# SDR CALA2026100620150

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 4, 2026
- Submitted: October 6, 2026
- Operation: Air carrier
- Aircraft: [N2138U](https://openairdocs.org/aircraft/N2138U), registered now
- Make and model: Boeing 777-300ER
- Registry model: [Boeing 777-300ER](https://openairdocs.org/model/boeing-777-300er) (OpenAirDocs)
- Aircraft serial: 62649
- Aircraft time: 39,454 hours, 4,224 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Sensor
- Part number: 11503221
- Condition: Faulted
- Location: Cabin Pressure
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026100620150

## Discrepancy

BLEED FAMV L EICAS STATUS LEFT ENGINE BLEED FAN AIR MODULATING VALVE (FAMV) FAILED OPEN OR CLOSED OR LEFT AIR SUPPLY AND CABIN PRESSURE CONTROLLER FAILURE . DB AIR SUPPLY & CABIN PRESSURE CONTROLLER (L) REF LP 3597938, REPLACED SENSOR M36004. ACCOMPLISHED ENGINE AIR SUPPLY - OPERATIONAL TESTREFERENCE: TASK 36-10-00-700-801 ALL TESTS PASSED

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