# SDR MZZA2010072200015

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 21, 2010
- Submitted: July 22, 2010
- Operation: Air carrier
- Aircraft: [N27734](https://openairdocs.org/aircraft/N27734), registered now
- Make and model: Boeing 737724
- Aircraft serial: 28949
- Aircraft time: 37,134 hours, 12,133 cycles
- System (JASC): [3160 · Central Display](https://openairdocs.org/jasc/3160)
- Part: Deu
- Part number: 4081600930
- Part serial: 2518
- Condition: Failed
- Location: Nr 1
- Stage of operation: TO
- How discovered: O
- Nature of condition: G
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MZZA2010072200015

## Discrepancy

AIRSPEED ALT & ENG INSTRUMENTS BLANKING OUT.  FOUND NR 1 DEU FAIL.  REPLACED SAME PER AMM 31-62-21. VERIFIED SOFTWARE LOADED.   PERFORMED LAND VERIFY PER AMM 22-11-00, TESTS PASSED.  ACFT REMAINS CAT IIIA.  ANNUNCIATOR READS SAME.  ROTABLE PARTS CHANGE WAS INDICATED - TT  1379022, S/N OFF 02518 UNIT, ELECTRONIC  OFF 29-3162-9-0002 2518 ON 29-3162-9-0002 0429.

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