"I can tell if my spells cast normally. Tongues is working fine. Absent specific reason not to do that I'm also gonna cast a Summon once your airship is sinking slowly, try to get an air elemental and get it to stabilize and slow it down, but that might well not work if your nearby planes are different."

"I can tell if my spells cast normally. Tongues is working fine. Absent specific reason not to do that I'm also gonna cast a Summon once your airship is sinking slowly, try to get an extraplanar-entities-of-ontologically-basic-air-substance and get it to stabilize and slow it down, but that might well not work if your nearby planes are different."