As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MODERATE SOUNDING BANG AT CRUISE ALT 33,000 FT APPEARED TO BE AROUND FUSELAGE AREA BELOW CAPT. SEAT. NO ABNORMAL ENG/HYD/AIR INDICATIONS. A/C INSPECTED FOR POSSIBLE BIRD STRIKE. THIS WAS NOT A BIRD STRIKE NR 1 RAM AIR SCOOP DOOR CAME OFF IN FLIGHT DOOR ON ORDER. FACT REMOVED AND REPLACED NR 2 RAM AIR INLET DOOR ASSY IAW AMM 21-55-01-41 AND 21-62-14-5 1. OP CHECKS AND LEAK CHECKS GOOD.