Transat A21N at Montreal on Oct 14th 2025, dual ADR failure

Last Update: November 12, 2025 / 18:17:27 GMT/Zulu time

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Incident Facts

Date of incident
Oct 14, 2025

Classification
Incident

Airline
Air Transat

Flight number
TS-538

Departure
Montreal, Canada

Destination
Cancun, Mexico

Aircraft Registration
C-GOIM

Aircraft Type
Airbus A321-Neo

ICAO Type Designator
A21N

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.
Aircraft Registration Data
Registration mark
C-GOIM
Country of Registration
Canada
Date of Registration
PqmeAAlgiebjbmpcA Subscribe to unlock
Certification Basis
Pqmkqdpjk fepilpjbAnhbdedmjfdmicblcmhghihimcbq Subscribe to unlock
TCDS Ident. No.
Dgh Subscribe to unlock
Manufacturer
Airbus
Aircraft Model / Type
A321-271NX
ICAO Aircraft Type
A21N
Year of Manufacture
Jqfe Subscribe to unlock
Serial Number
Lqbd Subscribe to unlock
Aircraft Address / Mode S Code (HEX)
Cmhhgm Subscribe to unlock
Maximum Take off Mass (MTOM) [kg]
Fglji Subscribe to unlock
Engine Count
A Subscribe to unlock
Engine Type
BnipAqbAd Subscribe to unlock
Main Owner
Qdqkqhpjcqefqdnjgcmeh jcgfiklpipliAhbqhcp ihqqeifdnjgpfncebeekhmglignfmibbqbcd egq mcAbdf Subscribe to unlock

Aircraft registration data reproduced and distributed with the permission of the Government of Canada.

Incident Facts

Date of incident
Oct 14, 2025

Classification
Incident

Airline
Air Transat

Flight number
TS-538

Departure
Montreal, Canada

Destination
Cancun, Mexico

Aircraft Registration
C-GOIM

Aircraft Type
Airbus A321-Neo

ICAO Type Designator
A21N

This article is published under license from Avherald.com. © of text by Avherald.com.
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