AMC1 FCL 050
(c) Format of the record:
(1) details of flights flown under commercial air transport may be recorded
in a computerised format maintained by the operator. In this case an
operator should make the records of all flights operated by the pilot,
including differences and familiarisation training, available upon request
to the flight crew member concerned;
(2) for other types of flight, the pilot should record the details of the flights
flown in the following logbook format. For sailplanes and balloons, a
suitable format should be used that contains the relevant items
mentioned in (a) and additional information specific to the type of
operation.