71472 Federal Register / Vol. 76, No. 223 / Friday, November 18, 2011 / Proposed Rules 

AMOCs for this AD, if requested using the 

procedures found in 14 CFR 39.19. Send 

information to ATTN: Program Manager, 

Continuing Operational Safety, FAA, New 

York ACO, 1600 Stewart Avenue, Suite 410, 

Westbury, New York 11590; telephone (516) 

228–7300; fax (516) 794–5531. 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 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. 

Related Information 

(j) Refer to MCAI Canadian Airworthiness 

Directive CF–2011–12, dated June 6, 2011; 

Bombardier Service Bulletin 8–27–110, 

Revision C, dated May 13, 2011; and 

Bombardier Service Bulletin 84–27–53, dated 

November 26, 2010; for related information. 

Issued in Renton, Washington, on 

November 7, 2011. 

Kalene C. Yanamura, 

Acting Manager, Transport Airplane 

Directorate Aircraft Certification Service. 

[FR Doc. 2011–29798 Filed 11–17–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–1231; Directorate 

Identifier 2011–NM–088–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 adopt a new 

airworthiness directive (AD) for certain 

The Boeing Company Model 737–600, 

–700, –700C, –800, –900, and –900ER 

series airplanes. This proposed AD 

would require inspecting to detect 

damage to the upper fire seals on the 

forward edge of the thrust reverser, 

where the fire seal contacts the 12- 

o’clock engine strut, and for correct 

stiffness and vent holes, and doing 

corrective actions if necessary; and 

installing a bracket for the fire seal. This 

proposed AD was prompted by reports 

of damaged fire seals on the forward 

edge of the thrust reverser. We are 

proposing this AD to detect and correct 

damage to the fire seals, which could 

result in damage to the strut structure 

and the thrust reverser firewall. Such 

damage could significantly deteriorate 

the protection capacity of the fire 

extinguishing system and result in an 

uncontrolled fire. 

DATES: We must receive comments on 

this proposed AD by January 3, 2012. 

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 Boeing 

Commercial Airplanes, Attention: Data 

& Services Management, P.O. Box 3707, 

MC 2H–65, Seattle, Washington 98124– 

2207; telephone (206) 544–5000, 

extension 1; fax (206) 766–5680; email 

me.boecom@boeing.com; 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 

(telephone (800) 647–5527) is in the 

ADDRESSES section. Comments will be 

available in the AD docket shortly after 

receipt. 

FOR FURTHER INFORMATION CONTACT: 

Chris R. Parker, Aerospace Engineer, 

Propulsion Branch, ANM–140S, FAA, 

Seattle Aircraft Certification Office, 

1601 Lind Avenue SW., Renton, 

Washington 98057–3356; phone: (425) 

917–6496; fax: (425) 917–6590; email: 

chris.r.parker@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–2011–1231; Directorate Identifier 

2011–NM–088–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 

We have received reports of damaged 

fire seals on the forward edge of the 

thrust reverser, where the fire seal 

contacts the 12-o’clock engine strut. The 

damage has been reported as light wear 

marks, tears, and holes in the bulb-part 

of the fire seal. The damage to the seal 

is attributed to insufficient seal stiffness 

and/or missing vent holes. If a damaged 

seal remained in service for an extended 

time, damage also could result to the 12- 

o’clock strut structure and the thrust 

reverser firewall. Such damage could 

significantly deteriorate the protection 

capacity of the fire extinguishing system 

and result in an uncontrolled fire. 

Relevant Service Information 

We have reviewed Boeing Special 

Attention Service Bulletin 737–78– 

1086, dated October 6, 2010. This 

service information describes 

procedures for a general visual 

inspection on the upper fire seals on the 

forward edge of the thrust reversers, 

where the fire seals contact the 12- 

o’clock engine strut, for damage and 

correct stiffness, and for sufficient vent 

holes behind the upper fire seals; and 

corrective actions if necessary. 

Corrective actions include replacing any 

damaged fire seal, drilling vent holes in 

the upper fire seal if needed. The 

service information also specifies 

installing a new bracket behind the fire 

seal retainer to further stiffen the seal. 

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 


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Federal Register / Vol. 76, No. 223 / Friday, November 18, 2011 / Proposed Rules 71473 

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. 

Costs of Compliance 

We estimate that this proposed AD 

will affect 968 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 

General visual inspection and bracket installation.18 work-hours × $85 per hour = $1,530 ........ $756 $2,286 $2,212,848 

We estimate the following costs to do 

necessary repairs and 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 these repairs. 

ON-CONDITION COSTS

Action Labor cost Parts cost Cost per 

product 

Drill vent holes (up to 8) ............................................... 1 work-hour × $85 per hour = $85 ............................... $0 $85 

Replace fire seal (up to 4) ............................................ 8 work-hours × $85 per hour = $680 ........................... 8,010 8,690 

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. 

§ 39.13 [Amended] 

2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive (AD): 

The Boeing Company: Docket No. FAA– 

2011–1231; Directorate Identifier 2011– 

NM–088–AD. 

Comments Due Date 

(a) We must receive comments by January 

3, 2012. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to The Boeing 

Company Model 737–600, –700, –700C, 

–800, –900, and –900ER series airplanes with 

line numbers 1 through 3029 inclusive; 

certificated in any category. 

Subject 

(d) Joint Aircraft System Component 

(JASC)/Air Transport Association (ATA) of 

America Code 78: Engine exhaust. 

Unsafe Condition 

(e) This AD was prompted by reports of 

damaged upper fire seals on the forward edge 

of the thrust reversers. We are issuing this 

AD to detect and correct damage to the fire 

seals, which could result in damage to the 

strut structure and the thrust reverser 

firewall. Such damage could significantly 

deteriorate the protection capacity of the fire 

extinguishing system and result in an 

uncontrolled fire. 

Compliance 

(f) Comply with this AD within the 

compliance times specified, unless already 

done. 

Inspections and Corrective Actions 

(g) Within 36 months after the effective 

date of this AD: Do a general visual 

inspection of the left and right thrust reverser 

halves of each engine for damage to the 

upper fire seal, for stiffness of the upper fire 

seal, and for missing vent holes as applicable, 

in accordance with paragraph 3.B. of the 

Accomplishment Instructions of Boeing 

Special Attention Service Bulletin 737–78– 

1086, dated October 6, 2010. 

(1) If, during the inspection required by 

paragraph (g) of this AD, no upper fire seal 

damage is found, and the fire seal has the 

correct stiffness: Before further flight, drill 

vent holes if they are missing, and install a 

new bracket behind the upper fire seal 

retainer, in accordance with paragraph 3.B. of 


jlentini on DSK4TPTVN1PROD with PROPOSALS
71474 Federal Register / Vol. 76, No. 223 / Friday, November 18, 2011 / Proposed Rules 

the Accomplishment Instructions of Boeing 

Special Attention Service Bulletin 737–78– 

1086, dated October 6, 2010. 

(2) If, during the inspection required by 

paragraph (g) of this AD, upper fire seal 

damage or insufficient fire seal stiffness is 

found: Before further flight, install a new 

upper fire seal, drill vent holes if they are 

missing, and install a new bracket behind the 

upper fire seal retainer, in accordance with 

paragraph 3.B. of the Accomplishment 

Instructions of Boeing Special Attention 

Service Bulletin 737–78–1086, dated October 

6, 2010. 

Alternative Methods of Compliance 

(AMOCs) 

(h)(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. 

Related Information 

(i) For more information about this AD, 

contact Chris R. Parker, Aerospace Engineer, 

Propulsion Branch, ANM–140S, FAA, Seattle 

ACO, 1601 Lind Avenue SW., Renton, 

Washington 98057–3356; phone: (425) 917– 

6496; fax: (425) 917–6590; email: 

chris.r.parker@faa.gov. 

Issued in Renton, Washington, on 

November 8, 2011. 

Kalene C. Yanamura, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2011–29800 Filed 11–17–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF HOUSING AND 

URBAN DEVELOPMENT 

24 CFR Part 1000 

[Docket No. FR–5275–P–11] 

RIN 2577–AC80 

Native American Housing Assistance 

and Self-Determination 

Reauthorization Act of 2008: 

Amendments to Program Regulations 

AGENCY: Office of the Assistant 

Secretary for Public and Indian 

Housing, HUD. 

ACTION: Proposed rule. 

SUMMARY: This proposed rule would 

make several revisions to the regulations 

governing the Indian Housing Block 

Grant (IHBG) Program and the Title VI 

Loan Guarantee Program. HUD 

negotiated the proposed rule with active 

Tribal participation under the 

procedures of the Negotiated 

Rulemaking Act of 1990, pursuant to the 

Native American Housing Assistance 

and Self-Determination Reauthorization 

Act of 2008. The proposed regulatory 

changes would implement statutory 

amendments and reflect the consensus 

decisions reached by HUD and the 

Tribal representatives. 

DATES: Comment Due Date: January 17, 

2012. 

ADDRESSES: Interested persons are 

invited to submit comments regarding 

this proposed rule to the Regulations 

Division, Office of General Counsel, 

Department of Housing and Urban 

Development, 451 7th Street SW., Room 

10276, Washington, DC 20410–0500. 

Communications must refer to the above 

docket number and title. There are two 

methods for submitting public 

comments. All submissions must refer 

to the above docket number and title. 

1. Submission of Comments by Mail. 

Comments may be submitted by mail to 

the Regulations Division, Office of 

General Counsel, Department of 

Housing and Urban Development, 451 

7th Street SW., Room 10276, 

Washington, DC 20410–0500. 

2. Electronic Submission of 

Comments. Interested persons may 

submit comments electronically through 

the Federal eRulemaking Portal at 

http://www.regulations.gov. HUD 

strongly encourages commenters to 

submit comments electronically. 

Electronic submission of comments 

allows the commenter maximum time to 

prepare and submit a comment, ensures 

timely receipt by HUD, and enables 

HUD to make them immediately 

available to the public. Comments 

submitted electronically through the 

http://www.regulations.gov Web site can 

be viewed by other commenters and 

interested members of the public. 

Commenters should follow the 

instructions provided on that site to 

submit comments electronically. 

Note: To receive consideration as public 

comments, comments must be submitted 

through one of the two methods specified 

above. Again, all submissions must refer to 

the docket number and title of the rule. No 

Facsimile Comments. Facsimile (FAX) 

comments are not acceptable. 

Public Inspection of Public 

Comments. All properly submitted 

comments and communications 

submitted to HUD will be available for 

public inspection and copying between 

8 a.m. and 5 p.m. weekdays at the above 

address. Due to security measures at the 

HUD Headquarters building, an advance 

appointment to review the public 

comments must be scheduled by calling 

the Regulations Division at (202) 708– 

3055 (this is not a toll-free number). 

Individuals with speech or hearing 

impairments may access this number 

via TTY by calling the toll-free Federal 

Relay Service at (800) 877–8339. Copies 

of all comments submitted are available 

for inspection and downloading at 

http://www.regulations.gov. 

FOR FURTHER INFORMATION CONTACT: 

Rodger J. Boyd, Deputy Assistant 

Secretary for Native American 

Programs, Office of Public and Indian 

Housing, Department of Housing and 

Urban Development, 451 7th Street SW., 

Room 4126, Washington, DC 20410; 

telephone number (202) 401–7914 (this 

is not a toll-free number). Hearing- or 

speech-impaired individuals may access 

this number via TTY by calling the tollfree Federal Relay Service at 1–(800) 

877–8339. 

SUPPLEMENTARY INFORMATION: 

I. Background 

The Native American Housing 

Assistance and Self-Determination Act 

of 1996 (25 U.S.C. 4101 et seq.) 

(NAHASDA) changed the way that 

housing assistance is provided to Native 

Americans. NAHASDA eliminated 

several separate assistance programs 

and replaced them with a single block 

grant program, known as the Indian 

Housing Block Grant (IHBG) Program. In 

addition, Title VI of NAHASDA 

authorizes Federal guarantees for the 

financing of certain Tribal activities 

(under the Title VI Loan Guarantee 

Program). The regulations governing the 

IHBG and Title VI Loan Guarantee 

programs are located in part 1000 of 

HUD’s regulations in title 24 of the Code 

of Federal Regulations. In accordance 

with section 106 of NAHASDA, HUD 

developed the regulations with active 

Tribal participation under the 

procedures of the Negotiated 

Rulemaking Act of 1990 (5 U.S.C. 561– 

570). 

The Native American Housing 

Assistance and Self-Determination 

Reauthorization Act of 2008 (Pub. L. 

110–411, approved October 14, 2008) 

(NAHASDA Reauthorization Act) 

reauthorizes NAHASDA through 

September 30, 2013, and makes a 

number of amendments to the statutory 

requirements governing the IHBG and 

Title VI Loan Guarantee programs. The 

NAHASDA Reauthorization Act amends 

section 106 of NAHASDA by providing 

that HUD shall initiate a negotiated 

rulemaking in order to implement 


jlentini on DSK4TPTVN1PROD with PROPOSALS