# SDR FDEA202602250280

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 25, 2026
- Submitted: February 26, 2026
- Operation: Air carrier
- Aircraft: [N670FE](https://openairdocs.org/aircraft/N670FE), registered now
- Make and model: Airbus A300 F4-605R
- Registry model: [Airbus A300 F4-605R](https://openairdocs.org/model/airbus-industrie-a300-f4-605r) (OpenAirDocs)
- Aircraft serial: 777
- Aircraft time: 38,060 hours, 21,225 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Location: Cabin
- Stage of operation: CR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: B, G
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA202602250280

## Discrepancy

AT 1706Z, IN CRUISE FL350, .8 MACH, STRONG FUMES  LIKE BURNING SULPHUR FROM FIREWORKS ENTERED THE  COCKPIT. DONNED OXYGEN MASKS, DECLARED  EMERGENCY, AND MADE LANDING. BOTH COCKPIT MASKS AND  WALK AROUND BOTTLE WERE USED. INSPECTED BOTH ENGS NR 1 BEARING MANIFOLD AREA, FOUND NO OIL LEAKS ON EITHER ENG.  OPENED BOTH NR 1 & 2 ENGS & PERFORMED VISUAL INSPECTION OF BOTH ENGS, FOUND NO LEAKS. PERFORMED ENG RUNS ON BOTH ENGS AND DURING RUNS INSPECTED AVIONICS COMP, UPPER & LOWER BAG BINS, BOTH PACKS RUNNING COLD & HOT, TEMPS NEVER GOT ANY ODD ODORS.   PERFORMED PACK BURNOUT WITH APU IAW 21-51-00-03.NO SIGNS OF ODORS THE ENTIRE TIME.  R & R COALESCER BAGS IAW 21-51-16-03.  NEITHER BAG HAD ANY STRANGE ODORS.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.