# SDR CALA9701355

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 12, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N44214](https://openairdocs.org/aircraft/N44214), registered now
- Make and model: Boeing 737130
- Aircraft serial: 19031
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Hyd Line
- Part number: 65445101275
- Condition: Ruptured
- Location: A-Hyd Syst
- Stage of operation: CR
- Nature of condition: K, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA9701355

## Discrepancy

THE A-SYSTEM HYDRAULIC QUANTITY AND PRESSURE DROPPED TO ZERO WITH ILLUMINATION OF A PUMP LOW PRESSURE LIGHTS.  THE A-SYSTEM HYDRAULIC FAILURE CHECKLIST WAS COMPLETED AND THE AIRCRAFT LANDED WITHOUT INCIDENT.  MAINTENANCE FOUND THE A-SYSTEM HYDRAULC PRESSURE LINE ON RT WING AFT SPAR SECTION BETWEEN ENGINE AND LANDING GEAR FORWARD AND OUTBOARD OF STRUT RUPTURED.  THE LINE WAS REPLACED USING FLEX LINE AND A DIP WAS ISSUED TO REPLACE THE FLEX LINE WITH A PERMANENT LINE WITHIN 1,200 HOURS OR 500 FLIGHTS.  IN ADDITION, BOTH THE NR 1 AND NR 2 ENGINE DRIVEN HYDRAULIC PUMPS AND THE NR 2 ELECTRIC PUMP WERE REMOVED AND REPLACED.  LEAK AND OPERATIONAL CHECKS WERE GOOD.

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