# SDR R61A2026070300184

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 3, 2026
- Submitted: July 8, 2026
- Operation: Air carrier
- Aircraft: [N111HQ](https://openairdocs.org/aircraft/N111HQ), registered now
- Make and model: Emb ERJ 170-200 LR
- Registry model: [EMB ERJ 170-200 LR](https://openairdocs.org/model/embraer-s-a-erj-170-200-lr) (OpenAirDocs)
- Aircraft serial: 17000173
- Aircraft time: 43,400 hours, 33,025 cycles
- System (JASC): [3140 · Central Computers](https://openairdocs.org/jasc/3140)
- Part: Mau
- Condition: Faulted
- Location: Zone 100
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/R61A2026070300184

## Discrepancy

AVNX MAU 3A FAULT WHILE CRUISING AT 23,000 FT. ASSOCIATED AP AND ALT FAIL CAUTION MESSAGES. BOTH FMS NAV FELL OFF PFD. MULTIPLE FLIGHT INSTRUMENTS FAILED. DECLARED EMERGENCY, LANDED WITHOUT INCIDENT.  PERFORMED POWER RESET FOR 15 MINS. FAULT DID NOT RETURN.

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