What was found
RIGHT PACK AFT END ISOLATION AIR SUPPLY VALVE MAKES A LOUD METALIC NOISE. REMOVED AND REPLACED THE RT PACK ISOLATION AIR SUPPLY VALVE IAW AMM 36-11-04-404-013. OPS CHECKED GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
RIGHT PACK AFT END ISOLATION AIR SUPPLY VALVE MAKES A LOUD METALIC NOISE. REMOVED AND REPLACED THE RT PACK ISOLATION AIR SUPPLY VALVE IAW AMM 36-11-04-404-013. OPS CHECKED GOOD.