I don't know if any of you has read the article about a serious Malysia B777 incident in the latest WAFN issue.
Following the article, a B777 bound for Auckland, while still in climbout from KUL suffered from an engine problem: The oil flow had suddenly stopped. The pilot immidiately shut down the engine, and while doing that the same problem appeared on the other engine. The crew couldn't shut down a second (and the last!) while still flying at relatively low speed, so they decided to fly back to KUL immidiately. No fuel dump was possible any more, as any delay would have caused a disaster. The pilot touched down far above the maximal landing weight.
The found out that a maintenance crew had forgotten to fix some items inside the engine and that caused a metal-metal touch, resulting in cutting the oil flow.
Now I ask you: What would happen if a 240-minutes ETOPS rated B777X, somewhere over the Pacific, suffers from such a problem, some four hours away from the next airport...
I don't know for sure, but I don't think that the plane could remain airborne for four hours without engine power. The Malaysia incident shows that two engines CAN fail, so nobody should doubt that.
In such a case, some four hours away from an airport, a B777X has a problem. Not the A340-500...it has another two engines.
I really like the B777, but I'm concerned about turning up the ETOPS limits just like adding new seats to an aircraft.
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