First AT42 at Pagnirtung on Dec 9th 2020, unexpected ground proximity alert due to wrong weather data

Last Update: December 11, 2020 / 21:19:00 GMT/Zulu time

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Incident Facts

Date of incident
Dec 9, 2020

Classification
Incident

Airline
First Air

Flight number
7F-5604

Aircraft Registration
C-GSRR

Aircraft Type
ATR ATR-42

ICAO Type Designator
AT42

A First Air Avions de Transport Regional ATR-42-300, registration C-GSRR performing flight 7F-5604 from Iqaluit,NU to Pagnirtung,NU (Canada), was enroute at FL190 when the crew inquired with Flight Information Service about the current weather at the destination, however, received the weather of Puvirnituq,QC (Canada) in error. The crew continued to Pagnirtung, however, during the descent received a ground proximity warning. The crew established contact with UNICOM at Pagnirtung about 20nm out, received the correct weather data and continued for a safe landing at Pagnirtung.

Canada's TSB reported Flight Information Service accidentally reported the weather data of CYPX (Puvirnituq) instead of CYXP (Pagnirtung), which provided a different altimeter setting. In the descent the crew received a terrain proximity warning. As there were VFR conditions there was no real risk of a collision with terrain. The crew received the correct altimeter settings from UNICOM Pagnirtung about 20nm out and continued for a safe landing.
Aircraft Registration Data
Registration mark
C-GSRR
Country of Registration
Canada
Date of Registration
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Certification Basis
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TCDS Ident. No.
Manufacturer
Aerospatiale
Aircraft Model / Type
ATR 42-300
ICAO Aircraft Type
AT42
Year of Manufacture
Serial Number
Aircraft Address / Mode S Code (HEX)
Maximum Take off Mass (MTOM) [kg]
Engine Count
Engine Type
Main Owner
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Aircraft registration data reproduced and distributed with the permission of the Government of Canada.

Incident Facts

Date of incident
Dec 9, 2020

Classification
Incident

Airline
First Air

Flight number
7F-5604

Aircraft Registration
C-GSRR

Aircraft Type
ATR ATR-42

ICAO Type Designator
AT42

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