The 767-397 Kit Rib Flange – LH is a structural repair or installation kit used in Piper aircraft wing assemblies, specifically for the left-hand (LH) side. It includes flange components designed to reinforce or restore the structural integrity of a wing rib.

This kit is typically used during maintenance, repair, or restoration to replace damaged, worn, or corroded rib flange sections that attach the wing skin to the rib structure.

Its primary functions include:

Providing structural reinforcement to wing rib assemblies
Restoring proper attachment surfaces for wing skin panels
Maintaining alignment and load distribution within the wing structure

Rib flange kits like the 767-397 are essential for maintaining airworthiness and structural strength of aircraft wings, especially in aging or high-utilization general aviation aircraft.