# SDR AALA2018072099001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 15, 2018
- Submitted: July 20, 2018
- Operation: Air carrier
- Aircraft: [N945AN](https://openairdocs.org/aircraft/N945AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 30085
- Aircraft time: 53,022 hours, 22,038 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Brake Assy
- Part number: 26123121
- Part serial: B18175
- Condition: Damaged
- Location: Mlg
- Stage of operation: TX
- How discovered: O
- Nature of condition: E
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA2018072099001

## Discrepancy

AFTER LANDING AND DURING TAXI BOTH BRAKES HAD EXCESSIVE CHATTER, MAKING STOPPING DIFFICULT. TROUBLESHOOTING PER TSM REF 32-42-00. TAXI CHECKED AIRCRAFT AND CONFIRMED FAULT. ACC ANTI-SKID/AUTOBRAKE CONTROL TEST PER MM REF 32-42-00. CHECKS GOOD. ACC XDUCER TEST PER MM REF 32-42-00. CHECKS GOOD. REPLACED BOTH #1 AND #2 BRAKE ASSEMBLY PER MM REF 32-41-41. OPERATIONS AND LEAK CHECKS GOOD. TAXI CHECKED AIRCRAFT, CHECKS GOOD, OK FOR SERVICE. THIS SDR IS FOR THE #2 BRAKE ASSEMBLY.  AIRCRAFT WAS GROUNDED.

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