# SDR MZZA2011030700008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 6, 2011
- Submitted: March 7, 2011
- Operation: Air carrier
- Aircraft: [N14735](https://openairdocs.org/aircraft/N14735), registered now
- Make and model: Boeing 737724
- Aircraft serial: 28950
- Aircraft time: 39,150 hours, 12,764 cycles
- System (JASC): [3441 · Inertial Guidance System](https://openairdocs.org/jasc/3441)
- Part: Adiru
- Part number: HG2050AC05
- Part serial: 99031549
- Condition: Failed
- Location: Nr 1
- Part time: 37,230 hours, 12,099 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: G, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MZZA2011030700008

## Discrepancy

BOTH EEC ALTN LIGHT ILLUMINATED.  CDU BITE TEST FOUND ADIRU NR 1 (LT) FAULTY.  REMOVED AND REPLACED SAME PER AMM 34-21-01.  ALL CHECK NORMAL.  ROTABLE PARTS CHANGE WAS INDICATED - TT 1445854,  S/N OFF 01549 UNIT, ADIRU, AI  OFF 29-3421-9-0002 1549, ON 29-3421-9-0010 0979.

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