Scooper wrote:You can move an SLSA issued a special airworthiness certificate under §21.190 to Experimental operating Light-Sport under §21.191(i)(3), but if major alterations such as an engine and/or propeller change are made, I believe Phase 1 testing must be repeated.
You would be correct Stan, many E-LSA modifications fall under the "minor" modifications category, with no additional Phase I flight testing required. And with "minor" modification the aircraft remains in the E-LSA Phase II Operating Limitations just as it was when originally converted to E-LSA.
Now a "major" modification is a different story, like making a RV-12 a biplane.
Depending on the scope of the modification made to your E-LSA aircraft, if it falls into the "major" modification category then re-entry to Phase I flight testing may be required by the FAA.