Aero Energy
LM2500SAC Report
Preliminary Report 19 October, 2012 For
Burak Marine Aliağa İzmir TURKEY ESN 456-675
Under
Customer Representative: GE Field Service Representative:
Burak ALDEMİR Adnan LEBLEBİCİ
Mehmet AKIN (Granite)
All technical recommendations and information contained in this report are based on GE manuals that have been developed and approved for use with GE engines and parts that have been operated and maintained in accordance with GE technical documentation and recommendations. GE has no technical knowledge of, nor obligation for, non GE-approved parts and repairs. Accordingly, this report is not intended to apply to non GE-approved parts and repairs, nor to any parts that may be directly or indirectly affected by non GE-approved parts and repairs.
Report completed by – Adnan Leblebici
Aero Energy
LM2500SAC Report
CONCLUSIONS & RECOMMENDATIONS The purpose of this visit was to perform a visual and borescope Inspection. The engine visually was found in satisfactory conditions. The compressor, combustor and power turbine stage 1 & 6 blades & nozzles were inspected. This periodic borescope inspection was completed in reference to GEK 97310 Vol I, Chapter 5-3.
Outage Data: Engine Data : ESN Model
456-675 LM2500PI
Engine Fired Hours Engine Fired Starts Trips
Package Total Hours Package Fired Starts Total Trips
Maintenance Data: WP, SB, SL, PB, PL Performed Chapter 5-3.5
Revision/Manual Reference
Borescope Inspection GEK 97310 Vol I (Change 1 – 15 April 2010
Report completed by – Adnan Leblebici
Date Completed
Comments
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LM2500SAC Report
DETAILS AND DATA Purpose of visit: This inspection was completed in reference to GEK 97310 Vol I, Chapter 5-3.5.
Work performed: A borescope of the engine was performed using a flexscope and a turning tool.
Daily Activities Thursday, 18 Oct 2012 Units are original packages that were removed and moved to warehouse. Engine was kept at warehouse almost 1 year without preservation. HP compressor, combustor and HP turbine borescope ports were removed. Only 1 fuel nozzle were removed and inspected. Found it in good shape. Feeder tubes are fine. HPCR assy stage 1 blade midspan dampers are generally in good condition. Found oil leak signs at first stages of the compressor case. Found a crack panel 3 inner liner, out of limits. Some erosion and discoloration was found. HP compressor was found fairly dirty but no anomaly detected. 1st stage HPT blades: nothing abnormal was observed on flow path concave side and leading edges. Some loss of coating was detected. 2nd stage HPT blades: nothing abnormal was observed on flow path concave side and leading edges. 1st stage HPT nozzles: Cooling holes on HP S1 nozzles are mostly clogged. See pictures … Engine external status: engine shows an external dirtiness in general. A limited inspection of the TMF liner was performed. No damage or abnormal conditions were observed
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LM2500SAC Report
Results:
Engine legs
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Corrosion on compressor
LM2500SAC Report
Package LHS fwd
Package RHS aft
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LM2500SAC Report
Legs
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LM2500SAC Report
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LM2500SAC Report
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LM2500SAC Report
Borescope Pictures High Pressure Compressor
Midspan
Midspan, sign of wear at carboloy
Stage 1, signs of oil on compressor case
Stage 2
Stage 3, white build-up residue on blade surface
Stage 4, one blade has dent on LE
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LM2500SAC Report
Stage 5
Stage 6
Stage 6
Stage 8
Stage 9
Stage 10
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LM2500SAC Report
Stage 11
Stage 13
Stage 16
Stage 16,wear on surface
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LM2500SAC Report
Combustor
Swirler
Swirler inlet, sulfur buildup/coating delamination
Inner liners
One crack, inner liner at 3 rd panel.
Trumpet plates, discoloration
Outer liners
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LM2500SAC Report
Secondary swirler, carbon buildup
Light carbon streaks
Fuel nozzle
Crack sign
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LM2500SAC Report
HPT
S1 nozzle, cooling air holes clogged, heat distress is observed by dark coloration on nozzles.
S1 blades, crack at tip and dust on shrouds
Wear on shrouds
Rub signs on shrouds
S1 Blades TE
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LM2500SAC Report
S2 blades, salt on concave sides
S2 blades TE
S2 nozzles
S2 blades
S2 nozzles
S1 blades shroud, signs of wear
Report completed by – Adnan Leblebici
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LM2500SAC Report
Power Turbine
PT Stage 1
PT Stage 1
GENERAL INSPECTION RECORD GAS TURBINE Variable Geometry Variable Stator Vane system
Report completed by – Adnan Leblebici
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LM2500SAC Report
L&S Pump
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