Boeing 737-8 MAX (N8846Q): Trade reports: fumes in cockpit and cabin after departure; returned to Louisville and landed safely. No Southwest/FAA statement opened.

Preserved from the existing published card when timestamped history was enabled. Earlier original wording or publication time cannot be reconstructed.

Trade reports: fumes in cockpit and cabin after departure; returned to Louisville and landed safely. No Southwest/FAA statement opened.

• Flight WN712 Louisville → Orlando, Boeing 737-8 MAX N8846Q, 4 Nov 2026, about 172 people on board (per AeroInside citing Aviation Herald).
• AeroInside (citing Aviation Herald): climbing out of Louisville runway 17L in heavy precipitation, the crew stopped the climb at about 6,000 ft reporting fumes in cabin and cockpit, requested return, and landed on runway 17R about 20 minutes after departure.
• AeroInside (citing Aviation Herald): a replacement 737-8 MAX later reached Orlando about 5 hours late; the occurrence aircraft remained on the ground about 21 hours before positioning.
• No Southwest Airlines statement and no FAA commercial-incident line for this event were opened for this card.

Not claimed at that time:

• Source of the fumes — not determined in sources reviewed.
• Injuries, if any (not stated in trade account reviewed).
• Any official investigation docket.

• AeroInside — Southwest B38M Louisville fumes (cites Aviation Herald)
• Flightradar24 — WN712 flight history
• Airportia — WN712 Louisville note