Summary
This action withdraws a notice of proposed rulemaking (NPRM) that proposed a new airworthiness directive (AD), applicable to certain Dornier Model 328-100 series airplanes. That action would have required installation of two reinforcing brackets on the keel beam in the lower shell of the main landing gear bay. Since the issuance of the NPRM, the Federal Aviation Administration (FAA) has received new data indicating that the unsafe condition addressed in the NPRM does not exist. Accordingly, the proposed rule is withdrawn.