Qantas 32 : explosion d'un moteur (Trent 900) sur A380

2 Feb 2024 · 36 min
35:31

French-language monologue explaining the Qantas Flight QF32 engine explosion (4 Nov 2010). Covers the flight timeline (Heathrow→Singapore→Sydney), 469 people on board, eyewitness video of engine #2 exploding, debris falling on Malaysia, and rapid public reaction. Explains multi-spool turbofan operation (N1/N2/N3), oil feed tube function and its manufacturing mis-bore causing wall thickness as low as 0.35 mm; tube fracture led to oil loss, turbine overspeed and disk disintegration, severing of wiring and loss of multiple systems. Pilots faced overwhelming alerts, lost ~65% lateral control, had fuel imbalance, and could not use normal fuel-transfer or some controls; they returned and landed at Singapore (4,000 m runway). Repairs took ~18 months, involved replacing engines, wing sections and 6 km of wiring, increasing empty weight by ~94 kg. Post-incident inspections found about a dozen faulty tubes across the fleet, four even thinner than 0.35 mm; FADEC behaviour was insufficient and software/process changes and manufacturing fixes were later made.

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