# SDR SIMA20250712002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 12, 2025
- Submitted: July 15, 2025
- Operation: Air carrier
- Aircraft: [N224NN](https://openairdocs.org/aircraft/N224NN), registered now
- Make and model: Emb ERJ 170-200 LR
- Registry model: [EMB ERJ 170-200 LR](https://openairdocs.org/model/embraer-s-a-erj-170-200-lr) (OpenAirDocs)
- Aircraft serial: 17000536
- Aircraft time: 24,112 hours, 16,356 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Location: Cabin
- Stage of operation: NR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20250712002

## Discrepancy

PACK 1 EMITS STRANGE SMELL OF DEPARTURE THAN CAME BACK ON ARRIVAL ITEM DEFERRED PER MEL 21-44 .  PERFORMED OPC OF COOLING PACKS IAW AMM 21-51-00. COULD NOT DUPLICATE SMELL ON EITHER PACK. OPC GOOD. MEL RESTORED

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