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86 ENAV – 2014 Financial Statements
The following table sets out the estimated useful lives of the main
categories of property, plant and equipment:
Category Description Useful life (years)
Buildings
Plant and machinery Buildings 25
Buildings - extraordinary maintenance 25
Industrial and commercial 10
equipment Light constructions 10
Other assets Radiophonic systems
7
Recording systems 10
Synchronization systems and control centers 7
10
Manual and electromechanical centers
Electronic centers and systems 10
Radio bridges. A,F, and amplification 11
equipment
10
Power supply systems
7
Signaling systems and runway equipment 7
10
Miscellaneous small equipment
Electronic machines and telephone systems 5
Ordinary office furniture and machines 4
Data processing equipment including 15
computers
10
Motor vehicles. motorcycles and similar
Corporate aircraft
Equipment for corporate aircraft and radio-
electric measurement systems
