# SDR SIMA20170103001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 3, 2017
- Submitted: January 13, 2017
- Operation: Air carrier
- Aircraft: [N831AE](https://openairdocs.org/aircraft/N831AE), registered now
- Make and model: Emb EMB-135KL
- Registry model: [EMB EMB-135KL](https://openairdocs.org/model/embraer-emb-135kl) (OpenAirDocs)
- Aircraft serial: 145616
- Aircraft time: 34,328 hours, 30,004 cycles
- System (JASC): [3444 · Ground Proximity System](https://openairdocs.org/jasc/3444)
- Part: Icu
- Part number: 7510700766
- Part serial: 04025456
- Condition: Failed
- Location: Left
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20170103001

## Discrepancy

TCAS FAILED ON BOTH PFDS IN ENROUTE.  REMOVED AND REPLACED 1 ICU IAW AMM 23-00-01. OPS CHECKED GOOD IAW AMM 34-43-00 .

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