As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
F/A REPORTED, DENSE ACRID SMOKE IN CAB AFTER T/O. SMOKE CONCENTRATED FROM ROWS 4 TO 10. DENSE FROM 4 FT ABOVE FLOOR TO CEILING CAB LIGHTS WERE LOW. SMOKE APPEARED TO BE GREY OR WHITE. CHANGED LT 35 DEGREE VLV AND SENSOR. RUN UP BOTH PACKS WITH ENGINE. FOUND SYSTEM NORMAL.