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

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Incident Facts

Date of incident
Nov 23, 2023

Classification
Incident

Airline
Air Canada

Flight number
AC-1074

Destination
Montreal, Canada

Aircraft Registration
C-GWUT

Aircraft Type
Airbus A220-300

ICAO Type Designator
BCS3

Airport ICAO Code
CYUL

An Air Canada Bombardier C-Series CS-300, registration C-GWUT performing flight AC-1074 from Denver,CO (USA) to Montreal,QC (Canada), was on final approach to Montreal's runway 24R.

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
Registration mark
C-GWUT
Country of Registration
Canada
Date of Registration
AhAhmfgmdhl mgcj Subscribe to unlock
Certification Basis
IcAkgdkl nbgedmehqejcAifgp pfnef Aegmefc qkkkp Subscribe to unlock
TCDS Ident. No.
Manufacturer
Airbus
Aircraft Model / Type
BD-500-1A11
ICAO Aircraft Type
BCS3
Year of Manufacture
Serial Number
Aircraft Address / Mode S Code (HEX)
Maximum Take off Mass (MTOM) [kg]
Engine Count
Engine Type
Main Owner
AjAhbcnmqjmcAmejAeipb ieApgclcedklbhndpeedmdjikigfAmnkmnfbfeqilihAckdcjmfkibclfliecgqelAjheqbnfjjbAnc Subscribe to unlock

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

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.
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