Filter
Top Products
EPRI Proprietary Licensed Material
RB 211 Maintenance Scope
B-14
• Detail Strip, Clean and Inspect.
• Embody the following:
− RN 5018 – HP/IP support internal pipe inspection/test
− RN 5029 – Replace thread inserts
− OIA 027 – IP Turbine Blade Tip clearance check
− OIA 033 – Debris Ingress
− OIA 036 – Oil feed pipe crack detection
− MOD 1181 – IP Bearing retainer improved abradable/clearance (1181/121)
• Strip coating and crack test the IP NGV’s. If satisfactory, re-protect with Sermaloy “J” in
accordance with MOD 1110.
• Replace the IP and HP roller bearings.
• Renew the ‘Metco” on HP and IP bearing retainers.
• Inspect HP and IP bearing support as follows:
X-Ray to ensure integrity of all internal tubes and brackets
• Inspect all panels and seals.
• Visually inspect main IP casing for any discrepancies.
• Renew honeycomb seal on IP seal segments; incorporate MOD 1141 if applicable on original
part number.
• Inspect all remaining components.
• Replace the inserts at theT6 thermocouple locations.
• Incorporate MODs 1084 and 1129. It is recommended to incorporate MODs 1123, 1135 and
1136.
• Rebuild as per standards procedure.
06 Module:
• Wash and inspect all pipes.
• Visually and electrically inspect harnesses and thermocouple harness.
• Overhaul the fuel burners in accordance with the Rolls-Royce Overhaul Standard.
• Recondition all accessories as such IP and HP bleed valves and bleed valve controller.
• Electrically check HP3 transducer.
• Inspect accelerometers or vibration pick-ups.
• Pressure test burner feed pipes.
• Strip and clean scavenge block assembly.