I can't argue with anything you've said.
I've been at this liaison business for about 20 years now. I had that first encounter with this type of damage at the onset of my so-called career and never again until recently ... now I've had the opportunity to re-live that first experience. I tried...
SuperStress:
Really?! I seem to recall in a previous life as a rookie liaison engineer that a similar problem had occurred. The aircraft in question was much larger (250-400 passengers) although the problem was located on the upper wing surface (7075-T6). The stress engineer at the time had...
The problem concerns a 0.200 thick 7475-T7351 lower wing skin panel with a sharp-bottomed v-shaped impact damage with approximate 0.050 depth in the outer surface along a skin joint. This damage was apparently caused by an HST11AG6 Hilite head being embedded into the skin panel. Aside from...
There shouldn’t be a problem between the stainless steel shroud and the aluminum sub-structure since the aluminum is probably anodized and primed. The rivet, however, should still be installed wet with a high-temperature sealant since the aluminum and monel rivet are quite dissimilar.
The impact force required to buck a monel rivet is higher than the force required for an aluminum rivet – the washer may be used for backup to prevent damaging or dimpling the 2024 aluminum sub-structure on impact.
