Back to Squawk list
  • 16

Engine failed on United Airlines flight after pilots increased power, NTSB report says

提交時間:
 
The right engine of United Airlines Flight 328 failed with a fiery bang minutes after takeoff last month when the aircraft's pilots throttled up the engines to minimize expected turbulence, National Transportation Safety Board investigators said in an update Friday. The NTSB update also said a fan blade that failed in the Boeing 777's engine had most recently received a close inspection for wear and tear in 2016 and was less than halfway to the point of requiring another inspection.… (www.msn.com) 更多...

Sort type: [Top] [Newest]


shenghaohan
Shenghao Han 1
I am surprised the fan blade inspection is dependent on cycles, not engine hours...
MHarryE
Michael Enzmann 2
Cycles because blade cycles in reaction to force vector of thrust so there is a major bending load at full thrust that does not vary with each revolution. The bending stress is reduced to a lower level at climb thrust. In this case they throttled up creating a new stress cycle and BAM. 1175 was really odd because no change in stress - cruise. Their CNN expert says the fan blades are subject to so much heat. Odd, because heat is introduced in the combuster. The fan is always at air temperature because its air cooled - range from +50C to -65C.
Quirkyfrog
Robert Cowling 0
So more inspections seem like a good idea. They should know the lot that blade was part of, and should be looking at every engine with a similar lot coded blade installed. Seems simple enough. They have those records somewhere.

[This comment has been downvoted. Show anyway.]

登入

還沒有帳戶嗎? 現在就註冊(免費),設置諸多客制化功能、航班提醒等等!
本網站使用cookie。您使用並繼續瀏覽本網站,即表示您接受這一點。
退出
您知道FlightAware航班跟蹤是由廣告支持嗎?
通過允許展示來自FlightAware.com的廣告,您可以幫助我們使FlightAware保持免費。我們努力使我們的廣告保持相關性,同時不顯突兀,以創造一流的體驗。在FlightAware上將廣告加入白名單快速而簡單,或者請您考慮選擇我們的高級帳戶.
退出