Westjet B737 at Halifax on Jan 4th 2023, trailing edge flaps locked

Last Update: January 30, 2023 / 20:42:59 GMT/Zulu time

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Incident Facts

Date of incident
Jan 4, 2023

Classification
Incident

Flight number
WS-8975

Destination
Toronto, Canada

Aircraft Registration
C-FWSV

Aircraft Type
Boeing 737-700

ICAO Type Designator
B737

A Westjet Boeing 737-700, registration C-FWSV performing flight WS-8975 from Halifax,NS to Toronto,ON (Canada), declared PAN PAN at some stage into the flight due to flaps indication that required a flaps up landing. The crew used the alternate flaps system to extend the leading edge devices and landed safely on Toronto's runway 05 at a higher than normal speed.

The Canadian TSB reported that the aircraft had already returned to Halifax earlier that morning due to a similiar flaps indication. Maintenance determined a connector was dirty, the connector was cleaned and checked and the aircraft was returned to service. During the occurrence flight the crew received a flaps asymmetry indication at 10,000 feet climbing out of Halifax. The crew verified that the flaps had fully retracted and the aircraft was in a clean configuration, then decided to continue to destination. At the destination they used the alternate flaps system to extend the leading edge devices and performed a 0-degrees flap landing with no airspeed or structural limits being exceeded. Maintenance replaced the #5 skew sensor and connector and by that occasion discovered that the connector had short circuited. The flaps were subsequently tested serviceable.
Aircraft Registration Data
Registration mark
C-FWSV
Country of Registration
Canada
Date of Registration
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Certification Basis
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TCDS Ident. No.
Manufacturer
Boeing
Aircraft Model / Type
737-7CT
ICAO Aircraft Type
B737
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
Jan 4, 2023

Classification
Incident

Flight number
WS-8975

Destination
Toronto, Canada

Aircraft Registration
C-FWSV

Aircraft Type
Boeing 737-700

ICAO Type Designator
B737

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