7.3 Recording system inspections shall be carried out as follows:
a) an analysis of the recorded data from the flight recorders shall ensure that the recorder operates correctly for the
nominal duration of the recording;
b) the analysis of the FDR or ADRS shall evaluate the quality of the recorded data to determine if the bit error rate
(including those errors introduced by recorder, the acquisition unit, the source of the data on the aeroplane and by the
tools used to extract the data from the recorder) is within acceptable limits and to determine the nature and distribution
of the errors;