P - Banco Security

3 2 . D E P R E C I A T I O N , A M O R T I Z A T I O N A N D I M P A I R M E N Ta) Depreciation and amortizationAs of December 31, 2010 and 2009, the effect of amortization and depreciation expense by type of asset is as follows:At December 312010At December 312009MCh$ MCh$Depreciation of property, plant and equipment (1,232) (1,274)Amortization of intangibles (1,470) (1,161)Impairment:Investment instruments - -Property, plant and equipment - -Intangibles - -Total depreciations, amortizations and impairment (2,702) (2,435)3 3 . O T H E R O P E R A T I N G I N C O M E A N D E X P E N S E Sa) Other operating incomeDetails of operating income in the consolidated statement of income are as follows:At December 312010At December 312009MCh$ MCh$Income from assets received in lieu of payment 247 443Release of provisions for contingencies 611 439Income from sale of property, plant and equipment 228 320Rent received 244 253Recovery of assets received in lieu payment written-off 248 566Recovery of expenses 571 528Other income 860 1,436Total other operating income 3,009 3,985b) Other operating expensesDetails of operating expenses in the consolidated statement of income are as follows:At December 312010At December 312009MCh$ MCh$Provisions and expenses for assets received in lieu of payment (2,091) (1,519)Provisions for contingencies (945) (1,249)Operating write-offs (875) (512)Other expenses (408) (230)Total other operating expenses (4,319) (3,510)