# SDR CALA2013102292268

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 22, 2013
- Submitted: October 25, 2013
- Operation: Air carrier
- Aircraft: [N204UA](https://openairdocs.org/aircraft/N204UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 28713
- Aircraft time: 66,104 hours, 9,151 cycles
- Engine: Pwa PW40903
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Condition: Faulty
- Location: Hydraulic Sys
- Stage of operation: NR
- 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/CALA2013102292268

## Discrepancy

C1 ADP WILL NOT PRODUCE MORE THAN 1500 PSI WHEN OPERATED WITH APU BLEED AIR.  PUMP SLOWLY WILL RISE TO 3000PSI.  PRESSURE ALSO CYCLES.

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