Fuel Systems

Appendix A — Fuel System Standard

15.0 — Lab Examination No. 11
Fuel System Static Pressure Test cont'd

183.520(a) — Fuel tank vent system

(a) Each fuel tank must have a vent system that prevents pressure in the tank from exceeding 80% of the pressure marked on the tank label under section 183.514(b)(5).

15.6 Fuel Tank Vent Test

15.6.1 Remove the plug from the vent line and reconnect the vent line to the deck fitting.

15.6.2 Attempt to pressurize the system to 80% of the pressure marked on the tank label.

15.6.3 If the pressure reached 80% of the pressure marked on the tank label, the vent system shall be rejected.

15.6.4 Secure the system as required. Vent the test pressure to zero (0) psig. Remove all gauges and reconnect all lines and hoses disconnected for the test to the proper specification.

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