French aviation experts on crash of Air Algerie plane that crashed in Mali with 116 on board

The transcript discusses the reduction in speed to 160 knots and the challenges with unusable data recordings. Efforts are being made to extract information from magnetic recordings, but it's uncertain if they will succeed. The aircraft did not disintegrate mid-flight, though damage cannot be ruled out. Pilots conduct pre-flight tests, but these do not guarantee the aircraft's functionality. More thorough testing is needed. The magnetic tape issues are unique and depend on the conditions of use, making it a rare case.

Quels tests sont effectués par les pilotes avant de prendre l'avion?

Quelles conditions peuvent affecter l'utilisation de l'enregistreur?