Typically, the FHA required inspections are completed by a registered civil engineer. And there are "skippy" engineers out there just like appraisers. Just heard of one that charged $600 for his inspection which consisted of five minutes of walking around the looking without any observation of underneath the home or footings, etc, etc. The homeowner was very upset. Since FHA loans are in a decline, there are fewer installations inspected by engineers then in the past. I don't have any data to support that opinion, but it just seems a logical sequence. Contact the state office as your first step, that will get you the direct information and a place to start.
The engineer's inspection for a FHA loan is not recorded. There could be circumstances where a property sells several times with FHA financing several years apart each time. No body knows where the engineer's inspection report is so then it has to be inspected by an engineer again for the new FHA loan. Both the Santa Ana Homeownership Center and myself have advised lenders, dealers, homeowners that they should record that enginner's inspection--but very, very, very few individuals have acted on that suggestion.