# SDR DALA1256883748

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 8, 2012
- Submitted: December 12, 2012
- Operation: Air carrier
- Aircraft: [N3748Y](https://openairdocs.org/aircraft/N3748Y), registered now
- Make and model: Boeing 737832
- Aircraft serial: 30489
- Aircraft time: 38,299 hours, 14,469 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Condition: Inoperative
- Location: Rt Recirculation
- 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/DALA1256883748

## Discrepancy

DURING DESCENT, AN ACRID ODOR CAME FROM AIR CONDITIONING SYS,  DISSIPATED AFTER LANDING.  WITH RT PACK OFF,  ODOR RETURNED.  MX REPLACED RT RECIRCULATING FAN IAW AMM 21-25.  OPS TEST OK,  ACFT RETURNED  TO SERVICE.

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