Airworthiness Directives; Boeing Model 757-200, -200CB, and -300 Series Airplanes

We are adopting a new airworthiness directive (AD) for certain Boeing Model 757-200, -200CB, and -300 series airplanes. This AD requires a detailed inspection for damage of the wire bundle of the right recirculation fan, and repair if necessary. This AD also requires re-routing the wire bundle of the right recirculation fan. This AD results from a report indicating that, during landing of a Model 757 airplane, an overheat warning and smoke occurred in the main cabin, and the right recirculation fan stopped operating. We are issuing this AD to prevent damage of the wiring bundle of the right recirculation fan. Such damage could result in a short circuit and possible fire in the mix bay or smoke in the main cabin.