# SDR USAA2012082100012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 19, 2012
- Submitted: August 21, 2012
- Operation: Air carrier
- Aircraft: N946UW
- Make and model: Emb ERJ 190-100 IGW
- Registry model: [EMB ERJ 190-100 IGW](https://openairdocs.org/model/embraer-erj-190-100-igw) (OpenAirDocs)
- Aircraft serial: 19000072
- Aircraft time: 11,932 hours, 9,927 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Heat Exchanger
- Part number: 10028321
- Condition: Contaminated
- Location: Ac Bay
- Stage of operation: TO
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2012082100012

## Discrepancy

FLIGHT 2131, BOS - LGA - ELECTRICAL SMELL AFTER TAKEOFF THEN CLEARED, F/A NOTICED ODOR AT TAXI INTO LGA.  PRIOR FLIGHT 2123, BOS - LGA, RETURNED TO BOS WITH A SMELL IN THE CABIN AND STRONG ELECTRICAL ODOR IN THE COCKPIT.  MAINTENANCE ACCOMPLISHED JOB CARD 43L00021001 TO TROUBLESHOOT CABIN AIR QUALITY.  NO DEFECTS WERE NOTED.  LGA MAINTENANCE FOUND THE NR 2 HEAT EXCHANGER FULL OF COFFEE RESIDUE.  CLEANING WAS SUCCESSFUL, OPERATIONAL CHECKS OF BOTH BLEEDS AND BOTH PACKS AT HIGH POWER WERE SUCCESSFUL.  THE RECIRC FILTERS WERE ALSO REMOVED AND REPLACED.

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