# SDR SWI2025F01126

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 31, 2025
- Submitted: September 2, 2025
- Operation: Air carrier
- Aircraft: [N89362](https://openairdocs.org/aircraft/N89362), registered now
- Make and model: Emb ERJ 170-200 LL
- Registry model: [EMB ERJ 170-200 LL](https://openairdocs.org/model/embraer-s-a-erj-170-200-ll) (OpenAirDocs)
- Aircraft serial: 17000856
- Aircraft time: 6,268 hours, 3,921 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Condition: Odor
- Location: Recirc
- Stage of operation: CR
- 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/SWI2025F01126

## Discrepancy

PILOTS INBOUND SAID THEY STILL SMELLED A BURNING PLASTIC SMELL IN FLIGHT AND THE ODOR GAVE THE FO A HEADACHE.   (FLIGHT 4736) T/S IN REF WITH ERJ 175 FIM 21-20-00 STARTING ON PAGE 9-BLOCK 1, WITH APU AND ENGINES 1 & 2 RUNNING UNLATCHED BLEED APU TO ENSURE PACK OPS CAME FROM ENG BLEED 1 & 2. PERFORMED CHECKS OF INDIVIDUAL PACK OPS FROM INDIVIDUAL ENG BLEED SOURCES WITH & WITHOUT THE RECIRC FAN OPS THROUGH AIR CONDITIONING PANEL. NOTICED SLIGHT SMELL WHEN RECIRC FAN #2 IN USE. NO MESSAGES PRESENT THROUGHOUT PROCESS. PERFORMED OPS CHECK OF THE RECIRC FANS IN REF WITH AMM 21-24-00.PERFORMED OPS CHECK OF PACKS 1 & 2 IN REF WITH AMM 21-51-00.PERFORMED OPS CHECK OF ENG 1 & 2 IN REF WITH ERJ 175 AMM 71-00-01.PERFORMED OPS CHK OF APU IAW AMM 49-10-00.

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