Serious incident to the Airbus A320 registered PK-AZL operated by Indonesia Airasia on 08/02/2024 during cruise.

Preliminary data received from local authorities

While cruising at flight level (FL) 350 experienced a cabin pressurization problem, the flight crew performed an emergency descent to FL100. The flight was continued and landed safely at Denpasar.

General information
Local date	08/02/2024
Responsible entity	Indonesia - AIB
State or area of occurrence	Indonesia
Location	En route
Human consequences	None
Aircraft consequences	None
Occurrence class	Serious incident
File number	BEA2024-0039

Flight Information
Aircraft category	Aeroplane - Large aeroplane
Operator	Indonesia - Indonesia Airasia
Manufacturer / Model	AIRBUS - A320
Aircraft Registration	PK-AZL
State of registry	Indonesia
Last departure point	Indonesia - WIII (CGK): Jakarta/Soekarno Hatta Intl
Planned destination	Indonesia - WADD (DPS) : Bali Intl
Flight phase	En route
Serial number	3582
Operator Type AG
Operation Type	Commercial Air Transport - Passenger - Airline

BEA is the French air safety investigation authority for civil aviation. The sole objective of the investigation is to improve air safety. It is intended neither to apportion blame nor to assess responsiblity.