ASN Aircraft accident Swearingen SA226-TC Metro II C-FSLZ Winnipeg-James Armstrong Richardson International Airport, MB (YWG)
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Status:Accident investigation report completed and information captured
Date:Tuesday 3 March 2009
Type:Silhouette image of generic SW4 model; specific model in this crash may look slightly different
Swearingen SA226-TC Metro II
Operator:Perimeter Airlines (Inland)
Registration: C-FSLZ
First flight: 1976
Engines: 2 Garrett TPE331-10UA-511G
Crew:Fatalities: 0 / Occupants: 2
Passengers:Fatalities: 0 / Occupants: 8
Total:Fatalities: 0 / Occupants: 10
Aircraft damage: Minor
Aircraft fate: Repaired
Location:Winnipeg-James Armstrong Richardson International Airport, MB (YWG) (   Canada)
Phase: Landing (LDG)
Nature:Domestic Scheduled Passenger
Departure airport:Ste Thérèse Point Airport, MB (YST/CYST), Canada
Destination airport:Winnipeg-James Armstrong Richardson International Airport, MB (YWG/CYWG), Canada
Flightnumber: 640
Perimeter Flight PAG 640, a Metro II with 2 crew and 8 passengers, was on approach to runway 18 at Winnipeg after a flight from St. Theresa Point when the crew carried out a missed approach due to landing gear problems. The right main gear would not extend in the down and locked position. The crew attempted a landing with the right main gear up and possibly hoped to free the gear to extend, however, this was unsuccessful and they subsequently elected to land gear up on their second approach. The aircraft landed successfully on its belly and came to a stop on the runway. The aircraft landed between Taxiways P and Q and all 10 occupants were evacuated and were transported to the hospital as a precaution. There were no obvious injuries and there was no fire after landing. The aircraft sustained substantial damage to its propellers, flaps and aft belly area. Inspection by TSB indicated that the inboard right main landing gear door partially hung up on the wheel well structure, preventing the extension of the landing gear. The reason for the gear door interference is under investigation.
This aircraft was involved in an unsafe gear incident the previous day at Winnipeg.

Probable Cause:

1. The right inboard landing gear door was incorrectly rigged, which reduced the clearance between the tire and gear door during gear extension. The mis-rigged landing gear door likely went unnoticed through four separate inspections.
2. The combined effect of the mis-rigged gear door, the installation of a new re-capped tire with large dimensions, growing free play in the gear door bushings/linkage arrangement, and air loading on the gear door reduced clearances sufficiently that the number three tire caught on a ledge on the inboard door skin, preventing the right main gear from extending.

Accident investigation:

Investigating agency: TSB Canada
Status: Investigation completed
Duration: 205 days (7 months)
Accident number: A09C0028
Download report: Final report

Gear-up landing
Runway mishap

» CADORS Number: 2009C0523
» CADORS Number: 2009C0528


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This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Ste Thérèse Point Airport, MB to Winnipeg-James Armstrong Richardson International Airport, MB as the crow flies is 464 km (290 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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