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...