B-4 FUNCTIONAL GROUPS (COLUMNS 1 and 2 )
The functional groupings shown in the sample below identify maintenance significant components,
assemblies, subassemblies, and modules with the next higher assembly.
Fuel control, fuel boost pump, gover-
nors, fuel filter assembly, sequence
valve, fuel manifold, fuel nozzle,
Servicing, handling, inspection re-
external Iines and hoses.
quirements, lubrication charts,
overhaul and retirement schedules,
External lines & hoses. (As appli-
thermocouples, ignition harness,
electrical cables, history record, torque
(COLD SECTION MODULE)
overspeed sensor, Np sensor, alternate
Rotor, blades, vanes, impeller,
stators, inlet guide vanes, main
frame, particle separator, bleed
valve, bearings, seals, external
lines & hoses.
Tanks, oil filter, oil cooler, lube and
scavenge pumps, oil filter bypass
sensor, external lines and hoses.
(HOT SECTION MODULE)
Liners, nozzles, stators, rotor,
Reduction gear assembly, output
shaft, seal, bearing.
Nozzles, rotors, blades, exit guide
ACCESSORY GEAR SECTION
Input/and output gears, seals,
chip detector, housings, drive