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RB 211 Maintenance Scope
B-7
RB 211 - Overhaul Workscope
This overhaul workscope is conducted as schedule maintenance at approximately 50,000
Operating Hours, providing the engine had a midlife inspection repair at 25,000 hours.
On Receipt of Engine
• Take pictures of engine on the inbound truck (i.e. tie down straps etc.)
• Inspect and report condition of engine transportation stand and bag.
• Open bag and photograph all four sides of the engine especially engine components or parts
that are damaged or missing.
• Carry out full “booking in” inspection of the engine, checking that the rotating assemblies are
free of rubs and stiffness.
• Any missing parts/components or other visual abnormalities should be immediately reported
to the Customer.
• Remove the Nose Bullet, “A” Frame, Intake Extension Ring etc. and prepare the engine for a
vertical lift.
• Carry out an airflow check of the 01, 03 and 05 module oil lines and record findings.
• Place the engine on the “pot” vertically for removal of all the 06 module components
(i.e. all pipes, harnesses etc.)
• Bulk strip the engine into its five (5) modules.
01 Module:
Air Inlet and Front Bearing Support (Section 1020)
• Detail strip the module – wash, NDT and inspect all components.
• Replace the I.P. Roller Bearing.
• Incorporate MOD 633 on IP front static seal.
• Inspect anti-icing manifold, check for damage, cracks or other defects. Ensure MOD 961 is
embodied.
• Inspect anti-icing sleeve for wear. NOTE: Discuss with Customer deletion of Anti-Ice
System (Mod 1051) where applicable.
• Inspect nose bullet for dents, cracks and other defects. Incorporate IRBT1120.
• Inspect support frame assembly. Incorporate IRBT1120.
• Inspect actuating ring check for free movement.
• Inspect bearing, housing, repaint if necessary.