Engines of 787 in 2019 Rome incident had dozens of
cracked blades: inquiry
By David
Kaminski-Morrow26 January 2022
Italian
investigators probing a Norwegian Boeing 787-8 engine failure have confirmed
that progressive corrosion fatigue resulted in a 6mm crack in an intermediate
pressure turbine blade, which separated on take-off from Rome.
Investigation
authority ANSV has also disclosed that 84 other similar blades in the left-hand
Rolls-Royce Trent 1000 powerplant engine were also cracked, as were 92 blades
in the aircraft’s right-hand engine.
Some 32s after
taking off from Rome Fiumicino’s runway 16R on 10 August 2019, the 787 suffered
the initial failure at just over 1,000ft radio altitude.
Its crew shut down
the left engine and opted to turn back to the airport, landing 25min after
departure.
None of the 286
passengers and 12 crew on board the jet (LN-LND) was injured.
The aircraft was powered by Trent
1000 ‘Package B’ engines. At the time Trent 1000s had been the subject of
various blade-durability issues and redesign efforts by the manufacturer.
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