Federal Aviation Administration, DOT.
Proposed rule; withdrawal.
This action withdraws a notice of proposed rulemaking (NPRM) that proposed a new airworthiness directive (AD), applicable to certain Boeing Model 777 series airplanes equipped with Pratt & Whitney engines. That action would have required replacement of the integrated drive generator (IDG) and the backup generator with a new IDG and a new backup generator. Since the issuance of the NPRM, the Federal Aviation Administration (FAA) has received new data that indicate that all affected airplanes worldwide have the proper parts installed and all spares are accounted for, and that the identified unsafe condition (loss of electrical power) cannot occur for the reasons specified by the NPRM. Accordingly, the proposed rule is withdrawn.
Tony Castillos, Aerospace Engineer, Systems and Equipment Branch, ANM–130S, FAA, Seattle Aircraft Certification Office; 1601 Lind Avenue, SW., Renton, Washington 98055–4056; telephone (425) 227–2864; fax (425) 227–1181.
A proposal to amend part 39 of the Federal Aviation Regulations (14 CFR part 39) to add a new airworthiness directive (AD), applicable to certain Boeing Model 777 series airplanes equipped with Pratt & Whitney engines, was published in the
Since the issuance of that NPRM, the FAA has received and confirmed reports indicating that all affected airplanes worldwide have the proper parts installed and that all spares are accounted for.
Upon further consideration, the FAA has determined that the unsafe condition identified in the NPRM (loss of electrical power) can no longer occur because of the reasons given in the NPRM. Accordingly, the proposed rule is hereby withdrawn.
Withdrawal of this NPRM constitutes only such action, and does not preclude the agency from issuing another action in the future, nor does it commit the agency to any course of action in the future.
Since this action only withdraws a notice of proposed rulemaking, it is neither a proposed nor a final rule and therefore is not covered under Executive
Air transportation, Aircraft, Aviation safety, Safety.
Accordingly, the notice of proposed rulemaking, Docket 97–NM–78–AD, published in the