Noticed a thread re-S76 tail rotor and found this reply by NickLappos
The S76 TR is the same as the Black Hawk's but was developed about 3 years later. When the 76 design was being finalized, the BH was going through a bit of development angst where the bonding of the paddle to the blade spar was working loose. There was a recurring ultrasound inspection and the chief S76 designer decided to use a "belt and suspenders" approach, so it is bonded and bolted. Since then the hawk process was squared away, so it dropped the inspection.
How does the 92 tail rotor compare to the Black Hawk and S76 ? Could this be an occurrance of the Blackhawk problem ?
NST