As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON SHORT FINAL, FLT CREW RECEIVED A FLAP FAILURE CAUTION MESSAGE WITH THE FLAPS TRAVEL STOPPING AT30 DEGREES. ACFT HAD POST MOD ACTUATORS INSTALLED AT THE LAST FLAP FAIL EVENT, BACK AT FEB 08,2008. THE FECU (52B AND 25C)CODES WERE RETRIEVED BY MAINT. IT WAS DECIDED TO CHANGE BOTH BPSU TO THE LATEST POST MOD P/N 855D100-13.THIS ACTION IS RECORDED IN TRAX UNDER DEFECT 860158 W.O 200857 NR-0001.