I was asked to seek for fraud transaction regarding to Improper Asset Valuation in the excel journal entries, so far so good except for this transaction which i don't really get :

I could see that the last three are revaluation increment for the 3 equipments, plus aren't equipments suppose to be tangible non-current assets why is it amortization?

Any fraud reasons behind these?? :D

17400 Machinery and Equipment 5/05/2006 Used Compressor and Nailer m J2943 $1.00 $0.00 5660 Amortization Expense 5/05/2006 Used Compressor and Nailer m 12943 $0.00 $1.00 17400 Machinery and Equipment 5/05/2006 Used wheel Loader m 12945 $1.00 $0.00 5660 Amortization Expense 5/05/2006 Used wheel Loader m J2945 $0.00 $1.00 17400 Machinery and Equipment 5/05/2006 Used Motor Grader m J2947 $1.00 $0.00 5660 Amortization Expense 5/05/2006 Used Motor Grader m 12947 $0.00 $1.00 17400 Machinery and Equipment 25/05/2006 Revaluation of Refurbished Compressor and Nailer m 12955 $100,000.00 $0.00 17400 Machinery and Equipment 25/05/2006 Revaluation of Wheel Loader m J2957 $25,000.00 $0.00 17400 Machinery and Equipment 25/05/2006 Revaluation of Motor Grader m J2959 $150,000.00 $0.00