Inspect work of aircraft mechanics performing maintenance, modification, or repair and overhaul of aircraft and aircraft mechanical systems to ensure adherence to standards and procedures.
Examine aircraft access plates and doors for security.
Examine landing gear, tires, and exteriors of fuselage, wings, and engines for evidence of damage or corrosion and the need for repairs.
Examine maintenance records and flight logs to determine if service and maintenance checks and overhauls were performed at prescribed intervals.
Inspect new, repaired, or modified aircraft to identify damage or defects and to assess airworthiness and conformance to standards, using checklists, hand tools, and test instruments.
Approve or deny issuance of certificates of airworthiness.
Conduct flight test programs to test equipment, instruments, and systems under a variety of conditions, using both manual and automatic controls.
Investigate air accidents and complaints to determine causes.
Start aircraft and observe gauges, meters, and other instruments to detect evidence of malfunctions.
Recommend replacement, repair, or modification of aircraft equipment.