Yes, up until the the inspection you are assuming the installation is correct.
Not really.
The only assumption you, as an airline, may implicitly be making is that the FAA's assessment that the aircraft can be flown for another 7/21 days before the inspection is a reasonable one. That doesn't imply any expectation of what the inspection will find.
Or, if the airline disagrees with that assumption, it does the check sooner, if not immediately (though that could equally be done for other reasons ).