Austral Líneas Aéreas flight 2553
| Austral Líneas Aéreas flight 2553 | |
|---|---|
.jpg) The accident machine LV-WEG |
|
| Accident summary | |
| Accident type | Loss of control after instrument errors |
| place | 21 km east of Nuevo Berlín , Uruguay |
| date | October 10, 1997 |
| Fatalities | 74 |
| Survivors | 0 |
| Aircraft | |
| Aircraft type | McDonnell Douglas DC-9-32 |
| operator | Austral Líneas Aéreas |
| Mark | LV-WEG |
| Departure airport | Posadas Airport |
| Destination airport | Buenos Aires Jorge Newbery Airport |
| Passengers | 69 |
| crew | 5 |
| Lists of aviation accidents | |
On October 10, 1997, a McDonnell Douglas DC-9-32 was on Austral-Líneas-Aéreas flight 2553 between Posadas and Buenos Aires at cruising altitude over Uruguay . But on the way to the goal, she crashed. All 74 occupants died in the worst aircraft accident in Uruguay.
plane
The plane was a 28 year old McDonnell Douglas DC-9-32 with the air vehicle registration LV-WEG, with two Pratt & Whitney JT8D-7B was equipped -Turbines and 56,854 flight hours had passed.
crew
The pilots were the 40-year-old captain Jorge Cecere and the first officer Horacio Nunez.
course
At 9:18 p.m. local time, the aircraft took off from Posadas Airport and climbed to its planned cruising altitude of 35,000 ft (10,670 m ). At this altitude there was a temperature of −59 ° C and winds of 80 km / h. The aircraft went off course and entered the Montevideo flight information area without having made radio contact. At 10:04 p.m. it got into a zone with icing conditions. Three minutes later, the first officer initiated a descent without prior approval . Meanwhile, the master made radio contact with the air traffic controller in Ezeiza ( Argentina ) and asked for permission to descend. He replied that the pilots were in Uruguayan airspace and therefore had to ask the air traffic controller in Montevideo (Uruguay) for permission. During the descent, the first officer complained that his speedometer was not working properly. When the aircraft sank below 30,000 ft (9150 m), the first officer extended the slats to increase lift. However, the speed exceeded the load limit, so that parts broke off and caused an asymmetrical lift. The pilots lost control, the aircraft went into an uncontrollable dive , hit the ground at 10:10 p.m. with an estimated vertical speed of 1200 km / h and a vertical inclination of 70 °, leaving a large crater. All 74 inmates died.
root cause
The cause was an icing over of the pitot tube (speedometer) on the first officer's side, which indicated speeds of 300 km / h instead of the real 800 km / h, which is close to the stall speed and caused him to extend the slats. Because the speed was above the load limit of the slats, parts of it tore off and created an asymmetrical lift, which led to a nosedive and crash.
Similar events
- Northwest Orient Airlines Flight 6231 on a Boeing 727 on December 1, 1974
- Alas Nacionales Flight 301 on a Boeing 757 on February 6, 1996
- Aeroperú flight 603 with a Boeing 757 on October 2, 1996
- Air France Flight 447 on an Airbus A330 on June 1, 2009
- Air Algérie flight 5017 with a McDonnell Douglas MD-83 on July 24, 2014
- Saratov Airlines Flight 703 with an Antonov An-148 on February 11, 2018
swell
- Accident report DC-9-30 LV-WEG , Aviation Safety Network (English), accessed on May 7, 2020.
- Newspaper article with the list of inmates (Spanish)
- Newspaper article in Portuguese
- [1]
- Newspaper article with a picture of the crash site
Coordinates: 33 ° 1 ′ 18.6 ″ S , 57 ° 49 ′ 20.8 ″ W.