Incident to the Airbus A320 registered 9M-AJK operated by Airasia on 14/01/24 in cruise

Preliminary data provided by local authorities:

Events requiring the emergency use of oxygen by the flight crew.

General information
Local date	14/01/2024
Responsible entity	Thailand - AIB
State or area of occurrence	Thailand
Location	En route
Human consequences	None
Aircraft consequences	None
Occurrence class	Incident
File number	BEA2024-0017

Flight Information
Aircraft category	Aeroplane - Large aeroplane
Operator	Malaysia - Airasia X Sdn Bhd
Manufacturer / Model	AIRBUS - A320
Aircraft Registration	9M-AJK
State of registry	Malaysia
Last departure point	India - VOHS:HYDERABAD INTERNATIONAL AIRPORT (RAJIV GANDHI INTERNATIONAL AIRPORT SHAMSHABAD, HYDERABD)
Planned destination	Malaysia (Peninsular) - WMKK (KUL): Kuala Lumpur/Intl
Flight phase	En route
Serial number	6088
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.