Interesting point! I think the original intent there was lead-acid
starter batteries, but it does indeed just say "batteries".
And I should correct my statement to say that while the owner/operator
can replace the battery (hell, he can replace the entire engine), he
can't make the logbook entry for return to service.
My reasoning goes like this:
The preventive maintenance section deals in particular with either
easily replaceable parts, or SPECIFIC examples of life limited parts
that the owner/operator can replace or repair. Given that the ELT
battery is a life limited part (like an air or oil filter), to what
extent is the owner allowed to dismantle an object to effect the
replacement? Can he open a GPS to replace a memory back-up battery?
If not, why not? It's a battery after all. I think the answer lies in
what must be done after the replacement to declare that the item is
airworthy, and just flipping the switch on the ELT and listening for a
few sweeps doesn't qualify (IMHO). The all important g-switch must also
be exercised (and probably the output power too), and neither of these
falls under the purview of the owner/operator.
Just my view; as always I'm looking forward to seeing reasons why I may
be wrong!

Rip
Navion 5186K

Ron Natalie wrote:
"rip" wrote in message . com...

Nope. The list of things an owner/operator is allowed to do is very
specific. Replacing, testing, or logging the replacement or testing of
an ELT battery is not on the list. (Appendix A to Part 43 -- Major
Alterations, Major Repairs, and Preventive Maintenance).


Item 24 on 43xA.vc is "Replacing and servicing batteries."