Reattaching the tail feathers following the horizontal stabilizer fix. Attached and torqued the bolts mounting the hstab. Positioned and cleco'd the elevator to the hstab. Positioned the fin and made some additional filing or clearance. Removed the fin. Riveted the elevator to the Hstab. Re-connected elevator cables and cotter pins. Positioned the fin again and marked a horizontal reference line for N-number positioning.