# SDR HNAA2018090400213

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 2, 2018
- Submitted: September 4, 2018
- Operation: Air carrier
- Aircraft: [N672AE](https://openairdocs.org/aircraft/N672AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145794
- Aircraft time: 33,970 hours, 30,527 cycles
- System (JASC): [2730 · Elevator Control System](https://openairdocs.org/jasc/2730)
- Part: Servo
- Condition: Faulty
- Location: Elevator
- Stage of operation: CL
- How discovered: O
- Nature of condition: E
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA2018090400213

## Discrepancy

DURING CLIMB/CRUISE PHASES OF FLT A LOUD BANG/THUD SOUND WAS NOTED. IT APPEARED TO COME FROM FLOOR BELOW BOTH PILOTS SEATS SIMULTANEOUSLY AND BOTH CONTROL YOKES JERKED. EVENT OCCURED THREE TIMES DURING FLT. R&R ELEVATOR SERVO IAW AMM 22-11-04. A/P FUNC CHECK GOOD AT THIS TIME OK FOR SERVICE.

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