An unexpected aircraft swap led American Airlines (AA) Flight AA780 from Philadelphia (PHL) to Naples (NAP) to divert mid-air after realizing the Boeing 787-9 it was operating wasn’t certified to land at Naples Airport.
On June 2, 2025, the transatlantic flight, normally operated by a Boeing 787-8, had been upgraded to a larger 787-9 (registration N837AN) for operational reasons. However, this seemingly minor change had major consequences mid-descent.
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