What was found
AIR TURNBACK, AIRCRAFT WOULD NOT PRESSURIZE. REMOVED AND REPLACED PNEU BLEED AIR DUCT BOOT AT KEELBEAM AND THREE BODY DRAINS, TIGHTENED CLAMPS AND REMOVED AND REPLACED WATER SEPARATOR SEALS PER MM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIR TURNBACK, AIRCRAFT WOULD NOT PRESSURIZE. REMOVED AND REPLACED PNEU BLEED AIR DUCT BOOT AT KEELBEAM AND THREE BODY DRAINS, TIGHTENED CLAMPS AND REMOVED AND REPLACED WATER SEPARATOR SEALS PER MM.