Maintenance Issues

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What are some of the problems out there?

AD 78-05-06	All Goodyear BTC-39 fuel cells condemned at removal.
AD 84-10-01R1	Cessna 180 to 210 filler caps/ wrinkles/ quick drains • Our valve STC
AD 90-21-08	Cessna 180 - add a left hand vent on early models
AD 90-23-18R1	Piper PA-23 -Wedge kits field installed in inboard aft corner of fuel cells trap more water than original problem. Should be removed!

wedge

Beech MSB 2109

Replace deteriorating brown safety foam with Type IV blue safety foam on some Barons and Bonanzas equipped with baffle boxes

baffle box safety foam

Venting

Bent vents or lines restricted by ice or insect nests cause a vacuum that unsnaps cell causing uneven flow & false fuel quantity indications

vent tube vent

New fuels

Large qtys of Toluene, oxygenates, and other chemicals used to boost octane in Autogas & 100LL degrade rubber parts like o-rings & hoses

hose