# SDR QXEA2024102300248

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 21, 2024
- Submitted: October 23, 2024
- Operation: Air carrier
- Aircraft: [N650QX](https://openairdocs.org/aircraft/N650QX), 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: 17000809
- Aircraft time: 13,671 hours, 9,227 cycles
- System (JASC): [2230 · Auto Throttle System](https://openairdocs.org/jasc/2230)
- Part: Control Quadrant
- Part number: 426000185
- Part serial: 260326
- Condition: Malfunctioned
- Location: Autothrottle Sys
- Part time: 13,675 hours, 9,234 cycles
- Stage of operation: DE
- 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/QXEA2024102300248

## Discrepancy

AUTO THROTTLES DISENGAGED DURING DESCENT.  RESELECTED A/T, GOT MASTER CAUTION A/T FAIL EICAS MESSAGE (AUTOTHROTTLE CHANNELS – BOTH INOPERATIVE). REMOVED FROM SERVICE.TROUBLESHOT PER E175 FIM 22-31-00-810-811-A. REMOVED AND REPLACED THRUST CONTROL QUADRANT ASSEMBLY IAW E175 AMM 76-11-01-000/400-801-A. FUNCTIONAL TEST OF THRUST REVERSERS GOOD. STILL REQUIRES OPS TEST OF TOGA SWITCH. PERFORMED OPS TEST OF TOGA SWITCH IAW AMM 22-11-00-710-801-A. OPS CHECKED GOOD. NO FURTHER DEFECTS NOTED. RETURNED TO SERVICE.

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