Federal Register / Vol. 78, No. 69 / Wednesday, April 10, 2013 / Proposed Rules 21279 

Information may be emailed to: 9-ANMSeattle-ACO-AMOC-Requests@faa.gov. 

(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) An AMOC that provides an acceptable 

level of safety may be used for any repair 

required by this AD if it is approved by the 

Boeing Commercial Airplanes Organization 

Designation Authorization (ODA) that has 

been authorized by the Manager, Seattle 

ACO, to make those findings. For a repair 

method to be approved, the repair must meet 

the certification basis of the airplane, and the 

approval must specifically refer to this AD. 

(l) Related Information 

(1) For more information about this AD, 

contact Berhane Alazar, Aerospace Engineer, 

Airframe Branch, ANM–120S, FAA, Seattle 

Aircraft Certification Office, 1601 Lind 

Avenue SW., Renton, Washington 98057– 

3356; phone: 425–917–6577; fax: 425–917– 

6590; email: berhane.alazar@faa.gov. 

(2) For Boeing service information 

identified in this AD, contact Boeing 

Commercial Airplanes, Attention: Data & 

Services Management, P.O. Box 3707, MC 

2H–65, Seattle, WA 98124–2207; telephone 

206–544–5000, extension 1; fax 206–766– 

5680; Internet https:// 

www.myboeingfleet.com. You may also 

review copies of the referenced service 

information at the FAA, Transport Airplane 

Directorate, 1601 Lind Avenue SW., Renton, 

Washington. For information on the 

availability of this material at the FAA, call 

425–227–1221. 

Issued in Renton, Washington, on March 

28, 2013. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2013–08342 Filed 4–9–13; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2013–0302; Directorate 

Identifier 2013–NM–019–AD] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to supersede an 

existing airworthiness directive (AD) 

that applies to certain The Boeing 

Company Model 737–100 and –200 

series airplanes. The existing AD 

currently requires replacement of 

certain underwing fuel tank access 

covers with stronger, fire-resistant 

covers. Since we issued that AD, we 

received reports of standard access 

doors installed where impact resistant 

access doors are required and reports of 

impact resistant doors without stencils. 

This proposed AD would require 

inspecting fuel tank access doors to 

determine that impact resistant access 

doors are installed in the correct 

locations, inspecting application of 

stencils and index markers of impact 

resistant access doors, corrective actions 

if necessary, revising the maintenance 

program, and adding airplanes to the 

applicability. We are proposing this AD 

to prevent foreign object penetration of 

the wing tank, which could lead to a 

fuel leak near ignition sources (engine, 

hot brakes), consequently leading to a 

fuel-fed fire. 

DATES: We must receive comments on 

this proposed AD by May 28, 2013. 

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 proposed AD, contact Boeing 

Commercial Airplanes, Attention: Data 

& Services Management, P. O. Box 3707, 

MC 2H–65, Seattle, WA 98124–2207; 

telephone 206–544–5000, extension 1; 

fax 206–766–5680; Internet https:// 

www.myboeingfleet.com. You may 

review copies of the referenced service 

information at the FAA, Transport 

Airplane Directorate, 1601 Lind Avenue 

SW., Renton, Washington. 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 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 

(phone: 800–647–5527) is in the 

ADDRESSES section. Comments will be 

available in the AD docket shortly after 

receipt. 

FOR FURTHER INFORMATION CONTACT: 

Suzanne Lucier, Aerospace Engineer, 

Propulsion Branch, ANM–140S, FAA, 

Seattle Aircraft Certification Office, 

1601 Lind Avenue SW., Renton, 

Washington 98057–3356; phone: 425– 

917–6438; fax: 425–917–6590; email: 

suzanne.lucier@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–2013–0302; Directorate Identifier 

2013–NM–019–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:// 

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 December 29, 1986, we issued AD 

87–02–07, Amendment 39–5506 (Docket 

No. 86–NM–175–AD; 52 FR 518–01, 

January 7, 1987), for certain Model 737– 

100 and 737–200 series airplanes. That 

AD requires replacement of certain 

underwing fuel tank access covers with 

stronger, fire-resistant covers. That AD 

resulted from an incident of cover 

penetration, which resulted in a fire and 

total loss of the airplane. We issued that 

AD to prevent foreign object penetration 

of the wing tank, which could lead to a 

fuel leak near ignition sources (engine, 

hot brakes), consequently leading to a 

fuel-fed fire. 

Actions Since Existing AD Was Issued 

Since we issued AD 87–02–07, 

Amendment 39–5506 (Docket No. 86– 

NM–175–AD; 52 FR 518–01, January 7, 

1987), we received reports of standard 

access doors installed where impact 

resistant access doors are required and 

reports of impact resistant doors 

without stencils. 

Relevant Service Information 

We reviewed Boeing Service Bulletin 

737–28–1286, dated January 10, 2012. 

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21280 Federal Register / Vol. 78, No. 69 / Wednesday, April 10, 2013 / Proposed Rules 

The service information describes 

procedures for inspecting stencils and 

index markers of impact resistance 

access doors and corrective action if 

necessary. For information on the 

procedures and compliance times, see 

this service information at http:// 

www.regulations.gov by searching for 

Docket No. FAA–2013–0302. 

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 these same 

type designs. 

Proposed AD Requirements 

This proposed AD would retain none 

of the requirements of AD 87–02–07, 

Amendment 39–5506 (Docket No. 86– 

NM–175–AD; 52 FR 518–01, January 7, 

1987). Since that AD was issued, the 

FAA issued section 121.316 of the 

Federal Aviation Regulations (14 CFR 

121.316) requiring that each turbine 

powered transport category airplane 

meet the requirements of section 

25.963(e) of the Federal Aviation 

Regulations (14 CFR 25.963(e)). Section 

25.963(e) outlines the certification 

requirements for fuel tank access covers 

on turbine powered transport category 

airplanes. 

This proposed AD would require 

inspecting fuel tank access doors to 

determine that impact resistant access 

doors are installed in the correct 

locations, inspecting application of 

stencils and index markers of impact 

resistant access doors, corrective actions 

if necessary, and revising the 

maintenance program. This proposed 

AD also would add Model 737–200C 

and 737–300 series airplanes to the 

applicability, since these models are 

similar in design to Model 737–100 and 

–200 series airplanes. 

This proposed AD requires revisions 

to certain operator maintenance 

documents to include a new critical 

design configuration control limitation 

(CDCCL). Compliance with CDCCLs is 

required by section 91.403(c) of the 

Federal Aviation Regulations (14 CFR 

91.403(c)). For airplanes that have been 

previously modified, altered, or repaired 

in the areas addressed by this proposed 

AD, the operator might not be able to 

accomplish the actions described in the 

revisions. In this situation, to comply 

with 14 CFR 91.403(c), the operator 

must request approval for an alternative 

method of compliance according to the 

procedures specified in paragraph (j) of 

this proposed AD. The request should 

include a description of changes to the 

required actions that will ensure the 

continued damage tolerance of the 

affected structure. 

The phrase ‘‘related investigative 

actions’’ might be used in this proposed 

AD. ‘‘Related investigative actions’’ are 

follow-on actions that: (1) are related to 

the primary actions, and (2) are actions 

that further investigate the nature of any 

condition found. Related investigative 

actions in an AD could include, for 

example, inspections. 

In addition, the phrase ‘‘corrective 

actions’’ might be used in this proposed 

AD. ‘‘Corrective actions’’ are actions 

that correct or address any condition 

found. Corrective actions in an AD 

could include, for example, repairs. 

Costs of Compliance 

We estimate that this proposed AD 

affects 128 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 

Inspect, replace, and apply stencil and index 

marker.

8 work-hours × $85 per hour = $680 ................. $0 $85 $87,040 

Revise airworthiness limitations .......................... 1 work-hour × $85 per hour = $85 ..................... 0 85 10,880 

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 have 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 that the 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 

removing airworthiness directive (AD) 

87–02–07, Amendment 39–5506 (Docket 

No. 86–NM–175–AD; 52 FR 518–01, 

January 7, 1987), and adding the 

following new AD: 

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Federal Register / Vol. 78, No. 69 / Wednesday, April 10, 2013 / Proposed Rules 21281 

The Boeing Company: Docket No. FAA– 

2013–0302; Directorate Identifier 2013– 

NM–019–AD. 

(a) Comments Due Date 

The FAA must receive comments on this 

AD action by May 28, 2013. 

(b) Affected ADs 

This AD supersedes AD 87–02–07, 

Amendment 39–5506 (Docket No. 86–NM– 

175–AD; 52 FR 518–01, January 7, 1987). 

(c) Applicability 

This AD applies to The Boeing Company 

Model 737–100, –200, –200C, and –300 series 

airplanes, certified in any category, as 

identified in Boeing Service Bulletin 737–28– 

1286, dated January 10, 2012. 

(d) Subject 

Joint Aircraft System Component (JASC)/ 

Air Transport Association (ATA) of America 

Code 28, Fuel. 

(e) Unsafe Condition 

This AD was prompted by reports of 

standard access doors installed where impact 

resistant access doors are required and 

reports of impact resistant doors without 

stencils. We are issuing this AD to prevent 

foreign object penetration of the wing tank, 

which could lead to a fuel leak near ignition 

sources (engine, hot brakes), consequently 

leading to a fuel-fed fire. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Inspection and Corrective Actions 

Within 72 months after the effective date 

of this AD, do a general visual inspection of 

the left-wing and right-wing fuel tank access 

doors to determine that impact resistant 

access doors are installed in the correct 

locations, and an inspection for proper 

application of stencils and index markers of 

impact resistance access doors; and do all 

applicable corrective actions; in accordance 

with the Accomplishment Instructions of 

Boeing Service Bulletin 737–28–1286, dated 

January 10, 2012. Do all applicable corrective 

actions before further flight. 

(h) Maintenance Program Revision 

Within 60 days after the effective date of 

this AD, revise the maintenance program to 

incorporate airworthiness limitation (AWL) 

57–AWL–01, as specified in Section C, 

Airworthiness Limitations (AWLs)—Fuel 

Systems, of the Boeing 737–100/200/200C/ 

300/400/500 Airworthiness Limitations 

(AWLs) and Certification Maintenance 

Requirements (CMRs), D6–38278–CMR, 

dated August 2012. 

(i) No Alternative Critical Design 

Configuration Control Limitations (CDCCLs) 

After accomplishing the revision required 

by paragraph (h) of this AD, no alternative 

CDCCLs may be used unless the CDCCLs are 

approved as an alternative method of 

compliance (AMOC) in accordance with the 

procedures specified in paragraph (j) of this 

AD. 

(j) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, Seattle Aircraft 

Certification Office (ACO), 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, send it to the 

attention of the person identified in the 

Related Information section of this AD. 

Information may be emailed to: 9-ANMSeattle-ACO-AMOC-Requests@faa.gov. 

(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) An AMOC that provides an acceptable 

level of safety may be used for any repair 

required by this AD if it is approved by the 

Boeing Commercial Airplanes Organization 

Designation Authorization (ODA) that has 

been authorized by the Manager, Seattle ACO 

to make those findings. For a repair method 

to be approved, the repair must meet the 

certification basis of the airplane and the 

approval must specifically refer to this AD. 

(k) Related Information 

(1) For more information about this AD, 

contact Suzanne Lucier, Aerospace Engineer, 

Propulsion Branch, ANM–140S, FAA, Seattle 

Aircraft Certification Office, 1601 Lind 

Avenue SW., Renton, Washington 98057– 

3356; phone: 425–917–6438; fax: 425–917– 

6590; email: suzanne.lucier@faa.gov. 

(2) For service information identified in 

this AD, contact Boeing Commercial 

Airplanes, Attention: Data & Services 

Management, P.O. Box 3707, MC 2H–65, 

Seattle, WA 98124–2207; telephone 206– 

544–5000, extension 1; fax 206–766–5680; 

Internet https://www.myboeingfleet.com. You 

may review copies of the referenced service 

information at the FAA, Transport Airplane 

Directorate, 1601 Lind Avenue SW., Renton, 

Washington. For information on the 

availability of this material at the FAA, call 

425–227–1221. 

Issued in Renton, Washington, on March 

28, 2013. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2013–08335 Filed 4–9–13; 8:45 am] 

BILLING CODE 4910–13–P 

ENVIRONMENTAL PROTECTION 

AGENCY 

40 CFR Part 52 

[EPA–R07–OAR–2013–0208; FRL–9800–5] 

Approval and Promulgation of 

Implementation Plans; State of 

Missouri; Infrastructure SIP 

Requirements for the 1997 and 2006 

Fine Particulate Matter National 

Ambient Air Quality Standards 

AGENCY: Environmental Protection 

Agency (EPA). 

ACTION: Proposed rule. 

SUMMARY: EPA is proposing action on 

four Missouri State Implementation 

Plan (SIP) submissions. First, EPA is 

proposing to approve portions of two 

SIP submissions from the State of 

Missouri addressing the applicable 

requirements of Clean Air Act (CAA) for 

the 1997 and 2006 National Ambient 

Air Quality Standards (NAAQS) for fine 

particulate matter (PM2.5). The CAA 

requires that each state adopt and 

submit a SIP to support implementation, 

maintenance, and enforcement of each 

new or revised NAAQS promulgated by 

EPA. These SIPs are commonly referred 

to as ‘‘infrastructure’’ SIPs. The 

infrastructure requirements are designed 

to ensure that the structural components 

of each state’s air quality management 

program are adequate to meet the state’s 

responsibilities under the CAA. EPA is 

also proposing to approve two 

additional SIP submissions from 

Missouri, one addressing the Prevention 

of Significant Deterioration (PSD) 

program in Missouri, and another 

addressing the requirements applicable 

to any board or body which approves 

permits or enforcement orders of the 

CAA, both of which support 

requirements associated with 

infrastructure SIPs. 

DATES: Comments must be received on 

or before May 10, 2013. 

ADDRESSES: Submit your comments, 

identified by Docket ID No. EPA–R07– 

OAR–2013–0208, by one of the 

following methods: 

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

the on-line instructions for submitting 

comments. 

2. Email: bhesania.amy@epa.gov. 

3. Mail: Ms. Amy Bhesania, Air 

Planning and Development Branch, U.S. 

Environmental Protection Agency, 

Region 7, Air and Waste Management 

Division, 11201 Renner Boulevard, 

Lenexa, Kansas 66219. 

4. Hand Delivery or Courier: Deliver 

your comments to Ms. Amy Bhesania, 

Air Planning and Development Branch, 

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