Hi Annanya, welcome to the cove...
I just viewed some information with regard to Donabedian Model and in my understanding, it deals with the Patient Safety Management System.
I used google and find out this path - As a reference: http://www.ahrq.gov/research/finding...m/figure2.html
Regarding your query, if the said equipment were not functional it will definitely fall under the antecedent conditions. Said model looks like the same with process approach (turtle diagram), that you have the necessary inputs.
Hope this help.