# SDR AALA202107224767

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 2021
- Submitted: July 22, 2021
- Operation: Air carrier
- Aircraft: [N189UW](https://openairdocs.org/aircraft/N189UW), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1425
- Aircraft time: 66,386 hours, 25,025 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Brake
- Condition: Weak
- Location: Mlg
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202107224767

## Discrepancy

AIRCRAFT WAS GROUNDED: DURING TAXI IN WHILE ATTEMPTING TO BRAKE AIRCRAFT REQUIRED MORE PEDAL TRAVEL THAN NORMAL AND HAD A SPONGY FEEL. FOUND RESERVOIR PISTON ON 2624 GM FULLY DEPRESSED BELOW THE RED BAND . ACCOMPLISHED FILLING AND BLEEDING OF THE LOW PRESSURE CONTROL SYSTEM OF THE ALTERNATE BREAKING. OPS CHECKS NORMAL  REF AMM 32-43-00-612-001-A .

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