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. ...

As commonly known, the main beams at stations 14Left and 14Right are the foundation for the Huey structure.   These main beams run from...

I have seen many 42 deg. and 90 deg. gearbox sight glasses that get stained and the oil very dark. Many times this shows up after a...

Original Article 02/05/2018 I have heard of at least four aircraft in the last six months having hard landings some severe, luckily with...

Just a reminder that UH1OPS has a full library of UH1OPS PS Magazine related articles available as a free resource to UH-1 operations...

In the picture the large hose that goes from the top of the diffuser housing down to the quick disconnect at the deck bleed air manifold...

The start Fuel Nozzle pictured is not spraying fuel for start. Even if all your igniters are firing with no start fuel nozzles...

After knowing about this information for years I felt this is information that many may not know about, the radio active materials in the...

A Quick Guide to Troubleshooting Hydraulic System Internal Leaks Here in my town, there is an automobile radiator repair shop with a...

Original Article published 4/21/2016 Aircraft Structural Repair, Inc. of Stevensville Montana recently received the STC SR02475SE for the...