Summary
This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Boeing Model 767-300 series airplanes. This proposal would require a general visual inspection for clearance between the corners of the A1 galley and the aft pressure bulkhead, and corrective actions, if necessary. This proposal would also require modification of the A1 galley. These actions are necessary to prevent interference of the A1 galley with the radial stiffener on the aft pressure bulkhead, which could result in fatigue crack propagation. Fatigue crack propagation could lead to possible rapid decompression of the airplane or to damage and/or interference with the airplane control systems that pass through the bulkhead and consequent loss of control of the airplane. This action is intended to address the identified unsafe condition.