What was found
HUM ON LINE AND AUDIO CUTS OUT WHEN POWER SUPPLY IS DECREASED BELOW +280. FOUND THE INPUT AND OUTPUT OF U2 WAS WIRED WRONG. REWIRED U2 CORRECTLY AND UNIT MEETS MANUFACTURERS SPECS. REPAIRED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
HUM ON LINE AND AUDIO CUTS OUT WHEN POWER SUPPLY IS DECREASED BELOW +280. FOUND THE INPUT AND OUTPUT OF U2 WAS WIRED WRONG. REWIRED U2 CORRECTLY AND UNIT MEETS MANUFACTURERS SPECS. REPAIRED.