As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU BLEED ON TAKE OFF AND LANDING. PERFORMED AS REQUIRED IAW MAINTENANCE. NO FUMES ON TAKE OFF UP TO 10000' JUST PRIOR TO LANDING F/A'S AT BOTH DOORS REPORTED A FAINT CHEMICAL ODOR. APU, NR 1 & 2 ENGINES, BLEED AIR USED SEPARATELY. RUNNING BOTH PACKS WITH BOTH ENGINES RUNNING NO ODOR OR FUMES NOTED ON GROUND. OK TO CONTINUE.