What was found
AFTER TAKEOFF FUEL LEAK OUT OF RT WING OTBD LOWER SIDE LOST 800 LBS FUEL IN ABOUT 4 MINUTES. REMOVED RT WING TANK ACCESS PANEL G21TB-17. AFTER ACCESSING TANK FOUND BOTH FORWARD AND AFT VENT FLOATS STUCK IN THE OPEN POSITION. REMOVED FORWARD AND AFT VENT FLOAT/NON-RELIEVING VALVES P/N 16F123 NSN. INSTALLED A NEW FORWARD VENT FLOAT P/N 12F123/NSN. INSTALLED A NEW AFT VENT FLOAT P/N 16F123. FORWARD AND AFT VENT FLOATS INSTALLED WITH NEW GASKETS 1 EA. GA215-160 AND NEW WASHERS 4EA NAS1149D0316H SECURED WITH PREVIOUSLY REMOVED SERVICEABLE BOLTS 4 EA. INSTALLED RT WING TANK ACCESS DNL 621TB-17. LEAK CHECK GOOD. ALL WORK DONE IAW M/M 28-15-01, 28-10-00, AND 57-01-01. UPDATED CMP CODE 281510 F. FWD VENT FLOAT/NON-RELIEFING VALVE. AND 281512 R. AFT VENT FLOAT NON-RELIEFING VALVE.