# SDR AU960190

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 2, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Make and model: Gulstm G73
- Engine: Pwa R1340AN1
- Propeller: Hamstd 23D40
- System (JASC): [6120 · Propeller Controlling System](https://openairdocs.org/jasc/6120)
- Part: Governor
- Part number: 4GBU80M
- Condition: Faulty
- Location: Prop Cntrl Sys
- Stage of operation: CR
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AU960190

## Discrepancy

(AUS) RH ENGINE PROPELLER GOVERNOR TRANSFER VALVE FAULTY - VALVE ALLOWED FEATHER PUMP PRESSURE TO PARTIALLY BYPASS PREVENTING UNFEATHERING OF PROPELLER

---
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.