Originally Posted by
ORAC
“V-22 Prop Rotor Gear Box (PRGB) Input Quill/Clutch Redesign: To eliminate resident issues with Input Quill and clutch and to Purge Fleet of Thin Densed Chrome.”
That last bit is semi interesting ; "purge the fleet of thin densed chrome". There has been a (roughly) 20 year long effort among DoD activities to stop using a variety of materials (sealants, primers, conversion coatings, etc) that are chrome based. I wonder if they are changing chrome plating to {some other hard material} in its place.