# SDR AALA20141017016

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 17, 2014
- Submitted: October 21, 2014
- Operation: Air carrier
- Aircraft: [N953NN](https://openairdocs.org/aircraft/N953NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 33328
- Aircraft time: 1,168 hours, 426 cycles
- System (JASC): [3441 · Inertial Guidance System](https://openairdocs.org/jasc/3441)
- Part: Adiru
- Part number: HG2050AC07
- Condition: Inoperative
- Location: Zone 200
- Stage of operation: CL
- How discovered: O
- Nature of condition: G, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20141017016

## Discrepancy

LOSS OF RT INERTIAL REFERENCE SYS & YAW DAMPER.  EMER DECLARED FLIGHT RETURNED & LANDED WITHOUT INCIDENT.  ACFT REMOVED FROM SERVICE.  REPLACED AIR DATA INERTIAL REFERENCE UNIT.  SYS GND CHECKED NORMAL, OPERATION CLOSED.

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