Created Tuesday, Oct 20th 2026 19:42Z, last updated Tuesday, Oct 20th 2026 19:42Z
A PSA Airlines Canadair CRJ-900, registration N574NN performing flight
AA-5089 from St. Louis,MO to Philadelphia,PA (USA), was climbing out of St. Louis when the crew stopped the climb at about FL210 and initiated an emergency descent to 10,000 feet due to the loss of cabin pressure. The aircraft returned to St. Louis for a safe landing on runway 30R about 30 minutes after departure and taxied clear of the runway.
Passengers reported the aircraft needed maintenance prior to departure to fix an engine (CF34), then the aircraft departed and about 15 minutes into the flight the passenger oxygen masks were released, a burning smell developed thereafter. After landing they were evacuated and directed away from the terminal building.
The flight was cancelled.
The occurrence aircraft positioned to Knoxville the following day and returned to service two days after arriving in Knoxville.
Related Flight:
AA5089,
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