As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ATC REPORT ADSB OUT TRANSMISSION INOPERATIVE DURING FLIGHT. TESTING REVEALED SURVEILLANCE INTEGRITY LEVEL OF 1 BEING TRANSMITTED. FOUND INSTALLATION NOT STRAPPED TO TRANSMIT SIL. CONTACTED ORIGINAL INSTALLER AND REQUESTED THEY AMEND INSTALLATION DWG IAW INSTALLATION MANUAL TO TRANSMIT SIL. TRANSPONDERS RESTRAPPED IAW AMENDED DWG AND SIL NOW TRANSMITTING SIL 2. SATISFACTORY IAW ATC REQUIREMENTS.