# SDR CALA9601847

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 18, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N17326](https://openairdocs.org/aircraft/N17326), registered now
- Make and model: Boeing 7373T0
- Aircraft serial: 23456
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Filter
- Condition: Leaking
- Location: A-Hyd Syst
- Stage of operation: CR
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA9601847

## Discrepancy

THE A-SYSTEM ENGINE DRIVEN HYDRAULIC PUMP LOW PRESSURE LIGHT ILLUMINATED WHILE EN ROUTE.  THE A-HYDRAULIC SYSTEM WAS SHUT OFF AND THE QUANTITY DROPPED TO ZERO.  THE AIRCRAFT WAS DIVERTED TO DEN WHERE IT LANDED WITHOUT INCIDENT.  MAINTENANCE FOUND THE O-RING ON A SYSTEM ELECTRIC PUMP ACOUSTIC FILTER ASSEMBLY LEAKING.  THE FILTER WAS REMOVED AND REPLACED.  IN ADDITION, THE NR 1 ENGINE DRIVEN HYDRAULIC PUMP WAS REPLACED, LEAK AND OPERATIONAL CHECKS WERE GOOD.

---
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.