NOXIOUS VAPOR IN CABIN. FLAP CIRCUIT BREAKER POPPED. THE PILOT NOTED AN UNKNOWN AIRBORNE IRRITANT IN THE COCKPIT WHICH RESULTED IN A BURNING SENSATION IN THE EYES, NOSE AND THROAT. THE PIC DECLARED AN EMERGENCY AND RETURNED TO EWR AND LANDED SAFELY. MX: 1) PERFORMED ENGINE COMPARTMENT INSPECTION IAW C208 AMM 71-00-01. NO DEFECT NOTED. PERFORMED ENGINE RUN IAW MANUFACTURE. PILOTS OPERATING HANDBOOK. NO NOXIOUS FUMES OR OTHER SMELLS DETECTED. LUBRICATED FLAP BELL CRANK IAW C208-MM-12-21-02. FLAP OPERATED FREE AND CORRECT. PERFORMED OPS CHECK ON FLAP NORMAL AND STBY FLAP SYSTEM, CYCLED BOTH NORMAL AND STBY SYSTEM INDIVIDUALLY, IAW MM-27-50-00, ALL FLAP POSITION CYCLED WITHOUT POPPING FLAP CB.
| Incident date | April 8, 2026 |
|---|---|
| Airline | MTNA |
| Flight | AMM71 |
| Aircraft | CESSNA 208B |
| Registration | N831FE |
| Affected area | Cockpit |
| Event type | Fumes or Odor |
| Verification | Official |
Sources
- FAA SDR: MTNA fumes or odor report on 2026-04-08 (external.apic4e.faa.gov)
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