As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE APPROACH FLAPS WERE AT 20 DEGREES. WHEN F/O CALLED FOR FLAPS 30, THE T/E FLAP DISAGREE LIGHT ILLUMINATED & THE FLAPS WOULD NOT EXTEND BEYOND 20. [07-20-07] REMOVED AND REPLACED FLAP/SLAT ELECTRONIC UNIT IN REF TO M/M 27-51- 01-2. OPS CHECKS GOOD. NO FURTHER FAULTS NOTED.