What was found
CO: 79201118 JOB 27920111 OP 157, 158, 159, AND 160.
DISCREPANCY: LH SIDE SEAT TRACKS CORRODED AT THE FOLLOWING F.S.: 364-409+17, 409+17-409+112, 529, AND 545.
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CORRECTIVE ACTION: REMOVED AND REPLACED CORRODED SECTIONS IAW BOMBARDEIR REO 601R-53-00-055 REV C DATED 2017-03-21.