Airworthiness Directive · Amendment 39-17350 · Aircraft fuel distribution system
Cessna Aircraft Company Airplanes
This AD applies to the following Cessna Aircraft Company (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.
We are adopting a new airworthiness directive (AD) for certain Cessna Aircraft Company Models 172R and 172S airplanes. 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. This AD requires you to install the forward and aft fuel return line support clamps and brackets; inspect for a minimum clearance between the fuel return line assembly and the steering tube assembly and clearance between the fuel return line assembly and the airplane structure; and, if any damage is found, replace the fuel return line assembly. We are issuing this AD to correct the unsafe condition on these products.
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).
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, dated September 21, 2012.
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 Aircraft Company Service Bulletin SEB-28-01, dated September 21, 2012.
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 Aircraft Company Service Bulletin SEB-28-01, dated September 21, 2012.
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.
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.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
