# SDR AALA201809209011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 18, 2018
- Submitted: September 20, 2018
- Operation: Air carrier
- Aircraft: [N977NN](https://openairdocs.org/aircraft/N977NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31225
- Aircraft time: 10,150 hours, 3,981 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/AALA201809209011

## Discrepancy

DURING CLIMBOUT,  FLIGHT ATTENDANTS NOTED A BURNING ODOR AND HAZE IN THE CABIN AROUND EMERGENCY EXIT ROW 16.  IN THE COCKPIT, SMELLED LIKE A CANDLE WICK.  RAN SMOKE, FIRE OR FUMES CHECKLIST. COULD NOT FIND AN IDENTIFIABLE SOURCE.   RETURNED TO DEPARTURE.  THE AIRCRAFT WAS GROUNDED.  ACCOMPLISHED MCM 05-96-70.  ACCOMPLISHED FIM 71-05-00-810-807. REPLACED THE RECIRCULATION AIR FILTERS IAW AMM 21-25-01. REMOVED EXCESS LUBRICANT FROM RIGHT ENGINE FAN BLADES. ACCOMPLISHED HIGH POWER ENGINE RUNS, AND APU ALTERNATELY FOR PACKS. NO ODOR NOTED. OK FOR SERVICE.

---
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.