The picture above shows that the retainer for both the upper and lower vertical fin hinge pin was installed incorrectly. The photo of...

Back in late 1976 the military came out with TB 55-1500-219-20-6 to inspect the connecting links P/N’s 204-076-267-1 & 3 & 5 ( the parts...

Several years ago on another contract, we had a 212 that had come in after a day of flying with a logbook entry of “HIGH FREQ VIBRATION...

When installing trunnion’s in any of the five positions on the swashplate be sure to install the inner retaining bolt first. The one on...

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Alright for those with eagle eyes, what is wrong with this Main Rotor System?