1-92 Additional Component Maintenance (continued)
A. 12 YEARS (continued)
Part Number Description Action
C343-8 Tube
Disassemble and visually inspect exterior and
interior. Verify no corrosion.
D211-3 Hydraulic Reservoir Assembly
Perform 12-year inspection per § 5-54, or
replace with new or overhaul exchange.
D212-5, -6 Hydraulic Servo Assembly
Perform inspection per § 29-30 Part C.
D918-1 Elastic Cord – Longitudinal (cyclic
pivot)
Replace with new.
D918-2 Elastic Cord – Lateral (cyclic pivot)
Replace with new.
D918-3 Elastic Cord – (collective)
Replace with new.
F006-1, -6 Main Rotor Gearbox Assembly
Submit to RHC for 12-year maintenance,
or replace with new or overhaul exchange.
12-year maintenance includes seal
replacement, o-ring replacement, sealed
bearing replacement, rubber mount
replacement, R66 SL-11 upgrade (as
applicable), and inspection.
F014 Landing Gear Assembly
Perform 12-year inspection per § 5-53, or
replace with new.
F018-1 Clutch Assembly
(Revision C & prior)
Replace with new or overhaul exchange
clutch assembly.
F018-1 Clutch Assembly
(Revision D & subsequent)
Submit to RHC for 12-year maintenance,
or replace with new or overhaul exchange.
12-year maintenance includes seal
replacement, o-ring replacement, and
inspection.
F121-3, -5,
& -7
Push-Pull Tube Assembly
Disassemble and visually inspect exterior and
interior. Verify no corrosion.
F579-1 Engine Air Bellmouth
Replace with new.
F642-6 Engine Shaft Weldment
Replace with new F642-7 weldment.
F650-1, -2 Main Gearbox Mounting Bolts
Visually inspect exterior and interior. Verify
no corrosion.
F651-2 Element – Main Gearbox Filter
Replace with new.
F651-3 Seal Kit – Main Gearbox Filter
Replace with new.
F771-1 Filter – Engine Air Intake
(foam, standard)
Replace with new.
F771-4 Filter – Starter-Generator (cooling air)
Replace with new.
F771-7 Filter – G918-1 Box Assembly
Replace with new.
F792-1 Dual Tachometer
Perform accuracy check per § 95-23 Part D.
G201-1 Frame, Servo Support
Remove B163-2 rod end. Visually inspect
exterior and interior. Verify no corrosion.
JUL 2020 Chapter 1 General Page 1.13
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