53-50 Empennage Assembly
Refer to R66 Illustrated Parts Catalog (IPC) Figure 53-19.
A. Removal
1. Remove tail rotor guard assembly per Section 53-53.
2. Remove hardware securing forward MS21919WDG3 clamp to upper horizontal stabilizer.
Cut and discard ty-raps securing position light and gearbox chip detector wires and
connectors together. Disconnect position light at connectors.
3. Refer to Figure 53-6. Support C004-2 empennage assembly, remove two bolts and
associate hardware securing assembly to tailcone casting, and remove assembly.
B. Installation
1. Refer to Figure 53-6. Position C004-2 empennage assembly on tailcone casting. Install
two bolts and associate hardware securing assembly to casting; select bolt length to
meet torque requirements per Section 20-30. Standard torque bolts per Section 20-32,
and torque stripe per Figure 5-1.
2. Connect position light wire connectors. Secure wires and install hardware securing
forward MS21919WDG3 clamp to upper horizontal stabilizer. Install MS3367-4-9 or
-5-9 ty-raps as required to secure wires and connectors together. Cinch ty-raps until
snug without over-tightening, and trim tips flush with heads.
3. Test and verify correct function of position and TR chip light circuits.
4. Install tail rotor guard assembly per Section 53-53.
53-51 Vertical Stabilizer
Refer to R66 Illustrated Parts Catalog (IPC) Figure 53-19.
A. Upper Vertical Stabilizer Removal
1. Refer to Figure 53-6. Remove fastener securing vertical stabilizer C554 clips to
upper horizontal stabilizer trailing edge.
2. Support C042-1 upper vertical stabilizer. Remove four bolts (threaded) and spacers
securing C042-1 stabilizer to upper horizontal stabilizer, and remove C042-1
stabilizer.
3. If replacing stabilizer, C554-1 clip may be reused. Drill out two rivets securing clip
to stabilizer.
25 OCT 2010 R66 Maintenance Manual Chapter 53 Fuselage Page 53.17
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