What was found
DURING HEAVY CHECK, BARREL NUT FITTING AT FRAME 84 CROSSBEAM AND RT SEAT TRACK BEAM IS CORRODED. MAINTENANCE R & R BARREL NUT FITTING AT FRAME 84 CROSSBEAM AND RT SEAT TRACK BEAM IAW SRM 51-23-04, 51-41-01, 51-23-06. PN 170-92859-001, BARREL NUT.