ASN logo
Accident description
Last updated: 22 October 2017
Status:Final
Date:Tuesday 21 September 2004
Time:14:10
Type:Silhouette image of generic SW4 model; specific model in this crash may look slightly different
Swearingen SA227-AC Metro III
Operator:Norcanair
Registration: C-FIPW
C/n / msn: AC-524
First flight: 1982
Engines: 2 Garrett TPE331-11U-611G
Crew:Fatalities: 0 / Occupants: 2
Passengers:Fatalities: 0 / Occupants: 9
Total:Fatalities: 0 / Occupants: 11
Airplane damage: Damaged beyond repair
Location:La Ronge Airport, SK (YVC) (   Canada)
Phase: Landing (LDG)
Nature:Passenger
Departure airport:Stony Rapids Airport, SK (YSF/CYSF), Canada
Destination airport:La Ronge Airport, SK (YVC/CYVC), Canada
Flightnumber:1051
Narrative:
The aircraft was landed in a crosswind on La Ronge's runway 18 and touched down firmly, approximately 1000 feet from the threshold. On touchdown, the left wing dropped and the propeller made contact with the runway. The aircraft veered to the left side of the runway, despite full rudder and aileron deflection. The crew applied maximum right braking and shut down both engines. The aircraft departed the runway and traveled approximately 200 feet through the infield before the nose and right main gear were torn rearwards; the left gear collapsed into the wheel well. The aircraft slid on its belly before coming to rest approximately 300 feet off the side of the runway. Three of the passengers suffered minor injuries from the sudden stop associated with the final collapsing.

Probable Cause:

FINDINGS AS TO CAUSES AND CONTRIBUTING FACTORS:
"1. An incorrect roller of a smaller diameter and type was installed on the left main landing gear outboard bellcrank assembly, contrary to company and industry practice.
2. The smaller diameter roller reduced the required rigging tolerances for the bellcrank-to-cam assembly in the down-and-locked position and allowed the roller to eventually move beyond the cam cutout position, resulting in the collapse of the left landing gear.
3. A rigging check was not carried out after the replacement of the bellcrank roller. Such a check should have revealed that neither the inboard nor outboard bellcrank assembly met the minimum rigging requirements for proper engagement with the positioning cam."

Accident investigation:
cover
Investigating agency: TSB Canada
Status: Investigation completed
Duration: 176 days (6 months)
Accident number: TSB Report A04C0174
Download report: Final report

Classification:
Wrong installation of parts

Runway excursion

Sources:
» TSB


Photos

photo of Swearingen SA227-AC Metro III N4442F
N4442F was bought by Provincial Airlines as C-FIPW in 1995
Add your photo of this accident or aircraft
 

Map
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 Stony Rapids Airport, SK to La Ronge Airport, SK as the crow flies is 454 km (283 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.
languages: languages

Share