As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT AILERON DID NOT DROOP WITH FLAPS SET TO 15. AICRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE FOUND R/H DROOP ANGLE GEAR BOX OUT OF ADJUSTMENT. ADJUSTED ITEM PER AMM 27-51-40, THEN CONDUCTED IN BOARD AILERON DROOP TEST PER AMM 27-11-00. DROOP SYSTEM TEST OK. NO FURTHER ACTION REQUIRED. AIRCRAFT RELEASED BACK IN SERVICE.