# SDR UIEA200400172

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 23, 2004
- Submitted: October 7, 2004
- Operation: Air carrier
- Aircraft: [N540MC](https://openairdocs.org/aircraft/N540MC), registered now
- Make and model: Boeing 747243B
- Aircraft serial: 22508
- System (JASC): [3420 · Attitude and Direction Data System](https://openairdocs.org/jasc/3420)
- Part: Indicator
- Part number: 1491500102
- Condition: Failed
- Location: Adi
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: J, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA200400172

## Discrepancy

CAPTAINS ADI FAILED.  INSTRUMENT WARNING LIGHT AND ATTITUDE LIGHT, UNABLE OT SWITCH TO NR 3 INU DUE TO BEING INOPERATIVE.  REMOVED AND REPLACED CAPTAINS ADI IAW MM 34-41-05, OPS NORMAL.  REMOVED AND REPLACED NR 1 AND NR 3 INU IAW MM 34-41-03 CHECKS ALL SYSTEM OPERATE NORMAL.  FUEL DUMPED 59.4 KGS.  (M)

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