Georgian CRJ1 near Toronto on Jan 11th 2019, unreliable airspeeds and altitudes

Last Update: February 13, 2019 / 20:47:21 GMT/Zulu time

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Incident Facts

Date of incident
Jan 11, 2019

Classification
Incident

Airline
Air Georgian

Flight number
ZX-7272

Departure
Memphis, United States

Destination
Toronto, Canada

Aircraft Registration
C-GKFR

Aircraft Type
Canadair CL-600 Regional Jet RJ-100

ICAO Type Designator
CRJ1

An Air Georgian Canadair CRJ-100, registration C-GKFR performing flight ZX-7272 from Memphis,TN (USA) to Toronto,ON (Canada), was descending towards Toronto when both the captain's and first officer's airspeed and altitude indications became unreliable. The crew requested to level off to remain above clouds advising they had lost both their airspeed indicators, requested pilot reports about cloud base, subsequently descended through the clouds. The crew commented to ATC that they had also lost the autopilot and had another couple of things going on. The crew worked the related checklist procedures and managed to recover the first officers flight director (FD) and flight mode announciators (FMA). The crew declared PAN PAN and continued the approach using the first officer's instruments, the speed over ground was about 310 knots. ATC pulled several aircraft off the approach and stopped departures. The aircraft landed safely on runway 05 at a normal speed about 8 minutes after declaring PAN.

The Canadian TSB reported following fault verification maintenance replaced the #1 Air Data Computer and purged the pitot line.
Incident Facts

Date of incident
Jan 11, 2019

Classification
Incident

Airline
Air Georgian

Flight number
ZX-7272

Departure
Memphis, United States

Destination
Toronto, Canada

Aircraft Registration
C-GKFR

Aircraft Type
Canadair CL-600 Regional Jet RJ-100

ICAO Type Designator
CRJ1

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