# SDR SWAA020847

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 22, 2002
- Submitted: April 26, 2002
- Operation: Air carrier
- Aircraft: [N388SW](https://openairdocs.org/aircraft/N388SW), registered now
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 26591
- Aircraft time: 26,861 hours, 23,852 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Pcu
- Part number: 6544761
- Condition: Leaking
- Location: Lt Mlg W/W
- Stage of operation: CR
- Nature of condition: J, K
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA020847

## Discrepancy

DECLARED EMERGENCY, DURING FLIGHT A HYD SYSTEM QTY DROPPED TO ONE-QUARTER WITH ASSOCIATED LOW PRESS LIGHT ILLUMINATED.  TIGHTENED BOTTOM FLEX LINE ON AILERON PCU PER MM

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