As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEAT TRACK AT STA. 1640 LBL 24.75 HAS THE SCALLOPS MILLED OUT 6" IN LENGTH AND WILL INTERFERE WITH THE INSTALLATION OF THE HANDLING SYSTEM. FABRICATED SEAT TRACK PER DRAWING 146N5130 MAT. I.D. BAC1520-792 BATCH 0001511987. REMOVED AND REPLACED SEAT TRACK IAW SRM 51-40-02.