# SDR IPXA11566579

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 11, 2011
- Submitted: May 13, 2011
- Operation: Air carrier
- Aircraft: [N429UP](https://openairdocs.org/aircraft/N429UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25460
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Coupling
- Condition: Leaking
- Location: Hyd System
- Stage of operation: CR
- How discovered: O
- Nature of condition: K
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA11566579

## Discrepancy

C HYD QTY DECREASED TO ZERO AND SYS PRESS LIGHT ILLUMINATED. EICAS MESSAGE: C HYD SYS PRESS DISPLAYED.  FOUND NR 2 ACCUMULATOR LEAKING FROM UNION TO BOSS AREA OF PUMP. R & R NR 2 ACMP IAW MM REF 29-11-02-4.  OPS & LEAK CHECK IAW MM 29-11-00, PG 201, WAS NORMAL.

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