# SDR AALA201701259008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 23, 2017
- Submitted: January 25, 2017
- Operation: Air carrier
- Aircraft: N963UW
- Make and model: Emb ERJ 190-100 IGW
- Registry model: [EMB ERJ 190-100 IGW](https://openairdocs.org/model/embraer-erj-190-100-igw) (OpenAirDocs)
- Aircraft serial: 19000191
- Aircraft time: 20,440 hours, 14,598 cycles
- System (JASC): [3140 · Central Computers](https://openairdocs.org/jasc/3140)
- Part: Module
- Part number: 70244401903
- Part serial: 3253
- Condition: Failed
- Location: Avionics
- Part time: 20,440 hours, 14,598 cycles
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201701259008

## Discrepancy

DURING APPROACH, FLIGHT CREW REPORTED A FAILURE OF THE MODULAR AVIONICS UNIT 3A. DECLARED EMERGENCY AT 24,000, PERMANENT LOSS OF FMS 2 A/P CHANNEL 2 GPS 2.  THE AIRCRAFT WAS GROUNDED.  MAINTENANCE REPLACED PROCESSOR MODULE PER AMM TASK 31-41-04-000-801A. ACCOMPLISHED NAVIGATIONAL DATA BASE LOAD PER JOB CARD 43T22034001.

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