The holder of the certificate of registration for an Australian aircraft must keep an aircraft logbook for airworthiness.
The logbook must be available to us if required and to people maintaining the aircraft.
All logbook entries must be correct and not misleading.
Record keeping
Aircraft logbooks for airworthiness must include:
- the identity of the aircraft
 - the engine type and model
 - the propeller fitted to the aircraft
 - whether you have equipped the aircraft for IFR operations, VFR (Day) operations or VFR (Night) operations
 - the aircraft’s maintenance program
 - any approved variations or exemptions to the aircraft’s maintenance schedules
 - records and certifications of aircraft maintenance
 - when (including date) you have installed or removed the engine (and propeller, if applicable)
 - when (including date) you have installed or removed any time-lifed components
 - compliance with all applicable Airworthiness Directive (AD)
 - any changes to the empty weight of the aircraft.
 
You must number all sections with certification pages.
For a full list of all contents requirements for aircraft logbook, read CAAP 50A/B-1(1.1) - Aircraft logbooks and alternate to aircraft logbooks.
We recommend you keep additional records of aircraft maintenance outside of your logbook. This will help you prove aircraft airworthiness if you misplace or lose it.
Alternative aircraft logbook
We may approve the use of an alternative to an aircraft logbook or a section of an aircraft logbook. Our approval must be in writing.
If we approve an alternative, you must:
- keep a record of the aircraft maintenance
 - make all records or documents available to us and the people maintaining the aircraft.
 
Lost aircraft logbooks
Keeping a record of your aircraft maintenance is your responsibility. If you’ve lost your aircraft logbook, follow the steps below.