As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHL - FLT 1908 - DURING CLIMB-OUT FROM PHL, CREW NOTICED AN AIR LEAK FROM THE FORWARD MAIN ENTRY DOOR. FLIGHT RETURNED TO FIELD AT PHL AND LANDED WITHOUT FURTHER INCIDENT. NO EMERGENCY WAS DECLARED. MAINTENANCE CLEANED AND LUBED THE FORWARD MAIN ENTRY DOOR ROLLERS. OPERATIONAL CHECK AND LEAK CHECK GOOD. (M)