AD FAA-2013-0541

The FAA withdraws a notice of proposed rulemaking (NPRM) that would supersede certain existing airworthiness directives (ADs) for The Boeing Company Model 757-200, -200PF, and -200CB series airplanes. The NPRM proposed to require a determination of the type of trailing edge wedges of the leading edge slats, repetitive inspections on certain trailing edge wedges for areas of skin-to-core disbonding, and corrective actions if necessary; and proposed to revise the applicability of the existing ADs to include additional airplanes. The NPRM also provided an optional terminating action for the repetitive inspections. Since we issued the NPRM, we have determined that the manufacturer's service information is inadequate to accomplish the actions necessary to address the unsafe condition. Once the manufacturer has issued new service information to address the unsafe condition, we may issue new rulemaking action that positively addresses the unsafe condition identified in the NPRM. Accordingly, the NPRM is withdrawn.