Combustor Rumble
Combustor Rumble can be a problem in engines that reverse the combustion gas flow prior toentering the 1st stage gas producer nozzle....
Drive Shaft Removal Tool
Do you know the P/N of the UH1 drive shaft removal tool? We have a customer looking for one and our company doesn’t have it. They stated...
Using Heat and Proper Alignment when Pressing Bearings into Critical Bores
This picture clearly shows the importance of using heat, and proper alignment when pressing bearings into critical bores. This damage was...
Collective Ground Adjustment
HAVE YOU CHECKED YOUR COLLECTIVE FRICTION LATELY? I just received a couple of photos of the set screws used to make adjustment of the...
42 & 90 Degree Gearbox Caps
A couple of weeks ago I was asked to give some basic information to the maintenance man the pickup team brought with them. He hadn’t...
UH-1 Maintenance Training Course
Do you have a new mechanic or mechanics that need a refresher course on the UH-1 helicopter? Do you need an IA renewal? Peter Frinchaboy...
Servo Mount Nuts
Hi this is Pete from Metro Fire again. On the NTSB accident website there is an accident involving aircraft UH-1H N260TA 5-23-2014. There...
HYDRAULIC SYSTEM HEALTH & WELL BEING
With the military releasing aircraft to civilian operators, many civilian operators are following the maintenance schedule the military...
Droop Cam Jack Shaft
In 1992 UH-1-92 ASAM-13 was issued that later became TB1-1520-210-19 one time & recurring inspection of the droop compensator jackshaft....
Main Rotor Support and Bumpers
The military main rotor was modified with a plate bolted to the bottom of the main rotor yoke and a support bolted to the mast just above...
