# SDR HNAA2020080300239

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 2, 2020
- Submitted: August 3, 2020
- 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: 37,075 hours, 34,049 cycles
- System (JASC): [2721 · Rudder Tab Control System](https://openairdocs.org/jasc/2721)
- Part: Pressure Switch
- Condition: Inoperative
- Location: Rudder
- 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/HNAA2020080300239

## Discrepancy

IN CRUISE, 310 KNOTS @ 13000FT, AUTOPILOT FAIL EICAS WARNING MSG, FOLLOWED BY YAW DAMPER FAIL CAUTION, FOLLOWED BY RUD SYS 1-2 INOP WARNING. A/P AND YAW DAMPER MSGS CLEARED. AFTER QRH, RUD SYS 1 BECAME OPERATIONAL, RUD SYS 2 REMAINED INOP. MAINTENANCE: PERFORMED FIM TASK 27-22-00-810-804-A BLOCKS 1 AND 8. R+R RUDDER SYS #2 PRESSURE SWITCH. IAW 27-23-04. LEAK CHECK AND OPS CHECK GOOD PER AMM 27-23-00. OK FOR SERVICE AT THIS TIME.

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