Aero Trasporti Italiani Flight 460
1987 aviation accident From Wikipedia, the free encyclopedia
Aero Trasporti Italiani Flight 460 was a scheduled passenger flight between Milan Linate Airport in Milan, Italy and Cologne Bonn Airport in Cologne, Germany on 15 October 1987. The flight was operated by Aero Trasporti Italiani (ATI), a subsidiary of Alitalia, using an ATR-42 turboprop aircraft.
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 An ATR 42-300, similar to the one involved | |
| Accident | |
|---|---|
| Date | 15 October 1987 |
| Summary | Icing and design flaw |
| Site | Mount Crezzo, Conca di Crezzo, Italy 45.9094°N 9.2834°E |
| Aircraft | |
| Aircraft type | ATR 42-312 |
| Aircraft name | Verona |
| Operator | Aero Trasporti Italiani |
| Registration | I-ATRH |
| Flight origin | Milan Linate Airport, Milan, Italy |
| Destination | Cologne Bonn Airport, Cologne, Germany |
| Passengers | 34 |
| Crew | 3 |
| Fatalities | 37 |
| Survivors | 0 |
Icing conditions existed at the time and fifteen minutes after takeoff, while climbing through FL147 (14,700 feet (4,500 m)) in IAS hold mode (constant speed set at 133 knots (246 km/h; 153 mph)) the aircraft rolled left and right before crashing nose down into a 700-metre-high (2,300 ft) mountain following an uncontrolled descent. All 37 onboard the aircraft were killed.
Flight 460 took off from Milan-Linate airport at 7.13 pm, 53 minutes later than scheduled due to traffic and poor weather conditions. Fifteen minutes after taking off, the aircraft was climbing to an altitude of 14,700 feet (4,500 m), in IAS mode, at a constant speed of 133 knots (246 km/h; 153 mph), when it began a rotation movement to the right and left: 41° to the right, 100° to the left and then 105° to the right before another 135° roll to the left. During the movements, three anomalous pitch trim movements were made setting the elevator pitch to down, preventing a recovery. Moments before the aircraft disappeared from radar, the pilot contacted air traffic control to declare a mayday. The aircraft crashed nose down into Mount Crezzo, near Lake Como, following an uncontrolled descent.[1][2]
The aircraft involved in the accident was an Aerospatiale ATR 42-312, serial number 046, registered as I-ATRH and named "Città di Verona". It was delivered brand new to ATI on 14 May 1987 equipped with two Pratt and Whitney PW120 turbo propeller engines. The aircraft was manufactured in Toulouse, France and held the test registration of F-WWEZ prior to delivery. Its first test flight was made on 24 April 1987.[3][4]
Flight 460 had a crew of three. Lamberto Lainè (43) was the pilot, Pierluigi Lampronti (29) was the co-pilot and Carla Corneliani (35) was the flight attendant.[5]
Originally, 46 seats on the aircraft had been sold however only 30 passengers with reservations arrived on time. With the delay, a further 4 passengers were able to board the aircraft.[6] One notable passenger was German racing driver and two time Nürburgring 24 Hours champion, Axel Felder.[7]
Local eye-witness reports suggested that the aircraft had crashed into a mountain in the Mount Crezzo area of the alps, near Lake Como and the towns of Magreglio and Barni. Local weather conditions at the time were poor, heavy rain in the area of the crash. Early searching for the aircraft was completed by rescue workers beaming a spotlight on the mountainside from the lakefront at Onno.[8][9]
By the day following the crash, investigators located the aircraft and all 37 passengers and crew. They confirmed there were no survivors. At the same time one of the two black boxes was recovered.[10] The following day, the second black box was recovered from the crash site.[11]
Investigations by the Carabinieri Investigative Unit of the Provincial Command of Como and the Air Force showed that the weather conditions had caused the formation of ice on the wings of the ATR 42. The crew had failed to understand that the ice and the low speed would have stalled the plane. Instead, some of their maneuvers to regain speed, likely combined with poor management of the trim, led the plane to point towards the ground until it crashed into the mountain.[12]
An investigation of the judiciary led to a trial that saw the designer of the ATR 42 aircraft, Jean Rech, and three senior executives of ATI convicted for manslaughter.[13] However, in 1995 these sentences were annulled and all four men were acquitted.[14][15][16]
It was briefly mentioned on Air Crash Investigation Season 7 episode "Frozen in Flight", which depicted American Eagle Flight 4184, during the part depicting similar incidents with the ATR-72 involving icing conditions.
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