Answer:
Just impact the Balance Sheet
Step-by-step explanation:
I'm not sure how can you sell something at a loss when its value is $0. Did you pay someone to take the asset? Once the asset has been fully depreciated, its value is $0, the company cannot assign any more expenses to it, it cannot be worth -$anything.
It definitely will not have any impact on the income statement, nor cash flows, since obviously if you had sold the asset (worth $0) for $1 at least, you should report a gain.
I'm not sure exactly how this can happen, but if the company accepted a liability in exchange for someone taking the asset away. It is the only way you can sell something for a negative price. Since liabilities would increase, the accumulated depreciation should be reversed to balance the equation. So the balance sheet might be affected in a weird way.