In an article in the USA Today this morning, it appears most upgrades will be done within days, or have been done already.
"American Airlines said it had 209 affected A320-family aircraft — fewer than initially thought — and that nearly all required Airbus software updates would be completed Friday, Nov. 28, with the remaining few finished by Nov. 29, well before the safety directive takes effect.
Delta Air Lines expects the directive will apply to a small portion of its Airbus A320 family fleet. "As safety comes before everything else, Delta will fully comply with a directive and expects any resulting operational impact to be limited," the airline told USA TODAY
United Airlines told USA TODAY that only "six aircraft in our fleet are affected, and we expect minor disruption to a few flights."
A Frontier spokesperson told USA TODAY the airline is evaluating the order and will continue to provide updates.
Spirit Airlines and Frontier Airlines both operate Airbus A320-family aircraft exclusively.
JetBlue, also a major operator of the type, told USA TODAY it is "working closely with the FAA, Airbus, and our business partners to quickly address an issue identified with flight control software on certain A320 and A321 aircraft operated by carriers worldwide. We’ve already started work on the affected aircraft." The airline added that it would notify customers of any flight changes.
If the airlines can't quickly implement the fix, there could potentially be thousands of flights canceled in the coming days. But that extreme scenario already seems somewhat unlikely."
~Diane