> I have seen the work on the only Europa which has
> undergone Mod 74 courtesy Andy Draper. We asked the
> same question and the feeling is there isnt enough room
> to get a spanner around the securing nut to tighten it
> - its a lot easier through the wing underside.
> The access hole is about 1.5" diameter and the repair
> afterwards extends to about 9" square. As its on the
> underside it has little effect on the aerodynamics of
> the wing and is easy to conceal.
> My understanding is the PFA will consider an
> alternative means of access and someone is looking into
> this.
> One aspect of Mod 74 (yet to be decided) is that it may
> incorporate a tie bar similar to the weight increase
> mod - or the present weight increase mod may become
> mandatory. There is a question mark over the
> effectiveness of the top hat stiffeners currently
> specified in the older Europas (without tie bars).
I am sure it is decided as Mod 74 is now published with
the need for a tie bar if you don't have Mod 52.
The access hole in the Mod is 2 1/4 inches
RH
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