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Old 31st May 2022, 12:56
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wrench1
 
Join Date: Oct 2006
Location: USA
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Originally Posted by Agile
Can somebody educate me:
Assume a main rotor gearbox and epicycle (with 300h since New) is involved in a roll over, rotor head and blades are damaged biggly, but gear box looks quite OK.
what hapen to such component:
A: inspection and dynamic testing
B: complete regular 3000h overhaul
C: discarded

if somebody knows how it works please let me know

Thanks
Most OEMs have either a published rotor strike special inspection or provide a tailored inspection specific to the incident. Depending on the inspection some are tiered by the level of blade damage or if the blade was powered or not. In your examp!e, I believe those components would require at least an overhaul based on my experience with a proper note on the incident. In addition there will probably be engine related inspections as well due to the strike. The manuals would give more details.
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