Airworthiness Directives; Boeing Model 727 Series Airplanes Modified in Accordance With Supplemental Type Certificate SA1444SO, SA1509SO, SA1543SO, or SA1896SO

This document corrects an error that appeared in airworthiness directive (AD) 2002-16-22 (final rule, correction) that was published in the Federal Register on August 16, 2004 (69 FR 50299). The error resulted in an incorrect reference to certain supplemental type certificates. This AD is applicable to certain Boeing Model 727 series airplanes that have been converted from a passenger- to a cargo- carrying ("freighter") configuration. This AD requires, among other actions, installation of a fail-safe hinge, redesigned main deck cargo door warning and power control systems, and 9g crash barrier.