# SDR SWAA050991

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 2, 2005
- Submitted: April 7, 2005
- Operation: Air carrier
- Aircraft: [N520SW](https://openairdocs.org/aircraft/N520SW), registered now
- Make and model: Boeing 737-5H4
- Registry model: [Boeing 737-5H4](https://openairdocs.org/model/boeing-737-5h4) (OpenAirDocs)
- Aircraft serial: 25319
- Aircraft time: 43,388 hours, 42,730 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Line
- Part number: 65C26839
- Condition: Chafed
- Location: Hyd System
- Stage of operation: TO
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA050991

## Discrepancy

AIR TURNBACK, DECLARED EMERGENCY.  LOST B-HYDRAULIC SYSTEM ON TAKEOFF.  REMOVED AND REPLACED HYDRAULIC LINES FROM B-SYSTEM PUMP TO B-SYSTEM CONTROL MODULE & B-SYSTEM PUMP CASE DRAIN TO T-FITTING PER MM.

---
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.