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RB 211 Maintenance Scope
B-3
instructions. These instructions and checks are to be found in the Maintenance and Parts
Manual, off-engine parts, Volume 1A, Part 1A, Chapter 3 and Chapter 3 of Part 2A.
• On re-start of the engine, carryout an airflow control system check. Chapter 7, paragraph 4
in the Maintenance Manual gives the full details.
RB 211 - Midlife Workscope
To conducted schedules maintenance of the engine and overhaul of the 04 Module plus the I.P.
Stage 5, 6 and 7 (OGV Ring) Stator Vane assemblies at approximately 25,000 operating hours.
This work to be carried out at Customers premises if ‘POOL’ assemblies are available. The
same workscope would apply for a shop visit.
On Removal
• Conduct Engine Inspection, include external visual inspection and record any damage to the
engine accessories.
• List and report any missing parts or other visual abnormalities/conditions observed.
• Ensure rotating assemblies are free of rubs and/or stiffness.
• Bulk strip engine into modules.
01 Module:
• Visually inspect, in the bulk strip condition, Front Roller Bearing, Abradable Seals, Variable
Inlet Guide Vanes, Actuating Ring and IGV ram.
• Electrically check the N1 Magnetic Speed Sensors and electrical connector.
• Visually Inspect Diaphragm Seal, Cylinder and Cover Abradable Seals.
02 Module:
• Remove the I.P. Compressor Half Casings from the Assembly
• Remove Stage 5 and 6 Stator Assemblies. Prepare these components for shipping to Vendor
for full overhaul to latest mod. Standard.
• Visually Inspect Compressor Half Casings and Stage 1 to 4 Stators in the Bulk Strip
Condition (i.e. Check Blade Path Linings, Stators and Inner Shrouds).
• Inspect the IPC Rotor as an Assembly.
• Rebuild the 02 Module using ‘POOL’ Assemblies.
03 Module:
• Remove the Stage 7 Outlet Guide Vane (OGV) Ring assembly. Prepare the component for
shipping to Vendor for full overhaul to the latest mod. Standard.