I had an icing incident on that same route (LAN-ORD) in descent.
An Eagle flight reported moderate icing on the approach. Recalling how Eagle reports "moderate" icing when the see 3 snowflakes post-Roselawn, we took a wait and see approach.
Sure enough, descending through 7000 on the intercept to 14L (actually had been cleared 14R then swapped as the loc came alive) we started to pick it up fast. We already had everything on. We were in a Brasilia ER with 26 pax and near max ldg weight.
Ice quickly covered the side windows so that we couldn't see the wings. At the marker, I called for "gear down, condition levers max" and when it was accomplished, the airplane began to shake violently. We added another 10 kt to our already inflated Vref. It took 55% torque at 100%Np to hold 145kt.
We broke out at 200-1 to find the windshields completely iced over despite windshield heat and wipers. Only a 3" by 3" hole in the center of each.
We landed and taxied in (slowly). Pulling into the ramp, we could tell by the looks on the rampers' races (and it's hard to impress a gangbanger) that we were bad.
In the postflight, we found the entire airframe forward of the wings a "popsicle" with 1/2 inch of coarse clear ice. All windows, including passenger windows forward of the wings were covered. The props were coated, and the ice melted off the heated boot but refroze on the metal part making a 1" "rams horn" on each blade (hence the shaking). On the wing, the ice ran back 1 foot behind the protected area above the wing and 2 ft behind the protected area below the wing.
You never saw two pilots kiss the ground faster. right behind us, a company B1900 taxied in in the same shape. Right after that, they closed the airport for a couple hours.
This story is a tribute to the E120. If you fly it right... keep the speed up... it can handle it's share of ice. However, I fear to think what would have happened if we had to go missed.
An Eagle flight reported moderate icing on the approach. Recalling how Eagle reports "moderate" icing when the see 3 snowflakes post-Roselawn, we took a wait and see approach.
Sure enough, descending through 7000 on the intercept to 14L (actually had been cleared 14R then swapped as the loc came alive) we started to pick it up fast. We already had everything on. We were in a Brasilia ER with 26 pax and near max ldg weight.
Ice quickly covered the side windows so that we couldn't see the wings. At the marker, I called for "gear down, condition levers max" and when it was accomplished, the airplane began to shake violently. We added another 10 kt to our already inflated Vref. It took 55% torque at 100%Np to hold 145kt.
We broke out at 200-1 to find the windshields completely iced over despite windshield heat and wipers. Only a 3" by 3" hole in the center of each.
We landed and taxied in (slowly). Pulling into the ramp, we could tell by the looks on the rampers' races (and it's hard to impress a gangbanger) that we were bad.
In the postflight, we found the entire airframe forward of the wings a "popsicle" with 1/2 inch of coarse clear ice. All windows, including passenger windows forward of the wings were covered. The props were coated, and the ice melted off the heated boot but refroze on the metal part making a 1" "rams horn" on each blade (hence the shaking). On the wing, the ice ran back 1 foot behind the protected area above the wing and 2 ft behind the protected area below the wing.
You never saw two pilots kiss the ground faster. right behind us, a company B1900 taxied in in the same shape. Right after that, they closed the airport for a couple hours.
This story is a tribute to the E120. If you fly it right... keep the speed up... it can handle it's share of ice. However, I fear to think what would have happened if we had to go missed.