As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT RAM DOOR FULL OPEN LIGHT ILLUMINATED ENROUTE & THROUGHOUT CRUISE FLIGHT AT 370. GROUNDED - YES. PER FIM 21-51 TASK 803 CONDUCTED BITE TEST OF LEFT PACK SYSTEM. NO FAULTS DETECTED. CANNOT DUPLICATE DISCREPANCY ON GROUND. AIRCRAFT OK FOR SERVICE.