United states securities and exchange commission

 

		Gross value								Accumulated depreciation								Net carrying value
		At December 31, 2016				At December 31, 2015				At December 31, 2016				At December 31, 2015				At December 31, 2016				At December 31, 2015
Leasehold improvements to flight equipment		Ps.	1,709,868			Ps.	1,483,344			Ps.	(1,386,844	)		Ps.	(982,187	)		Ps.	323,024			Ps.	501,157
Pre-delivery payments			1,206,330				1,583,835				—				—				1,206,330				1,583,835
Aircraft parts and rotable spare parts			393,522				285,323				(137,712	)			(105,376	)			255,810				179,947
Aircraft spare engines			323,025				—				(1,337	)			—				321,688				—
Construction and improvements in process			255,374				140,926				—				—				255,374				140,926
Standardization			176,975				155,021				(94,864	)			(71,135	)			82,111				83,886
Constructions and improvements			120,886				86,067				(85,873	)			(67,865	)			35,013				18,202
Computer equipment			24,172				27,075				(16,972	)			(22,880	)			7,200				4,195
Workshop tools			20,500				16,259				(15,915	)			(11,444	)			4,585				4,815
Electric power equipment			14,818				19,457				(7,890	)			(10,424	)			6,928				9,033
Communications equipment			9,261				8,641				(5,706	)			(4,877	)			3,555				3,764
Workshop machinery and equipment			7,240				7,108				(3,622	)			(2,929	)			3,618				4,179
Motorized transport equipment platform			5,703				5,576				(4,346	)			(4,250	)			1,357				1,326
Service carts on board			5,403				5,367				(4,645	)			(3,914	)			758				1,453
Office furniture and equipment			36,310				28,101				(18,653	)			(15,169	)			17,657				12,932
Total		Ps.	4,309,387			Ps.	3,852,100			Ps.	(1,784,379	)		Ps.	(1,302,450	)		Ps.	2,525,008			Ps.	2,549,650