# SDR USAA2013123100006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 30, 2013
- Submitted: December 31, 2013
- Operation: Air carrier
- Aircraft: [N114UW](https://openairdocs.org/aircraft/N114UW), registered now
- Make and model: Airbus A320-214
- Registry model: [Airbus A320-214](https://openairdocs.org/model/airbus-a320-214) (OpenAirDocs)
- Aircraft serial: 1148
- Aircraft time: 43,055 hours, 19,760 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Selector Valve
- Part number: C24703003
- Part serial: H1738
- Condition: Inoperative
- Location: Brake System
- Part time: 37,697 hours, 16,553 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2013123100006

## Discrepancy

DURING TAXI PARKING BRAKE WAS SET & ACFT BEGAN TO ROLL.  WHEN PARKING BRAKE WAS RELEASED MAX BRAKING OCCURRED.  RETURNED TO GATE WITH NORMAL BRAKING UNTIL NR 2 ENG SHUTDOWN, LOSS OF ALL BRAKING FOR ABOUT 2 SECONDS.  AFTER ACFT WAS CHOCKED & ENG NR 1 SHUTDOWN LOSS OF BRAKING OCCURRED AGAIN.  REPLACED PARKING BRAKE SELECTOR VLV IAW A320 AMM 32-45-51.

---
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.