TS538 - Incident: Transat A21N at Montreal on Oct 14th 2025

An Air Transat Airbus A321-200N, registration C-GOIM performing flight TS-538 from Montreal,QC (Canada) to Cancun (Mexico) with 182 passengers and 6 crew, was climbing through 1000 feet out of Montreal's runway 06R when the crew received NAV ADR (Air Data Reference) 1+2 fault messages, declared PAN PAN and decided to return to Montreal for a safe landing on runway 06L about 40 minutes after departure.

A replacement A321-200N registration C-GOIE reached Cancun with a delay of about 3 hours.

The occurrence aircraft returned to service about 56 hours after landing.