The inspections described in this Aircraft Inspection handbook are NOT intended to replace any required inspection. Rather, they are intended to familiarize persons with the techniques generally applicable to aircraft inspections whether they be owners, pilots, student mechanics, or others with aviation interests.

The services of an appropriately rated certificated repair station, certificated mechanic, or the manufacturer must be utilized for all required inspections and whenever any inspection reveals a questionable condition. We emphasize the fact that reliable inspection capability comes only with experience, and the use of this handbook does NOT qualify an individual to make final airworthiness determinations...

Click here to read the full FAA Advisory Circular, Aircraft Inspection for the General Aviation Aircraft Owner - FAA AC20-106.