All of a sudden, the S-92 has “interim” gear boxes?
- They still crack – do they have run-dry capability yet?
- What about the military version Canada bought which must have run dry?
Lots of recent coverage about ongoing problems with the S-92 main gear box and transmission housings – apparently with no end in sight.
John Croft at Flight Global cites the latest EASA and FAA emergency airworthiness directives:
“This new housing configuration is added to the applicability of this AD because it is prone to the same cracks as the [main gearbox] listed in the current AD”
From the CBC: Offshore chopper problem not fixed: FAA
http://www.cbc.ca/ ewfou/ ewfoundland-labrador/story/2010/12/01/nl-faa-ad-sikorsky-1201.html