# SDR IPXA2020021435087

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 12, 2020
- Submitted: February 14, 2020
- Operation: Air carrier
- Aircraft: [N441UP](https://openairdocs.org/aircraft/N441UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 27386
- Aircraft time: 26,495 hours, 17,334 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Relay
- Part number: 91238072
- Condition: Failed
- Location: Recircul Fan
- Stage of operation: DE
- 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/IPXA2020021435087

## Discrepancy

INSPECTION TYPE:N/AON DESCENT STRONG SMELL OBSERVED SIMILAR ILLEGIBLE ELECTRIC SMELL OR DIRTY SOCK. SAME SMELL WITH EITHER R OR L PACK OFFRAN PACK FOR SEVERAL MINUTES NO HELP. VISUALLY INSPECTED RECIR-FAN DISCREPANCIES FOUND WO 0559168 02-12-20. REPLACED 415 REF WDM 21-25-11 PAGE 2 RECIRC FAN RELAY CHECKS NORMAL REF A 21-25-00-501-3 REF FIM 21-00-01-301 6 ESR: 21-25-61-01-010

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