Spar Joiner

Verify no cracks, chips, or other such damage.

Propellers

Verify no cracks, chips or other such damage.

Verify light friction with spinner assembly.

Control Surfaces

Verify control surfaces are responsive to movement once a GPS fix/home point is acquired.

Motor

Verify the motor spins freely with no rubbing or grinding.

Pitot Tube

Verify the Pitot tube is not damage, clogged, or leaky.

Propellers

Inspect the propellers for wear and tear. Replace if the tips are worn down, the surface, lead, or trailing edges are no longer sufficiently smooth.

Motor

Verify the motor is not unusually loud, loose, rubbing or grinding.

Under Belly

Inspect any wear and tear to the underside of the aircraft from landing during normal use.

Control Surfaces

Inspect the control surfaces and linkages.

Verify the surfaces are intact.

Verify the linkages are connected to the control horns and that they are not loose or sloppy.

Batteries

Inspect the battery for any damage or swelling.

Airframe

Inspect the aircraft for cracks, holes, tears, delamination, separation, or other such damage.

Batteries

Inspect the battery for damage or swelling. Depending on how many cycles the battery has, it may be approach mid to late lifespan.

Consider replacing.

Airframe

Inspect the aircraft for cracks, holes, tears, delamination, separation, or other such damage.

Consider a refurbishment.