# SDR CALA2026082418862

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 20, 2026
- Submitted: August 24, 2026
- Operation: Air carrier
- Aircraft: [N495UA](https://openairdocs.org/aircraft/N495UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1842
- Aircraft time: 67,937 hours, 30,206 cycles
- Engine: Iae V2527A5
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Part number: C13043BA05
- Part serial: 3737
- Condition: Faulted
- Location: Nr 2
- Part time: 781,238 hours, 735,595 cycles
- Stage of operation: CR
- 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/CALA2026082418862

## Discrepancy

FMGC 2 KEEPS FAILING FO MAP LOST LOCKING FOR POSITIVE FIX UNLOCKED PERFORMED AFS TEST IAW AMM 22-96-00. TEST OK NO FAULTS NOTED. LAND CAT 3 TEST WAS PERFORMED, IAW AMM 22-97-00, LAND TEST OK,  NO FAULTS FOUND.   SUSPECT FMGC 2 INSTALLED BAD FROM STOCK CHKD SCEPTRE SCIRHC HISTORY SHOWED LRU WAS BAD FROM STOCK MULTIPLE TIMES. R & R FMGC 2 IAW AMM 22-83-34. OPS CHECKED GOOD. PERFORMED AFS TEST IAW AMM 22-96-00. TEST OK, NO FAULTS NOTED. LAND CAT 3 TEST WAS PERFORMED AGAIN IAW AMM 22-97-00, LAND TEST OK, NO FAULTS FOUND.

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