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Probable cause of Oil leakagr of T56 engine aftet shut down.


Badiul Alam
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Can anybody explain the probable causes of static oil leakage aftet eng idle grd run from Turbine rear bearing( flooding in front of 4 th stage rotor), burner drain vslve( rear one),  6:O clock, lower bleed valve. Tank oil lvl also reduced from 10.5 to 3.5. But during run Everything was fine.  Eng is only 1021:44 hrs op after OH.

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3 hours ago, pjvr99 said:

Main oil pump: pressure regulator poppet valve has cracked

 

Ok. For this,  can oil leakage occur from rear bearing(Exhaust cone/ Dome over the pump) bottom side just front of the 4 th stage turbine rotor viewed from rear.  

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