NOTE: Fuel will usually come into view again immediately
____ after you wipe the area dry and can run or drip from the surface.
F. Find External Leaks (with Talcum Powder) and Leak Type
S 286-002
(1) Find the exact location of the leak on the airplane skin (Fig. 601).
NOTE: If the tank is defueled when you start this procedure,
____ refuel the tank and continue this procedure. It is also possible to transfer fuel into the tank with the leak to get more data about the external leak location. If it is not possible to refuel the tank, refer to the procedure: Internal Pressure and Bubble Procedure, in the Task: Alternative Procedures for Fuel Tank Leak Detection.
(a) Find the area of the skin that is wet with the fuel.
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FRONT
SPAR
LEGEND
TOP VIEW
Integral Fuel Tank Figure 601
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HEAVY SEEP RUNNING LEAK
Fuel Leak Evaluation
Figure 602 (Sheet 1)
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No repair procedure is necessary; examine the fuel leak frequently to make sure it does not get larger.
It is not necessary to repair the fuel leak immediately. Examine the fuel leak frequently to make sure it does not get larger. Make the necessary repairs at the next applicable scheduled airplane maintenance.
Repair the fuel leak immediately to a minimum of
or
classification.
Repair the fuel leak immediately. No fuel leakage is permitted.
Do an inspection of the dry bay drain holes after each flight. If no fuel drops are seen 15 minutes after you wipe away the fuel, the airplane can be released for the subsequent flight. If fuel drops are seen 15 minutes after you wipe away the fuel, repair the leak immediately. (The leak is at least a seep).
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