As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN FLAPS SELECTED 45 DEGREES, INBOARD PAIR STAYED AT 25 DEGREES AND OUTBOARD PAIR SHOWED APPROX 38 DEGREES. WHEN FLAPS SELECTED 25 DEGREES OUTBOARD PAIR SHOW TO BE AT APPROX 20 DEGREES. DISAGREEMENT WHEN FLAPS SELECTED 45 DEGREES. CLEANED CANNON PLUGS AND ROLLERS AND CYCLED FLAPS SEVERAL TIME. OPS CHECK GOOD ON GROUND. TROUBLESHOOTING ON GOING.