What was found
FA`S IN AFT GALLEY REPORTED STRONG PLASTIC OR ELECTRICAL ODOR. WENT AWAY. CONFIRMED ELICTRICAL ODOR IN CABIN. FLT CREW STATED: APPROX 2.5 HRS INTO FLT AT AIRSPEED .86 MACH & AN ALTITUDE OF 37000 FT. EXPERIENCED A STRONG BURNING ODOR & HAZE BETWEEN DOORS 3 & 4. ODOR SPREAD THROUGHOUT CABIN, TURNED OFF IFE & POWER TO AFT GALLEY. ODOR WAS STILL PRESENT UPON ARRIVAL. PERFORMED SMOKE / FUMES IN CABIN, FAULT ISOLATION IAW FIM 21-20-F5-72A-421A-A. AFTER HAVING CACS & RECIRC FANS OFF FOR ABOUT 20 MINS, COULD NOT DUPLICATE ODOR OR HAZE, SUSPECTS REPAIR FROM STEP 5 OF EC/RA 2125-01204 AS SOURCE OF ODOR. THE RECIRC FAN HAD BEEN REPLACED, & DUE TO HISTORY, A COMPLETE INSPECTION OF THE IFE, GALLEY, AIR CONDITIONING SYS IS REQUESTED AS NEXT STEP. REF. FIM, 21-20-F5-72A-421A. SMOKE OR FUMES IN CABIN - FAULT ISOLATION. REF FIM B787-A-21-20-F5-72A-421A-A RAN APU, PACKS, GALLEYS, &HAD IFE SYS TO AIR MODE FOR SEVERAL HOURS. COULD NOT DUPLICATE SMOKEY CONDITION. OPENED GALLEYS CEILING PANELS AMM B787-A-21-53-00-01A-340A-A FOR INSPECTION . VERIFIED NO EVIDENCE OF BURNING / OVERHEAT ODOR IN BULK CARGO AREA & IN AFT GALLEY VICINITY .