Friday, March 8, 2013

DGCA/CESSNA 172/ 48


SUBJECT : This AD is prompted by report of chafing of new configuration of fuel line return assembly, which was caused by the fuel line assembly rubbing against the right steering tube assembly during rudder pedal actuation.
Reference : FAA AD 2013-03-15 Cessna Aircraft Company: 
(a) Effective DateThis AD is effective March 19, 2013.
(b) Affected : ADs None.
(c) Applicability : Cessna airplanes, certificated in any category:
(1) Model 172R, serial numbers (S/N) 17281573 through 17281616; and
(2) Model 172S, S/N l72S11074 through 172S11193.
(d) Subject JASC/ATA Code 2820, Aircraft Fuel Distribution System.
(e) Unsafe Condition This AD was prompted by reports of chafing of a new configuration of the fuel return line assembly, which was caused by the fuel return line assembly rubbing against the right steering tube assembly during rudder pedal actuation. We are issuing this AD to correct the unsafe condition on these products.
(f) ComplianceComply with this AD within the compliance times specified, unless already done.
(g) Inspect the Fuel Return Line Assembly
        At whichever of the following compliance times that occurs later, inspect the fuel return line
assembly (Cessna part number (P/N) 0516031-1) for damage following the Accomplishment
Instructions section of Cessna Aircraft Company Service Bulletin SEB-28-01, dated September 21,2012.
(1) At the next annual inspection after March 19, 2013 (the effective date of this AD);
(2) Within the next 100 hours time-in-service (TIS) after March 19, 2013 (the effective date of
this AD); or
(3) Within the next 12 calendar months after March 19, 2013 (the effective date of this AD).(h) Replace the Fuel Return Line Assembly
          If you find evidence of damage of the fuel return line assembly (Cessna P/N 0516031-1) as a result of the inspection required by paragraph (g) of this AD, before further flight, replace the fuel return line assembly (Cessna P/N 0516031-1) following the Accomplishment Instructions section of Cessna Aircraft Company Service Bulletin SEB-28-01,  Sept 21, 2012.
(i) Install the Fuel Return Line Assembly If you find no evidence of damage of the fuel return line assembly (Cessna P/N 0516031-1) as a result of the inspection required by paragraph (g) of this AD, before further flight, reinstall the fuel return line assembly (Cessna P/N 0516031-1) following the Accomplishment Instructions section of Cessna  SB SEB-28-01,  Sept 21, 2012.
(j) Install Forward and Aft Fuel Return Line Support Clamps and Brackets
After installing the fuel return line assembly as required by replacement in paragraph (h) of this
AD or installation in paragraph (i) of this AD, before further flight, install the forward and aft fuel
return line support clamps and brackets following the Accomplishment Instructions section of Cessna  SEB-28-01, dated Sept 21, 2012.
(k) Inspect for a Minimum Clearance Between Certain Parts
        After the installation required by paragraph (j) of this AD, before further flight, inspect for a
minimum clearance between the following parts throughout the range of copilot pedal travel. The requirements of this AD take precedence over the actions required in the Accomplishment
Instructions section of Cessna Aircraft Company Service Bulletin SEB-28-01, dated September 21,2012:
(1) A minimum clearance of 0.5 inch between the fuel return line assembly (Cessna P/N
0516031-1) and the steering tube assembly (Cessna P/N MC0543022-2C); and
(2) Visible positive clearance between the fuel return line assembly (Cessna P/N 0516031-1) and the airplane structure.
(l) Adjust Clearance for Fuel Return Line Assembly
         If you find any clearance less than the minimum clearance required by paragraph (k) of this AD,before further flight, adjust to the minimum clearance required by paragraph (k) of this AD.




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