Serious incident to the A320 registered HS-VKC operated by Thai Vietjet Air on 09/04/2022 at Suvarnabhumi

Preliminary data based on the notification from the Thai authorities:

Flight crew noticed avionic smoke during climb passing 4,000 ft.The aircraft returned to land at Suvarnabhumi Airport.

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General information
Local date	09/04/2022
Responsible entity	Thailand - AIB
State or area of occurrence	Asia - Thailand
Location	AD Suvarnabhumi
Human consequences	None
Aircraft consequences	None
Occurrence class	Serious incident
File number	BEA2022-0175

Flight Information
Aircraft category	Fixed Wing - Aeroplane - Large Aeroplane - Large Aeroplane
Operator	Thailand (Thai Vietjet Air Joint Stock Co.)
Manufacturer / Model	AIRBUS - A320
Aircraft Registration	HS-VKC
State of registry	Thailand
Last departure point	Thailand - VTBS (BKK): Bangkok/Suvarnabhumi International
Planned destination	Thailand - VTSS (HDY): Songkhla/Hat Yai
Flight phase	En route
Serial number	6878
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.