# SDR XNOA01091

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 27, 2002
- Submitted: December 1, 2002
- Operation: Air carrier
- Aircraft: [N793A](https://openairdocs.org/aircraft/N793A), registered now
- Make and model: Boeing 727227
- Aircraft serial: 20774
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Condition: Failed
- Location: Hyd System
- Stage of operation: CL
- 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/XNOA01091

## Discrepancy

AFTER T/O COMPLETE LOSS OF SYS "A" HYDRAULICS. MEMORY ITEM & EMERGENCY ABNORMAL CHECKLISTS PERFORMED. FOUND NR 2 ENGINE DRIVEN PUMP LEAKING FROM FLANGE BOLTS. REMOVED & REPLACED PUMP AS PER MM 29-11-31.

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