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If it were a dangerous condition it probably would be an AD by now. Most times a SB is for the manufacture to extort money or to cover their own butts for screwing up. The fact is, if your electric boost pump fails the airplane will keep flying...the only reason it is installed is for back-up of your engine driven fuel pump. I know, you use it for engine start; but it can start without it too, using the primers.
The electric pump is designed to leak fuel overboard, out of that little vent if the diaphragm seal leaks. My view is fly it to failure...it's a Skymaster after all...if it's not broken then don't fix it. But! If your pump is leaking fuel (mine did) then by all means replace or repair the pump...or if it fails then replace it right away too. Besides your pump has lasted this long...so it probably isn't the type discussed in the SB...or the SB was an extortion attempt.
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11-18-08, 11:28 PM
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