Replace & sign-off the battery part I get. Does my "Repairman Certificate" allow me to sign off the functional check? Does the 'boiler plate' Appendix D/Part 43 cover the ELT requirement? Do we experimental types have an ELT requirement? I assumed .... but .... I've been wrong before.
Follow on discussion item. My ELT is 10yrs old (121.5/243.0) type. Any one have thoughts about replacing it w/the 406? If so which brand name?