S10-3 Computing first-year depreciation and book value At the beginning of the year, Austin Airlines purchased a used airplane for $33,500,000. Austin Airlines expects the plane to remain useful for five years (4,000,000 miles) and to have a residual value of $5,500,000. The company expects the plane to be flown 1,100,000 miles during the first year. Requirements 1. Compute Austin Airlines's first-year depreciation expense on the plane using the following methods: a. Straight-line b. Units-of-production c. Double-declining-balance 2. Show the airplane's book value at the end of the first year for all three methods. S10-4 Computing second-year depreciation and accumulated depreciation At the beginning of 2016, Air Asia purchased a used airplane at a cost of $40,000,000. Air Asia expects the plane to remain useful for eight years (5,000,000 miles) and to have a residual value of $5,000,000. Air Asia expects the plane to be flown 1,200,000 miles the first year and 1,400,000 miles the second year. Requirements 1. Compute second-year (2017) depreciation expense on the plane using the following methods: a. Straight-line b. Units-of-production c. Double-declining-balance 2. Calculate the balance in Accumulated Depreciation at the end of the second year for all three methods.