Blade 400 RC Heli Accident

I was trying to solve a problem with my gyro and tail servo. So, I decided to overhaul the heli. Unfortunately, I may not have secured the feathering shaft tight enough. The head assembly pretty much exploded in front of me and sent the blades flying at me at around 2000 RPM. Luckily, I was just about to land it, so it was very low. This could have been much worse! Phew! =)