TM 10-5430-242-12&P 0007 00 Change 1 0007 00-4 TROUBLESHOOTING PROCEDURE TANK DRAIN HOSE ASSEMBLY SYMPTOM Drain hose assembly leaks. MALFUNCTION Check for leaks or breaks in the drain hose. CORRECTIVE ACTION If hose is damaged, notify Unit Maintenance. TROUBLESHOOTING PROCEDURE VENT FITTING ASSEMBLY SYMPTOM Vent and pipe assembly leak. MALFUNCTION Check gasket between quick-disconnect coupling and flange adapter. CORRECTIVE ACTION Replace coupling gasket.  See WP 0013 00. Vent and pipe assembly continue to leak. CORRECTIVE ACTION If still leaking, notify Unit Maintenance. TROUBLESHOOTING PROCEDURE RELIEF CAP AND FLAME ARRESTOR SYMPTOM Relief cap does not operate freely. MALFUNCTION Check the relief cap for leakage, cleanliness, and freedom of action. CORRECTIVE ACTION Notify Unit Maintenance if dirty, leaking or cap is binding. TROUBLESHOOTING PROCEDURE FILLER DISCHARGE ASSEMBLY