# SDR DXTA2026012306612

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 20, 2026
- Submitted: January 23, 2026
- Operation: Air carrier
- Aircraft: [N486QS](https://openairdocs.org/aircraft/N486QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500840
- Aircraft time: 1,114 hours, 892 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Blower
- Part number: 1133850107
- Part serial: 1445
- Condition: Faulty
- 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/DXTA2026012306612

## Discrepancy

DURING INITIAL CLIMB OUT OF ADS WE BOTH NOTICED A SMOKE/BURNING SMELL THAT LASTED FOR ABOUT 30 SECONDS AND THEN DISSIPATED. THE ONLY ABNORMAL INDICATION WE SAW WAS AN OCCASIONAL AMBER X ON THE RIGHT SIDE OF THE HEAT EXCHANGER ON THE ECS PAGE. ADDITIONALLY I RECALL THAT YESTERDAY WHEN SWITCHING THE COCKPIT FAN FROM LOW TO MEDIUM IT WAS LOUDER THAN NORMAL ALTHOUGH TODAY IT SOUNDS NORMAL AGAIN. NO SMOKE WAS VISIBLE DURING THE FLIGHT BUT WE BOTH OCCASIONALLY NOTICED THE SMELL AGAIN VERY BRIEFLY AS WE FLEW BACK TO DAL. CORRECTIVE ACTION: REMOVED COCKPIT EVAPORATOR BLOWER P/N: 1133850-107 S/N:1445 AND INSTALLED CUSTOMER SUPPLIED, NEW COCKPIT EVAPORATOR BLOWER P/N: 1133850-107 S/N:1481. OPS CHECKS GOOD ALL WORK IN REF TO EMB-505 AMM 21-52-04

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