International flights are now being allowed to depart US airports on a case-by-case basis, according to Flightradar24. In a live blog entry stamped 22:00 UTC on 13 November, which is 10pm UK time, the flight tracking service says Etihad's Boston to Abu Dhabi flight is en route.
The FAA has not confirmed this. If accurate, it is the first sign of any easing of the departure halt.
It would also mark a change from the FAA's own advisory, posted at about 8.54pm UK time. That advisory said all departing traffic was to remain ground stopped until further notice, while only inbound international flights would be managed on a case by case basis. Flightradar24's report concerns outbound flights, which the advisory did not exempt.
Flightradar24 names one flight as airborne. It gives no figure for how many other international departures have been released, and there is no official statement from the FAA on outbound traffic beyond the original advisory.