What was found
TE FLAP DISAGREE ON EICAS, ON APPROACH WHEN SELECTING FLAPS 1. RAN QRH. LANDED FLAPS 20 PER QRH. TROUBLESHOOT IAW ABOVE REFERENCES. AFTER INSPECTING ALL 8 FLAP TRANSMISSIONS, FOUND LEFT WING INBD FLAP INBD TRANSMISSION OVERLOAD INDICATOR TRIPPED AS WELL AS TRANSMISSION AND TORQUE LIMITER FLUIDS LOW. SERVICED BOTH AND RESET TRIPPED INDICATOR. OPERATED FLAPS FULL TRAVEL SEVERAL TIMES WITH NO MESSAGES OR FAULTS. OVERLOAD INDICATOR DID NOT TRIP. REFERENCE WRI 27-8648 FOR OIL OF TRIPPED INDICATOR. OK FOR SERVICE.