# SDR DXTA2026092109742

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 16, 2026
- Submitted: September 21, 2026
- Operation: Air carrier
- Aircraft: [N328QS](https://openairdocs.org/aircraft/N328QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500175
- Aircraft time: 11,560 hours, 9,092 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Relief Valve
- Part number: DAP0011001
- Part serial: 1010
- Condition: Defective
- Location: Zone 700
- Stage of operation: TX
- 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/DXTA2026092109742

## Discrepancy

DURING CRUISE RECEIVED AN EMER BRK LOW PRESSURE CAS. PRESSURE WAS APPROXIMATLEY 150PSI AND CONTINUED TO DROP. SOMETIME BETWEEN TOUCHDOWN AND ENGINE SHUTDOWN PRESSURE CAME BACK UP TO 2900 THEN DROPPED TO 2400PSI WITHIN 10 MINUTES. TWO MORNINGS IN A ROW AIRCRAFT HAD EMER BRK LOW PRESSURE CAS PRIOR TO FIRST FLIGHT. CORRECTIVE ACTION: REPLACED THERMAL RELIEF VALVE. OPS CHECK GOOD. IAW AMM 32-43-08

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.