# SDR MTNA2026040800001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 8, 2026
- Submitted: April 8, 2026
- Operation: Air carrier
- Aircraft: [N831FE](https://openairdocs.org/aircraft/N831FE), registered now
- Make and model: Cessna 208B
- Registry model: [Cessna 208B](https://openairdocs.org/model/cessna-208b) (OpenAirDocs)
- Aircraft serial: 208B0225
- Aircraft time: 14,955 hours, 15,542 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Location: Cabin
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MTNA2026040800001

## Discrepancy

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.

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