The problems with some Rolls Royce Trent 1000 engines powering Boeing 787 jets will further disrupt flights operations, as engine manufacture said it require more time and money to fix the issues.
It was reported that 380 Package C Trent 1000 engines’ turbine blades are wearing out sooner than expected, which prompted unscheduled inspections.
The issue was first identified in ANA jets in 2016. ANA replaced all 100 Trent 1000 engines powering its 787 fleet because of identified uncontained engine failure. During that time it was reported, the early erosion/corrosion caused the blades to crack, and the broken blade or its fragments travel at high speed and ejects through the engine casing, creating the “uncontained failure”.
The corrosion is thought to be due to the flaking of protective coating on the blades of the single stage intermediate pressure turbine. The Trent 1000 is a three-shaft engine with a 2.8m swept-back fan.
Vibration induced failures usually show up relatively quickly but corrosion/erosion induced failures can take a few thousand hours of operation to show up.
According to sources close to the industry, FAA plans to reduce the time an aircraft can fly with single engine, after one of its engine failed. The current time is 330 minutes and would drop to low as 140 minutes. The reduced time will restrict the flight is certain routes.
The European Aviation Safety Agency (EASA) also expected to increase the inspection frequencies from its current 200 flight cycles per inspection.
Industry analysts says that Trent 1000 engine issue will definitely affect the Airlines in coming weeks as there are about 500 Trent 1000 engines in service.