04 The Leak

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Fuel Tank Replacement

1. 01 Looking ... 2. 02 The New ... 3. 03 Removal ... 4. 04 The Leak 5. 05 Fitting ... 6. 06... 7. 07 Plumbing... ... 10. 10 Sight...

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04 The Leak

Once the top was off the tank the presence of the leak was obvious. You could also see that the leak initially was slow enough that the fuel evaporated before enough could accumulate to leak out of the lower inspection opening. The bounce of the tank full of fuel finally opened the leak to the point where fuel volume was enough to leak out of the aircraft.

Date: 07/14/2014

Owner: rlborger

Size: 5 items

	IMG_6972 Standing on the port side looking down into the tank. The leak is that blue line with the lighter blue background. Date: 10/18/2013 Views: 7567
	IMG_6973 In this view fore is down, aft is up, port to the right and starboard to the left. Date: 10/18/2013 Views: 7133
	IMG_6973_em_sa Here I have annotated the important elements. The red outlines the fiberglass support bonded to the bottom of the tank. Blue arrow points to the blue crack. The crack formed exactly as a stress analysis says it should, at 45º to the corner of that supp Date: 10/18/2013 Views: 7183
	IMG_6975 The crack as viewed from the underside. it is about 1 5/8 in (4 cm) long and 1/32 in (1 mm) wide. Notice the blue staining on the underside surface. Date: 10/19/2013 Views: 8963
	IMG_6978 The crack as viewed from the top side. Date: 10/19/2013 Views: 7533