Asset Depreciation Issue

Hello Friends

We use lsmw as91 and as94 for an old assets migration.

The depreciation runs correctly but for 10 assets maybe we didint charge the year accumulated depreciation 2009(january to march). Last depreciation date 03.2009.

So in asset explorer we see in april depreciation for this 10 assets the sumatory january to april, and since may everything runs normal.

Should appears at 31.12.2009 January to March and in april the month depreciation.

Can I fix it? Because i have to modify the master data but the status field for accumulated depreciation 2009 is of course in display.

Thanks a lot