DOC AIRBUS | MMEL OPS PROC21-63 Cockpit and Cabin Temperature Control
- 21-63-01A Zone Controller Channel (Primary channel inoperative)
- 21-63-01C Zone Controller Channel (Both channels inoperative)
- 21-63-02A Cockpit and Cabin Trim Air Valve (Affected valve secured/checked in the closed position)
- 21-63-02B Cockpit and Cabin Trim Air Valve (Hot air pressure regulating valve checked closed/operative)
- 21-63-03A Hot Air Pressure Regulating Valve (Hot air pressure valve checked closed)
- 21-63-03B Hot Air Pressure Regulating Valve (Trim air valve checked closed)
- 21-63-03C Hot Air Pressure Regulating Valve (Affected valve secured in the closed position)
- 21-63-05A Cockpit Heater