As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSTALLED REBUILT FLAP ACTUATOR IN RT OB POSITION; PN 1391T1008, SN 387AB. FLAP OPERATION WAS NORMAL. WHILE CHECKING AILERON TRAVELS IT WAS DISCOVERED THAT AILERON TRAVELS WERE LIMITED BY THE REBUILT FLAP ACTUATOR. A COVER PLATE ON THE FLAP ACTUATOR HAD BEEN INDEXED INCORRECTLY AND WAS INTERFERING WITH THE AILERON BELLCRANK. PROBABLE CAUSE; INCORRECT ASSY OF FLAP ACTUATOR. (K)