Lufthansa flight 527

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Lufthansa flight 527
Boeing 707-330C D-ABUY (Lufthansa Cargo) at FRA.jpg

The crashed Boeing 707 of Lufthansa in September 1978.

Accident summary
Accident type Controlled flight into terrain
place 25 km north of Rio de Janeiro Airport
date July 26, 1979
Fatalities 3
Survivors 0
Aircraft
Aircraft type Boeing 707-330C
operator Lufthansa
Mark D-ABUY
Departure airport Rio de Janeiro-Galeão Airport , BrazilBrazilBrazil 
Destination airport Dakar-Yoff Airport , SenegalSenegalSenegal 
Passengers 0 (cargo flight)
crew 3
Lists of aviation accidents

Lufthansa flight 527 was a Lufthansa cargo flight that was to run on July 26, 1979 from Rio de Janeiro in Brazil to Dakar in Senegal . Shortly after taking off from Rio, the Boeing 707 climbed against a slope and crashed into pieces. All three crew members were killed in the accident.

the accident

The cargo plane took off from Rio de Janeiro-Galeão Airport at 21:27  UTC and received instructions from the controller in charge to approach the rotating beacon (VOR) Caxias and climb to an altitude of 2,000  feet .

On the instructions of the controller, the crew, consisting of the master , a first officer and a flight engineer , accelerated the aircraft to over 300  knots ; normally a maximum of 250 knots were allowed below an altitude of 10,000 feet.

At the same time, the controller was busy checking further air traffic in the greater Rio area, so that he initially lost sight of LH527.

When the controller turned back to LH527, the aircraft was already further north than expected by the controller due to the high speed. He then gave the crew the heading 140 degrees and the instruction to increase the rate of climb . Shortly after the radio message, the warning from the Ground Proximity Warning System sounded in the cockpit . At 21:32 UTC the Boeing 707 collided with trees in a slight left turn and crashed into a slope, with the debris spreading over 800 meters.

causes

The main cause was found to be the failure of the Brazilian air traffic controllers to pay the necessary attention to each aircraft and thus both to stagger the aircraft among each other and to ensure the necessary distances to rising terrain.

The high speed of the Boeing 707 - instructed by the controller - and the fact that the crew accepted an incorrect clearance from the controller also contributed to the accident. Normally this contains a departure route with a so-called clearance limit , up to which the machine is allowed to fly. When asked by the pilots, air traffic control gave only an unclear answer. This information was missing in the approval for LH527, so the crew continued to fly on the set course instead of asking air traffic control for new instructions. In the last almost two minutes there was no longer any communication between LH527 and air traffic control.

Individual evidence

  1. Accident report Aviation Safety Network (English)
  2. a b ICAO: Circular 173-AN / 109. (PDF, 16 MB) Retrieved June 20, 2014 (English, page 31).

Coordinates: 22 ° 34 ′ 58 ″  S , 43 ° 12 ′ 57 ″  W.