september2022 - 31

100LL OR UL94?
KNOW THE GRADE
The National Air Transportation Association
(NATA) recently added an Unleaded Avgas
Fact Sheet to its Misfueling Program
Resources.
Produced by NATA's General Aviation Fuel
Handling Subcommittee, the fact sheet
points out that as of August, Swift Fuels'
UL94 is the only grade of unleaded avgas
that's commercially produced and available
at some airports.
What is UL94 Unleaded Avgas?
Produced and sold solely by Swift Fuels
from its Indiana fuel facility since 2015,
UL94 is a 94+ Motor Octane aviation
gasoline without tetraethyllead that
meets the ASTM D7547 Unleaded Avgas
specification.
According to Swift Fuels' website, " UL94
has an identical density to 100LL, meaning
weight and balance calculations will not
change by using UL94. UL94 Unleaded
Avgas satisfies the minimum octane
requirements of over 125,000 aircraft (66
percent of the U.S. piston fleet) as a 'dropin
ready' unleaded avgas. It requires no
modifications and no hardware changes. "
To minimize refueling errors, Swift Fuels
says, " All piston aircraft should demonstrate
an FAA-approved fuel placard showing
allowed fuels. " The company also insists
on the use of FAA Form 337 and offers the
option to print an auto-populated form from
its website.
To determine which aircraft can use UL94,
interested parties can search Swift Fuels
online database.
To ensure that an aircraft requiring 100LL
is not misfueled with UL94, NATA advises
pilots should communicate with FBOs and
verify their fuel orders every time fueling
takes place. According to NATA, a properly
communicated fuel order (verbal or written)
includes:
* Aircraft registration (tail) number
* Type and grade of fuel (e.g. UL94 or
100LL) - Until recently, spark-ignition
piston misfueling concerns were primarily
limited to misfueling with Jet A. Now, if an
aircraft requires 100LL, requesting " avgas "
is no longer sufficient. All fuel orders must
specify the grade of fuel requested.
* Volume of fuel to be distributed into
each tank.
Once the above has been communicated
to FBO staff, NATA advises, " Verify the
information by having the order repeated
back to you. Additionally, verify your fuel
ticket/credit receipt for proper grade of fuel
and quantity before signing. "
Additional information can be found at
https://www.faa.gov/about/initiatives/avgas.
" It's an opportunity for you to communicate
with somebody else that's in
the aviation industry. You've got like
interests and common goals, " Lindberg
says. " Always have a discussion with
them because that discussion can start
all of the questions that are necessary
to ensure the proper fueling happens.
That directly ties into the fact that the
aviation industry is a team effort and
everyone has an important role to play.
We want to make sure that everyone is
equally informed and prepared so that
everybody appreciates the magnitude of
their responsibilities, line service personnel
absolutely included. "
Lastly, he reminds ground service
providers to never assume anything.
" You may have seen a certain type
of airplane or a certain type of fueling
truck, or whatever the case, maybe 100
or 100,000 different times. But that one
AviationPros.com/21278614
time you interact with a different type of
airplane, and you think you know exactly
what type of fuel it needs is probably the
time that an accident is going to happen, "
Lindberg warns. " So never assume that
you know the type of airplane or the type
of fuel an airplane needs. Always ask,
always get a conversation started with
the pilot. "
MORE ONLINE
For more information and related
resources, read this article online.
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September 2022 || AviationPros.com || 31
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september2022

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