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Besides crew and fuel, the airplane is ETOPS (extended two engine overwater procedures, regs and such). As I recall, returning to the gate in a situation like this would require an extensive preflight inspection of the plane....by maintenance. Good luck getting those guys to even start an unscheduled event such as that within 45 minutes. Can't remember how long those inspections are.
As CNN has previously reported, the American Airlines flight continued on to London's Heathrow airport. The flight voice recorders on both aircraft were overwritten, meaning investigators can't hear what was said in the cockpit at the time of the incident.
For those in COMAIR:
I understand why a CVFDR (black box) would just continuously record over itself, but why aren't they required to last longer than a typical day or two of flying?
For those in COMAIR:
I understand why a CVFDR (black box) would just continuously record over itself, but why aren't they required to last longer than a typical day or two of flying?
(Not in COMAIR myself, but I’m familiar with the systems on the P-8). Last time I saw the FARs regarding this it was that the black boxes are only required to hold around 30 minutes of recording. Many FDR systems hold much longer anyways (P-8 is 25 hours FDR and 120 mins CVR) but my understanding of the intent is that they exist to provide data for crashes and accidents, and the relevant data surrounding those only last a short time.
Plus, so much flight data is being sent off the planes in real time (ie FOQA) that they probably wouldn’t need it for routine, non-mishap type stuff.