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Expendable parts and supplies
 12 Months Ended
Dec. 31, 2023
Classes of current inventories [abstract]  
Expendable parts and supplies
11. Expendable parts and supplies
Expendable parts and supplies are mainly related to maintenance and repair of flight equipment, and are carried at the lower of the average acquisition cost or replacement cost.
20232022
Material for repair and maintenance$111,938 $88,276 
Other inventories4,768 5,158 
116,706 93,434 
Allowance for obsolescence(102)(102)
$116,604 $93,332 
Expendable parts and supplies recognized when used as an expense in the accompanying consolidated statement of profit or loss under “Maintenance, materials and repairs” amount to $34.7 million, (2022: $25.4 million and, 2021: $22.0 million).