What was found
TE FLAP ASYM DURING 15 TO 20 EXTN ON APP. SPD 180IAS. PER CREW VERBAL EICAS MSG CLEARED AND BOTH SIDES WERE AT FLAPS 20. T/S PER FIM 27-51 FAULT TREE 805. FSEU 1 HAS RT FLAP XMT AS EXISTING FAULT. LEG 0 FAULT HISTORY SHOWS RT FLAP DRIVE FAULT MSG 315, FDE:FLAP ASYMETRY. FOUND LEFT O/B AND RIGHT O/B FLAP TRANSMISSIONS OVERLOAD INDICATORS POPPED. ALSO FOUND RIGHT OUTBOARD TORQUE TUBE CAN BE MANUALLY ROTATED BY HAND. NO FAULTS ON FSEU 2 OR FSEU 3. PER TECH SUPPORT, RECOMMEND REPLACING BOTH TRANSMISSIONS. UPDATED MATERIALS LIST SEE L/P 4828663 FOR REPLACEMENT OF TORQUE TUBE TO # 8 TRAILING EDGE FLAP TRANSMISSION, L/P 4825478 FOR REPLACEMENT OF # 1 FLAP TRANSMISSION AND L/P 4825482 FOR REPLACEMENT OF # 8 FLAP TRANSMISSION. PERFORMED OPERATIONAL TEST OF TRAILING EDGE FLAP SYSTEM AS PER MM-27-51-00-715-001. ALL CHECKS GOOD UPDATE FOR SFR