# SDR AALA20020515

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 22, 2002
- Submitted: July 19, 2002
- Operation: Air carrier
- Aircraft: [N191AN](https://openairdocs.org/aircraft/N191AN), registered now
- Make and model: Boeing 757223
- Aircraft serial: 32385
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20020515

## Discrepancy

LAX - FLT 297 - EN ROUTE LAX-HNL - BOTH FMC'S FAILED TO PERFORM NAVIGATION CALCULATIONS FOLLOWING TAKEOFF.  RESET PER OPERATIONS MANUAL.  RETURNED AND LANDED LAX WITHOUT INCIDENT.  VERIFIED SOFTWARE FOR FMC: OPC, OPS, FDO, AMI ALL GOOD PER MAINTENANCE MANUAL.  RELOADED FMC NAVIGATION DATA SOFTWARE PROGRAM AA8-0204-001.  GROUND CHECKS NORMAL.  (M)

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