THE NEW PIPER AIRCRAFT, INC.
PA-32-301FT / 301XTC
MAINTENANCE MANUAL
PAGE 10
Jun 1/03
3I24
35-10-00
C. Leak Tests
Solutions recommended for leak testing are Leak-Tec Formula #16-OX and is available from Scott
Aviation. Refer to the List of Consumable Materials for consumer information.
(1) Remove the royalite covers in the baggage compartment and, with oxygen system turned off,
disconnect the low pressure supply line and connect it to a regulated cylinder charged with dry
nitrogen.
NOTE
: Whenever a leak check is performed, all fitting connections as well as other
questionable areas, should be inspected.
(2) Apply the leak detector solution to the test surface and watch for indication of leakage.
(3) Large leaks will produce bubbles immediately, but small leaks will form a white foam in 5 to 60
seconds.
(4) With outlets vacated of masks, connect a test pressure gauge to the copilot's outlet as
described in Inspections, above. See also Figure 3.
(5) Adjust the regulator on the dry nitrogen cylinder for 100 psi and check for leakage at the
outlets.
(6) Correct any leaks and wipe off excess leak detector solution.
(7) Close the valve on the nitrogen gas tank and insert a Scott plug-in to relieve system pressure.
(8) Disconnect test gauge, plug-in, and nitrogen tank.
(9) If the oxygen cylinder is not to be hooked up or installed immediately, cap and cover the
exposed fittings with new clean plastic bags. Temporarily support lines as needed to prevent
damage. Make sure caps and coverings are as clean as possible.
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