What was found
LOUD HUM WITH VIBRATION IN AFT GALLEY AREA. CONNECTOR REMOVED AND SECURED FROM FAN 35HN. REMOVED AND REPLACED VENTILATION EXTRACTION FAN PER MM. FOUND OLD VENT FAN CLOGGED. CLEANED INLET AND EXHAUST DUCT. OPS CHECKS NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LOUD HUM WITH VIBRATION IN AFT GALLEY AREA. CONNECTOR REMOVED AND SECURED FROM FAN 35HN. REMOVED AND REPLACED VENTILATION EXTRACTION FAN PER MM. FOUND OLD VENT FAN CLOGGED. CLEANED INLET AND EXHAUST DUCT. OPS CHECKS NORMAL.