# SDR SWAA001002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 3, 2000
- Submitted: June 6, 2000
- Operation: Air carrier
- Aircraft: N687SW
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 23388
- Aircraft time: 43,520 hours, 33,779 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Valve
- Part number: BACV10CE3
- Condition: Inoperative
- Location: Mlg Ww
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA001002

## Discrepancy

DECLARED EMERGENCY, A-SYS HYD FAILED DURING APPROACH.  REMOVED AND REPLACED A-SYS HYD MODULE CHECK VALVE PER MM.

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