As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 1 - LAX - CLOSE TO TOP OF CLIMB FA CALLED AND SAID SMOKE IN ALL CABINS PERFORMED CHECKLIST AND RETURNED TO LAX. SMOKE CLEARED ON THE WAY BACK TO LAX. REPLACED ALL 3 COALESCER BAGS RAN ENGINES AND APU FOR LEAK CHECK COULD NOT DUPLICATE ON GROUND. OPS NORMAL, NO LEAKS FOUND. (M)