What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Narrative: pilot report on log page 60253: loud noise like a compressor stall sounded shortly after starting taxi with both engines running. Aft flight attendant reported over interphone that rear cabin was filling up with smoke - aircraft evacuated. There were no abnormal indications on the flight deck instruments. There appeared to be no fire on the aircraft. Appears blown duct. Found APU pneumatic duct p/n 13-0888 ruptured at sta. 1350 on l.h. sidewall in no. 3 cargo compartment. Installed new pneumatic duct, leak checked, system found okay. This incident closed.
As the FAA filed it
NARRATIVE: PILOT REPORT ON LOG PAGE 60253: LOUD NOISE LIKE A COMPRESSOR STALL SOUNDED SHORTLY AFTER STARTING TAXI WITH BOTH ENGINES RUNNING. AFT FLIGHT ATTENDANT REPORTED OVER INTERPHONE THAT REAR CABIN WAS FILLING UP WITH SMOKE - AIRCRAFT EVACUATED. THERE WERE NO ABNORMAL INDICATIONS ON THE FLIGHT DECK INSTRUMENTS. THERE APPEARED TO BE NO FIRE ON THE AIRCRAFT. APPEARS BLOWN DUCT. FOUND APU PNEUMATIC DUCT P/N 13-0888 RUPTURED AT STA. 1350 ON L.H. SIDEWALL IN NO. 3 CARGO COMPARTMENT. INSTALLED NEW PNEUMATIC DUCT, LEAK CHECKED, SYSTEM FOUND OKAY. THIS INCIDENT CLOSED.