TBM 700/TBM 850
Flight Crew Instrument; Flight Crew Private
Flight Crew Last 90 Days 30; Flight Crew Total 1200; Flight Crew Type 130
Human-Machine Interface
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Overcame Equipment Problem
Aircraft
While leveling off at final altitude; I switched the bleed switch from Auto Bleed to Max Diff. The cabin then depressurized. I descended the aircraft to a breathable altitude and resumed flight at 6;000 ft.
TBM-900 pilot reported changing the bleed air switch from auto to Max Diff. This caused a depressurization and the pilot had to immediately descend to 8;000 ft.