Estimated useful lives and residual values for property and equipment are summarized as follows:
Property and Equipment TypeEstimated Useful LifeResidual Value
Aircraft (1)
25 years20 %
Aircraft equipment
5-12 years
%
Aircraft partsFleet life10 %
Flight equipment leasehold improvementsLower of lease term or economic life%
Ground property and equipment
2-10 years
%
Leasehold improvements - otherLower of lease term or economic life%
Buildings on leased landLower of lease term or economic life%
(1) The Company is pursuing capital-light growth and as a result the estimated useful lives of certain Airbus A320 airframes were extended beyond 25 years.

Historical Timeline

Fiscal YearFiled
2025Feb 12, 2026Showing above
2024Feb 14, 2025
2023Feb 12, 2024

About PP&E Disclosures

The PP&E disclosure details a company's physical asset base — land, buildings, machinery, and equipment — along with the depreciation methods and useful life assumptions that determine how these costs flow through the income statement. Capitalization policy thresholds reveal management's judgment on the boundary between expense and asset, directly affecting both reported earnings and asset values.

Key signals: changes in estimated useful lives or depreciation methods can materially shift reported earnings without any operational change. Compare capital expenditures against depreciation expense — when capex consistently trails depreciation, the asset base may be aging and underinvested. Watch for large asset impairments or write-downs that signal overvalued carrying amounts. Asset retirement obligations reveal future environmental or decommissioning costs that are often underappreciated. Compare PP&E intensity (PP&E-to-revenue) against industry peers to assess capital efficiency and competitive positioning.