Summary
This action withdraws a notice of proposed rulemaking (NPRM) that proposed a new airworthiness directive (AD), applicable to certain Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135 and -145 series airplanes. That action would have required replacement of the air turbine starters (ATSs) with modified ATSs. Since the issuance of the NPRM, we have reviewed the requirements of the proposed AD and determined that the same unsafe condition is addressed in another AD. Accordingly, this proposed AD is withdrawn.