# SDR CALA2022101802846

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 18, 2022
- Submitted: October 18, 2022
- Operation: Air carrier
- Aircraft: [N77530](https://openairdocs.org/aircraft/N77530), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 39998
- Aircraft time: 36,674 hours, 12,792 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Fan
- Part number: NA
- Condition: Faulty
- Location: Na
- Stage of operation: UK
- 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/CALA2022101802846

## Discrepancy

AIR RETURN RUBBER BURNING SMELL ADDED IMAGES OF SMOKE/ODOR QUESTIONAIRE. FOUND AIR CONDITONING, RIGHT RECIRC FAN, CABIN AIR CB POPED, E4 REF AMM 05-51-26-800-801-C1, COMPLEATED INITIAL INSPECTION ON THE P6-4 PANEL. THROUGH C2(E)(15). FOUND RH RECIRC FAN FROZEN, AND WITH BURNT SMELL. REPLACED 2EA HEPA FILTERS AND REPLACED RH RECIRC FAN PER AMM 21-25-02-400-801. FANS CHKS OK. BREAKER CHKS OK. ROTABLE PARTS CHANGE WAS INDICATED - TT # 1813539  SN OFF 8976 FAN, AIR, DISTR  OFF 29-2125-9-0001 8976 ON 29-2125-9-0001 4195

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