AIRCRAFT DEPARTED KTIX EMPTY HEADING TO KOPF. ON TAKEOFF/CLIMB, CAPTAIN NOTICED CABIN AIR SWITCH WAS OFF, CAPTAIN THEN TURNED IT ON. A FEW MOMENTS LATER CREW WERE GETTING HOT AIR & SMOKY RESIDUE IN COCKPIT AREA. THEY ELECTED TO RETURN TO KTIX, DECLARE AN EMERGENCY. LANDED SAFELY BACK AT TIX. MAINT INSPECTED ACFT & DID NOT SEE ANY OBVIOUS ISSUES WITH PRESSURIZATION SYS. NEXT MORNING MAINT RAN ENGS & ABLE TO DUPLICATE HOT AIR IN CABIN/COCKPIT AREA. COMPLETING TROUBLESHOOTING PROCEDURES IAW MM, LT ENG BLEED AIR MIXING VALVE WAS FOUND TO BE DEFECTIVE & REPLACED. EMERGENCY PRESSURIZATION VALVES REPLACED FOR PRECAUTIONARY PURPOSES. ENGS WERE RUN UP & FUNCTIONAL CHKS COMPLETED, NO DISCREPANCIES NOTED. A TEST FLT WILL BE COMPLETED BEFORE IT IS RETURNED TO SERVICE.
| Incident date | July 11, 2026 |
|---|---|
| Aircraft | LEAR 60LEAR |
| Registration | N924PS |
| Affected area | Cockpit |
| Event type | Smoke |
| Verification | Official |
Sources
- FAA SDR: N924PS smoke report on 2026-07-11 (external.apic4e.faa.gov)
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