The ESDU Aircraft Noise Series provides a range of methods for predicting aircraft noise levels. ESDU 09009 provides an overview of the extent to which currently-available prediction methods can meet the particular circumstances for which the user may desire to perform a prediction. All of the methods incorporated in the ESDU Aircraft Noise Series are included in this survey. ESDU 09009 is a companion Item to ESDU 02020 which provides an introduction to the main sources of aircraft noise@ aircraft noise transmission@ modifying effects and to subjective response. Together@ these two Items provide an overview of aircraft noise which may be particularly useful to those new to the subject.