# SDR USAASB97137

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 24, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N510AU
- Make and model: Boeing 737-3B7
- Registry model: [Boeing 737-3B7](https://openairdocs.org/model/boeing-737-3b7) (OpenAirDocs)
- Aircraft serial: 23385
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: O-Ring
- Part number: 049414
- Condition: Failed
- Location: A-Hyd System
- Stage of operation: CR
- Nature of condition: J, K
- Precautionary procedure: A, H
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAASB97137

## Discrepancy

BWI - FLT 2399 - AT FL 210, THE NR 1 ENGINE A-SYSTEM HYDRAULIC LOW PRESSURE LIGHT ILLUMINATED.  CAPTAIN SHUT DOWN THE NR 1 ENGINE HYDRAULIC PUMP AND MAINTAINED 3,000 PSI AND ONE-FOURTH QUANTITY IN A-SYSTEM HYDRAULICS.  FLIGHT DIVERTED TO BWI AS A PRECAUTIONARY MEASURE AND LANDED WITHOUT FURTHER INCIDENT.  NO EMERGENCY WAS DECLARED.  THE AIRCRAFT TAXIED TO THE GATE ON ITS OWN.  MAINTENANCE REMOVED AND REPLACED THE O-RING AT THE A-SYSTEM ELECTRIC HYDRAULIC PUMP ACOUSTIC FILTER.  SERVICED RESERVOIR.  NO LEAKS NOTED.  (X)

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