# SDR CALA2025122912499

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 25, 2025
- Submitted: December 29, 2025
- Operation: Air carrier
- Aircraft: [N35260](https://openairdocs.org/aircraft/N35260), registered now
- Make and model: Boeing 737824
- Aircraft serial: 30855
- Aircraft time: 76,015 hours, 26,581 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Receiver
- Part number: 8221152004
- Part serial: 117445
- Condition: Faulted
- Location: Zone 100
- Part time: 722,553 hours, 708,963 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2025122912499

## Discrepancy

INVALID FMC MSG ON DEPARTURE. SELF CORRECTED AFTER 5 MIN REPLACED MMR1  REF AMM 34-31-42. FULLY CAT CAPABLE, LAND VERIFY PASSED. INSPECTED GPS ANTENNA AND OP TEST.  ALL CHECK GOOD.

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