# SDR CA030807001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 19, 2003
- Submitted: September 4, 2003
- Operation: General aviation
- Make and model: Airbus A310
- Registry model: [Airbus A310](https://openairdocs.org/model/airbus-a310) (OpenAirDocs)
- Aircraft time: 40,481 hours
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: B-Nut
- Part number: 2244404523
- Condition: Cracked
- Location: Case Drain Line
- Stage of operation: CR
- How discovered: O
- Nature of condition: K
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA030807001

## Discrepancy

(CAN) DURING FLT, THE AIRCRAFT LOST THE B-HYDRAULIC FLUID SYSTEM.  DURING INVESTIGATION THE B-NUT WAS FOUND CRACKED ON THE NR 1 ENGINE DRIVEN PUMP CASE DRAIN LINE. THE LINE ASSEMBLY WAS REPLACED,  THE HYDRAULIC PUMP WAS REPLACED AS PRECAUTIONARY MEASURE AND THE GREEN HYDRAULIC SYSTEM FLUSHED.

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