# SDR AALA20150512005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 12, 2015
- Submitted: May 13, 2015
- Operation: Air carrier
- Aircraft: [N126AN](https://openairdocs.org/aircraft/N126AN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6313
- Aircraft time: 1,413 hours, 611 cycles
- System (JASC): [3441 · Inertial Guidance System](https://openairdocs.org/jasc/3441)
- Part: Adiru
- Part number: HG2030BE03
- Part serial: 56076547
- Condition: Faulty
- Location: Zone 400
- Stage of operation: CR
- How discovered: O
- Nature of condition: N, G
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20150512005

## Discrepancy

EMERGENCY DECLARED, LANDING UNEVENTFUL & ACFT NOT OVERWEIGHT.  DURING CRUISE, THE CREW RECORDED A LOGBOOK DISCREPANCY.  1ST DISCREPANCY NAV ALT 1, AFTERWARDS MANY OTHER PROBLEMS.  ON ARRIVAL ACFT SHOWED ECAM MSGS, NAV ALT 1, RA 1 FAULT, F/CTL FCDC 1, CAB PR SYS 1.  THE CAPTAIN`S AIRSPEED ON THE PFD SHOWED 250KTS AT THE GATE.  R & R NR 1 ADIRU IAW AMM 34-12-34.  PERFORMED OPERATIONAL CHECK.  SYS CHECKED NORMAL.

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