What was found
FLT#907, BOS-STT. 'FA3 ABD FA4 REPORTED REPEAT ODOR (BURNT RUBBER) WHILE ENROUTE FROM STT. THE ODOR WAS ONLY PRESENT IN THE BACK HALF OF THE A/C; PERFORMED TASK 24-00-00-810-823A. NO ELECT FAULT NOTED IDENTIFIED AS CLASS 10 TYPE AMBIENT ODOR AS PRECAUT T/S PERFORMED LEVEL A DECONT R/R HEPA FILTERS. C/W INFORMATION NOTICE 2017-TO15 SECTION B2 IDENTIFIED ODOR AS TYPE 10 AMBIENT ODOR DECONT LEVEL A ACCOMPLISHED ENGINE RUN PERFORMED NO ODOR PRESENT.'