Threads on to the end of the mast to act as a guide for installation and also protects the mast nut threads during maintenance.
- ATA Chapter:
- 62-Main Rotor
- ATA Chapter:
- 63-Main Rotor Drive
- Maintenance Type:
- Flightline
Threads on to the end of the mast to act as a guide for installation and also protects the mast nut threads during maintenance.