# SDR HNAA2018081500201

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 14, 2018
- Submitted: August 15, 2018
- Operation: Air carrier
- Aircraft: [N665BC](https://openairdocs.org/aircraft/N665BC), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145783
- Aircraft time: 35,133 hours, 31,014 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Muffler
- Condition: Obstructed
- Location: Recirculation
- Stage of operation: TX
- How discovered: O
- Nature of condition: C, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA2018081500201

## Discrepancy

CREW REPORTED A STRONG ODOR WITH THE NR 2 PACK SELECTED.  FOUND AN OBSTRUCTION IN THE RECIRCULATION SYS.  CLEANED THE MUFFLER IAW 21-24-02-100-801-A. NO ABNORMAL ODORS NOTED.

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