Remember a few years ago when American’s fleet was grounded by the FAA for a wiring infraction? Well it’s happening again. This week United has grounded it’s entire fleet of 757s. Voluntarily it seems. 96 planes in all are out of commission for “unscheduled maintenance”. The official story is that it is to update an onboard air data computer system to comply with a 2004 FAA airworthiness direction. 2004?! And they are just getting to this now? Glad I’m not flying any time soon!