Airworthiness Directives; Cessna Aircraft Company Models 172R and 172S Airplanes, 60291-60293 [E7-20862]

Download as PDF Federal Register / Vol. 72, No. 205 / Wednesday, October 24, 2007 / Proposed Rules DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2007–29138; Directorate Identifier 2007–CE–073–AD] RIN 2120–AA64 Airworthiness Directives; Cessna Aircraft Company Models 172R and 172S Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Notice of proposed rulemaking (NPRM). AGENCY: SUMMARY: We propose to adopt a new airworthiness directive (AD) for certain Cessna Aircraft Company (Cessna) Models 172R and 172S. 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; and inspect the clearance between the fuel return line assembly and both the right steering tube assembly and the airplane structure, adjusting as necessary. This proposed AD results 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 are proposing this 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. DATES: We must receive comments on this proposed AD by December 24, 2007. Use one of the following addresses to comment on this proposed AD: • 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., yshivers on PROD1PC62 with PROPOSALS ADDRESSES: VerDate Aug<31>2005 15:24 Oct 23, 2007 Jkt 214001 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 Cessna Aircraft Company, Product Support, P.O. Box 7706, Wichita, Kansas 67277; telephone: (316) 517–5800; fax: (316) 942–9006. FOR FURTHER INFORMATION CONTACT: Trenton Shepherd, Aerospace Engineer, 1801 Airport Road, Room 100, Wichita, Kansas 67209; telephone: (316) 946– 4143; fax: (316) 946–4107; e-mail: trent.shepherd@faa.gov. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any written relevant data, views, or arguments regarding this proposed AD. Send your comments to an address listed under the ADDRESSES section. Include the docket number, ‘‘FAA–2007–29138; Directorate Identifier 2007–CE–073–AD’’ at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of the proposed AD. We will consider all comments received by the closing date and may amend the proposed AD in light 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 concerning this proposed AD. Discussion We have received four reports of fuel return line assembly chafing in Cessna Models 172R and 172S airplanes. The reports indicated the fuel return line assembly rubbed against the right steering tube assembly during full rudder pedal actuation and caused the chafing. This condition, if not corrected, could result in fuel leaking under the cabin floor and fuel vapors entering the cabin. This condition could lead to fire under the floor or in the cabin area. Relevant Service Information We have reviewed Cessna Mandatory Service Bulletin SB07–28–01, dated June 18, 2007. The service information describes the following procedures: • Inspecting the fuel return line assembly; PO 00000 Frm 00007 Fmt 4702 Sfmt 4702 60291 • 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 and Requirements of the Proposed AD We are proposing this AD because we evaluated all information and determined the unsafe condition described previously is likely to exist or develop on other products of the same type design. This proposed AD would require you to detect and correct chafing of the fuel vent line assembly. Differences Between This 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 inspect the clearance between the fuel return line assembly and both the right steering tube assembly and airplane structure, for all applicable aircraft. 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 both the right steering tube assembly and the airplane structure, during full rudder pedal actuation. 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 would affect 928 airplanes in the U.S. registry. We estimate the following costs to do the proposed inspection: E:\FR\FM\24OCP1.SGM 24OCP1 60292 Federal Register / Vol. 72, No. 205 / Wednesday, October 24, 2007 / Proposed Rules Labor cost Parts cost Total cost per airplane Total cost on U.S. operators 1 work-hour × $80 per hour = $80 .......................................................................................................... N/A $80 $74,240 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 airplanes that may need this replacement: Labor cost Parts cost Total cost per airplane 0.5 work-hour × $80 per hour = $40 ............................................................................................................................... $123 $163 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); and 3. 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. Examining the AD Docket You may examine the AD docket that contains the proposed AD, the regulatory evaluation, any comments received, and other information 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 Docket Office (telephone (800) 647–5527) is located at the street address stated in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, 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: Cessna Aircraft Company: Docket No. FAA– 2007–29138; Directorate Identifier 2007– CE–073–AD. Comments Due Date (a) We must receive comments on this airworthiness directive (AD) action by December 24, 2007. Affected ADs (b) None. Applicability (c) This AD applies to the following airplane models and serial numbers that are certificated in any category: Models Serial No. 172R ............. 172S ............. 17281188 through 17281390. 172S9491 through 172S10489. Unsafe Condition (d) This AD results from 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 detect and correct chafing of the fuel return line assembly, which could result in fuel leaking under the cabin floor and fuel vapors entering the cabin. This condition could lead to fire under the floor or in the cabin area. Compliance (e) To address this problem, you must do the following, unless already done: Note: The requirements of this AD take precedence over the actions required in the service information. yshivers on PROD1PC62 with PROPOSALS Actions Compliance Procedures (1) Inspect the fuel return line assembly (Cessna part number (P/N) 0500118–49 or FAA-approved equivalent P/N) for chafing. Within the next 100 hours time-in-service (TIS) after the effective date of this AD or within the next 12 months after the effective date of this AD, whichever occurs first. Follow Cessna Service Bulletin SB07–28–01, dated June 18, 2007. VerDate Aug<31>2005 15:24 Oct 23, 2007 Jkt 214001 PO 00000 Frm 00008 Fmt 4702 Sfmt 4702 E:\FR\FM\24OCP1.SGM 24OCP1 Federal Register / Vol. 72, No. 205 / Wednesday, October 24, 2007 / Proposed Rules 60293 Actions Compliance Procedures (2) If chafing is found in the inspection required in paragraph (e)(1) of this AD, replace the fuel return line assembly (Cessna P/N 0500118–49 or FAA-approved equivalent P/ N). (3) Inspect for a minimum clearance of 0.5 inch between the following parts throughout the entire range of copilot rudder pedal travel and adjust the clearance as necessary: Before further flight after the inspection required in paragraph (e)(1) of this AD where evidence of chafing was found. Follow Cessna Service Bulletin SB07–28–01, dated June 18, 2007. Before further flight after: (A) The inspection required in paragraph (e)(1) of this AD if no chafing is found; or (B) The replacement required in paragraph (e)(2) of this AD. Follow paragraph 6 of the Instructions section of Cessna Service Bulletin SB07–28–01, dated June 18, 2007. This AD requires a minimum clearance of 0.5 inch. (i) The fuel return line assembly (Cessna P/ N 0500118–49 or FAA-approved equivalent P/N) and the steering tube assembly (Cessna P/N MC0543022–2C); and (ii) The fuel return line assembly (Cessna P/N 0500118–49 or FAA-approved equivalent P/N) and the airplane structure. Alternative Methods of Compliance (AMOCs) DEPARTMENT OF TRANSPORTATION (f) 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. Send information to ATTN: Trenton Shepherd, Aerospace Engineer, 1801 Airport Road, Room 100, Wichita, Kansas 67209; telephone: (316) 946–4143; fax: (316) 946–4107; e-mail: trent.shepherd@faa.gov. Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. Federal Aviation Administration Related Information (g) To get copies of the service information referenced in this AD, contact Cessna Aircraft Company, Product Support, P.O. Box 7706, Wichita, Kansas 67277; telephone: (316) 517– 5800; fax: (316) 942–9006. To view the AD docket, go to U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12– 140, 1200 New Jersey Avenue, SE., Washington, DC 20590, or on the Internet at http://www.regulations.gov. The docket number is Docket No. FAA–2007–29138; Directorate Identifier 2007–CE–073–AD. Issued in Kansas City, Missouri, on October 17, 2007. David R. Showers, Acting Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. E7–20862 Filed 10–23–07; 8:45 am] yshivers on PROD1PC62 with PROPOSALS BILLING CODE 4910–13–P VerDate Aug<31>2005 15:24 Oct 23, 2007 Jkt 214001 14 CFR Part 39 [Docket No. FAA–2007–0036; Directorate Identifier 2007–NE–22–AD] RIN 2120–AA64 Airworthiness Directives; Rolls-Royce plc RB211–524 Series Turbofan Engines Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: SUMMARY: We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD results from mandatory continuing airworthiness information (MCAI) provided by the aviation authority of the United Kingdom to identify and correct an unsafe condition on an aviation product. The MCAI states the following: Recently an RB211 HP turbine disc has been found with a crack which had propagated further than expected from the risk model that was used to establish the original inspection. We are proposing this AD to detect cracks that could cause the high pressure (HP) turbine disc to fail and result in uncontained failure of the engine. DATES: We must receive comments on this proposed AD by November 23, 2007. ADDRESSES: You may send comments by any of the following methods: • Government-wide rulemaking Web site: Go to http://www.regulations.gov and follow the instructions for sending your comments electronically. • Mail: Docket Management Facility, U.S. Department of Transportation, PO 00000 Frm 00009 Fmt 4702 Sfmt 4702 West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC 20590–0001. • Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. • Fax: (202) 493–2251. You can get the service information identified in this proposed AD from Rolls-Royce plc, P.O. Box 31, DERBY, DE24 8BJ, UK, telephone: 44 (0) 1332 242424; fax: 44 (0) 1332 249936. 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 the same as the Mail address provided in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Jason Yang, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; e-mail: jason.yang@faa.gov; telephone (781) 238–7747; fax (781) 238–7199. 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–2007–0036; Directorate Identifier 2007–NE–22–AD’’ at the beginning of your comments. We specifically invite comments on the overall regulatory, E:\FR\FM\24OCP1.SGM 24OCP1

Agencies

[Federal Register Volume 72, Number 205 (Wednesday, October 24, 2007)]
[Proposed Rules]
[Pages 60291-60293]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E7-20862]



[[Page 60291]]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2007-29138; Directorate Identifier 2007-CE-073-AD]
RIN 2120-AA64


Airworthiness Directives; Cessna Aircraft Company Models 172R and 
172S Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Notice of proposed rulemaking (NPRM).

-----------------------------------------------------------------------

SUMMARY: We propose to adopt a new airworthiness directive (AD) for 
certain Cessna Aircraft Company (Cessna) Models 172R and 172S. 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; 
and inspect the clearance between the fuel return line assembly and 
both the right steering tube assembly and the airplane structure, 
adjusting as necessary. This proposed AD results 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 are proposing this 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.

DATES: We must receive comments on this proposed AD by December 24, 
2007.

ADDRESSES: Use one of the following addresses to comment on this 
proposed AD:
     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 
Cessna Aircraft Company, Product Support, P.O. Box 7706, Wichita, 
Kansas 67277; telephone: (316) 517-5800; fax: (316) 942-9006.

FOR FURTHER INFORMATION CONTACT: Trenton Shepherd, Aerospace Engineer, 
1801 Airport Road, Room 100, Wichita, Kansas 67209; telephone: (316) 
946-4143; fax: (316) 946-4107; e-mail: trent.shepherd@faa.gov.

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments regarding this proposed AD. Send your comments to an address 
listed under the ADDRESSES section. Include the docket number, ``FAA-
2007-29138; Directorate Identifier 2007-CE-073-AD'' at the beginning of 
your comments. We specifically invite comments on the overall 
regulatory, economic, environmental, and energy aspects of the proposed 
AD. We will consider all comments received by the closing date and may 
amend the proposed AD in light 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 concerning this proposed AD.

Discussion

    We have received four reports of fuel return line assembly chafing 
in Cessna Models 172R and 172S airplanes. The reports indicated the 
fuel return line assembly rubbed against the right steering tube 
assembly during full rudder pedal actuation and caused the chafing.
    This condition, if not corrected, could result in fuel leaking 
under the cabin floor and fuel vapors entering the cabin. This 
condition could lead to fire under the floor or in the cabin area.

Relevant Service Information

    We have reviewed Cessna Mandatory Service Bulletin SB07-28-01, 
dated June 18, 2007. 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 and Requirements of the Proposed AD

    We are proposing this AD because we evaluated all information and 
determined the unsafe condition described previously is likely to exist 
or develop on other products of the same type design. This proposed AD 
would require you to detect and correct chafing of the fuel vent line 
assembly.

Differences Between This 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 inspect 
the clearance between the fuel return line assembly and both the right 
steering tube assembly and airplane structure, for all applicable 
aircraft.
    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 both the right steering tube 
assembly and the airplane structure, during full rudder pedal 
actuation.
    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 would affect 928 airplanes in the 
U.S. registry.
    We estimate the following costs to do the proposed inspection:

[[Page 60292]]



------------------------------------------------------------------------
                                                             Total cost
          Labor cost             Parts cost    Total cost      on U.S.
                                              per airplane    operators
------------------------------------------------------------------------
1 work-hour x $80 per hour =            N/A           $80       $74,240
 $80..........................
------------------------------------------------------------------------

    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 airplanes that may need 
this replacement:

------------------------------------------------------------------------
                                                             Total cost
                 Labor cost                    Parts cost   per airplane
------------------------------------------------------------------------
0.5 work-hour x $80 per hour = $40..........         $123          $163
------------------------------------------------------------------------

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); and
    3. 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.

Examining the AD Docket

    You may examine the AD docket that contains the proposed AD, the 
regulatory evaluation, any comments received, and other information 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 Docket Office (telephone (800) 647-5527) 
is located at the street address stated in the ADDRESSES section. 
Comments will be available in the AD docket shortly after receipt.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, 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.


Sec.  39.13  [Amended]

    2. The FAA amends Sec.  39.13 by adding the following new AD:

Cessna Aircraft Company: Docket No. FAA-2007-29138; Directorate 
Identifier 2007-CE-073-AD.

Comments Due Date

    (a) We must receive comments on this airworthiness directive 
(AD) action by December 24, 2007.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to the following airplane models and serial 
numbers that are certificated in any category:

------------------------------------------------------------------------
             Models                             Serial No.
------------------------------------------------------------------------
172R...........................  17281188 through 17281390.
172S...........................  172S9491 through 172S10489.
------------------------------------------------------------------------

Unsafe Condition

    (d) This AD results from 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 detect and correct chafing of the fuel 
return line assembly, which could result in fuel leaking under the 
cabin floor and fuel vapors entering the cabin. This condition could 
lead to fire under the floor or in the cabin area.

Compliance

    (e) To address this problem, you must do the following, unless 
already done:

    Note: The requirements of this AD take precedence over the 
actions required in the service information.


----------------------------------------------------------------------------------------------------------------
               Actions                             Compliance                            Procedures
----------------------------------------------------------------------------------------------------------------
(1) Inspect the fuel return line      Within the next 100 hours time-in-    Follow Cessna Service Bulletin SB07-
 assembly (Cessna part number (P/N)    service (TIS) after the effective     28-01, dated June 18, 2007.
 0500118-49 or FAA-approved            date of this AD or within the next
 equivalent P/N) for chafing.          12 months after the effective date
                                       of this AD, whichever occurs first.

[[Page 60293]]

 
(2) If chafing is found in the        Before further flight after the       Follow Cessna Service Bulletin SB07-
 inspection required in paragraph      inspection required in paragraph      28-01, dated June 18, 2007.
 (e)(1) of this AD, replace the fuel   (e)(1) of this AD where evidence of
 return line assembly (Cessna P/N      chafing was found.
 0500118-49 or FAA-approved
 equivalent P/N).
(3) Inspect for a minimum clearance   Before further flight after:          Follow paragraph 6 of the
 of 0.5 inch between the following    (A) The inspection required in         Instructions section of Cessna
 parts throughout the entire range     paragraph (e)(1) of this AD if no     Service Bulletin SB07-28-01, dated
 of copilot rudder pedal travel and    chafing is found; or.                 June 18, 2007. This AD requires a
 adjust the clearance as necessary:   (B) The replacement required in        minimum clearance of 0.5 inch.
                                       paragraph (e)(2) of this AD..
    (i) The fuel return line
     assembly (Cessna P/N 0500118-49
     or FAA-approved equivalent P/N)
     and the steering tube assembly
     (Cessna P/N MC0543022-2C); and
    (ii) The fuel return line
     assembly (Cessna P/N 0500118-49
     or FAA-approved equivalent P/N)
     and the airplane structure.
----------------------------------------------------------------------------------------------------------------

Alternative Methods of Compliance (AMOCs)

    (f) 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. Send information to 
ATTN: Trenton Shepherd, Aerospace Engineer, 1801 Airport Road, Room 
100, Wichita, Kansas 67209; telephone: (316) 946-4143; fax: (316) 
946-4107; e-mail: trent.shepherd@faa.gov. Before using any approved 
AMOC on any airplane to which the AMOC applies, notify your 
appropriate principal inspector (PI) in the FAA Flight Standards 
District Office (FSDO), or lacking a PI, your local FSDO.

Related Information

    (g) To get copies of the service information referenced in this 
AD, contact Cessna Aircraft Company, Product Support, P.O. Box 7706, 
Wichita, Kansas 67277; telephone: (316) 517-5800; fax: (316) 942-
9006. To view the AD docket, go to U.S. Department of 
Transportation, Docket Operations, M-30, West Building Ground Floor, 
Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC 20590, or 
on the Internet at http://www.regulations.gov. The docket number is 
Docket No. FAA-2007-29138; Directorate Identifier 2007-CE-073-AD.

    Issued in Kansas City, Missouri, on October 17, 2007.
David R. Showers,
Acting Manager, Small Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. E7-20862 Filed 10-23-07; 8:45 am]
BILLING CODE 4910-13-P