# SDR 2003F00549

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 13, 2003
- Submitted: September 8, 2003
- Operation: Air carrier
- Aircraft: [N538PA](https://openairdocs.org/aircraft/N538PA), registered now
- Make and model: Bag JETSTM3101
- Aircraft serial: 751
- Engine: Garrtt TPE33110UG
- System (JASC): [7210 · Turbine Engine Reduction Gear](https://openairdocs.org/jasc/7210)
- Part: Torque Ring
- Part number: 310703411
- Condition: Failed
- Location: Nr 1 Engine
- Stage of operation: CL
- How discovered: O
- Nature of condition: R
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2003F00549

## Discrepancy

FLT 3525 - BGR - PILOT REPORTED AFTER TAKEOFF, NR 1 ENGINE TORQUE GAUGE BEGAN TO FLUCTUATE FROM 120 PERCENT OT 0 PERCENT.  ENGINE BEGAN TO TTL DUE TO TORQUE READING.  TTL WAS TURNED OFF AND ENGINE CONTINUED AND STABILIZED.  THEN TORQUE GAUGE DROPPED TO 0 PERCENT AND STAYED THERE.  REMOVED AND REPLACED NR 1 ENGINE TORQUE RING ASSEMBLY WITH SERVICEABLE UNIT IAW GARRETT MM 72-10-12.  SET SIGNAL CONDITIONER TO CURRENT DSC SHEET.  (M)

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