What was found
"APU OIL QTY" STATUS MESSAGE SHOWS ON POWER UP. MAT SHOW MESSAGE 49-12860 ACTIVE. EICAS APU OIL QUANTITY INDICATION BLANK, TRIED TO CLEAN OIL QTY SENSOR, NO HELP. APU OIL QUANTITY CHECKED BY SIGHT GAUGE. SHOWS FULL IAW MEL. PN: 295-0002. ALSO O-RING 362-2029. RECONNECTED CONNECTOR PLUG AT FIREWALL BUT NO HELP AND QTY IND BLANK. CHECKED OIL QTY BY SIGHT GAUGE FOUND FULL. LM INFO: SENSOR 295-0002 ON AOG W3742. O-RING 362-2029 ON AOG E5000, FLT 6921-30. REPLACED OIL QUANTITY SENSOR.