# SDR DXTA2026012106601

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 19, 2026
- Submitted: January 21, 2026
- Operation: Air carrier
- Aircraft: [N164QS](https://openairdocs.org/aircraft/N164QS), registered now
- Make and model: Bombdr BD7001A10
- Aircraft serial: 9649
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Transducer
- Condition: Faulted
- Location: Brake Sys
- 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/DXTA2026012106601

## Discrepancy

REPEAT WRITE UP. AFTER LOWERING MLG, AMBER AUTOBRAKE FAIL CASS MESSAGE ILLUMINATED ACCOMPANIED BY CYAN BRAKE FAULT CASS MESSAGE. MAINT FAULT CODE 3246015HA DISPLAYED IN FMS OF MAINT PAGE.  COULD NOT DUPLICATE. NO FAULT MESSAGES ON POWER UP. RAN ENGS & HYD POWER, TESTED BRAKES, NO FAULT MESSAGES.  RAN BITE TESTS BCU,  PASSED. INSPD BRAKE COMPONENTS.  NO DEFECTS. CHKD SECURITY OF CONNECTOR PLUGS,  NO DEFECTS.  SHOOK DOWN WIRING TRYING TO INDUCE FAULT, NO DEFECTS.  RANG OUT WIRING BTWN BCU & L OTBD BCV,  OTBD BRAKE SHUTOFF VALVE, & LT OTBD BRAKE PRESSURE TRANSDUCER, NO DEFECTS.   MCC REQUESTS REPLACE LT OTBD BRAKE PRESSURE TRANSDUCER  MT52.  R & R L OTBD BPT IAW AMM 32-43-17.  PERFORMED BLEED, LEAK, & OPS CHKS GOOD. R & R BCU IAW AMM 32-43-01. PERFORMED OPS CHKS, NO DEFECTS.

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