What was found
FLT 5406 - STL - FLAPS DID NOT RETRACT FROM FLAPS 9 TO FLAPS 0 AFTER TAKEOFF. MAINTENANCE RESET THE FLAP SELECTOR BYPASS PEN.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLT 5406 - STL - FLAPS DID NOT RETRACT FROM FLAPS 9 TO FLAPS 0 AFTER TAKEOFF. MAINTENANCE RESET THE FLAP SELECTOR BYPASS PEN.