Airframe & Powerplant B737 DEACTIVATOR CHECK VALVE Used to deactivate pneumatic check valve (4663-8) during the cross bleed hookup to start aircraft engine. TAGS: 21 OEM PN:: PF80-012-500 TOMX PN:: N/A TOOL TAG: SPL-2462 Related posts Fuel tank access tableTERMOHIGROMETER LOGGERCF34-10E ENGINE STAND ADAPTER KITPISTOLA DE CALOR BOSCHInterior Panel GageLock Aleron Actuator B757Vapor Barrier Caps and Plugs…SLIDE SAFETY SIGNOVERSPILL COLLECTION KITWeighing Scale – 100KG