pan-pan

[pahn-pahn]

noun

an international distress signal used by shore stations to inform a ship, aircraft, etc., of something vital to its safety or to the safety of one of its passengers.

Sometimes pan [pahn] /pɑn/.

Origin of pan-pan

reduplication and alteration of French panne ‘breakdown, failure’
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019