FAA-2012-1273 Fuel return line assembly

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.