# SDR 2003UALA00259

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 10, 2003
- Submitted: March 18, 2003
- Operation: Air carrier
- Aircraft: N548UA
- Make and model: Boeing 757222
- Aircraft serial: 25396
- Aircraft time: 41,530 hours, 12,207 cycles
- Engine: Pwa PW2037
- System (JASC): [2710 · Aileron Control System](https://openairdocs.org/jasc/2710)
- Part: Actuator
- Condition: Leaking
- Location: Lt Aileron
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2003UALA00259

## Discrepancy

CENTER HYDRAULIC SYSTEM QUANTITY EICAS MESSAGE. SYSTEM SECURED AT .23.   EXCESSIVE HYDRAULIC LEAKAGE FROM LEFT AILERON POWER CONTROL ACTUATOR (PCA).   REPLACED SUBJECT ACTUATOR WITH SERVICEABLE UNIT.

---
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.