# SDR CALA2026042915812

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 25, 2026
- Submitted: April 29, 2026
- Operation: Air carrier
- Aircraft: [N61101](https://openairdocs.org/aircraft/N61101), registered now
- Make and model: Boeing 787-9
- Registry model: [Boeing 787-9](https://openairdocs.org/model/boeing-787-9) (OpenAirDocs)
- Aircraft serial: 68647
- Aircraft time: 139 hours, 38 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Location: Cabin
- 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/CALA2026042915812

## Discrepancy

DUE TO HISTORY OF INTERMITTENT ELEC/BURNING ODOR IN CABIN - SFO MX TO SUPPORT BOEING TEAM WITH ACCOMPLISHMENT OF AVO17290 TO T/S SOURCE OF ELECTRICAL/BURNING ODOR (3 REPORTS IN HISTORY) CARRIED BY ELB IN ADDITION, MX TO ADDRESS LP 8660388 (LEFT LWR RECIRC FAN - PLACED ON MEL DUE TO NON-CORRELATED MSG AT TIME OF LAST EVENT). LEFT LWR RECIRC FAN TO BE REPLACED PRIOR TO  MEL BEING CLEARED. CONTACT TOMC WITH FINDINGS PRIOR TO CLEARING THIS LMC CORRECTION - DO NOT REMOVE THE LEFT LWR RECIRC FAN (CURRENTLY ON MEL) UNTIL DIRECTED BY ENGINEERING/TOMC AS THIS IS STILL BEING CONSIDERED AS A POTENTIAL SOURCE AND NEEDS TO BE RULED OUT BEFORE REPLACEMENT. UNLOCKING FOR SFO MX TO CLEAR ACCOMPLISHMENT OF AVO172900.

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