21-26 Avionics Equipment Ventilation

21-26-01A Avionics Blower Fan (VENT AVNCS SYS FAULT Alert not displayed)
21-26-09C Avionics Ventilation Filter (Avionics ventilation system checked before each flight)
21-26-09B Avionics Ventilation Filter (Air conditioning inlet valve checked open before each flight)
21-26-09A Avionics Ventilation Filter (VENT AVNCS SYS FAULT Alert not displayed)
21-26-08A Avionics Air Conditioning Inlet Valve
21-26-06A Avionics Skin Exchanger Isolation Valve
21-26-05B Avionics Skin Air Inlet Valve (Air conditioning inlet valve secured in the open position)
21-26-05A Avionics Skin Air Inlet Valve (Air conditioning inlet valve open on the ground)
21-26-04A Avionics Skin Air Outlet Valve
21-26-03A Avionics Skin Exchanger Inlet Bypass Valve
21-26-02C Avionics Extract Fan (Avionics ventilation system checked before each flight)
21-26-02B Avionics Extract Fan (Air conditioning inlet valve checked open before each flight)
21-26-02A Avionics Extract Fan (VENT AVNCS SYS FAULT Alert not displayed)
21-26-01C Avionics Blower Fan (Avionics ventilation system checked before each flight)
21-26-01B Avionics Blower Fan (Air conditioning inlet valve checked open before each flight)
21-26-10A Avionics Equipment Ventilation Computer (AEVC)