# SDR AU970499

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 9, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Make and model: Boeing 737377
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Bearing
- Part number: 21830
- Condition: Failed
- Location: Hydraulic Pump
- Stage of operation: CL
- Nature of condition: K, J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AU970499

## Discrepancy

(AUS) HYDRAULIC `B' SYSTEM ELECTRIC PUMP TRUNNION BEARINGS FAILED.DAMAGE CAUSED TO PUMP ROTATING GROUP, PUMP HOUSING AND ELECTRIC MOTOR.

---
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.