This quote from the link posted in #611 above :
“This proposed AD is prompted by tests indicating that an existing MGB filter bowl assembly can fail under certain loading conditions including those associated with a damaged MGB filter or mounting study resulting from high frequency maintenance tasks,” says the FAA.
Questions :
1. What other loading conditions are they referring to ?
2. Is this a failure in the original design, or a failure as a result of "high frequency maintenance tasks" not envisaged at the design stage ?
3. Re. Ironchefflay's comment "..it's not the easiest to access with all the cowlings on." - how much does this factor in the filter stud issue ? is it a design issue ?