104 - ATPL - An aeroplane which has a maximum certificated take-off mass over 5700 kg, shall be equipped with a cockpit voice recorder capable of retaining information recorded during at least the last:

Question 104 - Operational Procedures - ATPL - Airline Transport Pilot license

30 minutes or 2 hours of its operation, depending upon the date of the first issue of its individual Certificate of Airworthiness.

25 hours of its operation.

20 hours of its operation.

30 minutes or 1 hour of its operation, depending upon the date of the first issue of its individual Certificate of Airworthiness.