# SDR CALA2013100791770

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 3, 2013
- Submitted: October 8, 2013
- Operation: Air carrier
- Aircraft: [N651UA](https://openairdocs.org/aircraft/N651UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 25389
- Aircraft time: 93,088 hours, 14,633 cycles
- Engine: Pwa PW4060
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Line
- Condition: Damaged
- Location: Mlg Brake
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2013100791770

## Discrepancy

BRAKE PRESSURE AT ZERO DURING COCKPIT PREFLIGHT CHECK.  R & R HYDRAULIC BRAKE LINE FROM BRAKE METERING VALVE & THE AUTO BREAK SHUTTLE VALVE.  LEAK CHECKED GOOD.  BREAK PSI GOOD.  HYD BRAKE ACC READS 0 PSI.

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