# SDR AALA20090704BOS01

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 4, 2009
- Submitted: July 21, 2009
- Operation: Air carrier
- Aircraft: [N641AA](https://openairdocs.org/aircraft/N641AA), registered now
- Make and model: Boeing 757223
- Aircraft serial: 24599
- Aircraft time: 58,635 hours, 20,563 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Pca
- Part number: 280511MOD
- Condition: Leaking
- Location: Hydraulic Sys
- Stage of operation: CR
- How discovered: O
- Nature of condition: K
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20090704BOS01

## Discrepancy

BOS - CREW REPORTED LOSS OF RIGHT HYDRAULIC QUANTITY.  EMERGENCY DECLARED, RETURNED TO BOS WITHOUT INCIDENT.  AIRCRAFT REMOVED FROM SERVICE.  FOUND POWER CONTROL ACTUATOR LEAKING.  REPLACED POWER CONTROL ACTUATOR AND ANTI-SKID CONTROL.

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