In a rare and telling act of financial triage, AirAsia has sold six brand-new Airbus jets without ever flying them — surrendering the very tools of its modernization strategy to stay solvent. The Malaysian low-cost carrier, battered by a 58% surge in fuel costs following the outbreak of Middle East conflict in February, now holds one of the lowest cash reserves among airlines worldwide. It is a moment that asks an old question of aviation's most ambitious budget carriers: how thin can a margin be stretched before the wings themselves must be sold?