# SDR CA970507015

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 24, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Make and model: Dhav DHC6300
- Engine: Pwa PT6A27
- System (JASC): [7322 · Fuel Control/Reciprocating Engines](https://openairdocs.org/jasc/7322)
- Part: Fuel Contrl Unit
- Part number: 25244405
- Condition: Faulty
- Location: Engine
- Component: Sunstrand, 02532310103
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA970507015

## Discrepancy

(CAN) THE ENGINE SURGED 4-6 LBS OF TORQUE WHEN THE POWER LEVER WAS RETARDED FROM 45 TO 30 LBS OF TORQUE. THE TORQUE WOULD STABILIZE WITHOUT POWER LEVER INPUT. THE PROBLEM ONLY OCCURRED DURING DECELERATION. A NEW FUEL CONTROL UNIT WAS INSTALLED AND THERE WAS NO FURTHER PROBLEM.

---
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.