Ie H Page 1 of 14
E Thermocouple 2 nd Stage Nozzle 2 nd Stage Blades 2 nd Stage Tip Shoe Blade Retaining Pins 3 rd Stage Nozzle 3 rd Stage Tip Shoe 3 rd Stage Blades External Variable Guide Vanes IGV 00 Stage 0 Stage 1 st Stage 2 nd Stage A Air inlet Air Inlet uct Air Inlet Screen Compressor Inlet GV 00 Stage Blades 00 Stage GV Compressor Exit GV Combustor Interior Combustor Pins Torch Tube Sliding Ring 1 st Stage Nozzle 1 st Stage Blades RGB Inspection Pinion & Star Gear Star Gear 2 nd stage Accessory Gear Low Speed Brg B Borescope 4 th Stage Blades 4 th Stage GV 5 th Stage Blades C Borescope 11 th Stage Blades 11 th Stage GV 12 th Stage Blades Page 2 of 14
Air Inlet Air Inlet uct a) Potential FO A b) Corrosive Pitting c) Cracks d) Excessive Air Inlet Air Inlet Screen a) Potential FO A b) Cracks, damaged mesh Air Inlet A Inlet Guide Vanes and size b) Excess of area Page 3 of 14
Air Inlet A 00 Stage Compressor Blades width and metal curling. Air Inlet A 00 Stage Guide Vanes Superfici al nicks Page 4 of 14
Borescope B 4 th Stage Compressor Blades width and metal curling. Borescope B 4 th Stage Compressor GV Borescope B 5 th Stage Compressor Blades width and metal curling. Page 5 of 14
Borescope C 11 th Stage Compressor Blades width and metal curling. Borescope C 11 th Stage Compressor GV Rust on both sides Borescope C 12 th Stage Compressor Blades width and metal curling. Page 6 of 14
Compressor Exit GV. Quite advance d rust a) Pilot Centerbody erosion. b) hole contamination or blockage. Sulfidatio n c) Cracks. Quantity d) Liquid only: broken main fuel spokes. Combustor Interior a) Cracks. Quantity and size b) Thermal Erosion. c) Hot spots. d) Buckling or warpage. Page 7 of 14
Combustor Pins a) Cracks. Torch Tube a) Thermal erosion. Clamp ring/sliding Ring a) Thermal erosion. epth and affected Page 8 of 14
1 st Stage Turbine Nozzle: - Leading edge - Airfoil surface - Trailing edge a) Cracks. Quantity, length, and orientation. b) Thermal erosion. epth and affected c) F.O.. Affected area 1 st Stage Turbine Blades: - Leading edge - Airfoil surface - Trailing edge - Blade Tip a) Cracks. Quantity, length, and orientation. b) Thermal erosion. epth and affected c) F.O.. Affected area width. Page 9 of 14
T5 E 2 nd Stage Turbine Nozzle: - Leading edge - Airfoil surface - Trailing edge a) Cracks. Quantity, length, and orientation. b) Cracks. c) Thermal erosion. epth and affected T5 E 2 nd Stage Turbine Blades: - Leading edge - Airfoil surface - Trailing edge - Blade Tip a) Cracks. Quantity, length, and orientation. b) Thermal erosion. epth and affected c) F.O.. Affected area width. T5 E 3 rd Stage Turbine Nozzle: - Leading edge - Airfoil surface - Trailing edge a) Cracks. Quantity, length, and orientation. b) Cracks. c) Thermal erosion. epth and affected Page 10 of 14
T5 E 3 rd Stage Turbine Blades: - Leading edge - Airfoil surface - Trailing edge - Blade Tip a) Cracks. Quantity, length, and orientation. b) Thermal erosion. epth and affected c) F.O.. Affected area width. Page 11 of 14
location External IGV a) Cracks b) Lever arms bent c) Grommet out of position on unison ring External d) Corrosion 00 Stage a) Cracks b) Lever arms bent c) Grommet out of position on unison ring d) Corrosion External 0 Stage a) Cracks b) Lever arms bent c) Grommet out of position on unison ring d) Corrosion Page 12 of 14
location External 1 st Stage a) Cracks b) Lever arms bent c) Grommet out of position on unison ring d) Corrosion External 2 s Stage a) Cracks b) Lever arms bent c) Grommet out of position on unison ring d) Corrosion Page 13 of 14
location Inspection RGB Pinion ouble Helical & Star Gear a) Gear wear b) Teeth Cracks Inspection RGB Star Gear 2 nd Stage Ring Gear a) Gear wear b) Teeth Cracks Inspection RGB Accessory Gear a) Gear wear b) Teeth Cracks Inspection RGB Low Speed Bearing a) Wear Page 14 of 14