Summary
The FAA withdraws a notice of proposed rulemaking (NPRM) that proposed a new airworthiness directive (AD) for certain EMBRAER Model ERJ 170 airplanes. The proposed AD would have required installing updated software revisions and, as applicable, doing concurrent actions. Since the proposed AD was issued, we have received a report that all affected airplanes have already been modified as described in the proposed AD. Accordingly, the proposed AD is withdrawn.