# SDR AALA20120204DFW01

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 4, 2012
- Submitted: February 17, 2012
- Operation: Air carrier
- Aircraft: [N9622A](https://openairdocs.org/aircraft/N9622A), registered now
- Make and model: Doug DC-9-83
- Registry model: [Doug DC-9-83](https://openairdocs.org/model/douglas-dc-9-83) (OpenAirDocs)
- Aircraft serial: 53593
- Aircraft time: 38,514 hours, 17,849 cycles
- System (JASC): [3441 · Inertial Guidance System](https://openairdocs.org/jasc/3441)
- Part: Iru
- Condition: Failed
- Location: Zone 100
- 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/AALA20120204DFW01

## Discrepancy

CREW REPORTED RIGHT INERTIAL REFERENCE UNIT FAILED.  FLIGHT LANDED WITHOUT INCIDENT.  REPLACED RIGHT INERTIAL REFERENCE UNIT.  SYSTEM GROUND CHECKED NORMAL.

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