e Guide 21229 (Note: Next Due times based on Total Airframe Time except Engine Overhauls and HMUs which are based on Engine Times) TAIL GEARBOX AND ROTOR INTERMAEDIATE GEARBOX AND OTHER COMPONENT NEXT DUE' COMPONENT NEXT DUE' Tail Gearbox 7294 Intermediate Gearbox 8959 TR Blades 20.000 Pitch AFCS Actuator 8063/7556 TR Ho