31 Years ago today: On 15 October 1987 an ATI ATR-42 lost control in icing conditions and crashed, killing all 37 occupants (1st fatal ATR-42 accident)

Date:Thursday 15 October 1987
Time:19:28
Type: ATR 42-312
Operator:Aero Trasporti Italiani – ATI
Registration:I-ATRH
C/n / msn:046
First flight:1987
Engines:Pratt & Whitney Canada PW120
Crew:Fatalities: 3 / Occupants: 3
Passengers:Fatalities: 34 / Occupants: 34
Total:Fatalities: 37 / Occupants: 37
Aircraft damage:Destroyed
Aircraft fate:Written off (damaged beyond repair)
Location:Conca di Crezzo (   Italy)
Phase:En route (ENR)
Nature:International Scheduled Passenger
Departure airport:Milano-Linate Airport (LIN/LIML), Italy
Destination airport:Köln/Bonn Airport (CGN/EDDK), Germany
Flightnumber:460

Narrative:
The aircraft took off from Milan-Linate (LIN) for a flight to Köln (CGN). Icing conditions existed. Fifteen minutes after takeoff, while climbing through FL147 in IAS hold mode (constant speed set at 133 kts) the aircraft rolled left and right. The plane rolled 41 degrees right, 100 degrees left, 105 degrees right and 135 degrees left. During pull up three anomalous pitch trim movements set the elevator to pitch down, preventing recovery. The ATR crashed nose down into a 700 m high mountain following an uncontrolled descent.