Stage: Final Publications

Regulatory Agency Final Publications

FAA AC 25.954-1 Transport Airplane Fuel System Lightning Protection

This advisory circular (AC) provides guidance for showing compliance with the airworthiness
regulations for transport category airplanes regarding lightning protection of fuel tanks and
systems. These lightning protection requirements apply to normal conditions and possible
failures of fuel tank structure and systems that could lead to fuel tank explosions. This AC also
provides guidance for developing critical design configuration control limitations (CDCCLs) and
Airworthiness Limitations required to be included in the Instructions for Continued
Airworthiness (ICA) related to lightning protection features of the airplane fuel system.
If you have suggestions for improving this AC, you may use the Advisory Circular Feedback
form at the end of this AC.

FAA AC25.981-1D_Fuel Tank Ignition Source Prevention Guidelines

This advisory circular (AC) provides guidance for showing compliance with title 14, Code of
Federal Regulations (14 CFR) 25.981, Fuel tank explosion prevention, which provides the
certification requirements for the prevention of ignition sources, other than lightning, within the
fuel tanks of transport category airplanes. AC 25.954-1, Transport Airplane Fuel System
Lightning Protection, now addresses ignition sources due to lightning. The guidance in this AC
is applicable to transport category airplanes for which a new, amended, or supplemental type
certificate is requested.
Revisions to this AC include: (1) removing the lightning-related aspects because they are now in
AC 25.954-1, developed specifically to address compliance with § 25.954, Fuel system lightning
protection; and (2) describing means of compliance for prevention of failure conditions created
from ignition sources, other than lightning, using circuit protective devices—such as an arc fault
circuit breaker or ground fault interrupter—to provide fail-safe features.
If you have any suggestions for improving this AC, you may the Advisory Circular Feedback
form at the end of this AC.

FAA AC_120-48A Communication and Coordination Between Flightcrew Members and Flight Attendants

This revision provides guidance to operators when developing, implementing, and revising standard operating procedures (SOP) and training programs regarding crew communication and coordination. We intend this advisory circular (AC) for those operators governed by Title 14 of the Code of Federal Regulations (14 CFR) and 14 CFR part 119 certificate holders conducting operations that include both flight crewmembers and flight attendants. The AC provides research and discussion topics, followed by communication and coordination issues between crewmember findings in National Transportation Safety Board (NTSB) reports.

DOT Docket NO. DOT-OST-2007-27057_2018-18345; Increasing Charter Air Transportation Options

AGENCY: Office of the Secretary (OST), Department of Transportation (DOT). ACTION: Final rule.
SUMMARY: The Department of Transportation (DOT or Department) is issuing a final rule to facilitate innovation and growth in the air charter
industry while strengthening the legal protections provided to consumers of charter air transportation. First, this rule allows ‘‘air charter brokers’’ as principals or bona fide agents to provide single entity charter air transportation of passengers. Second, it requires air charter brokers to make certain disclosures including those responsive to a National Transportation Safety Board (NTSB) recommendation and to make other disclosures upon request. Third, it enumerates certain practices by air charter brokers as prohibited unfair or deceptive practices or unfair methods of competition. Fourth, this rule requires air taxis and commuter air carriers that sell charter air transportation to make certain disclosures including those responsive to an NTSB recommendation and other disclosures upon request. Fifth, it enumerates certain practices by an air taxi or commuter air carrier as prohibited unfair or deceptive practices or unfair methods of competition. At the same time, the Department is not adopting a proposal to codify exemption authority allowing indirect air carriers to engage in the sale of air transportation related to air ambulance services. Nor is it adopting a proposal to codify that certain air transportation
services performed under contract with the Federal Government are in common carriage.