As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
POSSIBLE FUME EVENT. BURNT SMELL STRONGER IN THE BACK OF AIRPLANE DISCOVERED AT THE GATE WILL ALL THE DOORS CLOSED APU BLEED ON PACKS ON. FWD AFT PAX DOORS WERE OPEN WHEN FA REPORTED THE ODOR. AN EXTERNAL POWER CART WAS NEAR ACFT RUNNING. IT IS BELIEVED THE ODOR IF FRON OUTSIDE OF ACFT.PERFORMED PACK AS A PRECAUTION NO ODOR AT THIS TIME IAW TSM 05-50-00-810-831-LEVEL A DECOMINATION PERFORMED. NOT AN SDR. :