As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WING ANTI ICE SWITCH WILL NOT STAY IN THE ON POSITION R/R OVERHEAD ANTI ICE CONTROL PANEL REF AMM 30-11-01. OPS CHECK GOOD. OK FOR SERVICE PARTS USED: 19-3011-9-0003,QTY :1 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1309187 SN OFF 0729 PANEL, CONTROL, OFF 19-3011-9-0003 0729 ON 19-3011-9-0003 0689