Canada BCS3 and Rouge A319 at Montreal on Nov 23rd 2023, loss of separation on final approaches in icing conditions
Last Update: December 12, 2023 / 12:02:47 GMT/Zulu time
Incident Facts
Date of incident
Nov 23, 2023
Classification
Incident
Airline
Air Canada
Flight number
AC-1074
Departure
Denver, United States
Destination
Montreal, Canada
Aircraft Registration
C-GWUT
Aircraft Type
Airbus A220-300
ICAO Type Designator
BCS3
Airport ICAO Code
CYUL
An Air Canada Rouge Airbus A319-100, registration C-GBHY performing flight RV-1597 from Halifax,NS to Montreal,QC (Canada), was on final approach to runway 24R behind C-GWUT.
The Canadian TSB reported that there was moderate icing between 2200 and 8000 feet, the A319 encountered a significant increase in ice accumulation while descending through 3000 feet. AC-1074 slowed down prompting the controller to request RV-1597 to slow down too, however, the required separation of 3nm between the two aircraft was lost and reduced to about 2.1nm. The controller instructed RV-1597 to go around, the crew however requested to continue the approach for safety reasons due to the icing conditions. The controller permitted RV-1597 to continue the approach and requested the crew to advise when they had AC-1074 in sight, both aircraft were in IMC at the time, but RV-1597 had AC-1074 on their TCAS display. Finally the crew reported to have AC-1074 in sight and was cleared for a visual approach. Both aircraft landed safely.
Metars:
CYUL 240100Z 28012G18KT 15SM FEW015 OVC060 05/02 A2981 RMK SF2SC6 SLP097=
CYUL 240000Z 25009G15KT 15SM FEW013 BKN018 OVC060 05/03 A2981 RMK SF2ST5SC1 SLP096=
CYUL 232335Z 25010KT 15SM FEW012 OVC018 05/03 A2980 RMK SF2ST6 SLP095=
CYUL 232300Z 25011KT 10SM -DZ SCT011 OVC016 05/03 A2980 RMK SF3ST5 SLP094=
CYUL 232200Z 22007KT 8SM -DZ OVC015 04/02 A2978 RMK ST8 SLP088=
CYUL 232149Z 23008KT 10SM -DZ OVC015 04/01 A2978 RMK ST8 SLP087=
CYUL 232100Z 22006KT 15SM BKN030 OVC050 04/00 A2977 RMK SC7SC1 SLP083=
CYUL 232000Z 23008KT 15SM BKN055 BKN090 BKN120 04/00 A2977 RMK SC6AC1AC1 AC TR SLP084=
CYUL 231900Z 23008KT 15SM FEW025 BKN045 OVC120 04/M00 A2978 RMK CF1SC6CI1 SLP086=
CYUL 231800Z 24012KT 15SM FEW020 BKN040 04/M01 A2978 RMK CF1SC6 SLP088=
Aircraft Registration Data
Aircraft registration data reproduced and distributed with the permission of the Government of Canada.
Incident Facts
Date of incident
Nov 23, 2023
Classification
Incident
Airline
Air Canada
Flight number
AC-1074
Departure
Denver, United States
Destination
Montreal, Canada
Aircraft Registration
C-GWUT
Aircraft Type
Airbus A220-300
ICAO Type Designator
BCS3
Airport ICAO Code
CYUL
This article is published under license from Avherald.com. © of text by Avherald.com.
Article source
You can read 2 more free articles without a subscription.
Subscribe now and continue reading without any limits!
Read unlimited articles and receive our daily update briefing. Gain better insights into what is happening in commercial aviation safety.
Send tip
Support AeroInside by sending a small tip amount.
Related articles
Canada BCS3 near West Palm Beach on Dec 9th 2023, engine shut down in flight
An Air Canada Bombardier C-Series CS-300, registration C-GWUT performing flight AC-1204 from Toronto,ON (Canada) to Miami,FL (USA), was descending…
Canada BCS3 and United B38M at San Francisco on Jun 24th 2025, ATC operational error
An Air Canada Bombardier C-Series CS-300, registration C-GWUQ performing flight AC-760 from San Francisco,CA (USA) to Montreal,QC (Canada), was…
Canada BCS3 enroute on Jun 12th 2025, captain incapacitated
An Air Canada Bombardier C-Series CS-300, registration C-GNAM performing flight AC-1051 from Montreal,QC (Canada) to Austin,TX (USA) with 82 people…
Fleet type match
Canada B789 near Frankfurt on Mar 25th 2025, hydraulic leak
An Air Canada Boeing 787-9, registration C-FRSE performing flight AC-57 from Dubai (United Arab Emirates) to Toronto,ON (Canada) with 304 people on…
Fleet type match
Canada B763 at San Juan on Nov 9th 2024, odour and smoke in cockpit
An Air Canada Boeing 767-300, registration C-FXCA performing flight AC-7220 from Atlanta,GA (USA) to San Juan (Puerto Rico) with 2 crew, was on final…
Fleet type match
Canada BCS3 at Fort McMurray on Oct 29th 2024, gear failure
An Air Canada Bombardier C-Series CS-300, registration C-GTZH performing flight AC-1162 from Fort McMurray,AB to Toronto,ON (Canada) with 109 people…
Newest articles
Fleet type match
Easyjet A320 at London on Jul 15th 2025, bird strike
An Easyjet Airbus A320-200, registration G-EZOP performing flight U2-8520 from Funchal (Portugal) to London Gatwick,EN (UK), was on approach to…
British Airways B772 at London on Jul 15th 2025, fumes on board
A British Airways Boeing 777-200, registration G-YMME performing flight BA-2203 from London Gatwick,EN (UK) to Cancun (Mexico) with 340 people on…
Subscribe today
Are you researching aviation incidents? Get access to AeroInside Insights, unlimited read access and receive the daily newsletter.
Pick your plan and subscribePartner
ELITE Simulation Solutions is a leading global provider of Flight Simulation Training Devices, IFR training software as well as flight controls and related services. Find out more.
SafetyScan Pro provides streamlined access to thousands of aviation accident reports. Tailored for your safety management efforts. Book your demo today
AeroInside Blog
Popular aircraft
Airbus A320Boeing 737-800
Boeing 737-800 MAX
Popular airlines
American AirlinesUnited
Delta
Air Canada
Lufthansa
British Airways