Crab
A few Haddon-Cave salmon letters are certainly in order me thinks.
Today there is yet another FAA AD on the S-92 Main Gear Box:
We are adopting a new AD for the Sikorsky Model S-92A helicopters. This AD requires an NDI, eddy current or FPI, of each MGB upper housing assembly rib on the left, right, and forward MGB mounting foot for a crack because it cannot be detected visually.
This AD is prompted by a report of a crack found on the MGB upper housing assembly left mounting foot forward rib during removal of an MGB that had reached its life limit of 1,000 hours TIS.
The MGB mounting foot has a history of two types of cracks. The visual inspection for these two types of cracks is required in AD 2010-24-04 (75 FR 70812, November 19, 2010).
The discovery of a third type of crack on the left mounting foot forward rib may not be reliably detected by visual inspection.
This condition, if not detected and corrected, could result in loss of the MGB, and subsequent loss of control of the helicopter.