old Posted May 9, 2018 Report Share Posted May 9, 2018 Has anybody seen broken droopstop ring holders break and do u know why it happened? Quote Link to comment Share on other sites More sharing options...
Heliian Posted May 10, 2018 Report Share Posted May 10, 2018 Yes. Excessive flapping is one cause. Corrosion and wear, fatigue. I saw 2 examples and the parts stayed on the aircraft both times. It's a commonly overlooked part, covered in grease and such. Anytime you have access, they should be thoroughly cleaned and inspected. Quote Link to comment Share on other sites More sharing options...
GrayHorizons Posted May 10, 2018 Report Share Posted May 10, 2018 They do take a beating though. I've seen a bent droop ring after a rollover, yet the stirrups were still doing their job. Most in service likely wont pass inspection as per the manuals. They are one of those parts that is neglected. The cracked ones start at the corners where the ring is allowed to bang and wear into them. you generally will feel a sharp point of metal at this point. You didn't specify if it was 4 contact or Timken. They are different part numbers and the Timken has a machining mod available on them to prevent contact with the mast. Quote Link to comment Share on other sites More sharing options...
old Posted May 10, 2018 Author Report Share Posted May 10, 2018 Thanks for the replies Quote Link to comment Share on other sites More sharing options...
sirlandsalot Posted February 2, 2019 Report Share Posted February 2, 2019 Late, but yes years ago I shut down in a fairly hard right crosswind in alberta on those old pine beetle contracts. One of the brackets broke as it was winding down, made a terrible noise but luckily it was very slow and I got the rotor brake on. The ring ended up all cockeyed md luckily no damage to the mast. Was hard to find a part For AOG. Quote Link to comment Share on other sites More sharing options...
old Posted February 4, 2019 Author Report Share Posted February 4, 2019 Thanks Quote Link to comment Share on other sites More sharing options...
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