# SDR HNAA2025111700740

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 16, 2025
- Submitted: November 17, 2025
- Operation: Air carrier
- Aircraft: [N640AE](https://openairdocs.org/aircraft/N640AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145183
- Aircraft time: 54,859 hours, 52,600 cycles
- System (JASC): [2720 · Rudder Control System](https://openairdocs.org/jasc/2720)
- Part: Pressure Switch
- Part number: 4800101
- Condition: Faulted
- Location: Zone 300
- Stage of operation: TO
- How discovered: O
- Nature of condition: J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA2025111700740

## Discrepancy

RUDDER SYSTEM 2 INOP DISPLAYED DURING TAKE-OFF AT ABOUT 50 KNOTS.    R&R RUDDER PRESSURE SWITCH IN REF WITH 27-23-04-000-A/400-801-A. R&R RELAY K0387 IN REF WITH AMM TASK 20-13-02-000/400-801-A. R&R RUDDER SHUTOFF SYS 2 PB SWITCH IN REF WITH AMM 20-13-04-000/400-801-A. PERFORMED OPS CHECK IN REF WITH AMM TASK 27-25-00-700-801-A. OPS CHECK GOOD. OK FOR SERVICE

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