As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON APPROACH TO I/B T/E FLAPS WOULD NOT EXTEND IN NORMAL OR MANUAL MODE. POST LANDING INSPECTION DETERMINED NR 4 FLAP TRANSMISSION (I/B, I/B) WAS UNSERVICEABLE. THE UNIT WAS REPLACED THE FLAP SYSTEM RIG CHECKED AND FUNCTION TESTED. AIRCRAFT RETURNED TO SERVICE.