# SDR YENA2026042000410

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 17, 2026
- Submitted: April 20, 2026
- Operation: Air carrier
- Aircraft: [N3085J](https://openairdocs.org/aircraft/N3085J), registered now
- Make and model: Airbus BD-500-1A11
- Registry model: [Airbus BD-500-1A11](https://openairdocs.org/model/airbus-canada-lp-bd-500-1a11) (OpenAirDocs)
- Aircraft serial: 55132
- Aircraft time: 12,014 hours, 5,065 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Concentrator
- Part number: C04500020001
- Part serial: AUG200507
- Condition: Faulted
- Location: Zone 700 Brakes
- Part time: 12,014 hours, 5,065 cycles
- 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/YENA2026042000410

## Discrepancy

FLT#1006, BNA-BOS. (AN EMERGENCY WAS DECLARED - CODE RED) "BRAKE ON INDICATION DURING CRUISE AT 37,000FT. STAYED ON FOR ABOUT 25 MINUTES EXTINGUISHED AT 11000FT ON DESCENT. NORMAL LANDING; SEE LOG PG 4768127 ITEM 2 (DURING IBIT TEST OF BDCU 1 & 2 FOUND THAT BDCU 1 WAS INCONSISTANT WITH TESTING AND WOULD PASS/FAIL OR KICK OUT OF THE MENU SAYING UNABLE TO TEST AT THIS TIME, REMOVED AND REPLACED BDCU 1 AND PERFORMED MULTIPLE TEST AND ALL PASSED WITH CONSISTANCY REFERANCE FOR REPLACEMENT IS AMM 32-43-10 OPS CHECK GOOD ) FOR REPLACEMENT OF BDCU 1 OPS CHECK GOO A/C IS OK FOR SERVICE.

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