Weekly Recap: Philadelphia fiber outage halts arrivals and $350 Citi card

A severed fiber outage that halted arrivals at Philadelphia, a key hub, disrupted American Airlines Group Inc. (NASDAQ:AAL) operations and forced FAA repairs and rescheduling, even as AAL leans on last year’s $350—fee Citi co—branded card to bolster revenue and customer loyalty.Previous Week RecapT…