As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTS AILERON BINDS WHEN MOVING LT OR RT FROM CENTER AND POPS WHEN IT FINALLY MOVES. MAINTENANCE PERFORMED A SPRING FORCE CHECK AND FOUND NO DEFECTS. IAW INFO SERVICE LETTER, SUSPECT THE UPPER AILERON QUADRANT DETENT IS ALLOWING THE SWEDGE BALL TO POP, WHICH IS A KNOWN NUISANCE ITEM. REPLACED UPPER AFT AILERON QUADRANT. OPERATIONAL CHECK FLIGHT PERFORMED WITH NO DEFECTS NOTED.