# SDR CALA2026032414798

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 23, 2026
- Submitted: March 24, 2026
- Operation: Air carrier
- Aircraft: [N17300](https://openairdocs.org/aircraft/N17300), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 43466
- Aircraft time: 11,123 hours, 3,796 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Filter
- Part number: 21FA407G
- Condition: Clogged
- Stage of operation: NR
- 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/CALA2026032414798

## Discrepancy

ACCOMPLISH FIM 21-00 TASK 830. SMOKE OR FUMES IN CABIN SOURCE UNKNOWN - FAULT ISOLATION. REMOVED & REPLACED BOTH RECIRCULATION AIR FILTERS REF AMM 21-25-01/401. ACCOMPLISHED SMOKE OR FUMES FIM TASK 21-00 TASK 830 WITH ALL PNEMATIC SOURCES NO ODORS PRESENT. TOMC ADVISED. A/C OK TO CONTINUE.PARTS USED:  29-2124-3-0006, QTY :1

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