Suction Test
A similar test was called up on the 737-200, much as described by Swedish Steve, but the fuel level had to be quite low, actual figure escapes me, so as to uncover the most of the in tank fuel tubing. The method will work on any aircraft and has been used with success to find holes & bad joints on the in tank fuel tubes.
Last edited by Terraplaneblues; 10th Jun 2008 at 08:21.
Reason: Typo