Delta replacing APUs on 300+ jets after toxic‑air incidents
Delta Air Lines is removing and replacing auxiliary power units (APUs) on more than 300 Airbus A320‑family aircraft after a surge of toxic cabin‑air/fume events that have sickened crew and passengers and forced diverted or aborted flights. The work — which Delta says is about 90% complete — follows internal and industry concern over APU seal problems involving suppliers such as Honeywell and engine makers including Pratt & Whitney; a Sept. 3 lawsuit by three former JetBlue flight attendants accuses carriers and suppliers of causing lasting health harms.
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Toxic air sickens crew and passengers across airlines as Delta upgrades engines on more than 300 planes
New information:
- Delta is swapping APUs on 'more than 300' Airbus A320‑family planes; the airline says the program is roughly 90% complete.
- Manufacturers and suppliers named in coverage include Airbus, Honeywell and Pratt & Whitney; internal records reportedly show seal problems in APUs have been known for decades.
- Legal development: a lawsuit filed Sept. 3, 2025 by three former JetBlue flight attendants alleges noxious‑fume exposure from 2022–2024 caused lasting injuries (tremors, memory issues); the complaint names JetBlue, Airbus and Honeywell.