What was found
(CAN) AFTER TAKE-OFF, WHEN RAISING FLAPS FROM 100 TO 00, PILOT FELT A RELEASE OF TENSION AND A/C BANKED LT, UNTIL FLAP HANDLE LOCKED IN AT 00 POSITION. PILOT CHECKED FLT CONTROLS & ALL APPEARED NORMAL, PILOT SUSPECTED SOMETHING WRONG WITH FLAPS. A/C FLOWN TO BASE, & BEFORE LANDING, PILOT DECIDED TO CHECK FLAPS. AS SOON AS FLAP HANDLE MOVED FROM 00 LATCH TOWARDS 100 LATCH A/C WANTED TO BANK LT AGAIN, SO PILOT SET FLAPS BACK TO 00 & DID AN UNEVENTFUL FLAPLESS LANDING. MX NOTIFIED & UPON INSPECTION OF FLAP SYSTEM, FOUND TABS OF A PULLEY BRACKET ON A MAIN BULKHEAD AT STA 65.33, HAD BROKEN AWAY.