Airbus A340 Intermediate Loss of Control During Turbulence

An A340-300 from Caracas (Venezuela) to Paris Charles de Gaulle (France), was enroute at FL350 about 145nm northeast of Point A Pitre (Guadeloupe) in night and instrument meteorological conditions when the Flight crew received an overspeed alert, the autopilot disconnected, the crew observed the indicated airspeeds had increased to 0.88 mach (MMO 0.86 mach) and 304 knots. The aircraft gradually increased its pitch attitude to 11 degrees and climbed with up to 5 000 feet/minute up to FL380, reaching FL380 at 0.66 mach/ 205 KIAS - stall speed was computed at 202 KIAS - before the pitch attitude decreased again and the aircraft returned to normal flight parameters. The flight was continued to Paris and landed safely in Paris about 7.5 hours after the upset.

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