# SDR AALA20012186

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 31, 2001
- Submitted: January 31, 2002
- Operation: Air carrier
- Aircraft: [N620AA](https://openairdocs.org/aircraft/N620AA), registered now
- Make and model: Boeing 757223
- Aircraft serial: 24578
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Hydraulic Line
- Part number: 4007543
- Condition: Leaking
- Location: Nr 1 Engine
- 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/AALA20012186

## Discrepancy

DFW - FLT 1086 - EN ROUTE DFW-BOS, LEFT HYDRAULIC PRESSURE DECREASED TO ZERO.  RETURNED DFW AND LANDED WITHOUT FURTHER INCIDENT.  REPLACED LEFT SIDE RETURN LINE.  NO LEAKS NOTED.  SYSTEM GROUND CHECKED NORMAL OPERATION.  (M)

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