Airworthiness Directive · Amendment 39-8903 · Saab AB, Saab Aerosystems Airplanes
Saab AB, Saab Aerosystems Airplanes
This AD applies to Saab AB, Saab Aerosystems SAAB 340B.
The models as the FAA's AD index lists them. The serial ranges, installed parts and exceptions are in the AD itself: read it at the FAA.
This amendment adopts a new airworthiness directive (AD), applicable to certain SAAB Model SAAB 340B series airplanes, that requires replacement of the existing actuator assembly on the motor operated fuel valve assembly with a new, improved actuator assembly. This amendment is prompted by electromagnetic interference (EMI) tests, which indicate that the actuator assemblies of certain fuel shut-off valves may fail to function after exposure to EMI, such as lightning or high intensity radiated fields. The actions specified by this AD are intended to prevent loss of function of the fuel shut-off valves, which could result in unchecked fuel leakage or fuel imbalance after fuel system failure.
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
