As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAXI, FLAPS SELECTED 15 DEGREES. FLAP INDICATOR GOES FROM 15 DEGREES TO 0 DEGREES EVERY MINUTE. GREEN BARS DISAPPEAR WHEN FLAPS ARE AT 0 DEGREES. THEY REAPPEAR AT FLAP 15. NO MAP INDICATION, JUST ONE CHIME ALERT. AS WE TAXIED BACK, ADVANCED SWS/FLAP ON MAP.REPLACED FLAP SELECTOR AND ALSO REPLACED FLAP ANNUNCIATOR ASSEMBLY. CYCLED FLAPS SEVERAL TIMES. OPS CHECK GOOD.