As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 2925 - EWR - FLIGHT CREW REPORTED A LOUD POP FOLLOWED BY A VIBRATION FROM THE NOSE OF THE AIRCRAFT DURING CLIMBING. CREW PERFORMED AIR RETURN AND LANDED AIRCRAFT UNEVENTFULLY. EWR MX FOUND GPU DOOR OPEN AND LATCH BROKEN. MX REMOVED AND REPLACED GPU DOOR COVER ASSEMBLY AND PERFORMED FUNCTIONAL CHECK SUCCESSFULLY. AIRCRAFT WAS APPROVED TO RETURN TO SERVICE.