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A warning for those who have Aeroquip 303 hose in their fuel systems.  Two
of us in the local EAA chapter have had failures of this hose in the fuel
system after about 5 years exposure to fuel.  They tout it for fuel systems
but both 100LL and autogas destroy the hose with prolonged exposure.  The
hose fails by havng the inner liner turn to mush and fail under the outer
shell of the Aeroquip 491 fittings. The hose weeps and then loses the
structuiral integrety of the end connection.  Both of us found the problem
at annual condition inspection but we were both close to an in-flight major
problem.

I strongly advise anyone with these hoses to replace them immediately and
check the fuel system down stream of the hoses for trash and goo.

Ross W. Colebrook N7828

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Please send your photos and drawings to marvkaye@olsusa.com.
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