CFM International's Leap turbofan deliveries slipped 13% year on year in the first quarter to 319 units amid stubborn supply ...

causing fuel to back up near the nozzle and trigger an early shutoff.” A third possible cause of blowback, says Zabitis, is the size of the tank opening: “In some cases, a filler neck is ...

Fuel enters through a series of small tubes ... could burn through the jetpipe or damage the end of the exhaust nozzle. Designers often also add pilot lights downstream from the ignition spot ...