# SDR AALA20170210003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 8, 2017
- Submitted: February 10, 2017
- Operation: Air carrier
- Aircraft: [N792AN](https://openairdocs.org/aircraft/N792AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 30253
- Aircraft time: 66,875 hours, 8,463 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Control Unit
- Part number: 429072
- Part serial: 553
- Condition: Faulty
- Location: Brakes
- Part time: 6,670 hours, 757 cycles
- Stage of operation: LD
- How discovered: O
- Nature of condition: S
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20170210003

## Discrepancy

AUTOBRAKES WENT TO DISARM ON LANDING WITHOUT BRAKE PEDAL APPLICATION.  AUTOBRAKES 2 WAS SET. REMOVED AND REPLACED BRAKE SYSTEM CONTROL UNIT IAW AMM 32-42-01. OPS CHECKED GOOD.

---
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.