TAIL BOOM FITTING CRACK- Cal Fire
Originally Posted June 2014 These are photos showing a crack we found on a LH upper tailboom attach fitting. The crack was initiated at...
Main Rotor Retaining Nut Lock
Original Post 8/27/2018 I was contacted by a mechanic who in the process of removing a main rotor hub assembly after removing the main...
UH-1 Transmission Oil Lines
Reprint of original 4-15-2014 Blog Post In regards to the UH-1-05- ASAM-01 military message on transmission oil lines. I have personally...
Unintended Load Release Solution
There have been many unintended external load releases over the years and here is a simple way to reduce that number. Install this...
Main Rotor Drag Brace Outer Attaching Hardware
In my travels over the years I have found MANY aircraft with the main rotor outer drag brace bolt hardware incorrectly installed. General...
UH-1 Main Rotor Re-torque
This has been brought up before about a re-torque after main rotor installation. In this case the TM 55-1520-210-23-1 is not a help....