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

50054 

Vol. 77, No. 161 

Monday, August 20, 2012 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–0846; Directorate 

Identifier 2012–CE–021–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 Models 172R 

and 172S airplanes. This proposed AD 

was prompted by reports of chafed fuel 

return line assemblies, which were 

caused by the fuel return line assembly 

rubbing against the right steering tube 

assembly during full rudder pedal 

actuation. This proposed AD would 

require you to inspect the fuel return 

line assembly for chafing; replace the 

fuel return line assembly if chafing is 

found; inspect the clearance between 

the fuel return line assembly and both 

the right steering tube assembly and the 

airplane structure; and adjustment as 

necessary. We are proposing this AD to 

correct the unsafe condition on these 

products. 

DATES: We must receive comments on 

this proposed AD by October 4, 2012. 

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 Cessna 

Aircraft Company, Customer service, 

P.O. Box 7706, Wichita, KS 67277; 

telephone: (316) 517–5800; fax: (316) 

517–7271; Internet: http:// 

www.cessnasupport.com. You may 

review copies of the referenced service 

information at the FAA, Small Airplane 

Directorate, 901 Locust, Kansas City, 

MO 64106. For information on the 

availability of this material at the FAA, 

call (816) 329–4148. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; 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: Jeff 

Janusz, Aerospace Engineer, Wichita 

Aircraft Certification Office, FAA, 1801 

S. Airport Road, Room 100, Wichita, 

Kansas 67209; phone: (316) 946–4148; 

fax: (316) 946–4107; email: 

jeff.janusz@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– 

2012–0846; Directorate Identifier 2012– 

CE–021–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 

In January 2012, we issued AD 2012– 

02–02 (77 FR 6003, February 7, 2012) 

for certain Cessna Aircraft Company 

(Cessna) Models 172R and 172S 

airplanes. That AD required inspection 

of the fuel return line assembly for 

chafing; replacement of the fuel return 

line assembly if chafing is found; 

inspection of the clearance between the 

fuel return line assembly and both the 

right steering tube assembly and the 

airplane structure; and adjustment as 

necessary. That AD resulted from 

reports of chafed fuel return line 

assemblies, which were caused by the 

fuel return line assembly rubbing 

against the right steering tube assembly 

during full rudder pedal actuation. We 

issued that AD to detect and correct 

chafing of the fuel return line assembly, 

which could result in fuel leaking under 

the floor and fuel vapors entering the 

cabin. This condition could lead to fire 

under the floor or in the cabin area. 

We were recently notified that the 

unsafe condition also applies to 

airplanes with an installed engine fuel 

return system modification kit. 

Relevant Service Information 

We reviewed Cessna Service Bulletin 

SB07–28–01, Revision 1, dated 

September 22, 2011. The service 

information describes the following 

procedures: 

• Inspecting the fuel return line 

assembly; 

• Replacing the fuel return line 

assembly if chafing is found; and 

• Inspecting the clearance between 

the fuel return line assembly and both 

the right steering tube assembly and the 

airplane structure, adjusting as 

necessary. 

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 


emcdonald on DSK67QTVN1PROD with PROPOSALS
Federal Register / Vol. 77, No. 161 / Monday, August 20, 2012 / Proposed Rules 50055 

‘‘Differences Between the Proposed AD 

and the Service Information.’’ 

This proposed AD will apply to only 

the Cessna Models 172R and 172S 

airplanes that have installed an engine 

fuel return system modification kit. 

AD 2012–02–02 (77 FR 6003, 

February 7, 2012) will remain in effect 

for the airplanes without the 

modification kit. 

Differences Between the Proposed AD 

and the Service Information 

The service information permits tube 

damage up to a depth of 0.0035 inch. 

There is no known method to accurately 

measure the thickness damage on a 

tube. We propose to require replacement 

of the fuel return line assembly if any 

damage is found. 

If no chafing is found in the 

inspection of the fuel return line 

assembly, the service information does 

not require inspection for clearance 

around the fuel return line assembly. 

We propose to require you to inspect the 

clearance between the fuel return line 

assembly and both the right steering 

tube assembly and airplane structure if 

no chafing is found and if the fuel 

return line assembly requires replacing. 

The service information does not 

specify a minimum clearance 

requirement between the fuel return line 

assembly and the right steering tube 

assembly, only that the fuel return line 

assembly does not touch either the right 

steering tube assembly or the airplane 

structure. We propose to require a 

minimum of 0.5 inch of clearance 

between the fuel return line assembly 

and the right steering tube assembly and 

require visible positive clearance 

between the fuel return line assembly 

and the airplane structure, during full 

rudder pedal actuation. 

The serial numbers this proposed AD 

apply to are not included in the 

Effectivity of the service information. 

However, the procedures in the service 

information for inspection and 

replacement of the fuel return line 

assembly are still accurate for the serial 

numbers this proposed AD applies to. 

The requirements of this proposed 

AD, if adopted as a final rule, would 

take precedence over the provisions in 

the service information. 

Costs of Compliance 

We estimate that this proposed AD 

affects 55 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 of the fuel return line assembly 

for chafing and clearance.

1 work-hour × $85 per hour = $85 ........... Not applicable ........... $85 $4,675 

We estimate the following costs to do 

any necessary replacements and 

adjustments that would be required 

based on the results of the inspection. 

We have no way of determining the 

number of aircraft that might need these 

replacements: 

ON-CONDITION COSTS

Action Labor cost Parts cost Cost per 

product 

Replacement of the fuel return line assembly and adjustment of the clearance 

between the fuel return line assembly and both the steering tube assembly and 

the airplane structure.

1 work-hour × $85 per 

hour = $85.

$123 $208 

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): 


emcdonald on DSK67QTVN1PROD with PROPOSALS
50056 Federal Register / Vol. 77, No. 161 / Monday, August 20, 2012 / Proposed Rules 

1 77 FR 39201 (July 2, 2012). 

Cessna Aircraft Company: Docket No. FAA– 

2012–0846; Directorate Identifier 2012– 

CE–021–AD. 

(a) Comments Due Date 

We must receive comments by October 4, 

2012. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to the following Cessna 

Aircraft Company (Cessna) airplanes, 

certificated in any category: 

(1) Model 172R, serial numbers (S/N) 

17280001 through 17281187, that have 

incorporated Cessna Aircraft Company 

Service Bulletin SB04–28–03, dated August 

30, 2004, and Engine Fuel Return System, 

Modification Kit MK172–28–01, dated 

August 30, 2004; and 

(2) Model 172S, S/N 172S8001 through 

172S9490, that have incorporated Cessna 

Aircraft Company Service Bulletin SB04–28– 

03, dated August 30, 2004, and Engine Fuel 

Return System, Modification Kit MK172–28– 

01; dated August 30, 2004. 

(d) Subject 

Joint Aircraft System Component (JASC)/ 

Air Transport Association (ATA) of America 

Code 2820, Aircraft Fuel Distribution System. 

(e) Unsafe Condition 

This AD was prompted by reports of 

chafed fuel return line assemblies caused by 

the fuel return line assembly rubbing against 

the right steering tube assembly during full 

rudder pedal actuation. We are issuing this 

AD to correct the unsafe condition on these 

products. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Inspect the Fuel Return Line Assembly 

At whichever of the following that occurs 

later, inspect the fuel return line assembly 

(Cessna part number (P/N) 0500118–49) for 

chafing following Cessna Service Bulletin 

SB07–28–01, Revision 1, dated September 

22, 2011. 

(1) At the next annual inspection after the 

effective date of this AD; or 

(2) Within the next 100 hours time-inservice (TIS) after the effective date of this 

AD; or 

(3) Within the next 12 calendar months 

after the effective date of this AD. 

(h) Replace the Fuel Line Assembly 

If you find evidence of chafing of the fuel 

return line assembly (Cessna P/N 0500118– 

49) as a result of the inspection required by 

paragraph (g) of this AD, then before further 

flight, replace the fuel return line assembly 

(Cessna P/N 0500118–49) following Cessna 

Service Bulletin SB07–28–01, Revision 1, 

dated September 22, 2011. 

(i) Inspect for a Minimum Clearance 

Between Certain Parts 

After any inspection required by paragraph 

(g) of this AD and no chafing of the fuel 

return line assembly (Cessna P/N 0500118– 

49) is found or after replacement of the fuel 

return line assembly (Cessna P/N 0500118– 

49) required by paragraph (h) of this AD, 

before further flight, inspect for a minimum 

clearance between the following parts 

throughout the range of copilot pedal travel: 

(1) A minimum clearance of 0.5 inch 

between the fuel return line assembly 

(Cessna P/N 0500118–49) and the right 

steering tube assembly (Cessna P/N 

MC0543022–2C); and 

(2) Visible positive clearance between the 

fuel return line assembly (Cessna P/N 

0500118–49) and the airplane structure. 

(j) Adjust Clearance for Fuel Return Line 

Assembly 

If the clearance between the fuel return 

line assembly and the right steering tube 

assembly and the clearance between the fuel 

return line assembly and the aircraft 

structure do not meet the minimums as 

specified in paragraphs (i)(l) and (i)(2) of this 

AD, before further flight, adjust the 

clearances to meet the required minimums 

following the Instructions paragraph of 

Cessna Service Bulletin SB07–28–01, 

Revision 1, dated September 22, 2011. 

(k) Engine Fuel Return System Modification 

Do not install Cessna Aircraft Company 

Service Bulletin SB 04–28–03 and Engine 

Fuel Return System Modification Kit MK 

172–28–01, both dated August 30, 2004, 

without performing the actions in this AD. 

(l) 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. 

(m) Related Information 

(1) For more information about this AD, 

contact Jeff Janusz, Aerospace Engineer, 

Wichita ACO, FAA, 1801 S. Airport Road, 

Room 100, Wichita, Kansas 67209; phone: 

(316) 946–4148; fax: (316) 946–4107; email: 

jeff.janusz@faa.gov. 

(2) For service information identified in 

this AD, contact Cessna Aircraft Company, 

Customer Service, P.O. Box 7706, Wichita, 

KS 67277; telephone: (316) 517–5800; fax: 

(316) 517–7271; Internet: http:// 

www.cessnasupport.com. You may review 

copies of the referenced service information 

at the FAA, Small Airplane Directorate, 901 

Locust, Kansas City, MO 64106. For 

information on the availability of this 

material at the FAA, call (816) 329–4148. 

Issued in Kansas City, Missouri, on August 

14, 2012. 

Earl Lawrence, 

Manager, Small Airplane Directorate, Aircraft 

Certification Service. 

[FR Doc. 2012–20371 Filed 8–17–12; 8:45 am] 

BILLING CODE 4910–13–P 

FEDERAL TRADE COMMISSION 

16 CFR PART 23 

Guides for the Jewelry, Precious 

Metals, and Pewter Industries 

AGENCY: Federal Trade Commission 

(‘‘FTC’’ or ‘‘Commission’’). 

ACTION: Notice of extension of deadline 

for submission of public comments. 

SUMMARY: The FTC is extending the 

deadline for filing public comments on 

the Guides for the Jewelry, Precious 

Metals, and Pewter Industries. 

DATES: Comments must be received on 

or before September 28, 2012. 

ADDRESSES: Interested parties may file 

comments online or on paper by 

following the instructions at the end of 

the SUPPLEMENTARY INFORMATION section 

below. Write ‘‘Jewelry Guides, 16 CFR 

Part 23, Project No. G711001’’ on your 

comment, and file your comment online 

at https://ftcpublic.commentworks.com/ 

ftc/jewelryguidesreview by following the 

instructions on the web-based form. If 

you prefer to file your comment on 

paper, mail or deliver your comment to 

the following address: Federal Trade 

Commission, Office of the Secretary, 

Room H–113 (Annex O), 600 

Pennsylvania Avenue NW., Washington, 

DC 20580. 

FOR FURTHER INFORMATION CONTACT: 

Reenah L. Kim, Attorney, (202) 326– 

2272, Division of Enforcement, Bureau 

of Consumer Protection, Federal Trade 

Commission, 600 Pennsylvania Avenue 

NW., Washington, DC 20580. 

SUPPLEMENTARY INFORMATION: On July 2, 

2012, as part of the Commission’s 

systematic review of its rules and 

guides, the FTC published a notice in 

the Federal Register (‘‘FRN’’) requesting 

public comments on the Guides for the 

Jewelry, Precious Metals, and Pewter 

Industries (‘‘Jewelry Guides’’ or 

‘‘Guides).1 The FRN solicits comments 

on the Guides’ costs and benefits, and 

on whether the Commission should 

repeal, amend, or retain the Guides in 

their current form. The FRN also solicits 

comments on several specific issues 

concerning composite gemstones, 

pearls, diamonds, and precious metal 

alloys, as well as comments regarding 


emcdonald on DSK67QTVN1PROD with PROPOSALS