FOR IMMEDIATE RELEASE
FAA Office of Public Affairs
May 7, 2001
Contact: Alison Duquette
Phone: 202-267-3462
FAA Issues Fuel Tank Safety Rule
WASHINGTON- The U.S. Department of Transportation's Federal
Aviation Administration (FAA) today issued a rule that requires
airplane manufacturers and operators to change how airplane fuel
tanks are designed, maintained and operated.
The FAA rule, the most comprehensive fuel tank safety initiative
ever put forward, includes a Special Federal Aviation Regulation
(SFAR) to minimize the potential for failures that could cause
ignition sources in fuel tanks on new and existing airplanes. It also
includes a regulation that, for the first time, mandates airplane
design changes to minimize the flammability of fuel tanks on new
airplanes.
"Although aviation remains an incredibly safe way to travel, our
extensive research and evaluation of past design philosophies and
certification practices show that it's time for a new approach to
fuel tank safety," said FAA Administrator Jane F. Garvey. "The
FAA's rule is an aggressive plan that will certainly raise the bar
in
aviation safety."
Since the tragic Trans World Airlines (TWA) 800 accident in July
1996, the FAA has focused on the three fundamental areas that
keep airplane fuel tanks safe: the prevention of ignition sources,
fuel flammability, and fuel tank inerting. Based on recent FAA and
industry research and tests, the Aviation Rulemaking Advisory
Committee (ARAC) continues to evaluate fuel tank inerting and is
expected to make recommendations to the agency in July.
The SFAR portion of the rule affects 6,971 transport airplanes with
30 or more seats manufactured by Airbus, Aerospatiale (ATR),
Boeing, British Aerospace, Bombardier, De Havilland, Dornier,
Embraer, Fokker, Lockheed, Saab and Shorts. The SFAR amends
current FAA rules for both existing and new model airplanes.
For existing airplanes:
·Manufacturers must conduct a one-time design review of the
fuel
tank system for each transport airplane model in the current fleet
to ensure that failures could not create ignition sources within the
fuel tank.
·Manufacturers must then design specific programs for the
maintenance and inspection of the tanks to ensure the continued
safety of fuel tank systems.
Operational changes for existing airplanes:
·Based on the information provided by the manufacturer under
the
SFAR, operators must then develop and implement a
FAA-approved fuel tank maintenance and inspection program for
their airplanes.
For new airplane types:
·Manufacturers must further minimize the existence of ignition
sources in fuel tanks. Future transport category airplanes will be
designed to better address potential failures in the fuel tank
system that could result in an ignition source.
·Manufacturers must develop maintenance and inspection
programs to ensure fuel tank safety.
·Some airplane types are designed with heat sources adjacent
to
the fuel tank, which can heat the fuel and increase the formation
of flammable vapors in the tank. The rule requires manufacturers
to reduce the time fuel tanks operate with flammable vapors in the
tank by designing fuel tank systems with a means to minimize the
development of flammable vapors in the fuel tank or a means to
prevent catastrophic damage in the unlikely event ignition occurs.
Manufacturers have 18 months from June 6, the effective date of
the rule, to conduct the safety reviews and develop maintenance
and inspection programs required by the SFAR. Operators have
36 months from June 6 to incorporate an FAA-approved
maintenance and inspection program into their operating
procedures. Together, these initiatives are estimated to cost the
industry $165 million over 10 years. Specifically, the fuel tank
review will cost $38 million; changes to maintenance and
inspection programs will cost $92 million; lost net revenue will cost
$24 million; and additional recordkeeping requirements will cost $10
million.
The FAA has issued or proposed nearly 40 airworthiness directives
(ADs) on fuel tank safety. These actions were taken from lessons
learned in the TWA 800 accident investigation or through targeted
FAA inspections and service history reviews. The agency may
issue additional ADs based on the new data gathered from the
design review of existing aircraft mandated by the SFAR.
The SFAR is available on the FAA's web site at
www.faa.gov/avr/arm/nprm.htm. Three fact sheets, dated July
2000, that address fuel tank inerting, flammability, research, and
ADs are also available on the FAA's web site at
www.faa.gov/newsroom.htm.
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An electronic version of this news release is available via the
World Wide Web at: http://www.faa.gov/apa/pr/index.cfm
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