What was found
CORROSION FOUND, AT RT FR 84 CROSSBEAM, DURING INSTALLATION OF RT FR 74-84 SEAT TRACK. CUT OUT AND INSTALLED REPAIR PARTS ON CROSSBEAM FR84 RT SIDE REF SRM 53-00-10/REPAIR 03 AND ETD2018-170-073191 PN 170-23401-421. AIRCRAFT REMAINS IN HEAVY CHECK BNA.