flight 

cycles can be established, inspect within 

2,000 flight cycles since first installation of 

the cockpit forward side window, or within 

10 days after the effective date of this AD, 

whichever occurs later. 

(2) For windows for which the total flight 

cycles cannot be established, inspect before 

the accumulation of 2,000 total flight cycles 

on the airplane, or within 10 days after the 

effective date of this AD, whichever occurs 

later. 

(h) Conditions for Reduced Interval 

If any of the conditions specified in 

paragraphs (h)(1), (h)(2), and (h)(3) of this AD 

is found during any inspection required by 

paragraph (g) of this AD, reduce the interval 

of each subsequent inspection as required by 

paragraph (g) of this AD to 50 flight cycles 

or 7 days, whichever occurs later. 

(1) Sealant separation between the Z-bar 

and the outer glass ply, with depth less than 

4 millimeter (mm) (0.160 inches (in)). 

(2) Sealant separation between the inboard 

retainer and inner glass ply, with depth less 

than 7.5 mm (0.300 in) and cumulative 

length less than 300 mm (12.000 in). 

(3) Window showing both sealant 

separation between the Z-bar and the outer 

ply, and separation between inboard retainer 

and inner glass ply, common to the same 

hole location with a length less than 225 mm 

(8.860 in), and not covering the entire arc of 

a window corner. 

(i) Replacement 

If, during any inspection required by this 

AD, any damage or discrepant condition as 

defined in PPG Aerospace Service Bulletin 

NP–158862–001 Revision 1, dated January 

10, 2013 (z-bar existing sealant repair, z-bar 

deformation, separation or gap in the sealant 

bond between the retainer and inner glass 

ply, z-bar deformation and retainer gap at 

same location, or z-bar deformation and 

retainer gap in window corner) is found, 

except for the conditions specified in 

paragraph (h)(1), (h)(2), or (h)(3) of this AD, 

before further pressurized flight or within 10 

days after the inspection, whichever occurs 

first, replace the affected window(s) using a 

method approved by the Manager, 

International Branch, ANM–116, Transport 

Airplane Directorate, FAA; or the European 

Aviation Safety Agency (EASA) (or its 

delegated agent, or the Design Approval 

Holder with EASA design organization 

approval). For a replacement method to be 

approved, the repair must specifically refer to 

this AD. 

Note 1 to paragraph (i) of this AD: 

Guidance for unpressurized flight conditions 

and limitations can be found in ATR Master 

Minimum Equipment List (MMEL) item 21– 

30–1 and Dispatch Deviation Guide (DDG) 

item 21–30–1.(4). 

Note 2 to paragraph (i) of this AD: 

Guidance for the replacement required by 


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Federal Register / Vol. 78, No. 229 / Wednesday, November 27, 2013 / Proposed Rules 70895 

paragraph (i) of this AD can be found in 

ATR42/72 Job Instruction Card airplane 

maintenance manual (AMM) JIC 56–12–00 

RAI 10000. 

(j) Reporting Requirement 

Submit a report of the findings of the 

inspection required by paragraph (g) of this 

AD to ATR techdesk, 1 ALLEE PIERRE 

NADOT, 31712 BLAGNAC CEDEX, France, 

phone: +33 (0)5 62 21 62 21; fax: +33 (0)5 62 

21 67 18; email: techdesk@atr.fr; and PPG 

Aerospace, ATTN: Andrew Troller, P.O. Box 

2200, Huntsville, AL 35811 USA, phone: 1– 

256–859–2500 ext. 2544; fax 1–256–859– 

8155; email: atroller@ppg.com; at the 

applicable time specified in paragraph (j)(1) 

or (j)(2) of this AD. The report must include 

the information specified in PPG Aerospace 

Service Bulletin NP–158862–001, Revision 1, 

dated January 10, 2013. 

(1) If the inspection was done on or after 

the effective date of this AD: Submit the 

report within 30 days after the inspection. 

(2) If the inspection was done before the 

effective date of this AD: Submit the report 

within 30 days after the effective date of this 

AD. 

(k) Window Replacement Provisions 

Replacing only the affected window, as 

required by paragraph (i) of this AD, with a 

cockpit forward side window having P/N 

NP158862–1 left-hand (LH) or P/N 

NP158862–2 right-hand (RH), as applicable, 

is not terminating action for the repetitive 

inspections required by this AD. 

(l) Terminating Action 

Within 72 months after the effective date 

of this AD, replace each PPG Aerospace P/ 

N NP–158862–1 LH and P/N NP–158862–2 

RH cockpit forward side window with an 

approved cockpit forward side window. 

Replacing both PPG Aerospace P/N 

NP158862–1 LH and P/N NP158862–2 RH 

cockpit forward side windows with approved 

windows is a terminating action for the 

repetitive inspections required by this AD. 

Replacement windows and procedures for 

their installation must be approved by the 

Manager, International Branch, ANM–116, 

Transport Airplane Directorate, FAA; or the 

EASA (or its delegated agent, by the Design 

Approval Holder with EASA design 

organization approval). 

(m) Parts Installation Prohibition 

As of 72 months after the effective date of 

this AD, no person may install any PPG 

Aerospace cockpit forward side window 

having P/N NP158862–1 LH or P/N 

NP158862–2 RH on any airplane. 

(n) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, International 

Branch, ANM–116, 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 International Branch, send it to ATTN: 

Tom Rodriguez, Aerospace Engineer, 

International Branch, ANM–116, Transport 

Airplane Directorate, FAA 1601 Lind Avenue 

SW., Renton, Washington 98057–3356; 

telephone (425) 227–1137; fax (425) 227– 

1149. Information may be emailed to: 9- 

ANM-116-AMOC-REQUESTS@faa.gov. 

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. The AMOC 

approval letter must specifically reference 

this AD. 

(2) Airworthy Product: For any requirement 

in this AD to obtain corrective actions from 

a manufacturer, use these actions if they are 

FAA-approved. Corrective actions are 

considered FAA-approved if they were 

approved by the State of Design Authority (or 

its delegated agent, or the Design Approval 

Holder with a State of Design Authority’s 

design organization approval). For a repair 

method to be approved, the repair approval 

must specifically refer to this AD. You are 

required to ensure the product is airworthy 

before it is returned to service. 

(3) Reporting Requirements: 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. 

(o) Related Information 

(1) Refer to Mandatory Continuing 

Airworthiness Information EASA 

Airworthiness Directive 2013–0087, dated 

April 9, 2013, for related information. This 

MCAI may be found in the AD docket on the 

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

(2) For service information identified in 

this AD, contact PPG Aerospace, 12780 San 

Fernando Road, Sylmar, California 91342; 

telephone 818–362–6711; fax 818–362–0603; 

Internet http://corporateportal.ppg.com/na/

aerospace. You may view this service 

information at the FAA, Transport Airplane 

Directorate, 1601 Lind Avenue SW., Renton, 

WA. For information on the availability of 

this material at the FAA, call 425–227–1221. 

Issued in Renton, Washington, on 

November 15, 2013. 

John P. Piccola, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2013–28445 Filed 11–26–13; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2013–0860; Airspace 

Docket No. 12–ASO–36] 

RIN 2120–AA66 

Proposed Establishment and 

Modification of Area Navigation 

(RNAV) Routes; Atlanta, GA 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: This action proposes to 

establish 14 RNAV Q-routes and modify 

4 Q-routes in support of the 

Optimization of Airspace and 

Procedures in a Metroplex (OAPM) 

project. This proposed action is 

intended to enhance air traffic flow in 

the vicinity of the Atlanta, GA (ATL) 

and Charlotte, NC (CLT) Metroplex 

areas. 

DATES: Comments must be received on 

or before January 13, 2014. 

ADDRESSES: Send comments on this 

proposal to the U.S. Department of 

Transportation, Docket Operations, M– 

30, 1200 New Jersey Avenue SE., West 

Building Ground Floor, Room W12–140, 

Washington, DC 20590–0001; telephone: 

(202) 366–9826. You must identify FAA 

Docket No. FAA–2013–0860 and 

Airspace Docket No. 12–ASO–36 at the 

beginning of your comments. You may 

also submit comments through the 

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

FOR FURTHER INFORMATION CONTACT: Paul 

Gallant, Airspace Policy and ATC 

Procedures Group, Office of Airspace 

Services, Federal Aviation 

Administration, 800 Independence 

Avenue SW., Washington, DC 20591; 

telephone: (202) 267–8783. 

SUPPLEMENTARY INFORMATION:

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 (FAA Docket No. FAA– 


emcdonald on DSK67QTVN1PROD with PROPOSALS