Above is the PP&E Balance sheet for American Airlines from 2018 (right column) to 2019 (left column).

A) What is Less accumulated depreciation and amortization and why is it negative under Operating property and equipment?

B) What could cause the total property and equipment, net to increase from 2018 (34,098) to 2019(34, 995)?

8,206 8,637 42,537 41,499 9,443 8,764 Operating property and equipment Flight equipment Ground property and equipment Equipment purchase deposits Total property and equipment, at cost Less accumulated depreciation and amortization Total property and equipment, net 1,278 51,541 1,674 53,654 (18,659) 34,995 (17,443) 34,098