As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT LAV PANEL IS INADEQUATE. FBO MECHANIC STATED THAT PANEL APPEARS TO BE INSTALLED UPSIDE DOWN, WHICH WOULD CAUSE BUTTON TO BE IN WRONG POSITION. PANEL WAS REPLACED WITH THE CORRECT PANEL. NOW THE FLUSH TOUCH BUTTON IS VISIBLE AT THE UPPER LT CORNER.