Cruisemaster Aux tank problems

Dan Cullman

New member
Because I haven't gone on any extended trips in the Cruisemaster in the last couple years, I haven't put any fuel in the aux tank...it remained empty. With fuel prices at relatively low point, I put in 10 gallons before a recent trip.
About 10 minutes into the trip, my daughter, in the back, complained of a burning sensation which continued until the end of the journey. After deplaning, I found her coat and seatback fuel soaked.
I had never smelled any fuel in flight.
I flew out the remaining fuel on the return trip. Further testing revealed pinholes in three locations just
above the welded seam just to the rear of the seatback bottom. There were several areas of corrosion with the pinholes in this area. Further investigation revealed that steel staples or clips used to upholster
the seatback had been in contact with the aluminum tank and caused the corrosion and leaks. I have attempted to remedy the problem in place. We will see how successful I have been, later.
I would caution all Cruisemasters and any Bellanca with a behind the seat aux tank to be wary of this situation.
Dan
 
Dan, that is pretty scary. Is that the 14 gallon tank? I have a 14 gallon Cruisemaster aux-tank that came out of a Cruisair. I will look at it tomorrow to see if it shows any sign of corrosion. It is rather amazing how the air circulation could not get the smell to the front of the cabin. It is interesting that the 14 gallon tank must be removed by cutting fabric, and pulling it out through the side, but the 20 gallon tank (narrower) can be removed through the rear seat area. I hope it is an easy fix. ____Grant.
 
Yes, this is the standard 14 gallon tank for the -2. I estimate it would have leaked down to the 3-4 gallon level. I scrubbed the corroded areas with a stainless brush, cleaned and alodined before several coats of fuel tank sealer was applied to the damaged area. I have since added a thick felt strip to the bottom of the seat back to prevent further contact.
Dan
 
I would convey that info to Alexandria.. and FAA... while not AD worthy.. it is worthy of some kind of
notice.

"there but for the grace of god..."

larry :shock:
 
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