What was found
(CAN) FLIGHT CREW REPORTED (FLAP DRIVE) CAUTION LIGHT ILLUMINATED FROM 2-3 SECONDS WHEN FLAPS SELECTED. MAINTENANCE INSPECTION FOUND FLAP SECONDARY DRIVE, IN WING CENTER SECTION, CORE HAD UNWOUND AND SEIZED CAUSING THE CASING TO ROTATE AND DAMAGED SUPPORT BRACKET AND TORQUE SENSOR. FLAP CORE APPEARED TO LACK LUBRICATION AND RUST WAS EVIDENT. FLAP SECONDARY FLEX SHAFT REPLACED. ALL OTHER FLAP SECONDARY DRIVES LUBRICATED. BRACKET AND TORQUE SENSOR DAMAGE REPAIRED. AIRCRAFT RETURNED TO SERVICE. FLAP SECONDARY DRIVE IS CLASSIFIED AS AN EXPENDABLE PART AND TIME ON PART NOT TRACKED. (TC NR 20070719009)