FAA Sept. 18 issued six ADs, plus a correction dated Sept. 21.
The first affects GE Aircraft Engine Group (GEAE) CF6-45A series, CF6-50A, CF6-50C series and CF6-50E series turbofan engines and will go into effect Oct. 23. It requires replacing or remarking the compressor discharge pressure restoring spring assembly on certain main engine controls.
The second requires checking the pressure switch system of parking brakes on Airbus A300F4-605R and A300F4-622R airplanes and also will take effect Oct. 23.
The third concerns Rolls-Royce plc RB211 Trent 500 series turbofan engines and will take effect Oct. 3. It mandates replacement of the intermediate pressure compressor drums of nine part serial numbers.
The fourth affects Hawker Beechcraft model 400, 400A and 400T series airplanes and will take effect Oct. 23. It requires modifying the attachment fasteners on the engine cowling panels.
The fifth requires checking Turbomeca Arriel 2B1 Turboshaft engines for rupture of the constant delta pressure valve diaphragm and will take effect Oct. 3.
The sixth requires inspecting and re-orienting Hydrolok retaining pins on B/E Aerospace Skyluxe II (AA2) passenger seats and also will take effect Oct. 3.
Finally, the correction concerns inspecting blind rivets and the inboard end of the rear spar of Pacific Aerospace Corp. Model 750XL airplanes, effective Sept. 25.