What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
On taxi out the flight attendant, (fa) and passengers heard a loud noise and the smell of rubber burning. The fa notified the captain. The captain and first office also smelled the odor. The captain stop the aircraft on the taxiway. The captain asked the fa is there any smoke in the cabin. The fa informed the captain there was not any smoke in the cabin. The captain and first officer executed the immediate action items for cabin smoke/fire/fumes. The captain declared an emergency with ATC and requested fire trucks. The captain then commanded qrh procedure for smoke/fire/fumes. At the conclusion of the qrh procedure, the captain determined the aircraft was back to a safe state with fa, fire trucks, and first officer. The captain prepared for a possible emergency evacuation. The captain then discussed with dispatch, first officer, flight attendant, operations, and ATC the safest course of action to get the passengers safely back to the terminal. The captain then chose to deplane via air stairs and transport the passengers to the terminal via bus. The aircraft was towed back to the terminal.
As the FAA filed it
ON TAXI OUT THE FLIGHT ATTENDANT, (FA) AND PASSENGERS HEARD A LOUD NOISE AND THE SMELL OF RUBBER BURNING. THE FA NOTIFIED THE CAPTAIN. THE CAPTAIN AND FIRST OFFICE ALSO SMELLED THE ODOR. THE CAPTAIN STOP THE AIRCRAFT ON THE TAXIWAY. THE CAPTAIN ASKED THE FA IS THERE ANY SMOKE IN THE CABIN. THE FA INFORMED THE CAPTAIN THERE WAS NOT ANY SMOKE IN THE CABIN. THE CAPTAIN AND FIRST OFFICER EXECUTED THE IMMEDIATE ACTION ITEMS FOR CABIN SMOKE/FIRE/FUMES. THE CAPTAIN DECLARED AN EMERGENCY WITH ATC AND REQUESTED FIRE TRUCKS. THE CAPTAIN THEN COMMANDED QRH PROCEDURE FOR SMOKE/FIRE/FUMES. AT THE CONCLUSION OF THE QRH PROCEDURE, THE CAPTAIN DETERMINED THE AIRCRAFT WAS BACK TO A SAFE STATE WITH FA, FIRE TRUCKS, AND FIRST OFFICER. THE CAPTAIN PREPARED FOR A POSSIBLE EMERGENCY EVACUATION. THE CAPTAIN THEN DISCUSSED WITH DISPATCH, FIRST OFFICER, FLIGHT ATTENDANT, OPERATIONS, AND ATC THE SAFEST COURSE OF ACTION TO GET THE PASSENGERS SAFELY BACK TO THE TERMINAL. THE CAPTAIN THEN CHOSE TO DEPLANE VIA AIR STAIRS AND TRANSPORT THE PASSENGERS TO THE TERMINAL VIA BUS. THE AIRCRAFT WAS TOWED BACK TO THE TERMINAL.