Narrative:

After long maintenance delay during taxi out right engine start at fuel lever on. Lost duct pressure, got hung start. Discontinued start with fuel lever off and motor for 30 seconds. Flight attendant reported smell of smoke in cabin and smoke from right engine tailpipe. Returned to gate, but could not raise operations for gate assignment. Informed tower we may need emergency equipment to stand by if we don't get a gate soon. Although a PA was made to be calm and remain in seats, was aware that passenger may start evacuate/evacuation. Tower assigned gate and another flight told park crew on his headset that we needed park assist. Agents came running and parked us without further problem. Smoke cleared and all passenger deplane to terminal.

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Original NASA ASRS Text

Title: A B757-200 ON TAXI OUT HAD A HUNG START ON R ENG. FLT ATTENDANT RPTED SMOKE FROM TAILPIPE AND SMELL IN CABIN. RETURNED TO GATE.

Narrative: AFTER LONG MAINT DELAY DURING TAXI OUT R ENG START AT FUEL LEVER ON. LOST DUCT PRESSURE, GOT HUNG START. DISCONTINUED START WITH FUEL LEVER OFF AND MOTOR FOR 30 SECONDS. FLT ATTENDANT RPTED SMELL OF SMOKE IN CABIN AND SMOKE FROM R ENG TAILPIPE. RETURNED TO GATE, BUT COULD NOT RAISE OPS FOR GATE ASSIGNMENT. INFORMED TWR WE MAY NEED EMER EQUIP TO STAND BY IF WE DON'T GET A GATE SOON. ALTHOUGH A PA WAS MADE TO BE CALM AND REMAIN IN SEATS, WAS AWARE THAT PAX MAY START EVAC. TWR ASSIGNED GATE AND ANOTHER FLT TOLD PARK CREW ON HIS HEADSET THAT WE NEEDED PARK ASSIST. AGENTS CAME RUNNING AND PARKED US WITHOUT FURTHER PROB. SMOKE CLRED AND ALL PAX DEPLANE TO TERMINAL.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.