# SDR CALA2026042815774

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 25, 2026
- Submitted: April 28, 2026
- Operation: Air carrier
- Aircraft: [N657UA](https://openairdocs.org/aircraft/N657UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 27112
- Aircraft time: 128,671 hours, 19,670 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Brake
- Part number: 26124121A
- Part serial: 2596
- Condition: Failed
- Location: Zone 700
- Part time: 25,673 hours, 19,107 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026042815774

## Discrepancy

NUMBER 5 BRAKE UNIT, CARBON PACK DAMAGED & BROKEN. EVIDENCE OF OVERHEAT DUE TO SMOKE & VISUAL HEAT DAMAGE.  AMM 32-41-08/201 SERVICE TIP FOR GRABBING BRAKES. NR 5 BRAKE TEMPERATURE AT 2, NR 6 AT 1, NR 7 AT 2, NR 8 AT 2. NO ISSUES REPORTED FROM PILOTS EITHER. BRAKES DEEMED TO BE GRABBING AND NO SIGNS OF OVERHEAT CONDITION.  SMOKING WAS VERY LIGHT, STATOR DISCOLOURATION DUE TO GRABBING. NO HISTORY OF BRAKES GRABBING SO THIS IS THE FIRST WRITE UP IAW SERVICE TIP. WHEEL INSPECTION CARRIED OUT IAW 32-41-08-601. BRAKE UNIT REQUIRED REPLACING DUE TO STATOR DISINTEGRATION. AXLE SHOWED NO SIGNS OF DISCOLOURATION/ HEAT DAMAGE.

---
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.