Engines continued
 

         For more information on turbine engines see:  Page 1  Page 2       
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These are seals from the compressor side. This is common for turbines that have been stored for a few years. If this turbine had been started, there would have been damage done to the seals and shaft.

 

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These are compressor turbine discs that have been over tempted. Note the scaling on the blades.

 

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This is the first stage of the compressor. Note the corrosion and damaged blades. The casing has also been damaged from starting with all the dirt, grime and corrosion attached to it.

 

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These are compressor turbine blades that have been damaged by metal particles which have separated from deflector, diffuser vanes, inner and outer combustion chamber, and outer combustion chamber tube rivets. This is a common site in 1500 hour D & E Turbines.

 

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These are damaged diffuser vanes. This is a stationary section, and there is no answer for this failure from Walter. Two out of ten turbines have this problem.

 

034-1-s.jpg (14896 bytes) This is a turbine compressor shaft bearing damaged during shipping. Most run out turbines that have been shipped first by road out of Russia or Ukraine, then shipped freight, would cause damage to the bearings. This particular bearing that has this damage can be heard through the exhaust area after shut down.

 

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This is the rear bearing on the compressor turbine shaft. All 1500 hour D & E turbines have this situation of carbon build-up. As can be seen, the seal becomes inefficient, making the problem worse. The cooling holes and slots in the shaft carbon up, causing overheating of the bearing. After shut down, the bearing can be heard clearly before the shaft comes to a stop.

 

035.jpg (16025 bytes) A corroded compressor section from inactivity, which is common for turbines that have been in storage for a few years. If the turbine is started, in this state, irrepairable damage is usually the end result.

 

036-s.jpg (16383 bytes) A damaged bearing carrier from the propeller shaft in the gearbox. The probable culprit being a prop strike. Fortunately, this is not a common problem.

 

037.jpg (14443 bytes) Loose nuts and washers from vibration, more than likely, caused this damaged compressor turbine blades or improper torque of nuts.
            


   For more information on turbine engines see:  Page 1  Page 2    

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