"James M. Knox" wrote in message ...

The question is, can the A&P likewise go down to Home Depot to get his
tubes of sealant? Or is the A&P constrained to use the manufacturer's
instructions on the "proper" method to seal/reseal the windshield? I
know, for example, that the Piper manual calls out a particular sealant.
Does he have to use that (or approved equivalent)?

If using other than the recommended sealant is not an approved repair for
the mechanic, it's not any more legal for you to do it. So both you and the
A&P have to ask yourself, is this an acceptable method? Not all manufacturers
bulletins are law (for the non-commercial operator).