1510 W. Drake Drive, Tempe, Arizona USA 85283
info@vanhornaviation.com
Technical Publications
service & repair
VHA Document Library
Service Bulletins
| SB Number | Date | Applies to | Description |
|---|---|---|---|
| 33000-4R5 | November 2022 | 20633000-101 A007-A009 and A012 to A104 | Balance weight receptacle inspection. Click here to watch video. |
| IL 33000-6R1 | March 2025 | 20633000-101 all serial numbers | Information Letter: Addresses collective bounce recovery and mitigation |
| IL 30000-2R1 | March 2025 | All VHA 206 Main Rotor Blades | Information Letter: Addresses high vertical vibration levels in a hover during rotor track and balance |
Technical Bulletins
| TB Number | Date | Applies to | Description |
|---|---|---|---|
| 20630000-1R1 | December 2022 | All VHA 206 Main Rotor Blades | Installation of elastomeric coating and polyurethane tape for minor repair of abrasion strip cracks, paint cracks, and edges of existing polyurethane tape. Replaces CSS-501. |
| 20630000-2R3 | March 2025 | All VHA 206 Main Rotor Blades | Track and balance guidance and charts for VHA main rotor blades. Added troubleshooting & charts for hover vertical vibrations. Click to watch video for more details. |
| 2062200-1R2 | August 2023 | All VHA 206 Tail Rotor Blades | Removal and installation of WC-6TG-10 bearings. Replaces CSS-500. |
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