Perimeter SW4 at Cross Lake on Jan 31st 2014, runway excursion on landing

A Perimeter Aviation Swearingen SA-227-AC Metro III, registration C-FJTS performing flight 4B-115 from Winnipeg,MB to Cross Lake,MB (Canada) with 12 people on board, landed on Cross Lake's runway 23. During the roll out the aircraft veered to the left and came to a stop about 15 feet off the left edge of the runway. The right hand propeller as well as the left hand landing gear struck runway lights.

The Canadian TSB reported that the aircraft reportedly began to veer left after applying reverse and brakes.

No weather data are available for Cross Lake, the next weather station at Norway House Airport,MB, 40nm south of Cross Lake, reported:

CYNE 010000Z AUTO 24003KT 9SM -SN SCT029 M21/M23 A2973 RMK SLP094

CYNE 312331Z AUTO 22004KT 9SM BKN027 M20/M22 A2972 RMK SLP091

CYNE 312300Z AUTO 22004KT 8SM -SN OVC029 M19/M22 A2971 RMK SLP087

CYNE 312207Z AUTO 22005KT 5SM -SN OVC025 M19/M22 A2969 RMK SLP081

CYNE 312222Z AUTO 22005KT 6SM -SN OVC027 M19/M22 A2970 RMK SLP083

CYNE 312200Z AUTO 22006KT 6SM -SN OVC025 M19/M22 A2969 RMK SLP080

CYNE 312131Z AUTO 22005KT 9SM -SN OVC023 M19/M22 A2968 RMK SLP076

CYNE 312110Z AUTO 22007KT 9SM BKN023 M19/M22 A2967 RMK SLP073

CYNE 312145Z AUTO 23005KT 7SM -SN OVC025 M19/M22 A2968 RMK SLP078

CYNE 312100Z AUTO 22007KT 9SM CLR M19/M22 A2967 RMK SLP073