Blade 350 QX30th September 2013
Products: Propellers on the Blade 350 QX (BLH7800, BLH7880) not marked with a “B”.
Defect Issue: Horizon Hobby has received a limited number of reports relating to propeller failures on the Blade® 350 QX quadcopter.

What to Do:

If you have experienced a propeller issue with the 350 QX, perform the corrective action below. Horizon Hobby will offer replacement propellers and screws at no charge. We anticipate these new propellers will be available in October.

Corrective Action:
1. Please complete the electronic Propeller Request Form by clicking here
2. Upon receipt of the completed form, replacement propellers will be sent to you.
3. Remove the battery from your 350 QX.
4. Use a 2.0mm hex driver to remove the screws from the propeller hub
and remove the propeller.
5. Discard the used screws and propellers (do not reuse).
Screw Driver
6. Align the new propeller for screw alignment. Ensure correct propeller placement
(motor 1 clockwise, motor 2 counterclockwise, motor 3 counterclockwise,
motor 4 clockwise).
7. Use the new screws to attach the replacement propeller (shown with a “B”) to
the propeller hub. The supplied screws already have a dry thread locking
compound on the threads. Do not use additional thread locking compound.

WARNING: DO NOT USE liquid threadlocking compound.

8. Using a 2.0mm hex driver, tighten the screws until just snug and then
an additional 1/12 turn. Do not overtighten.
Screw Driver

If you have any questions, please call Horizon Hobby UK Product Support at 01279 641097

We apologise for this inconvenience. Horizon disclaims all liability and warranties for any consumer failing to act upon this product bulletin.
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