AA45 CDG-JFK...turnaround 1/15

chrisnh · Fri Jan 15, 2016 1:43 pm

I have someone on AA45 from Paris to JFK which turned around over the Atlantic and went back to CDG. Anyone know why?

MSJYOP28Apilot · Sat Jan 16, 2016 1:05 am

APU went inop inflight and auto pilot had a problem. The flight crew declared an emergency but I am not sure why as those systems going inop generally dont warrant an emergency declaration unless there is a fire in the APU but in that case they wouldnt have diverted all the way back to CDG. Only way to know exactly what went on would be if you knew the pilot or dispatcher that had the discussion at the diversion time. Aircraft left CDG again two hours after landing so whatever was wrong had a fairly quick resolution once on the ground.

AAR90 · Sat Jan 16, 2016 1:12 pm

Right generator failure indication that eventually would not reset. Replaced the generator control unit and re-departed.

Quoting MSJYOP28Apilot (Reply 1):
APU went inop inflight and auto pilot had a problem.

The APU did not fail, it was turned off by the crew when the generator "reset." Multiple repeat right generator failures caused the crew to return to have it fixed.

MSJYOP28Apilot · Sat Jan 16, 2016 6:42 pm

Quoting AAR90 (Reply 2):
Multiple repeat right generator failures caused the crew to return to have it fixed.

Makes more sense now. The diversion write up didnt mention all that.

[Edited 2016-01-16 10:46:56]