Federal Register / Vol. 77, No. 12 / Thursday, January 19, 2012 / Proposed Rules 2659 

parts would cost about $19 per product. 

Where the service information lists 

required parts costs that are covered 

under warranty, we have assumed that 

there will be no charge for these parts. 

As we do not control warranty coverage 

for affected parties, some parties may 

incur costs higher than estimated here. 

Based on these figures, we estimate the 

cost of the proposed AD on U.S. 

operators to be $22,742, or $274 per 

product. 

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. 

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 adding 

the following new AD: 

Bombardier, Inc.: Docket No. FAA–2011– 

1418; Directorate Identifier 2011–NM– 

187–AD. 

(a) Comments Due Date 

We must receive comments by March 5, 

2012. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Bombardier, Inc. Model 

DHC–8–400, –401, and –402 airplanes; 

certificated in any category; serial numbers 

4001, 4003 through 4354 inclusive; and 4356 

through 4363 inclusive. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 71: Power Plant. 

(e) Reason 

This AD was prompted by chafing on high 

pressure fuel lines due to improper 

installation of an expandable pin on the 

lower cowl assembly. We are issuing this AD 

to prevent chafing of the high pressure fuel 

lines, which if not corrected, could cause fuel 

leakage in a fire zone. 

(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) Actions 

Within 6,000 flight hours or 36 months 

after the effective date of this AD, whichever 

occurs first, install new or serviceable spring 

clips and re-position the lanyard attachment 

points, in accordance with the 

Accomplishment Instructions of Bombardier 

Service Bulletin 84–71–13, dated May 19, 

2011. 

(h) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, New York Aircraft 

Certification Office (ACO), ANE–170, 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 ACO, send it 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. 

(i) Related Information 

Refer to MCAI Canadian Airworthiness 

Directive CF–2011–21, dated July 12, 2011; 

and Bombardier Service Bulletin 84–71–13, 

dated May 19, 2011; for related information. 

Issued in Renton, Washington, on January 

6, 2012. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2012–854 Filed 1–18–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–1413; Directorate 

Identifier 2011–NM–062–AD] 

RIN 2120–AA64 

Airworthiness Directives; Cessna 

Aircraft 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 

Cessna Aircraft Company Model 560XL 

airplanes. This proposed AD was 

prompted by reports of wheel inserts 

becoming loose and damaging brake 

assemblies on Model 560XL airplanes. 

This proposed AD would require an 

inspection of the torque lug and 

surrounding components (wheel base, 

side rim, lock ring) for damage (such as 

corrosion, cracks, dents, bent areas, 

damaged or missing paint or primer, or 


EMCDONALD on DSK29S0YB1PROD with PROPOSALS
2660 Federal Register / Vol. 77, No. 12 / Thursday, January 19, 2012 / Proposed Rules 

wear on the metal), and of the bearing 

cup for corrosion, turned cup, or 

clearance that exceeds limits, and repair 

as applicable; measuring the torque lugs 

for width and replacing screws and 

inserts with new, improved screws and 

inserts; and re-identifying the wheel 

assemblies. We are proposing this AD to 

correct the unsafe condition on these 

products. 

DATES: We must receive comments on 

this proposed AD by March 5, 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: Deliver to Mail 

address above between 9 a.m. and 

5 p.m., Monday through Friday, except 

Federal holidays. 

For Cessna service information 

identified in this proposed AD, contact 

Cessna Aircraft Co., P.O. Box 7706, 

Wichita, Kansas 67277–7706; telephone 

(316) 517–6215; fax (316) 517–5802; 

email citationpubs@cessna.textron.com; 

Internet https://www.cessnasupport.

com/newlogin.html. For Goodrich 

service information identified in this 

proposed AD, contact Goodrich 

Corporation, Aircraft Wheels & Brakes, 

P.O. Box 340, Troy, Ohio 45373–3872; 

telephone (937) 440–2130; fax (937) 

440–2055; email WBPubsAdmin@goodrich.com; Internet http:// 

www.goodrich.com/TechPubs. 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: 

David Fairback, Aerospace Engineer, 

Mechanical Systems and Propulsion 

Branch, ACE–116W, FAA, Wichita 

Aircraft Certification Office, 1801 

Airport Road, Room 100, Mid-Continent 

Airport, Wichita, KS 67209; phone: 

(316) 946–4154; fax: (316) 946–4107; 

email: david.fairback@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– 

2011–1413; Directorate Identifier 2011– 

NM–062–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 wheel 

inserts becoming loose and damaging 

brake assemblies on Model 560XL 

airplanes. In two cases, a loose wheel 

insert damaged the brake housing at a 

location that affects both the antiskid 

brake hydraulic system and the 

emergency brake system. In those two 

cases, both systems failed to stop the 

airplane on the runway. This condition, 

if not corrected, could result in brake 

failure, and consequently an airplane 

not being able to stop on the runway. 

Relevant Service Information 

We reviewed Cessna Service Bulletin 

SB560XL–32–41, Revision 1, dated May 

5, 2011, including Service Bulletin 

Supplemental Data SB560XL–32–41, 

dated February 25, 2011. That service 

bulletin describes procedures for doing 

a general visual inspection of the torque 

lug and surrounding components (wheel 

base, side rim, lock ring) for damage 

(such as corrosion, cracks, dents, bent 

areas, damaged or missing paint or 

primer, or wear on the metal), and of the 

bearing cup for corrosion, turned cup, or 

clearance that exceeds limits, and repair 

if necessary; measuring the torque lugs 

for width and replacing screws and 

inserts with new, improved screws and 

inserts; and re-identifying the wheel 

assemblies. 

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, except as discussed under 

‘‘Difference Between the Proposed AD 

and the Service Information.’’ 

Difference Between the Proposed AD 

and the Service Information 

Operators should note that, although 

the Accomplishment Instructions of 

Cessna Service Bulletin SB560XL–32– 

41, Revision 1, dated May 5, 2011, 

describe procedures for submitting a 

comment sheet related to service 

bulletin quality and a sheet recording 

compliance with the service bulletin, 

this proposed AD would not require 

those actions. 

Costs of Compliance 

We estimate that this proposed AD 

affects 473 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, and measurement of the torque 

lugs, replacement of screws and inserts, 

and re-marking.

Up to 11 work-hours × 

$85 per hour = 

$935.

Up to $6,462 .............. Up to $7,397 .............. Up to $3,498,781 


EMCDONALD on DSK29S0YB1PROD with PROPOSALS
Federal Register / Vol. 77, No. 12 / Thursday, January 19, 2012 / Proposed Rules 2661 

We estimate the following costs to do 

any necessary repairs or replacements as 

applicable 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 or 

replacements: 

ON-CONDITION COSTS

Action Labor cost Parts cost Cost per product 

Repair or replacement as applicable ........ Between 1 and 9 work-hour[s] × 

$85 per hour = Between $85 

and $765 per wheel assembly.

Between $0 and $24,000 per 

wheel assembly.

Between $85 and $24,765 per 

wheel assembly 

According to the manufacturer, all of 

the costs of this proposed AD may be 

covered under warranty, thereby 

reducing the cost impact on affected 

individuals. We do not control warranty 

coverage for affected individuals. As a 

result, we have included all costs in our 

cost estimate. 

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): 

Cessna Aircraft Company: Docket No. FAA– 

2011–1413; Directorate Identifier 2011– 

NM–062–AD. 

(a) Comments Due Date 

We must receive comments by March 5, 

2012. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Cessna Aircraft 

Company Model 560XL airplanes; 

certificated in any category; having serial 

numbers 5002 through 5372 inclusive, 5501 

through 5830 inclusive, 6001 through 6055 

inclusive, 6057 through 6066 inclusive, 6069 

through 6071 inclusive, and 6073 through 

6077 inclusive. 

(d) Subject 

Joint Aircraft System Component (JASC)/ 

Air Transport Association (ATA) of America 

Code 32, Landing Gear. 

(e) Unsafe Condition 

This AD was prompted by reports of wheel 

inserts becoming loose and damaging brake 

assemblies on Model 560XL airplanes. We 

are issuing this AD to prevent brake failure, 

which could result in an airplane not being 

able to stop on the runway. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Inspection, Corrective Action, and 

Replacement 

Within 1 year after the effective date of this 

AD, or during the next tire change 

accomplished after the effective date of this 

AD, whichever occurs first: Do the actions 

specified in paragraphs (g)(1), (g)(2), and 

(g)(3) of this AD on both main wheels, in 

accordance with the Accomplishment 

Instructions of Cessna Service Bulletin 

SB560XL–32–41, Revision 1, dated May 5, 

2011. Do all applicable repairs and 

replacements before further flight. 

(1) Do a general visual inspection of the 

torque lug and surrounding components 

(wheel base, side rim, lock ring) for damage 

(such as corrosion, cracks, dents, bent areas, 

damaged or missing paint or primer, or wear 

on the metal), and of the bearing cup for 

corrosion, turned cup, or clearance that 

exceeds limits, and all applicable repairs. 

(2) Measure the torque lugs for width and 

replace screws and inserts with new, 

improved screws and inserts. 

(3) Re-identify the wheel assembly. 

Note 1: Cessna Service Bulletin SB560XL– 

32–41, Revision 1, dated May 5, 2011, refers 

to Goodrich Service Bulletin 3–1571–32–7, 

dated February 25, 2011, as an additional 

source of guidance on inspecting and 

repairing the torque lugs, surrounding 

components, and bearing cup, and reidentifying the wheel assemblies. 

Note 2: For the purposes of this AD, a 

general visual inspection is: ‘‘A visual 

examination of an interior or exterior area, 

installation, or assembly to detect obvious 

damage, failure, or irregularity. This level of 

inspection is made from within touching 

distance unless otherwise specified. A mirror 

may be necessary to ensure visual access to 

all surfaces in the inspection area. This level 

of inspection is made under normally 

available lighting conditions such as 

daylight, hangar lighting, flashlight, or 

droplight and may require removal or 

opening of access panels or doors. Stands, 

ladders, or platforms may be required to gain 

proximity to the area being checked.’’ 

(h) Parts Installation 

As of the effective date of this AD, no 

person may install, on any airplane, a wheel 


EMCDONALD on DSK29S0YB1PROD with PROPOSALS
2662 Federal Register / Vol. 77, No. 12 / Thursday, January 19, 2012 / Proposed Rules 

assembly having P/N 3–1571–3 or 3–1571–4, 

unless it has been inspected, measured, and 

re-identified, in accordance with paragraph 

(g) of this AD, and all applicable repairs or 

replacements have been done. 

(i) Credit for Actions Accomplished in 

Accordance With Previous Service 

Information 

Actions done before the effective date of 

this AD in accordance with Cessna Service 

Bulletin SB560XL–32–41, dated February 25, 

2011, are acceptable for compliance with the 

corresponding requirements of this AD. 

(j) No Reporting Required 

Although Cessna Service Bulletin 

SB560XL–32–41, Revision 1, dated May 5, 

2011, specifies to submit certain information 

to the manufacturer, this AD does not 

include that requirement. 

(k) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, Wichita 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. 

(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. 

(l) Related Information 

(1) For more information about this AD, 

contact David Fairback, Aerospace Engineer, 

Mechanical Systems and Propulsion Branch, 

ACE–116W, FAA, Wichita Aircraft 

Certification Office, 1801 Airport Road, 

Room 100, Mid-Continent Airport, Wichita, 

KS 67209; phone: (316) 946–4154; fax: (316) 

946–4107; email: david.fairback@faa.gov. 

(2) For Cessna service information 

identified in this AD, contact Cessna Aircraft 

Co., P.O. Box 7706, Wichita, Kansas 67277; 

telephone (316) 517–6215; fax (316) 517– 

5802; email 

citationpubs@cessna.textron.com; Internet 

https://www.cessnasupport.com/ 

newlogin.html. For Goodrich service 

information identified in this proposed AD, 

contact Goodrich Corporation, Aircraft 

Wheels & Brakes, P.O. Box 340, Troy, Ohio 

45373–3872; telephone (937) 440–2130; fax 

(937) 440–2055; email WBPubsAdmin@goodrich.com; Internet http:// 

www.goodrich.com/TechPubs. You may 

review copies of the referenced service 

information at the FAA, Transport Airplane 

Directorate, 1601 Lind Ave. SW., Renton, 

WA. For information on the availability of 

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

Issued in Renton, Washington, on January 

6, 2012. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2012–855 Filed 1–18–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–1416; Directorate 

Identifier 2011–NM–156–AD] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc. 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 

Bombardier, Inc. Model CL–600–2C10 

(Regional Jet Series 700, 701, & 702); 

CL–600–2D15 (Regional Jet Series 705); 

CL–600–2D24 (Regional Jet Series 900); 

and CL–600–2E25 (Regional Jet Series 

1000) airplanes. This proposed AD was 

prompted by reports of deformation of 

the pressure regulator on the oxygen 

cylinder, which was attributed to 

batches of raw material that did not 

meet required tensile strength. This 

proposed AD would require an 

inspection to determine if certain 

oxygen pressure regulators are installed, 

and replacement of oxygen cylinder and 

regulator assemblies (CRAs) containing 

pressure regulators that do not meet 

required material properties. We are 

proposing this AD to prevent elongation 

of the pressure regulator neck, which 

could result in rupture of the oxygen 

cylinder, and in the case of cabin 

depressurization, oxygen would not be 

available when required. 

DATES: We must receive comments on 

this proposed AD by March 5, 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, between 

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

Friday, except Federal holidays. 

For service information identified in 

this proposed AD, contact Bombardier, 

Inc., 400 Coˆte-Vertu Road West, Dorval, 

Que ́bec H4S 1Y9, Canada; telephone 

(514) 855–5000; fax (514) 855–7401; 

email thd.crj@aero.bombardier.com; 

Internet http://www.bombardier.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 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: 

Cesar Gomez, Aerospace Engineer, 

Airframe and Mechanical Systems 

Branch, ANE–171, FAA, New York 

Aircraft Certification Office (ACO), 1600 

Stewart Avenue, Suite 410, Westbury, 

New York 11590; telephone (516) 228– 

7318; fax (516) 794–5531. 

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–2011–1416; Directorate Identifier 

2011–NM–156–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. 


EMCDONALD on DSK29S0YB1PROD with PROPOSALS