Jazz DH8D at Toronto on Sep 6th 2023, the "un-tool", unsafe gear

Last Update: September 23, 2023 / 12:33:30 GMT/Zulu time

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Incident Facts

Date of incident
Sep 6, 2023


Toronto, Canada

Aircraft Registration

ICAO Type Designator

A Jazz de Havilland Dash 8-400, registration C-GJZF performing test flight QK-7190 from Toronto,ON to Toronto,ON (Canada) with 4 crew (2 pilots, 2 maintenance engineers), was on approach to Toronto's runway 24L when the crew extended the landing gear, however, did not receive a green indication for the left main gear. The crew went around, worked the related checklists but were unable to resolve the unsafe indication. The crew declared PAN PAN and prepared for a landing with the unsafe indication, shut down the left hand engine and landed safely on runway 15L about 65 minutes after aborting the first approach.

The Canadian TSB reported the aircraft had performed a test flight after a spoiler cable had been replaced. The TSB wrote: "Upon inspection on the runway, maintenance discovered a tool jammed in the left landing gear, preventing it from fully extending. Subsequent investigation determined that the tool found was an extension magnetic tool, not under the operator's control, and lacking any identification markings. The operator conducted research into prior maintenance in the area but found no documented reason for the tool to be located there."

Aircraft Registration Data
Registration mark
Country of Registration
Date of Registration
Certification Basis
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TCDS Ident. No.
Aircraft Model / Type
ICAO Aircraft Type
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
Sep 6, 2023


Toronto, Canada

Aircraft Registration

ICAO Type Designator

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